WWUS20 KWNS 031436 SEL3 SPC WW 031436 MEZ000-NHZ000-032200- URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 483 NWS Storm Prediction Center Norman OK 1040 AM EDT Thu Jul 3 2025 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of Maine New Hampshire * Effective this Thursday morning and evening from 1040 AM until 600 PM EDT. * Primary threats include... Scattered damaging wind gusts to 70 mph likely Scattered large hail and isolated very large hail events to 2 inches in diameter possible SUMMARY...Thunderstorm coverage is expected to increase across the region over the next few hours, with multiple rounds of storms possible. Environmental conditions support supercells capable of large hail with the initial more discrete development. With time, a trend towards a more linear mode is anticipated. As this occurs, the primary hazard will transition from large hail to damaging gusts. The severe thunderstorm watch area is approximately along and 80 statute miles east and west of a line from 45 miles north of Houlton ME to 35 miles southwest of Portsmouth NH. For a complete depiction of the watch see the associated watch outline update (WOUS64 KWNS WOU3). 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 26035. ...Mosier