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 211
< Previous MD         Next MD >
MD 211 graphic
   
   MESOSCALE DISCUSSION 0211
   NWS STORM PREDICTION CENTER NORMAN OK
   1205 PM CST FRI MAR 02 2012
   
   AREAS AFFECTED...SRN IL...SRN IND...WRN AND CNTRL KY
   
   CONCERNING...TORNADO WATCH 57...
   
   VALID 021805Z - 021930Z
   
   THE SEVERE WEATHER THREAT FOR TORNADO WATCH 57 CONTINUES.
   
   LONG LIVED SUPERCELLS WILL BEGIN OVERSPREADING A LARGE PORTION OF
   THE LOWER OHIO VALLEY BETWEEN NOW AND 20-21Z...ACCOMPANIED BY THE
   POTENTIAL FOR STRONG/DESTRUCTIVE TORNADOES AND VERY LARGE HAIL. 
   ADDITIONAL WWS ARE IN THE PROCESS OF BEING ISSUED AND WILL LIKELY BE
   NEEDED WITHIN THE NEXT HOUR OR TWO.
   
   DISCRETE SUPERCELLS HAVE FORMED ACROSS SOUTHERN ILLINOIS INTO
   SOUTHEAST MISSOURI...GENERALLY NEAR A DEVELOPING DRY LINE AND JUST
   AHEAD OF THE SURFACE COLD FRONT...WHICH WILL CONTINUE OVERTAKING THE
   DRY LINE ACROSS THE LOWER OHIO VALLEY DURING THE NEXT FEW HOURS. 
   ADDITIONAL CELLS STILL APPEAR LIKELY TO FORM AHEAD OF THE EASTWARD
   ADVANCING FRONT...INITIATING ALONG THE PRE-FRONTAL DRY LINE
   STRUCTURE ACROSS PARTS OF WESTERN AND CENTRAL KENTUCKY INTO WESTERN
   AND MIDDLE TENNESSEE THROUGH 20-21Z.  IN THE PRESENCE OF STRONG
   SHEAR...WITH LARGE CLOCKWISE CURVED LOW-LEVEL HODOGRAPHS...AND
   MODERATELY LARGE CAPE...CONDITIONS APPEAR VERY FAVORABLE FOR
   SUPERCELLS CAPABLE OF PRODUCING TORNADOES...SOME PARTICULARLY STRONG
   AND POTENTIALLY VERY DESTRUCTIVE.  GIVEN THE STRENGTH OF THE
   WESTERLY DEEP LAYER MEAN FLOW /50-60+ KT/...AND THE CONTINUING
   EASTWARD ADVECTION OF THE UNSTABLE  WARM SECTOR THROUGH THE LOWER
   OHIO VALLEY...STORMS WILL BE FAST MOVING AND LONG-LIVED.
   
   ..KERR.. 03/02/2012
   
   
   ATTN...WFO...ILN...LMK...OHX...IND...PAH...ILX...MEG...
   
   LAT...LON   37878887 38568777 39778560 38988407 37758450 36158607
               35158758 35128922 35448973 36598911 37878887 
   
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: March 02, 2012
Disclaimer
Information Quality
Help
Glossary
Privacy Policy
Freedom of Information Act (FOIA)
About Us
Career Opportunities