SPC
SPC Tornado Watch 265
WW 265 TORNADO IL IN KY MO 162000Z – 170300Z 
URGENT - IMMEDIATE BROADCAST REQUESTED Tornado Watch Number 265 NWS Storm Prediction Center Norman OK 300 PM CDT Fri May 16 2025 The NWS Storm Prediction Center has issued a * Tornado Watch for portions of Central and Southern Illinois Central and Southern Indiana Western and Central Kentucky Far Southeast Missouri * Effective this Friday afternoon and evening from 300 PM until 1000 PM CDT. * Primary threats include... Several tornadoes and a couple intense tornadoes likely Widespread large hail and scattered very large hail events to 2.5 inches in diameter likely Widespread damaging winds and isolated significant gusts to 80 mph likely SUMMARY...Supercells ongoing across eastern MO and western IL are expected to continue eastward into the destabilizing airmass downstream across the region. All severe hazards, including very large hail up to 2.5" to 3" in diameter and strong to intense tornadoes, are possible. The tornado watch area is approximately along and 95 statute miles east and west of a line from 35 miles north northwest of Indianapolis IN to 40 miles south of Paducah KY. 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...CONTINUE...WW 261...WW 262...WW 263...WW 264... AVIATION...Tornadoes and a few severe thunderstorms with hail surface and aloft to 2.5 inches. Extreme turbulence and surface wind gusts to 70 knots. A few cumulonimbi with maximum tops to 500. Mean storm motion vector 24040. ...Mosier
SPC Tornado Watch 262
WW 262 TORNADO AR IL MO OK 161655Z – 170000Z 
URGENT - IMMEDIATE BROADCAST REQUESTED Tornado Watch Number 262 NWS Storm Prediction Center Norman OK 1155 AM CDT Fri May 16 2025 The NWS Storm Prediction Center has issued a * Tornado Watch for portions of Northern Arkansas Southwestern Illinois Central and Eastern Missouri Far Eastern Oklahoma * Effective this Friday morning and evening from 1155 AM until 700 PM CDT. * Primary threats include... A few tornadoes likely with a couple intense tornadoes possible Widespread large hail and scattered very large hail events to 4 inches in diameter likely Scattered damaging wind gusts to 70 mph likely SUMMARY...The airmass across the region continues to destabilize amid strong low-level moisture advection and daytime heating. Robust thunderstorm development is anticipated over the next few hours as an approaching cold front interacts with this strong buoyant airmass. Strong vertical shear is also in place, supporting supercells as the primary storm mode. All severe hazards are possible with these supercells, including very large hail up to 4" in diameter and strong tornadoes. The tornado watch area is approximately along and 80 statute miles east and west of a line from 70 miles south of Harrison AR to 35 miles north northwest of Saint Louis MO. For a complete depiction of the watch see the associated watch outline update (WOUS64 KWNS WOU2). 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 260...WW 261... AVIATION...Tornadoes and a few severe thunderstorms with hail surface and aloft to 4 inches. Extreme turbulence and surface wind gusts to 60 knots. A few cumulonimbi with maximum tops to 500. Mean storm motion vector 24040. ...Mosier
SPC Severe Thunderstorm Watch 260
WW 260 SEVERE TSTM DE MD NJ PA CW 161405Z – 162100Z 
URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 260 NWS Storm Prediction Center Norman OK 1005 AM EDT Fri May 16 2025 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of Delaware Far Eastern Maryland New Jersey Far Eastern Pennsylvania Coastal Waters * Effective this Friday morning and afternoon from 1005 AM until 500 PM EDT. * 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 SUMMARY...Thunderstorms continue to strengthen as they move into more of eastern PA and eastern MD. Destabilization is expected downstream, with the resulting combination of instability and shear supportive of supercells capable of large hail and damaging gusts. The severe thunderstorm watch area is approximately along and 55 statute miles east and west of a line from 15 miles northwest of Trenton NJ to 45 miles south of Dover DE. For a complete depiction of the watch see the associated watch outline update (WOUS64 KWNS WOU0). 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 259... 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 27035. ...Mosier
SPC – No watches are valid as of Fri May 16 06:05:02 UTC 2025
No watches are valid as of Fri May 16 06:05:02 UTC 2025.
SPC Tornado Watch 258
WW 258 TORNADO MI LE LH 160330Z – 160900Z 
URGENT - IMMEDIATE BROADCAST REQUESTED Tornado Watch Number 258 NWS Storm Prediction Center Norman OK 1130 PM EDT Thu May 15 2025 The NWS Storm Prediction Center has issued a * Tornado Watch for portions of Eastern Lower Michigan Lake Erie Lake Huron * Effective this Thursday night and Friday morning from 1130 PM until 500 AM EDT. * Primary threats include... A couple tornadoes possible Scattered damaging winds likely with isolated significant gusts to 75 mph possible Isolated large hail events to 1.5 inches in diameter possible SUMMARY...A well-organized thunderstorm cluster should continue to pose a threat for scattered severe/damaging winds and a couple of tornadoes as it moves quickly eastward across Lower Michigan. The tornado watch area is approximately along and 50 statute miles east and west of a line from 35 miles northwest of Bad Axe MI to 35 miles south of Ann Arbor MI. For a complete depiction of the watch see the associated watch outline update (WOUS64 KWNS WOU8). 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 256...WW 257... AVIATION...Tornadoes and 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 25045. ...Gleason
