
906 
FNUS51 KAKQ 190856
FWFAKQ

FIRE WEATHER PLANNING FORECAST FOR CEN/ERN VA...NE NC...MD ERN SHORE
NATIONAL WEATHER SERVICE WAKEFIELD VA
456 AM EDT THU MAR 19 2009

.DISCUSSION...
A COLD FRONT WILL PUSH THROUGH THE REGION LATER TODAY...BRINGING A
CHANCE FOR RAIN MAINLY LATER THIS AFTERNOON AND EVENING. NORTH
WINDS WILL BRING MUCH COOLER WEATHER TO THE MID ATLANTIC ON 
FRIDAY...ESPECIALLY ALONG THE COAST. HIGH PRESSURE RETURNS LATER
FRIDAY THROUGH THE WEEKEND WITH DRY CONDITIONS AND COOL
TEMPERATURES PREVAILING THROUGH SATURDAY. A WARMING TREND BEGINS
SUNDAY.

MDZ021>023-192130-
DORCHESTER-WICOMICO-SOMERSET-
INCLUDING THE CITIES OF...CAMBRIDGE...SALISBURY...CRISFIELD...
PRINCESS ANNE
456 AM EDT THU MAR 19 2009

                      TODAY        TONIGHT      FRI          

CLOUD COVER           MCLDY        MCLDY        PCLDY        
PRECIP TYPE           SHOWERS      SHOWERS      NONE         
CHANCE PRECIP (%)     60           60           10           
MAX/MIN TEMP          59           34           48           
MAX/MIN RH (%)        51           100          38           
WND20FT2MIN/EARLY(MPH)SW 4-8       N 4-8        N 6-10 G16   
WND20FT2MIN/LATE(MPH) NW 7-11      N 4-8        N 9-13       
PRECIP AMOUNT         0.04         0.03         0.00         
PRECIP DURATION       2            2            0            
MAX MIXING HGT(FT-AGL)2800                      6300         
TRANSPORT WIND (MPH)  NW 16                     N 14         
VENT RATE (FT-MPH)    44800                     88200        
DISPERSION (EVENING)               POOR                      
ADI EARLY             30 FAIR      25 FAIR      30 FAIR      
ADI LATE              37 FAIR      10 POOR      64 GOOD      
MAX LVORI EARLY       4            5            5            
MAX LVORI LATE        1            8            1            
LAL                   1            1            1            
HAINES INDEX          5            5            5            

REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.

.FORECAST FOR DAYS 3 THROUGH 7...
.FRIDAY NIGHT...MOSTLY CLEAR. LOWS IN THE MID 20S. NORTHEAST
WINDS 5 TO 10 MPH. 
.SATURDAY...SUNNY IN THE MORNING...THEN BECOMING MOSTLY CLEAR.
HIGHS IN THE LOWER 50S. MINIMUM RH 34 PERCENT UNTIL EARLY
EVENING. NORTHEAST WINDS AROUND 5 MPH...BECOMING SOUTHEAST IN THE
AFTERNOON AND EVENING. 
.SUNDAY AND SUNDAY NIGHT...MOSTLY CLEAR. LOWS IN THE UPPER 20S.
HIGHS IN THE UPPER 50S. MINIMUM RH 36 PERCENT. SOUTHWEST WINDS
AROUND 5 MPH. 
.MONDAY AND MONDAY NIGHT...PARTLY CLOUDY. A SLIGHT CHANCE OF
RAIN. LOWS IN THE LOWER 30S. HIGHS IN THE MID 50S. MINIMUM RH
43 PERCENT. EAST WINDS 5 TO 10 MPH. 
.TUESDAY AND TUESDAY NIGHT...MOSTLY CLOUDY. A SLIGHT CHANCE OF
RAIN. LOWS IN THE UPPER 30S. HIGHS AROUND 60. MINIMUM RH
43 PERCENT. SOUTHEAST WINDS 5 TO 10 MPH. 
.WEDNESDAY AND WEDNESDAY NIGHT...PARTLY CLOUDY. A SLIGHT CHANCE
OF SHOWERS. LOWS IN THE LOWER 40S. HIGHS IN THE LOWER 60S.
MINIMUM RH 44 PERCENT. SOUTH WINDS 5 TO 10 MPH. 

$$

MDZ024-192130-
INLAND WORCESTER-
INCLUDING THE CITIES OF...SNOW HILL
456 AM EDT THU MAR 19 2009

                      TODAY        TONIGHT      FRI          

CLOUD COVER           PCLDY        CLOUDY       PCLDY        
PRECIP TYPE           SHOWERS      SHOWERS      NONE         
CHANCE PRECIP (%)     60           60           10           
MAX/MIN TEMP          59           34           46           
MAX/MIN RH (%)        51           100          41           
WND20FT2MIN/EARLY(MPH)SW 6-10      N 8-12       N 8-12       
WND20FT2MIN/LATE(MPH) W 7-11       N 6-10       N 10-14      
PRECIP AMOUNT         0.03         0.05         0.00         
PRECIP DURATION       2            2            0            
MAX MIXING HGT(FT-AGL)2400                      5400         
TRANSPORT WIND (MPH)  NW 12                     N 15         
VENT RATE (FT-MPH)    28800                     81000        
DISPERSION (EVENING)               POOR                      
ADI EARLY             34 FAIR      26 FAIR      30 FAIR      
ADI LATE              34 FAIR      9 POOR       45 GEN GOOD  
MAX LVORI EARLY       5            5            5            
MAX LVORI LATE        2            8            1            
LAL                   1            1            1            
HAINES INDEX          5            4            4            

REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.

.FORECAST FOR DAYS 3 THROUGH 7...
.FRIDAY NIGHT...MOSTLY CLEAR. LOWS IN THE MID 20S. NORTHEAST
WINDS 5 TO 10 MPH. 
.SATURDAY...SUNNY IN THE MORNING...THEN BECOMING MOSTLY CLEAR.
HIGHS AROUND 50. MINIMUM RH 35 PERCENT UNTIL EARLY EVENING.
NORTHEAST WINDS AROUND 5 MPH...BECOMING SOUTHEAST IN THE
AFTERNOON AND EVENING. 
.SUNDAY AND SUNDAY NIGHT...MOSTLY CLEAR. LOWS IN THE UPPER 20S.
HIGHS IN THE MID 50S. MINIMUM RH 36 PERCENT. SOUTHWEST WINDS
AROUND 5 MPH. 
.MONDAY AND MONDAY NIGHT...PARTLY CLOUDY. A SLIGHT CHANCE OF
RAIN. LOWS IN THE MID 30S. HIGHS IN THE MID 50S. MINIMUM RH
44 PERCENT. EAST WINDS 5 TO 10 MPH. 
.TUESDAY AND TUESDAY NIGHT...PARTLY CLOUDY. A SLIGHT CHANCE OF
RAIN. LOWS IN THE UPPER 30S. HIGHS IN THE UPPER 50S. MINIMUM RH
44 PERCENT. SOUTHEAST WINDS AROUND 5 MPH. 
.WEDNESDAY AND WEDNESDAY NIGHT...PARTLY CLOUDY. A SLIGHT CHANCE
OF SHOWERS. LOWS IN THE LOWER 40S. HIGHS AROUND 60. MINIMUM RH
46 PERCENT. SOUTH WINDS 5 TO 10 MPH. 

