
169 
FNUS51 KAKQ 020924
FWFAKQ

FIRE WEATHER PLANNING FORECAST FOR CEN/ERN VA...NE NC...MD ERN SHORE
NATIONAL WEATHER SERVICE WAKEFIELD VA
524 AM EDT THU APR 2 2009

.DISCUSSION...
DEVELOPING LOW PRESSURE WILL LIFT A WARM FRONT THROUGH THE AREA LATE
TONIGHT AND EARLY FRIDAY MORNING...WITH A COLD FRONT MOVING
THROUGH FRIDAY AFTERNOON. HIGH PRESSURE RETURNS FOR THE WEEKEND.

MDZ021>023-022100-
DORCHESTER-WICOMICO-SOMERSET-
INCLUDING THE CITIES OF...CAMBRIDGE...SALISBURY...CRISFIELD...
PRINCESS ANNE
524 AM EDT THU APR 2 2009

                      TODAY        TONIGHT      FRI          

CLOUD COVER           MCLDY        CLOUDY       MCLDY        
PRECIP TYPE           DRIZZLE      RAIN         TSTMS        
CHANCE PRECIP (%)     10           60           60           
MAX/MIN TEMP          64           52           66           
MAX/MIN RH (%)        65           100          55           
WND20FT2MIN/EARLY(MPH)LGT/VAR      E 5-9        SE 6-10 G16  
WND20FT2MIN/LATE(MPH) E 5-9        E 6-10       S 13-17      
PRECIP AMOUNT         0.00         0.04         0.11         
PRECIP DURATION       0            2            2            
MAX MIXING HGT(FT-AGL)3400                      1400         
TRANSPORT WIND (MPH)  SE  9                     SW 30        
VENT RATE (FT-MPH)    30600                     42000        
DISPERSION (EVENING)               POOR                      
ADI EARLY             7 POOR       12 POOR      27 FAIR      
ADI LATE              33 FAIR      14 GEN POOR  37 FAIR      
MAX LVORI EARLY       7            6            5            
MAX LVORI LATE        4            5            3            
LAL                   1            1            2            
HAINES INDEX          4            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...PARTLY CLOUDY. LOWS IN THE UPPER 40S. WEST WINDS
15 TO 20 MPH. 
.SATURDAY...MOSTLY CLEAR. HIGHS IN THE LOWER 60S. MINIMUM RH
39 PERCENT UNTIL EARLY EVENING. WEST WINDS 15 TO 20 MPH. 
.SUNDAY AND SUNDAY NIGHT...PARTLY CLOUDY. A CHANCE OF SHOWERS.
LOWS AROUND 40. HIGHS IN THE MID 60S. MINIMUM RH 45 PERCENT.
SOUTH WINDS 10 TO 15 MPH. 
.MONDAY AND MONDAY NIGHT...MOSTLY CLOUDY WITH A CHANCE OF SHOWERS
AND THUNDERSTORMS. LOWS IN THE UPPER 40S. HIGHS AROUND 60.
MINIMUM RH 64 PERCENT. WEST WINDS 15 TO 20 MPH. 
.TUESDAY AND TUESDAY NIGHT...MOSTLY CLOUDY. LOWS IN THE LOWER
40S. HIGHS IN THE LOWER 50S. MINIMUM RH 50 PERCENT. WEST WINDS
15 TO 20 MPH. 
.WEDNESDAY AND WEDNESDAY NIGHT...PARTLY CLOUDY. LOWS IN THE MID
30S. HIGHS IN THE MID 50S. MINIMUM RH 46 PERCENT. WEST WINDS
10 TO 15 MPH. 

$$

MDZ024-022100-
INLAND WORCESTER-
INCLUDING THE CITIES OF...SNOW HILL
524 AM EDT THU APR 2 2009

                      TODAY        TONIGHT      FRI          

CLOUD COVER           MCLDY        CLOUDY       MCLDY        
PRECIP TYPE           DRIZZLE      RAIN         TSTMS        
CHANCE PRECIP (%)     10           60           60           
MAX/MIN TEMP          64           51           67           
MAX/MIN RH (%)        65           100          54           
WND20FT2MIN/EARLY(MPH)LGT/VAR      E 6-10       SE 7-11 G18  
WND20FT2MIN/LATE(MPH) SE 6-10      E 7-11       S 14-18 G24  
PRECIP AMOUNT         0.00         0.04         0.07         
PRECIP DURATION       0            2            2            
MAX MIXING HGT(FT-AGL)3100                      1000         
TRANSPORT WIND (MPH)  SE 12                     SW 28        
VENT RATE (FT-MPH)    37200                     28000        
DISPERSION (EVENING)               POOR                      
ADI EARLY             14 GEN POOR  18 GEN POOR  27 FAIR      
ADI LATE              35 FAIR      12 POOR      41 GEN GOOD  
MAX LVORI EARLY       7            7            5            
MAX LVORI LATE        3            6            3            
LAL                   1            1            2            
HAINES INDEX          3            4            3            

