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 934
< Previous MD         Next MD >
MD 934 graphic

   MESOSCALE DISCUSSION 0934
   NWS STORM PREDICTION CENTER NORMAN OK
   1017 PM CDT MON JUN 09 2014

   AREAS AFFECTED...PARTS OF AL...TN...NWRN GA

   CONCERNING...SEVERE THUNDERSTORM WATCH 270...272...

   VALID 100317Z - 100445Z

   THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH
   270...272...CONTINUES.

   SUMMARY...STRONG WIND GUSTS PRODUCING TREE DAMAGE SHOULD GRADUALLY
   SUBSIDE ALONG A BULGING QLCS EVOLVING EWD ACROSS THE TN VALLEY
   TOWARDS THE SRN APPALACHIANS.

   DISCUSSION...5-9 KM MSL CAPPI REFLECTIVITY HAVE SAMPLED GRADUALLY
   DIMINISHING VALUES ALONG THE QLCS THAT ARCS FROM MIDDLE TN TO
   N-CNTRL AND W-CNTRL AL. THIS WEAKENING TREND HAS BEEN MOST
   PRONOUNCED ACROSS THE NRN PORTION OF THE LINE WHICH APPEARS TO BE
   DRIVEN PURELY ON MOMENTUM WITHIN A MORE STABLE THERMODYNAMIC
   ENVIRONMENT PER 00Z BNA RAOB. THIS TREND HAS ALSO BEEN NOTED IN
   INBOUND VELOCITIES WITH SURFACE WIND GUSTS LIKELY TO HOLD AOB 40
   KT...BUT STILL CAPABLE OF TREE DAMAGE.

   FARTHER S...DEEPER /ALBEIT WEAKENING/ UPDRAFTS HAVE BEEN SUSTAINED
   NEAR/SW OF BHM. WITHIN A RESIDUAL WARMER AIR MASS /CHARACTERIZED BY
   SURFACE TEMPERATURES STILL IN THE UPPER 70S/...CONVECTION HAS BEEN 
   ATTEMPTING TO FORM JUST AHEAD OF THE LINE ALONG A NW/SE-ORIENTED
   CONFLUENCE BAND AROUND 30 NE SEM. SPORADIC TREE DAMAGE AND EVEN
   MARGINAL HAIL MAY PERSIST FOR A FEW MORE HOURS DESPITE LESS
   FAVORABLE ORIENTATION TO THE DEEP-LAYER SWLY FLOW.

   ..GRAMS.. 06/10/2014


   ATTN...WFO...MRX...FFC...LMK...OHX...BMX...HUN...MOB...PAH...

   LAT...LON   32228766 33218689 34468638 35398641 36268737 36458759
               36688736 36708694 35848565 35458516 34918499 34138482
               33258528 32428606 31988676 31948720 32228766 

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: June 10, 2014
Disclaimer
Information Quality
Help
Glossary
Privacy Policy
Freedom of Information Act (FOIA)
About Us
Career Opportunities