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 42
< Previous MD         Next MD >
MD 42 graphic

   MESOSCALE DISCUSSION 0042
   NWS STORM PREDICTION CENTER NORMAN OK
   0156 AM CST FRI JAN 22 2016

   AREAS AFFECTED...SOUTHEAST AL/FL PANHANDLE/FAR SOUTHWEST GA

   CONCERNING...TORNADO WATCH 7...

   VALID 220756Z - 221000Z

   THE SEVERE WEATHER THREAT FOR TORNADO WATCH 7 CONTINUES.

   SUMMARY...THE RISK FOR LOCALLY DAMAGING WINDS/BRIEF TORNADO WILL
   CONTINUE OVERNIGHT ESPECIALLY ACROSS THE FL PANHANDLE BUT POSSIBLY
   ALSO PARTS OF EXTREME SOUTHEAST AL/FAR SOUTHWEST GA. TORNADO WATCH 7
   CONTINUES UNTIL 11Z/6AM EST.

   DISCUSSION...A NNE/SSW-ORIENTED SQUALL LINE WITH MULTIPLE EMBEDDED
   BOW ECHOES/MESOVORTICES CONTINUES TO MAKE A STEADY EASTWARD
   PROGRESSION ACROSS THE WESTERN FL PANHANDLE AND SOUTHEAST AL AS OF
   0730Z. MEASURED WIND GUSTS OVER THE PAST HOUR INCLUDE 50 KT AT
   WHITING FIELD NAS /KNSE/ AND 63 KT AT PENSACOLA NAS. RELATED TO THE
   AMPLIFYING UPPER-LEVEL TROUGH OVER THE LOWER MS RIVER
   VALLEY...FORCING FOR ASCENT WILL CONTINUE TO INCREASE WHILE
   DEEP-LAYER WINDS ACROSS THE REGION STEADILY STRENGTHEN AND BACK
   /SOUTH-SOUTHWESTERLY/ IN THE MID-LEVELS PER WSR-88D VWP TRENDS. 

   THIS SCENARIO WILL REMAIN FAVORABLE FOR A HIGHLY ORGANIZED SQUALL
   LINE WITH EMBEDDED BOWS/MESOVORTICES. HOWEVER...THE SQUALL LINE WILL
   TEND TO OUTPACE THE MAIN LOW-LEVEL MOIST INFLUX...AND MOVE INTO AN
   INCREASINGLY STABLE BOUNDARY LAYER AWAY FROM THE COAST. IN OTHER
   WORDS...A MORE MARGINAL THERMODYNAMIC ENVIRONMENT ACROSS SOUTHEAST
   AL/SOUTHWEST GA SHOULD KEEP THE OVERALL DAMAGING WIND/BRIEF TORNADO
   POTENTIAL IN THESE AREAS VERY LOCALIZED/MARGINAL. IN FACT...SURFACE
   DEWPOINTS ACROSS FAR SOUTHEAST AL/SOUTHWEST GA HAVE TENDED TO LOWER
   /LOWER 50S F/ OVER THE PAST 1-2 HOURS. THUS...THE RELATIVELY
   MAXIMIZED POTENTIAL FOR DAMAGING WINDS AND A TORNADO THROUGH THE
   EARLY MORNING HOURS WILL BE ACROSS THE FL PANHANDLE WITH THE SQUALL
   LINE AND RELATED BOWS/MESOVORTICES...AND ALSO WITH AN
   INLAND-DEVELOPING SUPERCELL OR TWO AHEAD OF THE LINE IN VICINITY OF
   A MARITIME WARM FRONT.

   ..GUYER.. 01/22/2016


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

   LAT...LON   30008692 30628652 31548606 31908571 31288494 30768428
               30108418 29448514 29718604 30008692 

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 22, 2016
Disclaimer
Information Quality
Help
Glossary
Privacy Policy
Freedom of Information Act (FOIA)
About Us
Career Opportunities