SPC MD 1469



MD 1469 CONCERNING SEVERE THUNDERSTORM WATCH 432… FOR SOUTHWESTERN NORTH DAKOTA/NORTHWESTERN SOUTH DAKOTA

MD 1469 Image

Mesoscale Discussion 1469
NWS Storm Prediction Center Norman OK
1003 PM CDT Tue Aug 11 2020

Areas affected...southwestern North Dakota/northwestern South Dakota

Concerning...Severe Thunderstorm Watch 432...

Valid 120303Z - 120500Z

The severe weather threat for Severe Thunderstorm Watch 432
continues.

SUMMARY...Risk for damaging winds continues in/near WW 432.

DISCUSSION...latest radar loop shows a semi-continuous band of
storms moving east-southeastward across southwestern North Dakota
and adjacent northwestern South Dakota at around 30 kt.  With
low-level southeasterly flow veering to west-northwesterly aloft,
and favorable downstream instability in place, expect storms to
continue crossing the WW -- accompanied by risk for strong/locally
damaging wind gusts.  Greatest short-term risk exists across Perkins
County South Dakota, where the most intense/vigorous band of storms
is occurring.  With an axis of 3000 J/kg mixed-layer CAPE just to
the southeast, extending southeastward across South Dakota, expect
this band of storms to remain organized/forward-propagating.

..Goss.. 08/12/2020

...Please see www.spc.noaa.gov for graphic product...

ATTN...WFO...ABR...BIS...UNR...BYZ...

LAT...LON   45860390 45990316 46460250 47180216 46750079 45320020
            44540134 45300448 45860390 

Read more



Source link

Editor
  • Editor
  • Website is owned by STL.News, LLC, but hosted, designed and maintained by WebTech Group (WTG). WTG is a St. Louis based web designed firm offering digital marketing services and news sites. We created RSSWX.News to help the major search engines easily find news direct from the source, which is the National Weather Service.