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URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 640
NWS Storm Prediction Center Norman OK
250 PM MDT Mon Aug 19 2024

The NWS Storm Prediction Center has issued a

* Severe Thunderstorm Watch for portions of 
  Northeast Idaho
  Western and Central Montana

* Effective this Monday afternoon and evening from 250 PM until
  1000 PM MDT.

* Primary threats include...
  Scattered damaging wind gusts to 70 mph possible
  Isolated large hail events to 1.5 inches in diameter possible

SUMMARY...Thunderstorms are forming over the mountains of northern
Idaho and western Montana.  These storms will intensify and organize
through the afternoon and spread northeastward across the watch
area.  Damaging wind gusts will be possible in the strongest storms.

The severe thunderstorm watch area is approximately along and 70
statute miles east and west of a line from 35 miles east southeast
of Salmon ID to 35 miles northeast of Cut Bank MT. For a co*plete
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...c*NTINUE...WW 639...

AVIATION...A few severe thunderstorms with hail surface and aloft to
1.5 inches. Extreme turbulence and surface wind gusts to 60 knots. A
few cumulonimbi with maximum tops to 500. Mean storm motion vector
23025.

...Hart