SPC Severe Thunderstorm Watch 252



WW 252 SEVERE TSTM MT 102050Z – 110400Z

WW 0252 Image


URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 252
NWS Storm Prediction Center Norman OK
250 PM MDT Thu Jun 10 2021

The NWS Storm Prediction Center has issued a

* Severe Thunderstorm Watch for portions of 
  East-Central/Northeast Montana

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

* Primary threats include...
  Scattered large hail and isolated very large hail events to 3
    inches in diameter possible
  Scattered damaging wind gusts to 70 mph possible
  A tornado or two possible

SUMMARY...Scattered severe thunderstorms including some supercells
are expected to develop initially across east-central Montana and
quickly move north-northeastward through evening. Large hail and
severe-caliber wind gusts are the primary hazards, although a
tornado could also occur.

The severe thunderstorm watch area is approximately along and 90
statute miles east and west of a line from 75 miles east northeast
of Havre MT to 55 miles west southwest of Miles City MT. For a
complete depiction of the watch see the associated watch outline
update (WOUS64 KWNS WOU2).

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 251...

AVIATION...A few severe thunderstorms with hail surface and aloft to
3 inches. Extreme turbulence and surface wind gusts to 60 knots. A
few cumulonimbi with maximum tops to 500. Mean storm motion vector
22035.

...Guyer

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