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 1000
< Previous MD         Next MD >
MD 1000 graphic

   Mesoscale Discussion 1000
   NWS Storm Prediction Center Norman OK
   0343 PM CDT Thu Jun 25 2020

   Areas affected...southeast Louisiana through southern Mississippi

   Concerning...Severe potential...Watch unlikely 

   Valid 252043Z - 252145Z

   Probability of Watch Issuance...20 percent

   SUMMARY...Line of thunderstorms will likely persist and remain
   capable of a few strong to damaging gusts next couple hours.

   DISCUSSION...Line of storms from extreme southwest MS into southeast
   LA is moving northeast at 35-40 kt. These storms are developing
   along an outflow boundary that is surging northeast. The downstream
   atmosphere is weakly capped and moderately unstable with MLCAPE from
   2500-3000 J/kg. This suggests storms will persist as a forward
   propagating MCS next few hours. While vertical shear is weak, VWP
   data show mid-level 30-40 kt winds oriented perpendicular to the
   line which will help to maintain forward propagation into the
   unstable warm sector and the threat for a few locally strong to
   damaging gusts should persist next couple hours. Radar and satellite
   data show an outflow boundary and clouds left from earlier
   convection farther north across central MS, and the squall line
   should eventually merge with this boundary within another hour or
   so. Storms may briefly intensify further during the boundary
   mergers, followed by a decrease in organization and intensity.

   ..Dial/Thompson.. 06/25/2020

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

   ATTN...WFO...MOB...JAN...LIX...

   LAT...LON   30339008 30949050 31539095 32199043 32198933 31128898
               30218938 30339008 

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