$$

MDZ025-192130-
MARYLAND BEACHES-
INCLUDING THE CITIES OF...OCEAN CITY
456 AM EDT THU MAR 19 2009

                      TODAY        TONIGHT      FRI          

CLOUD COVER           PCLDY        CLOUDY       PCLDY        
PRECIP TYPE           SHOWERS      SHOWERS      NONE         
CHANCE PRECIP (%)     60           60           10           
MAX/MIN TEMP          58           35           45           
MAX/MIN RH (%)        55           93           48           
WND20FT2MIN/EARLY(MPH)SW 10-14 G20 N 10-14 G20  N 11-15 G22  
WND20FT2MIN/LATE(MPH) W 9-13       N 9-13 G18   N 13-17 G23  
PRECIP AMOUNT         0.03         0.05         0.00         
PRECIP DURATION       2            2            0            
MAX MIXING HGT(FT-AGL)1900                      4000         
TRANSPORT WIND (MPH)  NW 10                     N 16         
VENT RATE (FT-MPH)    19000                     64000        
DISPERSION (EVENING)               FAIR                      
ADI EARLY             19 GEN POOR  21 FAIR      37 FAIR      
ADI LATE              24 FAIR      10 POOR      44 GEN GOOD  
MAX LVORI EARLY       4            4            5            
MAX LVORI LATE        2            6            1            
LAL                   1            1            1            
HAINES INDEX          5            4            4            

REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.

.FORECAST FOR DAYS 3 THROUGH 7...
.FRIDAY NIGHT...MOSTLY CLEAR. LOWS IN THE UPPER 20S. NORTHEAST
WINDS 10 TO 15 MPH. 
.SATURDAY...SUNNY IN THE MORNING...THEN BECOMING MOSTLY CLEAR.
HIGHS IN THE MID 40S. MINIMUM RH 44 PERCENT UNTIL EARLY EVENING.
NORTHEAST WINDS 5 TO 10 MPH...BECOMING SOUTHEAST IN THE AFTERNOON
AND EVENING. 
.SUNDAY AND SUNDAY NIGHT...MOSTLY CLEAR. LOWS AROUND 30. HIGHS IN
THE LOWER 50S. MINIMUM RH 43 PERCENT. SOUTHWEST WINDS 5 TO
10 MPH. 
.MONDAY AND MONDAY NIGHT...PARTLY CLOUDY. A SLIGHT CHANCE OF
RAIN. LOWS IN THE UPPER 30S. HIGHS IN THE LOWER 50S. MINIMUM RH
51 PERCENT. EAST WINDS 5 TO 10 MPH. 
.TUESDAY AND TUESDAY NIGHT...PARTLY CLOUDY. A SLIGHT CHANCE OF
RAIN. LOWS AROUND 40. HIGHS IN THE MID 50S. MINIMUM RH
51 PERCENT. SOUTHEAST WINDS 5 TO 10 MPH. 
.WEDNESDAY AND WEDNESDAY NIGHT...PARTLY CLOUDY. A SLIGHT CHANCE
OF SHOWERS. LOWS IN THE LOWER 40S. HIGHS IN THE MID 50S. MINIMUM
RH 52 PERCENT. SOUTH WINDS 5 TO 10 MPH. 

$$

NCZ012>014-030-192130-
NORTHAMPTON NC-HERTFORD-GATES-BERTIE-
INCLUDING THE CITIES OF...MARGARETTSVILLE...AHOSKIE
456 AM EDT THU MAR 19 2009

                      TODAY        TONIGHT      FRI          

CLOUD COVER           PCLDY        MCLDY        PCLDY        
PRECIP TYPE           TSTMS        SHOWERS      RAIN         
CHANCE PRECIP (%)     20           70           20           
MAX/MIN TEMP          71           40           52           
MAX/MIN RH (%)        37           94           39           
WND20FT2MIN/EARLY(MPH)SW 3-7       N 6-10       N 6-10       
WND20FT2MIN/LATE(MPH) W 6-10       NE 6-10      N 8-12       
PRECIP AMOUNT         0.00         0.29         0.00         
PRECIP DURATION       0            3            0            
MAX MIXING HGT(FT-AGL)5200                      5900         
TRANSPORT WIND (MPH)  W 14                      N 15         
VENT RATE (FT-MPH)    72800                     88500        
DISPERSION (EVENING)               POOR                      
ADI EARLY             46 GEN GOOD  64 GOOD      38 FAIR      
ADI LATE              60 GEN GOOD  15 GEN POOR  67 GOOD      
MAX LVORI EARLY       5            3            5            
MAX LVORI LATE        1            5            1            
LAL                   2            1            1            
HAINES INDEX          5            5            5            

REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.

.FORECAST FOR DAYS 3 THROUGH 7...
.FRIDAY NIGHT...MOSTLY CLEAR. LOWS IN THE LOWER 30S. NORTHEAST
WINDS 5 TO 10 MPH. 
.SATURDAY...SUNNY IN THE MORNING...THEN BECOMING MOSTLY CLEAR.
HIGHS IN THE MID 50S. MINIMUM RH 32 PERCENT UNTIL EARLY EVENING.
NORTHEAST WINDS 5 TO 10 MPH. 
.SUNDAY AND SUNDAY NIGHT...MOSTLY CLEAR. LOWS IN THE LOWER 30S.
HIGHS IN THE LOWER 60S. MINIMUM RH 29 PERCENT. SOUTH WINDS AROUND
5 MPH. 
.MONDAY AND MONDAY NIGHT...MOSTLY CLEAR. LOWS IN THE UPPER 30S.
HIGHS IN THE LOWER 60S. MINIMUM RH 36 PERCENT. SOUTHEAST WINDS
AROUND 5 MPH. 
.TUESDAY AND TUESDAY NIGHT...PARTLY CLOUDY. LOWS IN THE MID 40S.
HIGHS IN THE UPPER 60S. MINIMUM RH 38 PERCENT. SOUTHEAST WINDS
AROUND 5 MPH. 
.WEDNESDAY AND WEDNESDAY NIGHT...PARTLY CLOUDY. A SLIGHT CHANCE
OF SHOWERS. LOWS IN THE UPPER 40S. HIGHS IN THE UPPER 60S.
MINIMUM RH 40 PERCENT. SOUTH WINDS 5 TO 10 MPH. 

