Skip Navigation Links weather.gov 
NOAA logo-Select to go to the NOAA homepage NOAA's National Weather Service   Select to go to the NWS homepage
Storm Prediction Center
navigation bar left     navigation bar end cap


 
USA.gov is the U.S. Government's official Web portal to all Federal, state and local government Web resources and services.

Mesoscale Discussion 1816
< Previous MD         Next MD >
MD 1816 graphic

   Mesoscale Discussion 1816
   NWS Storm Prediction Center Norman OK
   0439 AM CST Thu Nov 26 2020

   Areas affected...Southeast Alabama/far western Georgia

   Concerning...Severe potential...Watch unlikely 

   Valid 261039Z - 261215Z

   Probability of Watch Issuance...5 percent

   SUMMARY...Strong storms with a localized severe risk may persist
   through the early morning hours across parts of southeast Alabama
   into far western Georgia. Localized wind damage and/or a brief
   tornado cannot be ruled out.

   DISCUSSION...Convection has persisted much of the overnight with a
   modest increase in intensity (evidenced by lightning
   flashes/radar-derived updraft intensity) of storms within a
   northeast/southwest-oriented corridor across southeast Alabama into
   west-central/north-central Georgia near/ahead of an
   east-southeastward advancing cold front. The strongest convection
   has generally paralleled I-85 in Alabama over the past couple of
   hours, where supercell characteristics have been observed including
   weak/transient rotation.

   Surface temperatures and dewpoints have tended to rise overnight,
   which is minimizing boundary layer inhibition. Latest Maxwell/MXX
   WSR-88D VWP data still indicates upwards of 40 kt of 0-6 km bulk
   shear, which will remain supportive of some supercell structures in
   conjunction with MLCAPE estimated to be on the order of 600-1000
   J/kg. Low-level shear will tend to gradually weaken through/beyond
   sunrise as winds in the lowest 1-2 km AGL continue to veer
   southwesterly and weaken. While the severe storm risk is expected to
   remain low, localized wind damage and/or a brief tornado cannot be
   entirely ruled out over the next few hours.

   ..Guyer.. 11/26/2020

   ...Please see www.spc.noaa.gov for graphic product...

   ATTN...WFO...FFC...TAE...BMX...

   LAT...LON   31948617 32408600 33378453 32958396 32468391 32238397
               31878444 31578525 31678596 31948617 

Top/All Mesoscale Discussions/Forecast Products/Home
Weather Topics:
Watches, Mesoscale Discussions, Outlooks, Fire Weather, All Products, Contact Us

NOAA / National Weather Service
National Centers for Environmental Prediction
Storm Prediction Center
120 David L. Boren Blvd.
Norman, OK 73072 U.S.A.
spc.feedback@noaa.gov
Page last modified: January 01, 1970
Disclaimer
Information Quality
Help
Glossary
Privacy Policy
Freedom of Information Act (FOIA)
About Us
Career Opportunities