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URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 391
NWS Storm Prediction Center Norman OK
140 PM MDT Sun Jun 19 2022

The NWS Storm Prediction Center has issued a

* Severe Thunderstorm Watch for portions of 
  Southeast Montana
  Far north-central Wyoming

* Effective this Sunday afternoon and evening from 140 PM until
  800 PM MDT.

* Primary threats include...
  Scattered large hail and isolated very large hail events to 2.5
    inches in diameter possible
  Isolated significant damaging wind gusts to 75 mph possible
  A tornado or two possible

SUMMARY...A long-track supercell or two will likely develop off the
Big Horns and spread northeast across mainly southeast Montana into
early evening. Sporadic large hail and localized severe gusts will
be the main hazards, but a brief tornado or two is also possible.

The severe thunderstorm watch area is approximately along and 80
statute miles north and south of a line from 20 miles north
northeast of Baker MT to 65 miles north northwest of Sheridan WY.
For a co*plete depiction of the watch see the associated watch
outline update (WOUS64 KWNS WOU1).

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
2.5 inches. Extreme turbulence and surface wind gusts to 65 knots. A
few cumulonimbi with maximum tops to 450. Mean storm motion vector
21035.

...Grams