SPC 1300Z Day 1 Outlook

Day 1 Outlook Image

Day 1 Convective Outlook  
NWS Storm Prediction Center Norman OK
0755 AM CDT Fri Oct 09 2020

Valid 091300Z - 101200Z

...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS ACROSS SOUTHERN
PORTIONS OF LOUISIANA/MISSISSIPPI...

...SUMMARY...
A few tornadoes are possible across southern portions of Louisiana
and Mississippi today and tonight.

...Gulf Coast including southern Louisiana/southern Mississippi...
Hurricane Delta, which is currently over the northwest Gulf of
Mexico south of the Louisiana/Texas border, is expected to continue
generally north-northeastward today and move inland across Louisiana
this evening. Reference the National Hurricane Center for the latest
details.

Given these expectations for Delta, some possible diurnal
increase/spatial expansion of Delta-peripheral convection and its
gradual approach toward the coast should lead to an increase in
supercell/tornado potential, particularly this afternoon through
early/mid-evening. Moisture-rich mid 70s F surface dewpoints will
become increasing prevalent later today inland across
south-central/southeast Louisiana and far southern Mississippi in
conjunction with the strongest core of low/mid-tropospheric winds on
the eastern periphery of Delta. This sub-regional area is expected
to have the highest probability for a few tornadoes this afternoon
and evening, although a tornado risk cannot be ruled out into the
overnight.

Farther east, some potential for transient supercells and a brief
tornado and/or convectively enhanced wind potential may exist as far
east as southern Alabama and possibly the Florida Panhandle,
particularly in vicinity of the warm front this afternoon through
early/mid-evening.

..Guyer.. 10/09/2020

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