$$

NCZ015>017-031-032-192130-
PASQUOTANK-CAMDEN-INLAND CURRITUCK-CHOWAN-PERQUIMANS-
INCLUDING THE CITIES OF...ELIZABETH CITY...EDENTON
456 AM EDT THU MAR 19 2009

                      TODAY        TONIGHT      FRI          

CLOUD COVER           PCLDY        MCLDY        PCLDY        
PRECIP TYPE           TSTMS        SHOWERS      RAIN         
CHANCE PRECIP (%)     20           60           40           
MAX/MIN TEMP          71           41           50           
MAX/MIN RH (%)        37           93           48           
WND20FT2MIN/EARLY(MPH)SW 5-9       N 8-12 G18   N 9-13 G20   
WND20FT2MIN/LATE(MPH) SW 7-11 G16  NE 9-13 G20  N 11-15 G23  
PRECIP AMOUNT         0.00         0.44         0.00         
PRECIP DURATION       0            2            0            
MAX MIXING HGT(FT-AGL)5200                      4800         
TRANSPORT WIND (MPH)  W 14                      N 17         
VENT RATE (FT-MPH)    72800                     81600        
DISPERSION (EVENING)               FAIR                      
ADI EARLY             33 FAIR      46 GEN GOOD  36 FAIR      
ADI LATE              64 GOOD      21 FAIR      45 GEN GOOD  
MAX LVORI EARLY       6            3            5            
MAX LVORI LATE        1            5            2            
LAL                   2            1            1            
HAINES INDEX          5            4            5            

REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.

.FORECAST FOR DAYS 3 THROUGH 7...
.FRIDAY NIGHT...MOSTLY CLEAR. LOWS IN THE LOWER 30S. NORTHEAST
WINDS 15 TO 20 MPH. 
.SATURDAY...MOSTLY CLEAR. HIGHS IN THE LOWER 50S. MINIMUM RH
38 PERCENT UNTIL EARLY EVENING. NORTHEAST WINDS 10 TO 15 MPH. 
.SUNDAY AND SUNDAY NIGHT...MOSTLY CLEAR. LOWS IN THE LOWER 30S.
HIGHS AROUND 60. MINIMUM RH 32 PERCENT. SOUTHEAST WINDS AROUND
5 MPH. 
.MONDAY AND MONDAY NIGHT...MOSTLY CLEAR. LOWS IN THE UPPER 30S.
HIGHS IN THE LOWER 60S. MINIMUM RH 39 PERCENT. EAST WINDS AROUND
5 MPH. 
.TUESDAY AND TUESDAY NIGHT...PARTLY CLOUDY. LOWS IN THE MID 40S.
HIGHS IN THE UPPER 60S. MINIMUM RH 41 PERCENT. SOUTHEAST WINDS
5 TO 10 MPH. 
.WEDNESDAY AND WEDNESDAY NIGHT...PARTLY CLOUDY. A SLIGHT CHANCE
OF SHOWERS. LOWS IN THE UPPER 40S. HIGHS IN THE MID 60S. MINIMUM
RH 45 PERCENT. SOUTH WINDS 5 TO 10 MPH. 

$$

NCZ102-192130-
OUTER BANKS CURRITUCK-
INCLUDING THE CITIES OF...COROLLA
456 AM EDT THU MAR 19 2009

                      TODAY        TONIGHT      FRI          

CLOUD COVER           PCLDY        CLOUDY       PCLDY        
PRECIP TYPE           TSTMS        SHOWERS      RAIN         
CHANCE PRECIP (%)     20           60           40           
MAX/MIN TEMP          60           41           45           
MAX/MIN RH (%)        53           91           64           
WND20FT2MIN/EARLY(MPH)SW 8-12      N 11-15 G20  N 14-18 G24  
WND20FT2MIN/LATE(MPH) SW 9-13      NE 15-19 G24 N 16-20 G26  
PRECIP AMOUNT         0.00         0.46         0.00         
PRECIP DURATION       0            2            0            
MAX MIXING HGT(FT-AGL)2900                      1600         
TRANSPORT WIND (MPH)  SW 14                     N 22         
VENT RATE (FT-MPH)    40600                     35200        
DISPERSION (EVENING)               GOOD                      
ADI EARLY             15 GEN POOR  28 FAIR      37 FAIR      
ADI LATE              16 GEN POOR  25 FAIR      39 FAIR      
MAX LVORI EARLY       6            3            4            
MAX LVORI LATE        2            4            3            
LAL                   2            1            1            
HAINES INDEX          5            4            5            

REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.

.FORECAST FOR DAYS 3 THROUGH 7...
.FRIDAY NIGHT...MOSTLY CLEAR. LOWS IN THE MID 30S. NORTHEAST
WINDS 15 TO 20 MPH. 
.SATURDAY...MOSTLY CLEAR. HIGHS IN THE UPPER 40S. MINIMUM RH
49 PERCENT UNTIL EARLY EVENING. NORTHEAST WINDS 10 TO 15 MPH. 
.SUNDAY AND SUNDAY NIGHT...MOSTLY CLEAR. LOWS IN THE MID 30S.
HIGHS IN THE MID 50S. MINIMUM RH 42 PERCENT. SOUTHEAST WINDS 5 TO
10 MPH. 
.MONDAY AND MONDAY NIGHT...MOSTLY CLEAR. LOWS IN THE UPPER 30S.
HIGHS IN THE LOWER 60S. MINIMUM RH 44 PERCENT. EAST WINDS 5 TO
10 MPH. 
.TUESDAY AND TUESDAY NIGHT...PARTLY CLOUDY. LOWS IN THE MID 40S.
HIGHS IN THE MID 60S. MINIMUM RH 44 PERCENT. SOUTHEAST WINDS 5 TO
10 MPH. 
.WEDNESDAY AND WEDNESDAY NIGHT...PARTLY CLOUDY. A SLIGHT CHANCE
OF SHOWERS. LOWS IN THE UPPER 40S. HIGHS IN THE MID 60S. MINIMUM
RH 47 PERCENT. SOUTH WINDS 5 TO 10 MPH. 

