SPC 0730Z Day 3 Outlook

Day 3 Outlook Image

Day 3 Convective Outlook  
NWS Storm Prediction Center Norman OK
0211 AM CDT Sun Oct 25 2020

Valid 271200Z - 281200Z

...NO SEVERE THUNDERSTORM AREAS FORECAST...

...SUMMARY...
Severe thunderstorms are not currently forecast across the
contiguous United States on Tuesday.

...Synopsis...
A closed mid-level low will migrate slowly eastward from southern AZ
to far west TX during the day 3 period.  In the low levels, a cold
front draped from deep south TX northeast along the TX coast and
into the LA, will feature an unseasonably cool airmass to its
northwest over the central and southern Great Plains.  A developing
tropical cyclone is forecast to move into the central Gulf of Mexico
during the day.  As the tropical cyclone gradually approaches the
mouth of the MS River (see the latest National Hurricane Center
forecasts for the expected track and timing information), a maritime
tropical airmass will slowly advance northward in the lower MS
Valley.  The gradually destabilizing airmass over the Gulf coastal
plain will become more favorable for isolated thunderstorms to
develop on the outer periphery of the tropical cyclone.  The
expected strengthening of the wind field that would support a
conditional risk for rotating storms near the mouth of the MS River,
will probably not occur until after dawn Wednesday.

..Smith.. 10/25/2020

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