Tuesday, July 7, 2020

SPC Severe Thunderstorm Watch 340

WW 340 SEVERE TSTM ND 080055Z - 080700Z
WW 0340 Image

URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 340
NWS Storm Prediction Center Norman OK
755 PM CDT Tue Jul 7 2020

The NWS Storm Prediction Center has issued a

* Severe Thunderstorm Watch for portions of 
  Western and central North Dakota

* Effective this Tuesday night and Wednesday morning from 755 PM
  until 200 AM CDT.

* Primary threats include...
  Widespread damaging winds and isolated significant gusts to 80
    mph likely
  Scattered large hail likely with isolated very large hail events
    to 2 inches in diameter possible
  A tornado or two possible

SUMMARY...Lines of storms, with a history of severe winds in excess
of 80 mph, will spread quickly eastward from eastern Montana into
North Dakota through early tonight.  The storm environment will
likely maintain the damaging-wind threat with bowing segments, as
well as the potential for large hail with the stronger storms.  An
isolated tornado or two will also be possible with embedded
circulations.

The severe thunderstorm watch area is approximately along and 105
statute miles east and west of a line from 55 miles north northwest
of Minot ND to 20 miles east of Lemmon SD. For a complete 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...CONTINUE...WW 338...WW 339...

AVIATION...A few severe thunderstorms with hail surface and aloft to
2 inches. Extreme turbulence and surface wind gusts to 70 knots. A
few cumulonimbi with maximum tops to 550. Mean storm motion vector
26045.

...Thompson

Read more

from SPC Forecast Products http://www.spc.noaa.gov/products/watch/ww0340.html

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