SPC MD 1605

MD 1605 CONCERNING SEVERE THUNDERSTORM WATCH 461... FOR CENTRAL AND EASTERN SOUTH DAKOTA...SOUTHWEST MINNESOTA

Mesoscale Discussion 1605
NWS Storm Prediction Center Norman OK
1130 PM CDT Thu Aug 27 2020

Areas affected...central and eastern South Dakota...southwest
Minnesota

Concerning...Severe Thunderstorm Watch 461...

Valid 280430Z - 280630Z

The severe weather threat for Severe Thunderstorm Watch 461
continues.

SUMMARY...Dangerous wind gusts in excess of 80 mph are possible in
association with an MCS taking shape over central South Dakota.

DISCUSSION...Storms are rapidly evolving into a focused MCS over
central SD, now approaching the Pierre area. Several gusts over 80
mph have been measured recently, and this threat is likely to
continue spreading east as the storms move into an unstable
environment. Strong deep-layer shear and a southwesterly low-level
jet tonight will aid MCS longevity, with damaging winds expected to
persist across the state of SD and eventually southwest MN.

..Jewell.. 08/28/2020

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

ATTN...WFO...FSD...ABR...LBF...UNR...

LAT...LON   44980081 45079976 44799758 44589642 44129592 43699610
            43369644 43089706 42959828 42989933 43330033 43680055
            44170084 44630101 44980081 

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from SPC Forecast Products http://www.spc.noaa.gov/products/md/md1605.html