$$

VAZ048-049-061-062-068-069-192130-
FLUVANNA-LOUISA-CUMBERLAND-GOOCHLAND-AMELIA-POWHATAN-
INCLUDING THE CITIES OF...LOUISA...GOOCHLAND
456 AM EDT THU MAR 19 2009

                      TODAY        TONIGHT      FRI          

CLOUD COVER           MCLDY        MCLDY        PCLDY        
PRECIP TYPE           SHOWERS      SHOWERS      NONE         
CHANCE PRECIP (%)     60           60           10           
MAX/MIN TEMP          65           34           53           
MAX/MIN RH (%)        43           88           28           
WND20FT2MIN/EARLY(MPH)SW 3-7       N 3-7        N 4-8        
WND20FT2MIN/LATE(MPH) NW 6-10      LGT/VAR      N 5-9        
PRECIP AMOUNT         0.04         0.02         0.00         
PRECIP DURATION       2            2            0            
MAX MIXING HGT(FT-AGL)4000                      7000         
TRANSPORT WIND (MPH)  NW 12                     N 13         
VENT RATE (FT-MPH)    48000                     91000        
DISPERSION (EVENING)               VERY POOR                 
ADI EARLY             27 FAIR      28 FAIR      61 GOOD      
ADI LATE              35 FAIR      13 GEN POOR  65 GOOD      
MAX LVORI EARLY       4            4            3            
MAX LVORI LATE        1            4            1            
LAL                   1            1            1            
HAINES INDEX          5            4            5            

REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.

.FORECAST FOR DAYS 3 THROUGH 7...
.FRIDAY NIGHT...MOSTLY CLEAR. LOWS IN THE MID 20S. NORTHEAST
WINDS AROUND 5 MPH. 
.SATURDAY...SUNNY IN THE MORNING...THEN BECOMING MOSTLY CLEAR.
HIGHS IN THE MID 50S. MINIMUM RH 27 PERCENT UNTIL EARLY EVENING.
NORTH WINDS AROUND 5 MPH...BECOMING SOUTHEAST AROUND 5 MPH IN THE
AFTERNOON AND EVENING. 
.SUNDAY AND SUNDAY NIGHT...MOSTLY CLEAR. LOWS AROUND 30. HIGHS IN
THE LOWER 60S. MINIMUM RH 32 PERCENT. SOUTH WINDS AROUND 5 MPH. 
.MONDAY AND MONDAY NIGHT...PARTLY CLOUDY. LOWS IN THE UPPER 30S.
HIGHS IN THE MID 60S. MINIMUM RH 38 PERCENT. EAST WINDS AROUND
5 MPH. 
.TUESDAY AND TUESDAY NIGHT...PARTLY CLOUDY. A SLIGHT CHANCE OF
RAIN. LOWS IN THE LOWER 40S. HIGHS IN THE UPPER 60S. MINIMUM RH
39 PERCENT. SOUTH WINDS AROUND 5 MPH. 
.WEDNESDAY AND WEDNESDAY NIGHT...MOSTLY CLOUDY. A SLIGHT CHANCE
OF SHOWERS. LOWS IN THE MID 40S. HIGHS IN THE UPPER 60S. MINIMUM
RH 42 PERCENT. SOUTH WINDS 5 TO 10 MPH. 

$$

VAZ060-065>067-192130-
PRINCE EDWARD-MECKLENBURG-LUNENBURG-NOTTOWAY-
INCLUDING THE CITIES OF...FARMVILLE...SOUTH HILL...CREWE
456 AM EDT THU MAR 19 2009

                      TODAY        TONIGHT      FRI          

CLOUD COVER           PCLDY        MCLDY        PCLDY        
PRECIP TYPE           SHOWERS      SHOWERS      NONE         
CHANCE PRECIP (%)     50           60           10           
MAX/MIN TEMP          70           37           55           
MAX/MIN RH (%)        37           88           28           
WND20FT2MIN/EARLY(MPH)SW 3-7       N 3-7        N 4-8        
WND20FT2MIN/LATE(MPH) W 5-9        LGT/VAR      N 5-9        
PRECIP AMOUNT         0.02         0.04         0.00         
PRECIP DURATION       2            2            0            
MAX MIXING HGT(FT-AGL)5000                      6800         
TRANSPORT WIND (MPH)  W 15                      N 13         
VENT RATE (FT-MPH)    75000                     88400        
DISPERSION (EVENING)               POOR                      
ADI EARLY             26 FAIR      41 GEN GOOD  54 GEN GOOD  
ADI LATE              58 GEN GOOD  13 GEN POOR  62 GOOD      
MAX LVORI EARLY       4            4            4            
MAX LVORI LATE        1            5            1            
LAL                   1            1            1            
HAINES INDEX          5            4            5            

REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.

.FORECAST FOR DAYS 3 THROUGH 7...
.FRIDAY NIGHT...MOSTLY CLEAR. LOWS IN THE UPPER 20S. NORTHEAST
WINDS AROUND 5 MPH. 
.SATURDAY...MOSTLY CLEAR. HIGHS IN THE MID 50S. MINIMUM RH
28 PERCENT UNTIL EARLY EVENING. NORTHEAST WINDS AROUND 5 MPH...
BECOMING SOUTHEAST AROUND 5 MPH IN THE AFTERNOON AND EVENING. 
.SUNDAY AND SUNDAY NIGHT...MOSTLY CLEAR. LOWS AROUND 30. HIGHS IN
THE LOWER 60S. MINIMUM RH 33 PERCENT. SOUTH WINDS AROUND 5 MPH. 
.MONDAY AND MONDAY NIGHT...PARTLY CLOUDY. LOWS IN THE UPPER 30S.
HIGHS IN THE MID 60S. MINIMUM RH 36 PERCENT. SOUTH WINDS AROUND
5 MPH. 
.TUESDAY AND TUESDAY NIGHT...PARTLY CLOUDY. LOWS IN THE LOWER
40S. HIGHS IN THE UPPER 60S. MINIMUM RH 38 PERCENT. SOUTH WINDS
AROUND 5 MPH. 
.WEDNESDAY AND WEDNESDAY NIGHT...MOSTLY CLOUDY. A SLIGHT CHANCE
OF SHOWERS. LOWS IN THE MID 40S. HIGHS IN THE UPPER 60S. MINIMUM
RH 42 PERCENT. SOUTH WINDS 5 TO 10 MPH. 

$$

VAZ063-064-070>076-082-083-090-192130-
HANOVER-CAROLINE-CHESTERFIELD-HENRICO-KING WILLIAM-KING AND QUEEN-
ESSEX-WESTMORELAND-RICHMOND-CHARLES CITY-NEW KENT-JAMES CITY-
INCLUDING THE CITIES OF...ASHLAND...COLONIAL HEIGHTS...RICHMOND...
TAPPAHANNOCK...WILLIAMSBURG
456 AM EDT THU MAR 19 2009

