838 WWUS20 KWNS 180303 SEL0 SPC WW 180303 CTZ000-MAZ000-NJZ000-NYZ000-PAZ000-VTZ000-180300- URGENT - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WATCH - NUMBER 340 NWS STORM PREDICTION CENTER NORMAN OK 1103 PM EDT FRI AUG 17 2018 THE NWS STORM PREDICTION CENTER HAS CANCELLED SEVERE THUNDERSTORM WATCH NUMBER 340 ISSUED AT 340 PM EDT FOR PORTIONS OF CONNECTICUT MASSACHUSETTS NEW JERSEY NEW YORK PENNSYLVANIA VERMONT  043 WWUS20 KWNS 181844 SEL1 SPC WW 181844 COZ000-NMZ000-190200- URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 341 NWS Storm Prediction Center Norman OK 1245 PM MDT Sat Aug 18 2018 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of Southeast Colorado Northeast New Mexico * Effective this Saturday afternoon and evening from 1245 PM until 800 PM MDT. * Primary threats include... Scattered large hail likely with isolated very large hail events to 2 inches in diameter possible Scattered damaging wind gusts to 70 mph possible SUMMARY...Thunderstorms will develop off the mountains of south-central Colorado and northeast New Mexico, and track eastward across the watch area this afternoon. Large hail and damaging winds will be possible in the strongest cells. The severe thunderstorm watch area is approximately along and 60 statute miles east and west of a line from 40 miles east northeast of Limon CO to 40 miles southeast of Las Vegas NM. For a complete depiction of the watch see the associated watch outline update (WOUS64 KWNS WOU1). PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A Severe Thunderstorm Watch means conditions are favorable for severe thunderstorms in and close to the watch area. Persons in these areas should be on the lookout for threatening weather conditions and listen for later statements and possible warnings. Severe thunderstorms can and occasionally do produce tornadoes. && AVIATION...A few severe thunderstorms with hail surface and aloft to 2 inches. Extreme turbulence and surface wind gusts to 60 knots. A few cumulonimbi with maximum tops to 500. Mean storm motion vector 28025. ...Hart  216 WWUS20 KWNS 182353 SEL2 SPC WW 182353 KSZ000-OKZ000-TXZ000-190500- URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 342 NWS Storm Prediction Center Norman OK 655 PM CDT Sat Aug 18 2018 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of Southwestern Kansas The Oklahoma Panhandle The western and northern Texas Panhandle * Effective this Saturday night from 655 PM until Midnight CDT. * Primary threats include... Isolated damaging wind gusts to 70 mph possible Isolated large hail events to 1.5 inches in diameter possible SUMMARY...Storm mergers should lead to some upscale growth into southwestern Kansas this evening, while another band of storms will move east-southeastward from New Mexico into the Texas Panhandle. Isolated large hail will be possible with the initial storms in Kansas with marginal supercell structures, and a few damaging gusts will be the main concern with the linear convection through late evening. The severe thunderstorm watch area is approximately along and 60 statute miles east and west of a line from 35 miles northwest of Garden City KS to 55 miles east southeast of Tucumcari NM. For a complete depiction of the watch see the associated watch outline update (WOUS64 KWNS WOU2). PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A Severe Thunderstorm Watch means conditions are favorable for severe thunderstorms in and close to the watch area. Persons in these areas should be on the lookout for threatening weather conditions and listen for later statements and possible warnings. Severe thunderstorms can and occasionally do produce tornadoes. && OTHER WATCH INFORMATION...CONTINUE...WW 341... AVIATION...A few severe thunderstorms with hail surface and aloft to 1.5 inches. Extreme turbulence and surface wind gusts to 60 knots. A few cumulonimbi with maximum tops to 500. Mean storm motion vector 31020. ...Thompson