Click-to-scroll-up Image
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 2042
< Previous MD         Next MD >
MD 2042 graphic

   Mesoscale Discussion 2042
   NWS Storm Prediction Center Norman OK
   1128 PM CST Wed Dec 14 2022

   Areas affected...far southeast AL...far southwest GA...FL Panhandle

   Concerning...Tornado Watch 589...

   Valid 150528Z - 150730Z

   The severe weather threat for Tornado Watch 589 continues.

   SUMMARY...An isolated risk for a tornado will probably continue into
   the overnight with stronger supercells.  The primary limiting
   factors for tornado potential may be weak low-level lapse rates and
   the mid-level disturbance over the MS Valley and associated strong
   forcing for ascent becoming increasingly displaced from the region. 
   Convective trends will be monitored for a possible small tornado
   watch located to the east of Tornado Watch 589.

   DISCUSSION...Radar mosaic shows a north-south zone of storms near
   Apalachicola and a squall line on the front over the western FL
   Panhandle extending southwest into the Gulf.  The airmass over the
   FL Panhandle is moist and marginally unstable 750-1000 J/kg MLCAPE
   according to the latest RAP soundings when modified for current
   surface conditions.  Despite adequately large low-level hodographs,
   water-vapor imagery suggests the strongest large-scale forcing for
   ascent is becoming increasingly displaced from the northeast Gulf
   Coast tonight.  Furthermore, the relatively weak surface to 1.5 km
   lapse rates are likely not favoring robust low-level updraft
   acceleration, and consequently stronger low-level mesocyclones,
   other than transient storm-scale rotation.  However, with these
   competing factors will probably maintain some risk for a tornado and
   localized damaging gusts into the overnight hours.

   ..Smith.. 12/15/2022

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

   ATTN...WFO...TAE...MOB...

   LAT...LON   30538652 31278544 31348476 30858421 30168405 29868446
               29628516 30088555 30378638 30538652 

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: December 15, 2022
Disclaimer
Information Quality
Help
Glossary
Privacy Policy
Freedom of Information Act (FOIA)
About Us
Career Opportunities