                      TODAY        TONIGHT      FRI          

CLOUD COVER           PCLDY        MCLDY        PCLDY        
PRECIP TYPE           SHOWERS      SHOWERS      NONE         
CHANCE PRECIP (%)     60           60           10           
MAX/MIN TEMP          66           35           51           
MAX/MIN RH (%)        42           93           30           
WND20FT2MIN/EARLY(MPH)SW 5-9       N 3-7        N 5-9        
WND20FT2MIN/LATE(MPH) NW 5-9       N 3-7        N 6-10       
PRECIP AMOUNT         0.04         0.03         0.00         
PRECIP DURATION       2            2            0            
MAX MIXING HGT(FT-AGL)3900                      6800         
TRANSPORT WIND (MPH)  NW 12                     N 14         
VENT RATE (FT-MPH)    46800                     95200        
DISPERSION (EVENING)               VERY POOR                 
ADI EARLY             30 FAIR      37 FAIR      42 GEN GOOD  
ADI LATE              42 GEN GOOD  14 GEN POOR  67 GOOD      
MAX LVORI EARLY       4            4            3            
MAX LVORI LATE        1            6            1            
LAL                   1            1            1            
HAINES INDEX          5            4            5            

REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.

.FORECAST FOR DAYS 3 THROUGH 7...
.FRIDAY NIGHT...CLEAR. LOWS IN THE UPPER 20S. NORTHEAST WINDS
5 TO 10 MPH. 
.SATURDAY...SUNNY IN THE MORNING...THEN BECOMING MOSTLY CLEAR.
HIGHS IN THE MID 50S. MINIMUM RH 29 PERCENT UNTIL EARLY EVENING.
NORTH WINDS AROUND 5 MPH...BECOMING SOUTHEAST AROUND 5 MPH IN THE
AFTERNOON AND EVENING. 
.SUNDAY AND SUNDAY NIGHT...MOSTLY CLEAR. LOWS IN THE LOWER 30S.
HIGHS IN THE LOWER 60S. MINIMUM RH 33 PERCENT. SOUTH WINDS AROUND
5 MPH. 
.MONDAY AND MONDAY NIGHT...PARTLY CLOUDY. LOWS IN THE UPPER 30S.
HIGHS IN THE LOWER 60S. MINIMUM RH 40 PERCENT. SOUTHEAST WINDS
AROUND 5 MPH. 
.TUESDAY AND TUESDAY NIGHT...PARTLY CLOUDY. LOWS IN THE LOWER
40S. HIGHS IN THE MID 60S. MINIMUM RH 40 PERCENT. SOUTHEAST WINDS
5 TO 10 MPH. 
.WEDNESDAY AND WEDNESDAY NIGHT...PARTLY CLOUDY. A SLIGHT CHANCE
OF SHOWERS. LOWS IN THE MID 40S. HIGHS IN THE MID 60S. MINIMUM RH
42 PERCENT. SOUTH WINDS 5 TO 10 MPH. 

$$

VAZ077-078-084>086-192130-
NORTHUMBERLAND-LANCASTER-GLOUCESTER-MIDDLESEX-MATHEWS-
456 AM EDT THU MAR 19 2009

                      TODAY        TONIGHT      FRI          

CLOUD COVER           PCLDY        CLOUDY       PCLDY        
PRECIP TYPE           SHOWERS      SHOWERS      NONE         
CHANCE PRECIP (%)     60           60           10           
MAX/MIN TEMP          64           37           50           
MAX/MIN RH (%)        43           95           38           
WND20FT2MIN/EARLY(MPH)SW 8-12      N 5-9        N 8-12 G18   
WND20FT2MIN/LATE(MPH) NW 5-9       N 4-8        N 9-13 G18   
PRECIP AMOUNT         0.03         0.06         0.00         
PRECIP DURATION       2            2            0            
MAX MIXING HGT(FT-AGL)3700                      5400         
TRANSPORT WIND (MPH)  NW  9                     N 15         
VENT RATE (FT-MPH)    33300                     81000        
DISPERSION (EVENING)               POOR                      
ADI EARLY             31 FAIR      44 GEN GOOD  35 FAIR      
ADI LATE              48 GEN GOOD  15 GEN POOR  58 GEN GOOD  
MAX LVORI EARLY       4            4            4            
MAX LVORI LATE        2            7            1            
LAL                   1            1            1            
HAINES INDEX          5            4            5            

REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.

.FORECAST FOR DAYS 3 THROUGH 7...
.FRIDAY NIGHT...MOSTLY CLEAR. LOWS AROUND 30. NORTHEAST WINDS
5 TO 10 MPH. 
.SATURDAY...SUNNY IN THE MORNING...THEN BECOMING MOSTLY CLEAR.
HIGHS IN THE LOWER 50S. MINIMUM RH 37 PERCENT UNTIL EARLY
EVENING. NORTHEAST WINDS 5 TO 10 MPH...BECOMING SOUTHEAST IN THE
AFTERNOON AND EVENING. 
.SUNDAY AND SUNDAY NIGHT...MOSTLY CLEAR. LOWS IN THE LOWER 30S.
HIGHS IN THE UPPER 50S. MINIMUM RH 34 PERCENT. SOUTH WINDS AROUND
5 MPH. 
.MONDAY AND MONDAY NIGHT...PARTLY CLOUDY. LOWS IN THE UPPER 30S.
HIGHS IN THE UPPER 50S. MINIMUM RH 42 PERCENT. SOUTHEAST WINDS
5 TO 10 MPH. 
.TUESDAY AND TUESDAY NIGHT...PARTLY CLOUDY. LOWS IN THE LOWER
40S. HIGHS IN THE LOWER 60S. MINIMUM RH 41 PERCENT. SOUTHEAST
WINDS 5 TO 10 MPH. 
.WEDNESDAY AND WEDNESDAY NIGHT...PARTLY CLOUDY. A SLIGHT CHANCE
OF SHOWERS. LOWS IN THE MID 40S. HIGHS IN THE LOWER 60S. MINIMUM
RH 42 PERCENT. SOUTH WINDS 5 TO 10 MPH. 

$$

VAZ079>081-087>089-092-192130-
BRUNSWICK-DINWIDDIE-PRINCE GEORGE-GREENSVILLE-SUSSEX-SURRY-
SOUTHAMPTON-
INCLUDING THE CITIES OF...LAWRENCEVILLE...PETERSBURG...HOPEWELL...
EMPORIA...WAKEFIELD...FRANKLIN
456 AM EDT THU MAR 19 2009