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

.FORECAST FOR DAYS 3 THROUGH 7...
.FRIDAY NIGHT...PARTLY CLOUDY. LOWS IN THE UPPER 40S. WEST WINDS
15 TO 20 MPH. 
.SATURDAY...MOSTLY CLEAR. HIGHS IN THE LOWER 60S. MINIMUM RH
38 PERCENT UNTIL EARLY EVENING. WEST WINDS 15 TO 20 MPH. 
.SUNDAY AND SUNDAY NIGHT...PARTLY CLOUDY. A CHANCE OF SHOWERS.
LOWS AROUND 40. HIGHS IN THE LOWER 60S. MINIMUM RH 46 PERCENT.
SOUTH WINDS 5 TO 10 MPH. 
.MONDAY AND MONDAY NIGHT...MOSTLY CLOUDY WITH A CHANCE OF SHOWERS
AND THUNDERSTORMS. LOWS IN THE MID 40S. HIGHS IN THE UPPER 50S.
MINIMUM RH 66 PERCENT. SOUTHWEST WINDS 10 TO 15 MPH. 
.TUESDAY AND TUESDAY NIGHT...MOSTLY CLOUDY. LOWS IN THE LOWER
40S. HIGHS IN THE LOWER 50S. MINIMUM RH 53 PERCENT. WEST WINDS
10 TO 15 MPH. 
.WEDNESDAY AND WEDNESDAY NIGHT...PARTLY CLOUDY. LOWS IN THE MID
30S. HIGHS IN THE LOWER 50S. MINIMUM RH 47 PERCENT. WEST WINDS
10 TO 15 MPH. 

$$

MDZ025-022100-
MARYLAND BEACHES-
INCLUDING THE CITIES OF...OCEAN CITY
524 AM EDT THU APR 2 2009

                      TODAY        TONIGHT      FRI          

CLOUD COVER           MCLDY        CLOUDY       MCLDY        
PRECIP TYPE           DRIZZLE      RAIN         TSTMS        
CHANCE PRECIP (%)     10           60           60           
MAX/MIN TEMP          58           51           61           
MAX/MIN RH (%)        68           100          60           
WND20FT2MIN/EARLY(MPH)LGT/VAR      E 8-12       SE 9-13 G20  
WND20FT2MIN/LATE(MPH) E 7-11       E 10-14      S 15-19 G25  
PRECIP AMOUNT         0.00         0.04         0.05         
PRECIP DURATION       0            2            2            
MAX MIXING HGT(FT-AGL)1100                      300          
TRANSPORT WIND (MPH)  SE 12                     S 31         
VENT RATE (FT-MPH)    13200                     9300         
DISPERSION (EVENING)               FAIR                      
ADI EARLY             11 POOR      12 POOR      26 FAIR      
ADI LATE              15 GEN POOR  12 POOR      34 FAIR      
MAX LVORI EARLY       6            7            4            
MAX LVORI LATE        5            5            3            
LAL                   1            1            2            
HAINES INDEX          3            4            3            

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

.FORECAST FOR DAYS 3 THROUGH 7...
.FRIDAY NIGHT...PARTLY CLOUDY. LOWS IN THE UPPER 40S. WEST WINDS
15 TO 20 MPH. 
.SATURDAY...BREEZY. MOSTLY CLEAR. HIGHS IN THE LOWER 60S. MINIMUM
RH 38 PERCENT UNTIL EARLY EVENING. WEST WINDS 15 TO 25 MPH. 
.SUNDAY AND SUNDAY NIGHT...PARTLY CLOUDY. A CHANCE OF SHOWERS.
LOWS AROUND 40. HIGHS IN THE UPPER 50S. MINIMUM RH 52 PERCENT.
SOUTH WINDS 10 TO 15 MPH. 
.MONDAY AND MONDAY NIGHT...MOSTLY CLOUDY WITH A CHANCE OF SHOWERS
AND THUNDERSTORMS. LOWS IN THE MID 40S. HIGHS IN THE MID 50S.
MINIMUM RH 75 PERCENT. SOUTHWEST WINDS 15 TO 20 MPH. 
.TUESDAY AND TUESDAY NIGHT...MOSTLY CLOUDY. LOWS IN THE LOWER
40S. HIGHS AROUND 50. MINIMUM RH 60 PERCENT. WEST WINDS 15 TO
20 MPH. 
.WEDNESDAY AND WEDNESDAY NIGHT...PARTLY CLOUDY. LOWS IN THE MID
30S. HIGHS IN THE LOWER 50S. MINIMUM RH 52 PERCENT. WEST WINDS
10 TO 15 MPH. 

$$

NCZ012>014-030-022100-
NORTHAMPTON NC-HERTFORD-GATES-BERTIE-
INCLUDING THE CITIES OF...MARGARETTSVILLE...AHOSKIE
524 AM EDT THU APR 2 2009

