SPC AC 011542
Day 1 Convective Outlook
NWS Storm Prediction Center Norman OK
1042 AM CDT Wed Apr 01 2020
Valid 011630Z - 021200Z
...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS OVER PARTS OF
WESTERN NEBRASKA INTO CENTRAL AND EASTERN SOUTH DAKOTA....
Isolated hail may occur this afternoon and evening from western
Nebraska into parts of South Dakota.
Latest surface analysis shows a cold front sagging southward across
parts of SD into western NE. This boundary will move into a
slightly more moist and marginally unstable air mass through the
day, with an increasing risk of showers and a few thunderstorms by
late afternoon. Present indications are that a capping inversion
will preclude thunderstorms ahead of the front, and that the primary
risk will be elevated storms that form atop the cooler/stable
near-surface air mass. A few of these storms may produce hail, but
the overall severe risk appears quite marginal.
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