                      TODAY        TONIGHT      FRI          

CLOUD COVER           PCLDY        CLOUDY       PCLDY        
PRECIP TYPE           SHOWERS      SHOWERS      NONE         
CHANCE PRECIP (%)     40           60           10           
MAX/MIN TEMP          70           38           53           
MAX/MIN RH (%)        37           91           32           
WND20FT2MIN/EARLY(MPH)SW 3-7       N 4-8        N 6-10       
WND20FT2MIN/LATE(MPH) W 5-9        N 4-8        N 7-11       
PRECIP AMOUNT         0.00         0.06         0.00         
PRECIP DURATION       0            2            0            
MAX MIXING HGT(FT-AGL)5200                      6300         
TRANSPORT WIND (MPH)  NW 12                     N 14         
VENT RATE (FT-MPH)    62400                     88200        
DISPERSION (EVENING)               POOR                      
ADI EARLY             41 GEN GOOD  48 GEN GOOD  39 FAIR      
ADI LATE              58 GEN GOOD  13 GEN POOR  67 GOOD      
MAX LVORI EARLY       4            4            4            
MAX LVORI LATE        1            6            1            
LAL                   1            1            1            
HAINES INDEX          5            4            5            

REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.

.FORECAST FOR DAYS 3 THROUGH 7...
.FRIDAY NIGHT...MOSTLY CLEAR. LOWS IN THE UPPER 20S. NORTHEAST
WINDS 5 TO 10 MPH. 
.SATURDAY...SUNNY IN THE MORNING...THEN BECOMING MOSTLY CLEAR.
HIGHS IN THE MID 50S. MINIMUM RH 30 PERCENT UNTIL EARLY EVENING.
NORTH WINDS AROUND 5 MPH...BECOMING EAST AROUND 5 MPH IN THE
AFTERNOON AND EVENING. 
.SUNDAY AND SUNDAY NIGHT...MOSTLY CLEAR. LOWS IN THE LOWER 30S.
HIGHS IN THE LOWER 60S. MINIMUM RH 31 PERCENT. SOUTH WINDS AROUND
5 MPH. 
.MONDAY AND MONDAY NIGHT...PARTLY CLOUDY. LOWS IN THE UPPER 30S.
HIGHS IN THE MID 60S. MINIMUM RH 38 PERCENT. SOUTHEAST WINDS
AROUND 5 MPH. 
.TUESDAY AND TUESDAY NIGHT...PARTLY CLOUDY. LOWS IN THE MID 40S.
HIGHS IN THE UPPER 60S. MINIMUM RH 39 PERCENT. SOUTH WINDS AROUND
5 MPH. 
.WEDNESDAY AND WEDNESDAY NIGHT...PARTLY CLOUDY. A SLIGHT CHANCE
OF SHOWERS. LOWS IN THE MID 40S. HIGHS IN THE UPPER 60S. MINIMUM
RH 39 PERCENT. SOUTH WINDS 5 TO 10 MPH. 

$$

VAZ091-094-192130-
YORK-NEWPORT NEWS/HAMPTON-
INCLUDING THE CITIES OF...POQUOSON...NEWPORT NEWS...HAMPTON
456 AM EDT THU MAR 19 2009

                      TODAY        TONIGHT      FRI          

CLOUD COVER           PCLDY        CLOUDY       PCLDY        
PRECIP TYPE           SHOWERS      SHOWERS      NONE         
CHANCE PRECIP (%)     40           60           10           
MAX/MIN TEMP          67           39           49           
MAX/MIN RH (%)        39           93           45           
WND20FT2MIN/EARLY(MPH)SW 7-11      N 6-10 G16   N 8-12 G18   
WND20FT2MIN/LATE(MPH) W 6-10 G16   N 6-10 G15   N 9-13 G19   
PRECIP AMOUNT         0.00         0.08         0.00         
PRECIP DURATION       0            2            0            
MAX MIXING HGT(FT-AGL)4700                      5300         
TRANSPORT WIND (MPH)  N 13                      N 18         
VENT RATE (FT-MPH)    61100                     95400        
DISPERSION (EVENING)               POOR                      
ADI EARLY             39 FAIR      53 GEN GOOD  34 FAIR      
ADI LATE              49 GEN GOOD  10 POOR      45 GEN GOOD  
MAX LVORI EARLY       4            4            4            
MAX LVORI LATE        1            6            2            
LAL                   1            1            1            
HAINES INDEX          5            3            5            

REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.

.FORECAST FOR DAYS 3 THROUGH 7...
.FRIDAY NIGHT...MOSTLY CLEAR. LOWS IN THE LOWER 30S. NORTHEAST
WINDS 5 TO 10 MPH. 
.SATURDAY...SUNNY IN THE MORNING...THEN BECOMING MOSTLY CLEAR.
HIGHS IN THE LOWER 50S. MINIMUM RH 37 PERCENT UNTIL EARLY
EVENING. NORTHEAST WINDS 5 TO 10 MPH...BECOMING EAST IN THE
AFTERNOON AND EVENING. 
.SUNDAY AND SUNDAY NIGHT...MOSTLY CLEAR. LOWS IN THE LOWER 30S.
HIGHS AROUND 60. MINIMUM RH 33 PERCENT. SOUTH WINDS AROUND 5 MPH.
.MONDAY AND MONDAY NIGHT...PARTLY CLOUDY. LOWS IN THE UPPER 30S.
HIGHS AROUND 60. MINIMUM RH 42 PERCENT. SOUTHEAST WINDS AROUND
5 MPH. 
.TUESDAY AND TUESDAY NIGHT...PARTLY CLOUDY. LOWS IN THE MID 40S.
HIGHS IN THE MID 60S. MINIMUM RH 42 PERCENT. SOUTHEAST WINDS 5 TO
10 MPH. 
.WEDNESDAY AND WEDNESDAY NIGHT...PARTLY CLOUDY. A SLIGHT CHANCE
OF SHOWERS. LOWS IN THE MID 40S. HIGHS IN THE MID 60S. MINIMUM RH
44 PERCENT. SOUTH WINDS 5 TO 10 MPH. 