                      TODAY        TONIGHT      FRI          

CLOUD COVER           CLOUDY       CLOUDY       PCLDY        
PRECIP TYPE           RAIN         TSTMS        TSTMS        
CHANCE PRECIP (%)     30           60           50           
MAX/MIN TEMP          65           56           78           
MAX/MIN RH (%)        75           100          43           
WND20FT2MIN/EARLY(MPH)LGT/VAR      E 3-7        S 7-11 G21   
WND20FT2MIN/LATE(MPH) E 4-8        E 3-7        SW 15-19 G24 
PRECIP AMOUNT         0.00         0.15         0.09         
PRECIP DURATION       0            2            2            
MAX MIXING HGT(FT-AGL)2500                      7800         
TRANSPORT WIND (MPH)  SE 20                     W 43         
VENT RATE (FT-MPH)    50000                     335400       
DISPERSION (EVENING)               VERY POOR                 
ADI EARLY             25 FAIR      17 GEN POOR  55 GEN GOOD  
ADI LATE              39 FAIR      12 POOR      120 VERY GOOD
MAX LVORI EARLY       6            6            5            
MAX LVORI LATE        4            7            1            
LAL                   1            2            2            
HAINES INDEX          3            3            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 AROUND 50. WEST WINDS 10 TO
15 MPH. 
.SATURDAY...MOSTLY CLEAR. HIGHS IN THE LOWER 70S. MINIMUM RH
35 PERCENT UNTIL EARLY EVENING. WEST WINDS 10 TO 15 MPH. 
.SUNDAY AND SUNDAY NIGHT...PARTLY CLOUDY. A CHANCE OF SHOWERS.
LOWS IN THE MID 40S. HIGHS IN THE LOWER 70S. MINIMUM RH
35 PERCENT. SOUTH WINDS 5 TO 10 MPH. 
.MONDAY AND MONDAY NIGHT...MOSTLY CLOUDY WITH A CHANCE OF SHOWERS
AND THUNDERSTORMS. LOWS IN THE LOWER 50S. HIGHS IN THE UPPER 60S.
MINIMUM RH 48 PERCENT. WEST WINDS 10 TO 15 MPH. 
.TUESDAY AND TUESDAY NIGHT...MOSTLY CLOUDY. COOLER. LOWS IN THE
LOWER 40S. HIGHS IN THE UPPER 50S. MINIMUM RH 41 PERCENT. WEST
WINDS 10 TO 15 MPH. 
.WEDNESDAY AND WEDNESDAY NIGHT...PARTLY CLOUDY. LOWS IN THE MID
30S. HIGHS IN THE LOWER 60S. MINIMUM RH 38 PERCENT. WEST WINDS
10 TO 15 MPH. 

$$

NCZ015>017-031-032-022100-
PASQUOTANK-CAMDEN-INLAND CURRITUCK-CHOWAN-PERQUIMANS-
INCLUDING THE CITIES OF...ELIZABETH CITY...EDENTON
524 AM EDT THU APR 2 2009

                      TODAY        TONIGHT      FRI          

CLOUD COVER           MCLDY        CLOUDY       PCLDY        
PRECIP TYPE           RAIN         TSTMS        TSTMS        
CHANCE PRECIP (%)     30           60           50           
MAX/MIN TEMP          64           57           79           
MAX/MIN RH (%)        75           100          46           
WND20FT2MIN/EARLY(MPH)E 3-7        E 5-9        S 8-12 G21   
WND20FT2MIN/LATE(MPH) E 6-10       E 4-8        SW 16-20     
PRECIP AMOUNT         0.00         0.11         0.08         
PRECIP DURATION       0            2            2            
MAX MIXING HGT(FT-AGL)2000                      7800         
TRANSPORT WIND (MPH)  E 17                      SW 40        
VENT RATE (FT-MPH)    34000                     312000       
DISPERSION (EVENING)               POOR                      
ADI EARLY             29 FAIR      16 GEN POOR  44 GEN GOOD  
ADI LATE              31 FAIR      11 POOR      119 VERY GOOD
MAX LVORI EARLY       6            6            5            
MAX LVORI LATE        4            6            2            
LAL                   1            2            2            
HAINES INDEX          4            3            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 50S. WEST WINDS
15 TO 20 MPH. 
.SATURDAY...MOSTLY CLEAR. HIGHS IN THE LOWER 70S. MINIMUM RH
37 PERCENT UNTIL EARLY EVENING. WEST WINDS 15 TO 20 MPH. 
.SUNDAY AND SUNDAY NIGHT...PARTLY CLOUDY. A CHANCE OF SHOWERS.
LOWS IN THE UPPER 40S. HIGHS IN THE LOWER 70S. MINIMUM RH
44 PERCENT. SOUTH WINDS 10 TO 15 MPH. 
.MONDAY AND MONDAY NIGHT...MOSTLY CLOUDY WITH A CHANCE OF SHOWERS
AND THUNDERSTORMS. LOWS IN THE LOWER 50S. HIGHS IN THE UPPER 60S.
MINIMUM RH 53 PERCENT. SOUTHWEST WINDS 15 TO 20 MPH. 
.TUESDAY AND TUESDAY NIGHT...MOSTLY CLOUDY. LOWS IN THE MID 40S.
HIGHS IN THE UPPER 50S. MINIMUM RH 45 PERCENT. WEST WINDS 15 TO
20 MPH. 
.WEDNESDAY AND WEDNESDAY NIGHT...PARTLY CLOUDY. LOWS AROUND 40.
HIGHS IN THE LOWER 60S. MINIMUM RH 42 PERCENT. WEST WINDS 15 TO
20 MPH. 

