MD 1635 CONCERNING SEVERE THUNDERSTORM WATCH 511… FOR SOUTHEAST SD…SOUTHWEST MN
Mesoscale Discussion 1635 NWS Storm Prediction Center Norman OK 0919 PM CDT Tue Aug 02 2022 Areas affected...Southeast SD...Southwest MN Concerning...Severe Thunderstorm Watch 511... Valid 030219Z - 030315Z The severe weather threat for Severe Thunderstorm Watch 511 continues. SUMMARY...Gusty winds remain a threat for the next hour or so. DISCUSSION...High-based convection that developed within a very hot air mass over south-central SD early this evening has progressed to near the SD/MN border. Winds have recently gusted to 54kt at HON but this activity is progressing into a much cooler/weakening lapse-rate boundary layer that may become less supportive of downdrafts. Latest radar data suggests the gust front is racing well ahead of the convective line and it will spread into southwest MN within the hour. Latest thinking is the main severe wind threat has peaked and damaging winds will become more local over the next hour or so. ..Darrow.. 08/03/2022 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...MPX...FSD...ABR... LAT...LON 43569725 44729714 44809599 43619614 43569725
