SPC 1730Z Day 2 Outlook

Day 2 Outlook Image

Day 2 Convective Outlook  
NWS Storm Prediction Center Norman OK
1112 AM CST Fri Feb 19 2021

Valid 201200Z - 211200Z


A few thunderstorms will be possible across a portion of the Great
Basin Saturday afternoon.

...Great Basin area...

Steepening lapse rates due to surface heating and cooling mid-level
temperatures (-25 to -30 C at 500 mb) associated with the approach
of a shortwave trough will contribute to weak instability (100-300
J/kg MLCAPE) Saturday afternoon. This environment along with modest
forcing for ascent will result in isolated showers, a few of which
might become capable of lightning flashes before diminishing during
the evening. Limited moisture and instability suggest coverage of
any thunderstorms should remain sparse.

..Dial.. 02/19/2021

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