$$

VAZ093-096-097-192130-
ISLE OF WIGHT-SUFFOLK-CHESAPEAKE-
456 AM EDT THU MAR 19 2009

                      TODAY        TONIGHT      FRI          

CLOUD COVER           PCLDY        CLOUDY       PCLDY        
PRECIP TYPE           SHOWERS      SHOWERS      RAIN         
CHANCE PRECIP (%)     30           70           20           
MAX/MIN TEMP          70           39           50           
MAX/MIN RH (%)        37           93           42           
WND20FT2MIN/EARLY(MPH)SW 5-9       N 7-11       N 8-12 G17   
WND20FT2MIN/LATE(MPH) W 7-11       NE 6-10      N 9-13 G19   
PRECIP AMOUNT         0.00         0.23         0.00         
PRECIP DURATION       0            3            0            
MAX MIXING HGT(FT-AGL)5200                      5300         
TRANSPORT WIND (MPH)  W 12                      N 16         
VENT RATE (FT-MPH)    62400                     84800        
DISPERSION (EVENING)               POOR                      
ADI EARLY             45 GEN GOOD  65 GOOD      36 FAIR      
ADI LATE              66 GOOD      13 GEN POOR  46 GEN GOOD  
MAX LVORI EARLY       5            3            5            
MAX LVORI LATE        1            6            1            
LAL                   1            1            1            
HAINES INDEX          5            4            4            

REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.

.FORECAST FOR DAYS 3 THROUGH 7...
.FRIDAY NIGHT...MOSTLY CLEAR. LOWS IN THE LOWER 30S. NORTHEAST
WINDS 10 TO 15 MPH. 
.SATURDAY...SUNNY IN THE MORNING...THEN BECOMING MOSTLY CLEAR.
HIGHS IN THE LOWER 50S. MINIMUM RH 34 PERCENT UNTIL EARLY
EVENING. NORTHEAST WINDS 5 TO 10 MPH. 
.SUNDAY AND SUNDAY NIGHT...MOSTLY CLEAR. LOWS IN THE LOWER 30S.
HIGHS IN THE LOWER 60S. MINIMUM RH 31 PERCENT. SOUTH WINDS AROUND
5 MPH. 
.MONDAY AND MONDAY NIGHT...MOSTLY CLEAR. LOWS IN THE UPPER 30S.
HIGHS IN THE LOWER 60S. MINIMUM RH 39 PERCENT. SOUTHEAST WINDS
AROUND 5 MPH. 
.TUESDAY AND TUESDAY NIGHT...PARTLY CLOUDY. LOWS IN THE MID 40S.
HIGHS IN THE UPPER 60S. MINIMUM RH 39 PERCENT. SOUTHEAST WINDS
5 TO 10 MPH. 
.WEDNESDAY AND WEDNESDAY NIGHT...PARTLY CLOUDY. A SLIGHT CHANCE
OF SHOWERS. LOWS IN THE MID 40S. HIGHS IN THE UPPER 60S. MINIMUM
RH 41 PERCENT. SOUTH WINDS 5 TO 10 MPH. 

$$

VAZ095-098-192130-
NORFOLK/PORTSMOUTH-VIRGINIA BEACH-
456 AM EDT THU MAR 19 2009

                      TODAY        TONIGHT      FRI          

CLOUD COVER           PCLDY        CLOUDY       PCLDY        
PRECIP TYPE           SHOWERS      SHOWERS      RAIN         
CHANCE PRECIP (%)     30           70           30           
MAX/MIN TEMP          69           41           47           
MAX/MIN RH (%)        38           93           55           
WND20FT2MIN/EARLY(MPH)SW 8-12      N 11-15 G20  N 11-15 G22  
WND20FT2MIN/LATE(MPH) SW 9-13      NE 10-14 G20 N 13-17 G24  
PRECIP AMOUNT         0.00         0.35         0.00         
PRECIP DURATION       0            3            0            
MAX MIXING HGT(FT-AGL)4200                      4100         
TRANSPORT WIND (MPH)  SW 16                     NE 20        
VENT RATE (FT-MPH)    67200                     82000        
DISPERSION (EVENING)               GOOD                      
ADI EARLY             23 FAIR      51 GEN GOOD  32 FAIR      
ADI LATE              40 FAIR      13 GEN POOR  41 GEN GOOD  
MAX LVORI EARLY       4            4            5            
MAX LVORI LATE        2            5            3            
LAL                   1            1            1            
HAINES INDEX          5            3            5            

REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.

.FORECAST FOR DAYS 3 THROUGH 7...
.FRIDAY NIGHT...MOSTLY CLEAR. LOWS IN THE MID 30S. NORTHEAST
WINDS 15 TO 20 MPH. 
.SATURDAY...MOSTLY CLEAR. HIGHS IN THE UPPER 40S. MINIMUM RH
42 PERCENT UNTIL EARLY EVENING. NORTHEAST WINDS 10 TO 15 MPH. 
.SUNDAY AND SUNDAY NIGHT...MOSTLY CLEAR. LOWS IN THE MID 30S.
HIGHS IN THE UPPER 50S. MINIMUM RH 35 PERCENT. SOUTH WINDS 5 TO
10 MPH. 
.MONDAY AND MONDAY NIGHT...MOSTLY CLEAR. LOWS IN THE UPPER 30S.
HIGHS IN THE UPPER 50S. MINIMUM RH 44 PERCENT. EAST WINDS 5 TO
10 MPH. 
.TUESDAY AND TUESDAY NIGHT...PARTLY CLOUDY. LOWS IN THE MID 40S.
HIGHS IN THE MID 60S. MINIMUM RH 42 PERCENT. SOUTHEAST WINDS 5 TO
10 MPH. 
.WEDNESDAY AND WEDNESDAY NIGHT...PARTLY CLOUDY. A SLIGHT CHANCE
OF SHOWERS. LOWS IN THE MID 40S. HIGHS IN THE MID 60S. MINIMUM RH
46 PERCENT. SOUTH WINDS 5 TO 10 MPH. 

$$

VAZ099-100-192130-
ACCOMACK-NORTHAMPTON VA-
INCLUDING THE CITIES OF...CHINCOTEAGUE...WALLOPS ISLAND...MELFA...
EASTVILLE
456 AM EDT THU MAR 19 2009

                      TODAY        TONIGHT      FRI          

CLOUD COVER           PCLDY        CLOUDY       PCLDY        
PRECIP TYPE           SHOWERS      SHOWERS      RAIN         
CHANCE PRECIP (%)     50           60           20           
MAX/MIN TEMP          63           37           46           
MAX/MIN RH (%)        47           95           47           
WND20FT2MIN/EARLY(MPH)SW 7-11      N 9-13 G19   N 10-14 G21  
WND20FT2MIN/LATE(MPH) W 8-12 G17   NE 8-12 G18  N 11-15 G22  
PRECIP AMOUNT         0.02         0.09         0.00         
PRECIP DURATION       2            2            0            
MAX MIXING HGT(FT-AGL)2300                      4500         
TRANSPORT WIND (MPH)  W 10                      N 16         
VENT RATE (FT-MPH)    23000                     72000        
DISPERSION (EVENING)               FAIR                      
ADI EARLY             17 GEN POOR  30 FAIR      30 FAIR      
ADI LATE              33 FAIR      10 POOR      43 GEN GOOD  
MAX LVORI EARLY       4            4            5            
MAX LVORI LATE        2            6            2            
LAL                   1            1            1            
HAINES INDEX          5            4            4            

REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.

