SPC 1200Z Day 1 Outlook

Day 1 Outlook Image

Day 1 Convective Outlook  
NWS Storm Prediction Center Norman OK
1150 PM CDT Sat Oct 03 2020

Valid 041200Z - 051200Z


Severe thunderstorms are not expected across the U.S. through

In the mid-levels, a large-scale ridge will continue to build across
the western CONUS as a trough continues to move across the eastern
U.S. Deep-layer subsidence will prevail across much of the CONUS
west of the trough axis, limiting convective potential. Elsewhere
across the eastern U.S, deep-moist convection is expected to be
largely inhibited by a cool, stable low-level air mass. One
exception may be portions of the Ohio Valley during the late
afternoon/early evening, where deep-layer ascent and marginal
low-level buoyancy immediately ahead of the trough axis may support
low-topped convection. A couple of lightning flashes cannot be
completely ruled out. A couple of flashes may also occur within a
warm-air advection regime across the Florida Peninsula and along the
shoreline of the Carolinas through the period.

..Squitieri.. 10/04/2020

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