$$

NCZ102-022100-
OUTER BANKS CURRITUCK-
INCLUDING THE CITIES OF...COROLLA
524 AM EDT THU APR 2 2009

                      TODAY        TONIGHT      FRI          

CLOUD COVER           MCLDY        CLOUDY       MCLDY        
PRECIP TYPE           RAIN         TSTMS        TSTMS        
CHANCE PRECIP (%)     30           60           50           
MAX/MIN TEMP          60           56           70           
MAX/MIN RH (%)        76           100          56           
WND20FT2MIN/EARLY(MPH)E 6-10       NE 9-13      S 10-14 G22  
WND20FT2MIN/LATE(MPH) E 7-11       E 6-10       SW 17-21     
PRECIP AMOUNT         0.00         0.09         0.10         
PRECIP DURATION       0            2            2            
MAX MIXING HGT(FT-AGL)300                       600          
TRANSPORT WIND (MPH)  E 10                      S 29         
VENT RATE (FT-MPH)    3000                      17400        
DISPERSION (EVENING)               FAIR                      
ADI EARLY             11 POOR      11 POOR      32 FAIR      
ADI LATE              14 GEN POOR  12 POOR      38 FAIR      
MAX LVORI EARLY       6            8            3            
MAX LVORI LATE        4            4            2            
LAL                   1            2            2            
HAINES INDEX          4            3            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 50S. WEST WINDS
15 TO 20 MPH. 
.SATURDAY...MOSTLY CLEAR. HIGHS IN THE UPPER 60S. MINIMUM RH
41 PERCENT UNTIL EARLY EVENING. WEST WINDS 10 TO 15 MPH. 
.SUNDAY AND SUNDAY NIGHT...PARTLY CLOUDY. A CHANCE OF SHOWERS.
LOWS IN THE UPPER 40S. HIGHS IN THE UPPER 60S. MINIMUM RH
50 PERCENT. SOUTH WINDS 10 TO 15 MPH. 
.MONDAY AND MONDAY NIGHT...MOSTLY CLOUDY WITH A CHANCE OF SHOWERS
AND THUNDERSTORMS. LOWS IN THE LOWER 50S. HIGHS IN THE MID 60S.
MINIMUM RH 62 PERCENT. SOUTHWEST WINDS 15 TO 20 MPH. 
.TUESDAY AND TUESDAY NIGHT...MOSTLY CLOUDY. LOWS IN THE MID 40S.
HIGHS IN THE UPPER 50S. MINIMUM RH 50 PERCENT. WEST WINDS 15 TO
20 MPH. 
.WEDNESDAY AND WEDNESDAY NIGHT...PARTLY CLOUDY. LOWS IN THE LOWER
40S. HIGHS IN THE UPPER 50S. MINIMUM RH 48 PERCENT. WEST WINDS
10 TO 15 MPH. 

$$

VAZ048-049-061-062-068-069-022100-
FLUVANNA-LOUISA-CUMBERLAND-GOOCHLAND-AMELIA-POWHATAN-
INCLUDING THE CITIES OF...LOUISA...GOOCHLAND
524 AM EDT THU APR 2 2009

                      TODAY        TONIGHT      FRI          

CLOUD COVER           MCLDY        CLOUDY       PCLDY        
PRECIP TYPE           RAIN         SHOWERS      TSTMS        
CHANCE PRECIP (%)     20           70           50           
MAX/MIN TEMP          62           53           73           
MAX/MIN RH (%)        74           99           41           
WND20FT2MIN/EARLY(MPH)LGT/VAR      LGT/VAR      SE 5-9 G17   
WND20FT2MIN/LATE(MPH) LGT/VAR      E 3-7        SW 14-18 G23 
PRECIP AMOUNT         0.00         0.17         0.13         
PRECIP DURATION       0            3            2            
MAX MIXING HGT(FT-AGL)2500                      7200         
TRANSPORT WIND (MPH)  E 10                      W 38         
VENT RATE (FT-MPH)    25000                     273600       
DISPERSION (EVENING)               VERY POOR                 
ADI EARLY             7 POOR       22 FAIR      35 FAIR      
ADI LATE              32 FAIR      14 GEN POOR  120 VERY GOOD
MAX LVORI EARLY       8            5            5            
MAX LVORI LATE        5            6            2            
LAL                   1            1            2            
HAINES INDEX          5            3            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 40S. WEST WINDS
15 TO 20 MPH. 
.SATURDAY...MOSTLY CLEAR. HIGHS IN THE UPPER 60S. MINIMUM RH
30 PERCENT UNTIL EARLY EVENING. WEST WINDS 10 TO 15 MPH. 
.SUNDAY AND SUNDAY NIGHT...PARTLY CLOUDY. A CHANCE OF SHOWERS.
LOWS IN THE UPPER 30S. HIGHS AROUND 70. MINIMUM RH 33 PERCENT.
SOUTH WINDS 5 TO 10 MPH. 
.MONDAY AND MONDAY NIGHT...CLOUDY WITH A CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE UPPER 40S. HIGHS IN THE MID 60S.
MINIMUM RH 49 PERCENT. WEST WINDS 10 TO 15 MPH. 
.TUESDAY AND TUESDAY NIGHT...MOSTLY CLOUDY. LOWS IN THE UPPER
30S. HIGHS IN THE MID 50S. MINIMUM RH 38 PERCENT. WEST WINDS
10 TO 15 MPH. 
.WEDNESDAY AND WEDNESDAY NIGHT...PARTLY CLOUDY. LOWS IN THE LOWER
30S. HIGHS IN THE UPPER 50S. MINIMUM RH 34 PERCENT. WEST WINDS
10 TO 15 MPH. 

$$

VAZ060-065>067-022100-
PRINCE EDWARD-MECKLENBURG-LUNENBURG-NOTTOWAY-
INCLUDING THE CITIES OF...FARMVILLE...SOUTH HILL...CREWE
524 AM EDT THU APR 2 2009

