SPC MD 1057



MD 1057 CONCERNING SEVERE POTENTIAL…WATCH UNLIKELY FOR CENTRAL NORTH DAKOTA

MD 1057 Image

Mesoscale Discussion 1057
NWS Storm Prediction Center Norman OK
1258 PM CDT Tue Jun 30 2020

Areas affected...Central North Dakota

Concerning...Severe potential...Watch unlikely 

Valid 301758Z - 301900Z

Probability of Watch Issuance...5 percent

SUMMARY...Large hail and perhaps a damaging gust possible with a
supercell near Harvey moving north. This isolated activity may
continue this afternoon. No WW currently expected.

DISCUSSION...A supercell has recently developed along the southern
flank of generally decaying convection in central North Dakota. The
storm has intensified and deepened fairly rapidly and has scoured
out low-level clouds in its vicinity. KBIS VAD data suggests a
strongly veering wind profile through about 8 km with large 0-3 km
SRH. Surface observations would indicate this activity is at least
somewhat elevated, being behind outflow from storm to the north.
However, the airmass is showing signs of steady improvement which is
expected to continue this afternoon. Large hail will likely be the
primary threat from this activity with less potential for damaging
gusts. Activity is expected to remain quite isolated. No WW is
expected.

..Wendt/Hart.. 06/30/2020

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

ATTN...WFO...FGF...BIS...

LAT...LON   48979917 48529894 47669891 47159906 46949948 46979981
            47300012 47910021 48730027 48980018 49109942 48979917 

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