WW 643 SEVERE TSTM MT 220025Z – 220700Z
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 643
NWS Storm Prediction Center Norman OK
625 PM MDT Wed Aug 21 2024 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of Northeast Montana * Effective this Wednesday night and Thursday morning from 625 PM until 100 AM MDT. * Primary threats include... Scattered damaging winds and 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 should continue to intensify this evening
across parts of northeast Montana, while posing a threat for large
to very large hail around 1.5-2.5 inches in diameter, along with
severe/damaging winds up to 65-75 mph. The severe thunderstorm watch area is approximately along and 120
statute miles east and west of a line from 50 miles north of Glasgow
MT to 95 miles south of Glasgow MT. 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. && OTHER WATCH INFORMATION...CONTINUE...WW 642... AVIATION...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
26025. ...Gleason
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