                      TODAY        TONIGHT      FRI          

CLOUD COVER           CLOUDY       CLOUDY       PCLDY        
PRECIP TYPE           RAIN         SHOWERS      TSTMS        
CHANCE PRECIP (%)     30           70           50           
MAX/MIN TEMP          62           55           74           
MAX/MIN RH (%)        75           99           39           
WND20FT2MIN/EARLY(MPH)LGT/VAR      LGT/VAR      S 7-11 G20   
WND20FT2MIN/LATE(MPH) LGT/VAR      E 3-7        SW 15-19 G25 
PRECIP AMOUNT         0.00         0.25         0.10         
PRECIP DURATION       0            3            2            
MAX MIXING HGT(FT-AGL)2000                      7300         
TRANSPORT WIND (MPH)  SE 17                     W 43         
VENT RATE (FT-MPH)    34000                     313900       
DISPERSION (EVENING)               VERY POOR                 
ADI EARLY             12 POOR      20 GEN POOR  89 GOOD      
ADI LATE              27 FAIR      18 GEN POOR  120 VERY GOOD
MAX LVORI EARLY       7            5            5            
MAX LVORI LATE        5            6            1            
LAL                   1            1            2            
HAINES INDEX          3            3            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 40S. WEST WINDS
10 TO 15 MPH. 
.SATURDAY...MOSTLY CLEAR. HIGHS IN THE LOWER 70S. MINIMUM RH
31 PERCENT UNTIL EARLY EVENING. WEST WINDS 10 TO 15 MPH. 
.SUNDAY AND SUNDAY NIGHT...PARTLY CLOUDY. A CHANCE OF SHOWERS.
LOWS AROUND 40. HIGHS IN THE LOWER 70S. MINIMUM RH 36 PERCENT.
SOUTH WINDS 5 TO 10 MPH. 
.MONDAY AND MONDAY NIGHT...CLOUDY WITH A CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE LOWER 50S. HIGHS IN THE MID 60S.
MINIMUM RH 50 PERCENT. WEST WINDS 10 TO 15 MPH. 
.TUESDAY AND TUESDAY NIGHT...MOSTLY CLOUDY. LOWS AROUND 40. HIGHS
IN THE MID 50S. MINIMUM RH 42 PERCENT. WEST WINDS 10 TO 15 MPH. 
.WEDNESDAY AND WEDNESDAY NIGHT...PARTLY CLOUDY. LOWS IN THE MID
30S. HIGHS AROUND 60. MINIMUM RH 38 PERCENT. WEST WINDS 10 TO
15 MPH. 

$$

VAZ063-064-070>076-082-083-090-022100-
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
524 AM EDT THU APR 2 2009

                      TODAY        TONIGHT      FRI          

CLOUD COVER           MCLDY        CLOUDY       PCLDY        
PRECIP TYPE           RAIN         SHOWERS      TSTMS        
CHANCE PRECIP (%)     20           70           50           
MAX/MIN TEMP          65           53           74           
MAX/MIN RH (%)        68           100          42           
WND20FT2MIN/EARLY(MPH)LGT/VAR      E 3-7        SE 5-9 G16   
WND20FT2MIN/LATE(MPH) E 3-7        E 4-8        SW 14-18 G23 
PRECIP AMOUNT         0.00         0.11         0.12         
PRECIP DURATION       0            3            2            
MAX MIXING HGT(FT-AGL)2800                      7700         
TRANSPORT WIND (MPH)  SE 18                     W 41         
VENT RATE (FT-MPH)    50400                     315700       
DISPERSION (EVENING)               POOR                      
ADI EARLY             8 POOR       15 GEN POOR  33 FAIR      
ADI LATE              41 GEN GOOD  13 GEN POOR  120 VERY GOOD
MAX LVORI EARLY       7            7            5            
MAX LVORI LATE        4            6            1            
LAL                   1            1            2            
HAINES INDEX          4            3            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 40S. WEST WINDS
15 TO 20 MPH. 
.SATURDAY...MOSTLY CLEAR. HIGHS IN THE UPPER 60S. MINIMUM RH
34 PERCENT UNTIL EARLY EVENING. WEST WINDS 15 TO 20 MPH. 
.SUNDAY AND SUNDAY NIGHT...PARTLY CLOUDY. A CHANCE OF SHOWERS.
LOWS IN THE LOWER 40S. HIGHS AROUND 70. MINIMUM RH 35 PERCENT.
SOUTH WINDS 5 TO 10 MPH. 
.MONDAY AND MONDAY NIGHT...CLOUDY WITH A CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE UPPER 40S. HIGHS IN THE MID 60S.
MINIMUM RH 51 PERCENT. WEST WINDS 10 TO 15 MPH. 
.TUESDAY AND TUESDAY NIGHT...MOSTLY CLOUDY. LOWS IN THE LOWER
40S. HIGHS IN THE MID 50S. MINIMUM RH 40 PERCENT. WEST WINDS
10 TO 15 MPH. 
.WEDNESDAY AND WEDNESDAY NIGHT...PARTLY CLOUDY. LOWS IN THE MID
30S. HIGHS IN THE UPPER 50S. MINIMUM RH 34 PERCENT. WEST WINDS
10 TO 15 MPH. 

