SPC Severe Thunderstorm Watch 254

WW 254 SEVERE TSTM MT ND 110250Z – 110800Z

WW 0254 Image

Severe Thunderstorm Watch Number 254
NWS Storm Prediction Center Norman OK
950 PM CDT Thu Jun 10 2021

The NWS Storm Prediction Center has issued a

* Severe Thunderstorm Watch for portions of 
  northeast Montana
  western and central North Dakota

* Effective this Thursday night and Friday morning from 950 PM
  until 300 AM CDT.

* Primary threats include...
  Widespread damaging winds and isolated significant gusts to 80
    mph likely
  Scattered large hail and isolated very large hail events to 3
    inches in diameter likely
  A tornado or two possible

SUMMARY...Severe storms are expected to continue into the early
morning hours with some supercells possible, but with primary storm
mode transitioning to a squall line. Damaging wind and large hail
are the primary threats, but a couple of tornadoes are also

The severe thunderstorm watch area is approximately along and 125
statute miles east and west of a line from 70 miles northwest of
Minot ND to 75 miles southwest of Bismarck ND. For a complete
depiction of the watch see the associated watch outline update


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


OTHER WATCH INFORMATION...This severe thunderstorm watch replaces
tornado watch number 251...severe thunderstorm watch number 252.
Watch number 251 252 will not be in effect after 950 PM CDT.
CONTINUE...WW 253...

AVIATION...A few severe thunderstorms with hail surface and aloft to
3 inches. Extreme turbulence and surface wind gusts to 70 knots. A
few cumulonimbi with maximum tops to 550. Mean storm motion vector


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