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Severe Thunderstorm Warning

Status

New Event Expired

Start Time

Tue 07/21/2026 11:42 AM EDT

End Time

Tue 07/21/2026 12:30 PM EDT

Significance

Warning

Storm Location

2 mi N of Glenville, CT

Storm Motion

Moving E at 20 mph

Impacts

High impact

Hail threatradar indicated
Max hail size1.00 in
Wind threatradar indicated
Max wind gust60 mph

Locations Affected

Stamford, CT ∙ Norwalk, CT ∙ White Plains, NY ∙ North Castle, NY ∙ New Canaan, CT ∙ Sherwood Island State Park, CT ∙ Greenwich, CT ∙ Westchester County Airport, NY ∙ Lyons Plain, CT ∙ North White Plains, NY

Full Alert Message

BULLETIN - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Warning National Weather Service New York NY 1142 AM EDT Tue Jul 21 2026 The National Weather Service in Upton NY has issued a * Severe Thunderstorm Warning for... Southern Fairfield County in southern Connecticut... Central Westchester County in southeastern New York... * Until 1230 PM EDT. * At 1141 AM EDT, a severe thunderstorm was located over Greenwich, or near Port Chester, moving east at 20 mph. HAZARD...60 mph wind gusts and quarter size hail. SOURCE...Radar indicated. IMPACT...Minor hail damage to vehicles is possible. Expect wind damage to trees and power lines. * This severe thunderstorm will be near... Stamford and Greenwich around 1145 AM EDT. New Canaan and Darien around 1155 AM EDT. Norwalk around 1205 PM EDT. Westport around 1215 PM EDT. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. && LAT...LON 4111 7328 4112 7330 4110 7334 4105 7337 4099 7375 4113 7380 4124 7331 TIME...MOT...LOC 1541Z 259DEG 17KT 4106 7367 HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...1.00 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...60 MPH