WW 257 TORNADO IN MI LM 160130Z – 160700Z
URGENT - IMMEDIATE BROADCAST REQUESTED Tornado Watch Number 257 NWS Storm Prediction Center Norman OK 930 PM EDT Thu May 15 2025 The NWS Storm Prediction Center has issued a * Tornado Watch for portions of Northern and West-Central Indiana Far Southern Lower Michigan Lake Michigan * Effective this Thursday night and Friday morning from 930 PM until 300 AM EDT. * Primary threats include... A few tornadoes and a couple intense tornadoes possible Scattered damaging winds likely with isolated significant gusts to 75 mph possible Scattered large hail and isolated very large hail events to 2.5 inches in diameter possible SUMMARY...Thunderstorms will spread east-northeastward this evening and overnight while posing a threat for a few tornadoes, scattered severe/damaging winds with the ongoing cluster, and large hail with any sustained supercells. The tornado watch area is approximately along and 45 statute miles east and west of a line from 30 miles east of Benton Harbor MI to 90 miles south of South Bend IN. 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 253...WW 255...WW 256... AVIATION...Tornadoes and a few severe thunderstorms with hail surface and aloft to 2.5 inches. Extreme turbulence and surface wind gusts to 65 knots. A few cumulonimbi with maximum tops to 500. Mean storm motion vector 24040. ...Gleason