Watches and Warnings
SPC Severe Thunderstorm Watch 618
WW 618 SEVERE TSTM SD WY 111830Z – 120100Z 
URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 618 NWS Storm Prediction Center Norman OK 1230 PM MDT Sun Aug 11 2024 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of Southwest South Dakota Northeast Wyoming * Effective this Sunday afternoon and evening from 1230 PM until 700 PM MDT. * Primary threats include... Scattered large hail and isolated very large hail events to 2 inches in diameter possible Scattered damaging wind gusts to 70 mph possible A tornado or two possible SUMMARY...Thunderstorms will increase in coverage and intensity through the afternoon across the watch area. A few severe storms are expected, capable of large hail and damaging wind gusts. The severe thunderstorm watch area is approximately along and 40 statute miles north and south of a line from 50 miles west of Rapid City SD to 65 miles southeast of Philip SD. 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. && 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 28030. ...Hart
SPC – No watches are valid as of Sat Aug 10 00:00:02 UTC 2024
No watches are valid as of Sat Aug 10 00:00:02 UTC 2024.
SPC Tornado Watch 617
WW 617 TORNADO CT MA NJ NY PA VT 091725Z – 100200Z 
URGENT - IMMEDIATE BROADCAST REQUESTED Tornado Watch Number 617 NWS Storm Prediction Center Norman OK 125 PM EDT Fri Aug 9 2024 The NWS Storm Prediction Center has issued a * Tornado Watch for portions of western Connecticut western Massachusetts parts of central and northern New Jersey eastern New York eastern Pennsylvania central and southern Vermont * Effective this Friday afternoon and evening from 125 PM until 1000 PM EDT. * Primary threats include... A couple tornadoes possible Isolated damaging wind gusts to 65 mph possible SUMMARY...As extra-tropical cyclone Debby continues moving northeastward across eastern New York this afternoon and into this evening, potential for a few tornadoes will accompany this system -- affecting areas as far east as western New England. The tornado watch area is approximately along and 55 statute miles east and west of a line from 40 miles northwest of Rutland VT to 65 miles south of Monticello NY. For a complete depiction of the watch see the associated watch outline update (WOUS64 KWNS WOU7). PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A Tornado Watch means conditions are favorable for tornadoes and 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. && OTHER WATCH INFORMATION...CONTINUE...WW 616... AVIATION...Tornadoes and a few severe thunderstorms with hail surface and aloft to 0.5 inches. Extreme turbulence and surface wind gusts to 55 knots. A few cumulonimbi with maximum tops to 500. Mean storm motion vector 18040. ...Goss
SPC Tornado Watch 616
WW 616 TORNADO DC DE MD NJ NY PA VA CW 091015Z – 091800Z 
URGENT - IMMEDIATE BROADCAST REQUESTED Tornado Watch Number 616 NWS Storm Prediction Center Norman OK 615 AM EDT Fri Aug 9 2024 The NWS Storm Prediction Center has issued a * Tornado Watch for portions of District Of Columbia Delaware Central and Eastern Maryland Much of New Jersey Southeast New York Central and Eastern Pennsylvania Eastern and Northern Virginia Coastal Waters * Effective this Friday morning and afternoon from 615 AM until 200 PM EDT. * Primary threats include... A few tornadoes possible Isolated damaging wind gusts to 60 mph possible SUMMARY...Isolated to widely scattered thunderstorms are forecast to develop this morning into the early afternoon as a warm front advances northward across the Watch area. Several supercells will likely develop and the stronger storms will potentially yield a risk for tornadoes. Isolated damaging gusts may also accompany the more intense storms. The tornado watch area is approximately along and 75 statute miles east and west of a line from 30 miles northwest of Monticello NY to 50 miles south southwest of Patuxent River MD. For a complete depiction of the watch see the associated watch outline update (WOUS64 KWNS WOU6). PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A Tornado Watch means conditions are favorable for tornadoes and 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. && OTHER WATCH INFORMATION...CONTINUE...WW 615... AVIATION...Tornadoes and a few severe thunderstorms with hail surface and aloft to 0 inches. Extreme turbulence and surface wind gusts to 50 knots. A few cumulonimbi with maximum tops to 500. Mean storm motion vector 18035. ...Smith
SPC Tornado Watch 615
WW 615 TORNADO DC MD NC VA WV CW 082235Z – 091100Z 
URGENT - IMMEDIATE BROADCAST REQUESTED Tornado Watch Number 615 NWS Storm Prediction Center Norman OK 635 PM EDT Thu Aug 8 2024 The NWS Storm Prediction Center has issued a * Tornado Watch for portions of District Of Columbia Maryland Eastern North Carolina Central and eastern Virginia The eastern West Virginia Panhandle Coastal Waters * Effective this Thursday night and Friday morning from 635 PM until 700 AM EDT. * Primary threats include... A few tornadoes possible SUMMARY...Convective bands with embedded supercells and the potential for a few tornadoes will persist overnight and spread northward from North Carolina into Virginia/Maryland with the remnants of tropical cyclone Debby. The tornado watch area is approximately along and 70 statute miles east and west of a line from 30 miles east northeast of Martinsburg WV to 35 miles east of Goldsboro NC. For a complete depiction of the watch see the associated watch outline update (WOUS64 KWNS WOU5). PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A Tornado Watch means conditions are favorable for tornadoes and 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. && OTHER WATCH INFORMATION...This tornado watch replaces tornado watch number 614. Watch number 614 will not be in effect after 635 PM EDT. AVIATION...Tornadoes and a few severe thunderstorms with hail surface and aloft to 0.5 inches. Extreme turbulence and surface wind gusts to 50 knots. A few cumulonimbi with maximum tops to 500. Mean storm motion vector 17035. ...Thompson
