SPC 0100Z Day 1 Outlook

Day 1 Outlook Image

Day 1 Convective Outlook  
NWS Storm Prediction Center Norman OK
0632 PM CST Mon Nov 02 2020

Valid 030100Z - 031200Z


Weak thunderstorm activity may persist across parts of the southern
Great Basin into the lower Colorado Valley tonight.

...01Z Outlook Update...
It is possible that there could be some diurnal component to ongoing
weak thunderstorm activity across the southern Great Basin. 
However, large-scale forcing for ascent (associated with weak warm
advection beneath difluent and divergent upper flow), downstream of
a broad, weak mid-level low migrating inland across southern
California, appears the primary support.  As elevated moist return
flow (near/above the 700 mb level) continues in a corridor across
the lower Colorado Valley into the southern Great Basin, this may
persist while spreading slowly northward this evening.  Overnight,
the mid-level low may become increasingly deformed while taking a
northeastward to eastward turn across the southern Sierra Nevada. 
But mid-level forcing for ascent associated with differential
cyclonic vorticity advection might still support additional weak
thunderstorm activity, southward into parts of the lower Colorado

..Kerr.. 11/03/2020

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