SPC MD 1023



MD 1023 CONCERNING SEVERE THUNDERSTORM WATCH 341… FOR SOUTH-CENTRAL ND…NORTH-CENTRAL SD

MD 1023 Image

Mesoscale Discussion 1023
NWS Storm Prediction Center Norman OK
1119 PM CDT Fri Jun 07 2019

Areas affected...south-central ND...north-central SD

Concerning...Severe Thunderstorm Watch 341...

Valid 080419Z - 080515Z

The severe weather threat for Severe Thunderstorm Watch 341
continues.

SUMMARY...Isolated severe gusts remain possible for the next few
hours.

DISCUSSION...Radar mosaic shows a cluster of thunderstorms
paralleling a surface front near the SD/ND border and moving
northeast.  The terminus of a strong 50kt southerly LLJ and near 8
degrees C/km 700-500mb lapse rates will act to sustain the
thunderstorms for the next few hours.  Although convective
inhibition is increasing, the steep 700-500mb lapse rates provide
some potential for intermittently invigorated downdrafts capable of
isolated severe gusts (60mph).

..Smith.. 06/08/2019

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

ATTN...WFO...ABR...BIS...

LAT...LON   46340151 47200012 47199936 46939892 46539879 45420033
            45810118 46340151 

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