$$

VAZ077-078-084>086-022100-
NORTHUMBERLAND-LANCASTER-GLOUCESTER-MIDDLESEX-MATHEWS-
524 AM EDT THU APR 2 2009

                      TODAY        TONIGHT      FRI          

CLOUD COVER           MCLDY        CLOUDY       PCLDY        
PRECIP TYPE           RAIN         SHOWERS      TSTMS        
CHANCE PRECIP (%)     20           70           50           
MAX/MIN TEMP          64           55           74           
MAX/MIN RH (%)        67           100          45           
WND20FT2MIN/EARLY(MPH)LGT/VAR      E 5-9        SE 7-11 G17  
WND20FT2MIN/LATE(MPH) E 4-8        E 6-10       SW 14-18 G23 
PRECIP AMOUNT         0.00         0.08         0.11         
PRECIP DURATION       0            2            2            
MAX MIXING HGT(FT-AGL)2700                      4900         
TRANSPORT WIND (MPH)  SE 12                     SW 39        
VENT RATE (FT-MPH)    32400                     191100       
DISPERSION (EVENING)               POOR                      
ADI EARLY             9 POOR       17 GEN POOR  27 FAIR      
ADI LATE              37 FAIR      12 POOR      93 GOOD      
MAX LVORI EARLY       7            6            5            
MAX LVORI LATE        4            5            2            
LAL                   1            1            2            
HAINES INDEX          3            3            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 40S. WEST WINDS
15 TO 20 MPH. 
.SATURDAY...MOSTLY CLEAR. HIGHS IN THE MID 60S. MINIMUM RH
37 PERCENT UNTIL EARLY EVENING. WEST WINDS 15 TO 20 MPH. 
.SUNDAY AND SUNDAY NIGHT...PARTLY CLOUDY. A CHANCE OF SHOWERS.
LOWS IN THE LOWER 40S. HIGHS IN THE MID 60S. MINIMUM RH
42 PERCENT. SOUTH WINDS 10 TO 15 MPH. 
.MONDAY AND MONDAY NIGHT...CLOUDY WITH A CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE UPPER 40S. HIGHS IN THE LOWER 60S.
MINIMUM RH 59 PERCENT. WEST WINDS 10 TO 15 MPH. 
.TUESDAY AND TUESDAY NIGHT...MOSTLY CLOUDY. LOWS IN THE LOWER
40S. HIGHS IN THE MID 50S. MINIMUM RH 46 PERCENT. WEST WINDS
10 TO 15 MPH. 
.WEDNESDAY AND WEDNESDAY NIGHT...PARTLY CLOUDY. LOWS IN THE UPPER
30S. HIGHS IN THE UPPER 50S. MINIMUM RH 42 PERCENT. WEST WINDS
10 TO 15 MPH. 

$$

VAZ079>081-087>089-092-022100-
BRUNSWICK-DINWIDDIE-PRINCE GEORGE-GREENSVILLE-SUSSEX-SURRY-
SOUTHAMPTON-
INCLUDING THE CITIES OF...LAWRENCEVILLE...PETERSBURG...HOPEWELL...
EMPORIA...WAKEFIELD...FRANKLIN
524 AM EDT THU APR 2 2009

                      TODAY        TONIGHT      FRI          

CLOUD COVER           CLOUDY       CLOUDY       PCLDY        
PRECIP TYPE           RAIN         SHOWERS      TSTMS        
CHANCE PRECIP (%)     30           70           50           
MAX/MIN TEMP          64           55           76           
MAX/MIN RH (%)        74           100          39           
WND20FT2MIN/EARLY(MPH)LGT/VAR      LGT/VAR      S 6-10 G19   
WND20FT2MIN/LATE(MPH) E 3-7        E 3-7        SW 15-19 G24 
PRECIP AMOUNT         0.00         0.14         0.10         
PRECIP DURATION       0            3            2            
MAX MIXING HGT(FT-AGL)2200                      7900         
TRANSPORT WIND (MPH)  SE 20                     W 44         
VENT RATE (FT-MPH)    44000                     347600       
DISPERSION (EVENING)               VERY POOR                 
ADI EARLY             19 GEN POOR  19 GEN POOR  65 GOOD      
ADI LATE              37 FAIR      13 GEN POOR  120 VERY GOOD
MAX LVORI EARLY       7            6            5            
MAX LVORI LATE        4            7            1            
LAL                   1            1            2            
HAINES INDEX          3            3            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 40S. WEST WINDS
15 TO 20 MPH. 
.SATURDAY...MOSTLY CLEAR. HIGHS AROUND 70. MINIMUM RH 34 PERCENT
UNTIL EARLY EVENING. WEST WINDS 15 TO 20 MPH. 
.SUNDAY AND SUNDAY NIGHT...PARTLY CLOUDY. A CHANCE OF SHOWERS.
LOWS IN THE LOWER 40S. HIGHS IN THE LOWER 70S. MINIMUM RH
34 PERCENT. SOUTH WINDS 5 TO 10 MPH. 
.MONDAY AND MONDAY NIGHT...CLOUDY WITH A CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS AROUND 50. HIGHS IN THE MID 60S. MINIMUM RH
48 PERCENT. WEST WINDS 10 TO 15 MPH. 
.TUESDAY AND TUESDAY NIGHT...MOSTLY CLOUDY. LOWS IN THE LOWER
40S. HIGHS IN THE UPPER 50S. MINIMUM RH 40 PERCENT. WEST WINDS
10 TO 15 MPH. 
.WEDNESDAY AND WEDNESDAY NIGHT...PARTLY CLOUDY. LOWS IN THE MID
30S. HIGHS IN THE LOWER 60S. MINIMUM RH 35 PERCENT. WEST WINDS
10 TO 15 MPH. 

$$

VAZ091-094-022100-
YORK-NEWPORT NEWS/HAMPTON-
INCLUDING THE CITIES OF...POQUOSON...NEWPORT NEWS...HAMPTON
524 AM EDT THU APR 2 2009