.FORECAST FOR DAYS 3 THROUGH 7...
.FRIDAY NIGHT...MOSTLY CLEAR. LOWS IN THE LOWER 30S. NORTHEAST
WINDS 10 TO 15 MPH. 
.SATURDAY...SUNNY IN THE MORNING...THEN BECOMING MOSTLY CLEAR.
HIGHS IN THE UPPER 40S. MINIMUM RH 41 PERCENT UNTIL EARLY
EVENING. NORTHEAST WINDS 5 TO 10 MPH...BECOMING EAST IN THE
AFTERNOON AND EVENING. 
.SUNDAY AND SUNDAY NIGHT...MOSTLY CLEAR. LOWS IN THE LOWER 30S.
HIGHS IN THE MID 50S. MINIMUM RH 38 PERCENT. SOUTH WINDS 5 TO
10 MPH. 
.MONDAY THROUGH TUESDAY NIGHT...PARTLY CLOUDY. LOWS IN THE LOWER
40S. HIGHS IN THE UPPER 50S. MINIMUM RH 43 PERCENT. SOUTHEAST
WINDS 5 TO 10 MPH. 
.WEDNESDAY AND WEDNESDAY NIGHT...PARTLY CLOUDY. A SLIGHT CHANCE
OF SHOWERS. LOWS IN THE MID 40S. HIGHS IN THE LOWER 60S. MINIMUM
RH 45 PERCENT. SOUTH WINDS 5 TO 10 MPH. 

$$

.OUTLOOK 8 TO 14 DAYS...
TEMPERATURES BELOW NORMAL.  PRECIPITATION NEAR NORMAL.

$$


...............FIRE WEATHER CATEGORY REFERENCE GUIDE..............


VENTILATION RATE CATEGORIES (DAYTIME)
-------------------------------------

0 - 33499........LOW LEVEL INVERSION/STAGNANT AIR THE ENTIRE DAY
33500 - 44999....INVERSION UNTIL EARLY AFTN/VERY LGT TRANSPORT WND
45000 - 59999....INVERSION UNTIL LATE AM/LGT TRANSPORT WND
60000 - 111999...LITTLE OR NO INVERSION/MODERATE TRANSPORT WND
112000 OR MORE...NO INVERSION/STRONG AND GUSTY TRANSPORT WND


DISPERSION CATEGORIES (EVENING -- 6 PM TO MIDNIGHT)
---------------------------------------------------

STAGNANT....SURFACE WINDS NEAR CALM
VERY POOR...SURFACE WINDS 2 TO 4 MPH
POOR........SURFACE WINDS 5 TO 8 MPH
FAIR........SURFACE WINDS 9 TO 12 MPH
GOOD........SURFACE WINDS GREATER THAN 12 MPH


LIGHTNING ACTIVITY LEVEL (AVERAGE STRIKES PER MINUTE(S)
-------------------------------------------------------

1...............0/MINUTE.....0/5 MINUTES.......0/15 MINUTES
2...............1/MINUTE.....1-5/5 MINUTES.....1-8/15 MINUTES
3...............1-2/MINUTE...6-10/5 MINUTES....9-15/15 MINUTES
4...............2-3/MINUTE...11-15/5 MINUTES...16-25/15 MINUTES
5...............3/MINUTE.....15/5 MINUTES......25/15 MINUTES
6 (DRY TSTMS)...1-2/MINUTE...6-10/5 MINUTES....9-15/15 MINUTES


ATMOSPHERIC DISPERSION INDEX (ADI)
----------------------------------

> 100   VERY GOOD (BUT MAY INDIRECTLY INDICATE HAZARDOUS CONDITIONS)

61-100  GOOD (TYPICAL CASE BURNING WEATHER VALUES ARE IN THIS RANGE)

41-60   GENERALLY GOOD (CLIMATOLOGICAL AFTERNOON VALUES IN MOST INLAND
        FORESTED AREAS OF THE U.S. FALL IN THIS RANGE)

21-40   FAIR (STAGNATION MAY BE INDICATED IF ACCOMPANIED BY PERSISTENT
        LOW WINDSPEEDS)

13-20   GENERALLY POOR (STAGNATION IF PERSISTENT, ALTHOUGH BETTER THAN
        AVERAGE FOR A NIGHT VALUE)

7-12    POOR (STAGNANT AT DAY, BUT NEAR OR ABOVE AVERAGE AT NIGHT)

1-6     VERY POOR (VERY FREQUENT AT NIGHT; REPRESENTS THE MAJORITY OF
        NIGHTS IN MANY LOCATIONS)


LOW VISIBILITY OCCURRENCE RISK INDEX (LVORI)
--------------------------------------------

 1      LOWEST PROPORTION OF ACCIDENTS WITH SMOKE AND/OR FOG REPORTED
        (130 OF 127,604 ACCIDENTS, OR JUST OVER 0.0010 PERCENT)

 2      PHYSICAL OR STATISTICAL REASONS FOR NOT INCLUDING
        IN CAT 1, BUT PROPORTION OF ACCIDENTS NOT SIGNIFICANTLY HIGHER

 3      HIGHER PROPORTION OF ACCIDENTS THAN CAT 1, BY ABOUT 30-50 PCT,
        MARGINAL SIGNIFICANCE (1-5 PCT)

 4      SIGNIFICANTLY HIGHER THAN CAT 1, BY A FACTOR OF 2

 5      SIGNIFICANTLY HIGHER THAN CAT 1, BY A FACTOR OF 3 TO 10

 6      SIGNIFICANTLY HIGHER THAN CAT 1, BY A FACTOR OF 10 TO 20

 7      SIGNIFICANTLY HIGHER THAN CAT 1, BY A FACTOR OF 20 TO 40

 8      SIGNIFICANTLY HIGHER THAN CATEGORY 1, BY A FACTOR OF 40 TO 75

 9      SIGNIFICANTLY HIGHER THAN CATEGORY 1, BY A FACTOR OF 75 TO 125

 10     SIGNIFICANTLY HIGHER THAN CATEGORY 1, BY A FACTOR OF 150

$$

BROWN






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