SPC Severe Thunderstorm Watch 500

WW 500 SEVERE TSTM IA MN NE SD 112150Z – 120500Z

WW 0500 Image

Severe Thunderstorm Watch Number 500
NWS Storm Prediction Center Norman OK
450 PM CDT Sun Oct 11 2020

The NWS Storm Prediction Center has issued a

* Severe Thunderstorm Watch for portions of 
  western Iowa
  western Minnesota
  eastern Nebraska
  eastern South Dakota

* Effective this Sunday afternoon from 450 PM until Midnight CDT.

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

SUMMARY...A few severe storms including initially isolated
supercells are expected to evolve into a squall line as they develop
east this evening. Damaging wind and large hail are the primary
threats, though a tornado or two cannot be ruled out.

The severe thunderstorm watch area is approximately along and 75
statute miles east and west of a line from 15 miles east northeast
of Detroit Lakes MN to 35 miles east southeast of Lincoln NE. For a
complete depiction of the watch see the associated watch outline
update (WOUS64 KWNS WOU0).


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


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


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