                      TODAY        TONIGHT      FRI          

CLOUD COVER           MCLDY        CLOUDY       PCLDY        
PRECIP TYPE           RAIN         SHOWERS      TSTMS        
CHANCE PRECIP (%)     20           60           50           
MAX/MIN TEMP          64           56           75           
MAX/MIN RH (%)        72           100          43           
WND20FT2MIN/EARLY(MPH)LGT/VAR      E 6-10       SE 7-11 G19  
WND20FT2MIN/LATE(MPH) E 5-9        E 5-9        SW 15-19 G24 
PRECIP AMOUNT         0.00         0.08         0.09         
PRECIP DURATION       0            2            2            
MAX MIXING HGT(FT-AGL)1800                      6200         
TRANSPORT WIND (MPH)  SE 20                     SW 43        
VENT RATE (FT-MPH)    36000                     266600       
DISPERSION (EVENING)               POOR                      
ADI EARLY             9 POOR       17 GEN POOR  34 FAIR      
ADI LATE              31 FAIR      13 GEN POOR  119 VERY GOOD
MAX LVORI EARLY       7            6            5            
MAX LVORI LATE        4            5            1            
LAL                   1            1            2            
HAINES INDEX          3            3            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 AROUND 50. WEST WINDS 15 TO
20 MPH. 
.SATURDAY...MOSTLY CLEAR. HIGHS IN THE MID 60S. MINIMUM RH
36 PERCENT UNTIL EARLY EVENING. WEST WINDS 15 TO 20 MPH. 
.SUNDAY AND SUNDAY NIGHT...PARTLY CLOUDY. A CHANCE OF SHOWERS.
LOWS IN THE MID 40S. HIGHS IN THE UPPER 60S. MINIMUM RH
43 PERCENT. SOUTH WINDS 5 TO 10 MPH. 
.MONDAY AND MONDAY NIGHT...CLOUDY WITH A CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE LOWER 50S. HIGHS IN THE LOWER 60S.
MINIMUM RH 55 PERCENT. WEST WINDS 10 TO 15 MPH. 
.TUESDAY AND TUESDAY NIGHT...MOSTLY CLOUDY. LOWS IN THE MID 40S.
HIGHS IN THE MID 50S. MINIMUM RH 45 PERCENT. WEST WINDS 15 TO
20 MPH. 
.WEDNESDAY AND WEDNESDAY NIGHT...PARTLY CLOUDY. LOWS IN THE UPPER
30S. HIGHS IN THE UPPER 50S. MINIMUM RH 41 PERCENT. WEST WINDS
15 TO 20 MPH. 

$$

VAZ093-096-097-022100-
ISLE OF WIGHT-SUFFOLK-CHESAPEAKE-
524 AM EDT THU APR 2 2009

                      TODAY        TONIGHT      FRI          

CLOUD COVER           MCLDY        CLOUDY       PCLDY        
PRECIP TYPE           RAIN         TSTMS        TSTMS        
CHANCE PRECIP (%)     20           60           50           
MAX/MIN TEMP          64           57           77           
MAX/MIN RH (%)        75           100          42           
WND20FT2MIN/EARLY(MPH)LGT/VAR      E 4-8        S 7-11 G19   
WND20FT2MIN/LATE(MPH) E 5-9        E 4-8        SW 16-20     
PRECIP AMOUNT         0.00         0.09         0.08         
PRECIP DURATION       0            2            2            
MAX MIXING HGT(FT-AGL)2100                      7200         
TRANSPORT WIND (MPH)  SE 18                     SW 44        
VENT RATE (FT-MPH)    37800                     316800       
DISPERSION (EVENING)               POOR                      
ADI EARLY             24 FAIR      16 GEN POOR  53 GEN GOOD  
ADI LATE              34 FAIR      12 POOR      120 VERY GOOD
MAX LVORI EARLY       6            7            5            
MAX LVORI LATE        4            6            1            
LAL                   1            2            2            
HAINES INDEX          4            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 AROUND 50. WEST WINDS 15 TO
20 MPH. 
.SATURDAY...MOSTLY CLEAR. HIGHS AROUND 70. MINIMUM RH 35 PERCENT
UNTIL EARLY EVENING. WEST WINDS 15 TO 20 MPH. 
.SUNDAY AND SUNDAY NIGHT...PARTLY CLOUDY. A CHANCE OF SHOWERS.
LOWS IN THE MID 40S. HIGHS IN THE LOWER 70S. MINIMUM RH
42 PERCENT. SOUTH WINDS 5 TO 10 MPH. 
.MONDAY AND MONDAY NIGHT...MOSTLY CLOUDY WITH A CHANCE OF SHOWERS
AND THUNDERSTORMS. LOWS IN THE LOWER 50S. HIGHS IN THE MID 60S.
MINIMUM RH 52 PERCENT. WEST WINDS 10 TO 15 MPH. 
.TUESDAY AND TUESDAY NIGHT...MOSTLY CLOUDY. LOWS IN THE MID 40S.
HIGHS IN THE UPPER 50S. MINIMUM RH 43 PERCENT. WEST WINDS 10 TO
15 MPH. 
.WEDNESDAY AND WEDNESDAY NIGHT...PARTLY CLOUDY. LOWS IN THE UPPER
30S. HIGHS AROUND 60. MINIMUM RH 40 PERCENT. WEST WINDS 10 TO
15 MPH. 

