Watches and Warnings
SPC Severe Thunderstorm Watch 549
WW 549 SEVERE TSTM CT MA ME NH RI CW 162155Z – 170500Z 
URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 549 NWS Storm Prediction Center Norman OK 555 PM EDT Tue Jul 16 2024 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of Northern Connecticut Central and Eastern Massachusetts Far Southern Maine Central and Southern New Hampshire Northern Rhode Island Coastal Waters * Effective this Tuesday afternoon and Wednesday morning from 555 PM until 100 AM EDT. * Primary threats include... Scattered damaging wind gusts to 70 mph possible Isolated large hail events to 1 inch in diameter possible A tornado or two possible SUMMARY...A line of severe thunderstorms will continue moving rapidly east across the watch area this evening, posing a risk for damaging thunderstorm wind gusts to 70 mph, and perhaps isolated hail. The severe thunderstorm watch area is approximately along and 60 statute miles east and west of a line from 30 miles north northwest of Laconia NH to 25 miles southeast of Worcester MA. For a complete depiction of the watch see the associated watch outline update (WOUS64 KWNS WOU9). 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 547...WW 548... 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 27040. ...Bunting
SPC Severe Thunderstorm Watch 548
WW 548 SEVERE TSTM DC DE MD NJ NY PA VA CW 161935Z – 170200Z 
URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 548 NWS Storm Prediction Center Norman OK 335 PM EDT Tue Jul 16 2024 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of District Of Columbia Delaware Central Maryland New Jersey Southeast New York Eastern Pennsylvania Northeast Virginia Coastal Waters * Effective this Tuesday afternoon and evening from 335 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...Widely scattered thunderstorms are expected to develop this afternoon in a hot and humid air mass. Sufficiently strong westerly flow aloft will promote a risk of locally damaging wind gusts in the strongest cells. The severe thunderstorm watch area is approximately along and 65 statute miles east and west of a line from 15 miles west southwest of Patuxent River MD to 55 miles east northeast of Wilkesbarre PA. 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 546...WW 547... 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
SPC Severe Thunderstorm Watch 547
WW 547 SEVERE TSTM MA NY VT 161750Z – 170100Z 
URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 547 NWS Storm Prediction Center Norman OK 150 PM EDT Tue Jul 16 2024 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of Western Massachusetts Eastern New York Central and Southern Vermont * Effective this Tuesday afternoon and evening from 150 PM until 900 PM EDT. * Primary threats include... Scattered damaging winds likely with isolated significant gusts to 75 mph possible Isolated large hail events to 1.5 inches in diameter possible A tornado or two possible SUMMARY...Thunderstorms over central New York will track quickly eastward across the watch area this afternoon, posing a risk of damaging winds. The severe thunderstorm watch area is approximately along and 60 statute miles east and west of a line from 45 miles north northeast of Saranac Lake NY to 30 miles southwest of Pittsfield MA. 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 546... 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 27030. ...Hart
SPC Severe Thunderstorm Watch 546
WW 546 SEVERE TSTM NY PA LE LO 161505Z – 162200Z 
URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 546 NWS Storm Prediction Center Norman OK 1105 AM EDT Tue Jul 16 2024 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of Western and Central New York Northern Pennsylvania Lake Erie Lake Ontario * Effective this Tuesday morning and evening from 1105 AM until 600 PM EDT. * Primary threats include... Scattered damaging winds likely with isolated significant gusts to 75 mph possible Isolated very large hail events to 2 inches in diameter possible A tornado or two possible SUMMARY...Thunderstorms are expected to intensify rapidly across western New York and track across the watch area. Favorably strong winds aloft and warm/moist conditions will favor a risk of damaging wind gusts and hail in the stronger cells. The severe thunderstorm watch area is approximately along and 65 statute miles north and south of a line from 30 miles south southwest of Buffalo NY to 20 miles east southeast of Utica NY. 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 545... AVIATION...A few severe thunderstorms with hail surface and aloft to 2 inches. Extreme turbulence and surface wind gusts to 65 knots. A few cumulonimbi with maximum tops to 500. Mean storm motion vector 27030. ...Hart
SPC Severe Thunderstorm Watch 545
WW 545 SEVERE TSTM KS MO 161210Z – 161800Z 
URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 545 NWS Storm Prediction Center Norman OK 710 AM CDT Tue Jul 16 2024 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of Extreme northeastern Kansas Northwestern and north-central Missouri * Effective this Tuesday morning and afternoon from 710 AM until 100 PM CDT. * Primary threats include... Scattered damaging winds and isolated significant gusts to 75 mph possible Isolated very large hail events to 2 inches in diameter possible SUMMARY...Clusters of strong-severe thunderstorms are expected to move across the watch area through the remainder of the morning and into midday, with severe gusts and isolated large hail as the threats. The severe thunderstorm watch area is approximately along and 45 statute miles north and south of a line from 25 miles west northwest of Leavenworth KS to 55 miles southeast of Chillicothe MO. 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 544... AVIATION...A few severe thunderstorms with hail surface and aloft to 2 inches. Extreme turbulence and surface wind gusts to 65 knots. A few cumulonimbi with maximum tops to 550. Mean storm motion vector 27035. ...Edwards