Day: August 18, 2024
SPC Severe Thunderstorm Watch 638
WW 638 SEVERE TSTM AL FL GA CW 182310Z – 190600Z 
URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 638 NWS Storm Prediction Center Norman OK 710 PM EDT Sun Aug 18 2024 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of Southern Alabama Florida Panhandle Southern Georgia Coastal Waters * Effective this Sunday night and Monday morning from 710 PM until 200 AM EDT. * Primary threats include... Scattered damaging wind gusts to 65 mph possible SUMMARY...Clusters of storms capable of wind damage and possibly some hail will continue south-southeastward across the region this evening within a hot/moist environment. The severe thunderstorm watch area is approximately along and 55 statute miles north and south of a line from 50 miles northwest of Pensacola FL to 30 miles east southeast of Vidalia GA. For a complete depiction of the watch see the associated watch outline update (WOUS64 KWNS WOU8). 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 634...WW 635...WW 636...WW 637... AVIATION...A few severe thunderstorms with hail surface and aloft to 1 inch. Extreme turbulence and surface wind gusts to 55 knots. A few cumulonimbi with maximum tops to 550. Mean storm motion vector 31025. ...Guyer
Water rescues underway in Connecticut after flash flooding causes mudslides, washes out roads
Significant rainfall totals nearing a foot across southwestern Connecticut caused the National Weather Service to issue a Flash Flood Emergency on Sunday as law enforcement worked multiple water rescues across the region.
Ernesto becomes hurricane again as Atlantic Canada threatened by dangerous surf, rip currents
Ernesto has intensified into a hurricane again and is now expected to bring impacts to Atlantic Canada this week, including high surf, rip currents and strong winds in parts of Newfoundland, in its final chapter before heading into the open North Atlantic.
SPC Severe Thunderstorm Watch 637
WW 637 SEVERE TSTM AR LA MS 182030Z – 190300Z 
URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 637 NWS Storm Prediction Center Norman OK 330 PM CDT Sun Aug 18 2024 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of Central Arkansas Northeast Louisiana Western Mississippi * Effective this Sunday afternoon and evening from 330 PM until 1000 PM CDT. * Primary threats include... Scattered damaging winds likely with isolated significant gusts to 75 mph possible Scattered large hail events to 1.5 inches in diameter possible SUMMARY...Thunderstorms are expected to intensify through the late afternoon across central Arkansas and track southeastward across the watch area. a few intense storms capable of damaging wind gusts and large hail are expected. The severe thunderstorm watch area is approximately along and 60 statute miles north and south of a line from 15 miles north northwest of Fort Smith AR to 60 miles southeast of Greenville MS. For a complete depiction of the watch see the associated watch outline update (WOUS64 KWNS WOU7). 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 634...WW 635...WW 636... AVIATION...A few severe thunderstorms with hail surface and aloft to 1.5 inches. Extreme turbulence and surface wind gusts to 65 knots. A few cumulonimbi with maximum tops to 500. Mean storm motion vector 30030. ...Hart
SPC Severe Thunderstorm Watch 636
WW 636 SEVERE TSTM AL GA 181940Z – 190300Z 
URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 636 NWS Storm Prediction Center Norman OK 240 PM CDT Sun Aug 18 2024 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of Central Alabama Central Georgia * Effective this Sunday afternoon and evening from 240 PM until 1000 PM CDT. * Primary threats include... Scattered damaging wind gusts to 70 mph possible Isolated large hail events to 1 inch in diameter possible SUMMARY...Thunderstorms are rapidly developing across north-central Alabama/Georgia in a moist and moderately unstable air mass. These storms will progress southeastward through the afternoon and early evening, posing a risk for damaging wind gusts and some hail. The severe thunderstorm watch area is approximately along and 65 statute miles north and south of a line from 40 miles west southwest of Tuscaloosa AL to 65 miles southeast of Athens GA. For a complete depiction of the watch see the associated watch outline update (WOUS64 KWNS WOU6). 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 634...WW 635... AVIATION...A few severe thunderstorms with hail surface and aloft to 1 inch. Extreme turbulence and surface wind gusts to 60 knots. A few cumulonimbi with maximum tops to 500. Mean storm motion vector 30025. ...Hart
SPC Severe Thunderstorm Watch 635
WW 635 SEVERE TSTM GA NC SC VA CW 181925Z – 190200Z 
URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 635 NWS Storm Prediction Center Norman OK 325 PM EDT Sun Aug 18 2024 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of Eastern Georgia Central North Carolina Central South Carolina Southern Virginia Coastal Waters * Effective this Sunday afternoon and evening from 325 PM until 1000 PM EDT. * Primary threats include... Scattered damaging wind gusts to 70 mph possible Isolated large hail events to 1 inch in diameter possible SUMMARY...Scattered thunderstorms are forming from central Virginia into the western Carolinas. These storms will grow in number through the afternoon, with several strong to severe storms expected. Damaging winds are the primary threat. The severe thunderstorm watch area is approximately along and 75 statute miles east and west of a line from 50 miles north northeast of Richmond VA to 40 miles west of Columbia SC. For a complete depiction of the watch see the associated watch outline update (WOUS64 KWNS WOU5). 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 634... AVIATION...A few severe thunderstorms with hail surface and aloft to 1 inch. Extreme turbulence and surface wind gusts to 60 knots. A few cumulonimbi with maximum tops to 500. Mean storm motion vector 27025. ...Hart