$$

VAZ095-098-022100-
NORFOLK/PORTSMOUTH-VIRGINIA BEACH-
524 AM EDT THU APR 2 2009

                      TODAY        TONIGHT      FRI          

CLOUD COVER           MCLDY        CLOUDY       PCLDY        
PRECIP TYPE           RAIN         TSTMS        TSTMS        
CHANCE PRECIP (%)     20           60           50           
MAX/MIN TEMP          62           56           75           
MAX/MIN RH (%)        73           100          47           
WND20FT2MIN/EARLY(MPH)E 3-7        E 7-11       S 8-12 G21   
WND20FT2MIN/LATE(MPH) E 7-11       E 6-10       SW 16-20     
PRECIP AMOUNT         0.00         0.09         0.07         
PRECIP DURATION       0            2            2            
MAX MIXING HGT(FT-AGL)1500                      5200         
TRANSPORT WIND (MPH)  E 14                      SW 39        
VENT RATE (FT-MPH)    21000                     202800       
DISPERSION (EVENING)               POOR                      
ADI EARLY             13 GEN POOR  14 GEN POOR  37 FAIR      
ADI LATE              21 FAIR      11 POOR      107 VERY GOOD
MAX LVORI EARLY       6            7            5            
MAX LVORI LATE        4            6            1            
LAL                   1            2            2            
HAINES INDEX          3            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 50S. WEST WINDS
15 TO 20 MPH. 
.SATURDAY...MOSTLY CLEAR. HIGHS IN THE UPPER 60S. MINIMUM RH
37 PERCENT UNTIL EARLY EVENING. WEST WINDS 15 TO 20 MPH. 
.SUNDAY AND SUNDAY NIGHT...PARTLY CLOUDY. A CHANCE OF SHOWERS.
LOWS IN THE UPPER 40S. HIGHS IN THE UPPER 60S. MINIMUM RH
47 PERCENT. SOUTH WINDS 10 TO 15 MPH. 
.MONDAY AND MONDAY NIGHT...MOSTLY CLOUDY WITH A CHANCE OF SHOWERS
AND THUNDERSTORMS. LOWS IN THE LOWER 50S. HIGHS IN THE LOWER 60S.
MINIMUM RH 57 PERCENT. WEST WINDS 15 TO 20 MPH. 
.TUESDAY AND TUESDAY NIGHT...MOSTLY CLOUDY. LOWS IN THE MID 40S.
HIGHS IN THE UPPER 50S. MINIMUM RH 48 PERCENT. WEST WINDS 15 TO
20 MPH. 
.WEDNESDAY AND WEDNESDAY NIGHT...PARTLY CLOUDY. LOWS AROUND 40.
HIGHS IN THE UPPER 50S. MINIMUM RH 46 PERCENT. WEST WINDS 10 TO
15 MPH. 

$$

VAZ099-100-022100-
ACCOMACK-NORTHAMPTON VA-
INCLUDING THE CITIES OF...CHINCOTEAGUE...WALLOPS ISLAND...MELFA...
EASTVILLE
524 AM EDT THU APR 2 2009

                      TODAY        TONIGHT      FRI          

CLOUD COVER           MCLDY        CLOUDY       MCLDY        
PRECIP TYPE           DRIZZLE      SHOWERS      TSTMS        
CHANCE PRECIP (%)     10           60           50           
MAX/MIN TEMP          62           53           66           
MAX/MIN RH (%)        69           98           56           
WND20FT2MIN/EARLY(MPH)E 3-7        E 8-12       SE 9-13 G20  
WND20FT2MIN/LATE(MPH) E 7-11       E 9-13       S 15-19      
PRECIP AMOUNT         0.00         0.04         0.06         
PRECIP DURATION       0            2            2            
MAX MIXING HGT(FT-AGL)2000                      600          
TRANSPORT WIND (MPH)  SE  9                     S 24         
VENT RATE (FT-MPH)    18000                     14400        
DISPERSION (EVENING)               FAIR                      
ADI EARLY             10 POOR      13 GEN POOR  27 FAIR      
ADI LATE              21 FAIR      12 POOR      30 FAIR      
MAX LVORI EARLY       7            6            5            
MAX LVORI LATE        4            5            3            
LAL                   1            1            2            
HAINES INDEX          3            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 AROUND 50. WEST WINDS 15 TO
20 MPH. 
.SATURDAY...MOSTLY CLEAR. HIGHS IN THE LOWER 60S. MINIMUM RH
39 PERCENT UNTIL EARLY EVENING. WEST WINDS 15 TO 20 MPH. 
.SUNDAY AND SUNDAY NIGHT...PARTLY CLOUDY. A CHANCE OF SHOWERS.
LOWS IN THE LOWER 40S. HIGHS IN THE MID 60S. MINIMUM RH
49 PERCENT. SOUTH WINDS 10 TO 15 MPH. 
.MONDAY AND MONDAY NIGHT...MOSTLY CLOUDY WITH A CHANCE OF SHOWERS
AND THUNDERSTORMS. LOWS IN THE UPPER 40S. HIGHS AROUND 60.
MINIMUM RH 65 PERCENT. SOUTHWEST WINDS 15 TO 20 MPH. 
.TUESDAY AND TUESDAY NIGHT...MOSTLY CLOUDY. LOWS IN THE LOWER
40S. HIGHS IN THE LOWER 50S. MINIMUM RH 52 PERCENT. WEST WINDS
15 TO 20 MPH. 
.WEDNESDAY AND WEDNESDAY NIGHT...PARTLY CLOUDY. LOWS IN THE UPPER
30S. HIGHS IN THE MID 50S. MINIMUM RH 48 PERCENT. WEST WINDS
15 TO 20 MPH. 

$$

.OUTLOOK 8 TO 14 DAYS...
TEMPERATURES BELOW NORMAL.  PRECIPITATION ABOVE 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 WIND SPEEDS)

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

$$









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