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 521
< Previous MD         Next MD >
MD 521 graphic

   MESOSCALE DISCUSSION 0521
   NWS STORM PREDICTION CENTER NORMAN OK
   0525 PM CDT WED MAY 06 2015

   AREAS AFFECTED...OK/WRN N TX

   CONCERNING...TORNADO WATCH 133...

   VALID 062225Z - 070030Z

   THE SEVERE WEATHER THREAT FOR TORNADO WATCH 133 CONTINUES.

   SUMMARY...SEVERE/TORNADO RISK PERSISTS ACROSS THE WW AREA...WHERE
   SEVERAL SUPERCELLS ARE ONGOING ATTM.

   DISCUSSION...SEVERAL SUPERCELLS ARE ONGOING ATTM FROM CENTRAL KS SWD
   ACROSS WRN OK AND INTO WRN N TX...WITH STORMS INITIATING NEAR AND E
   OF A WEAK DRYLINE EXTENDING FROM W CENTRAL KS ACROSS WRN OK INTO THE
   TX SOUTH PLAINS.

   ENVIRONMENT AHEAD OF THE DRYLINE HAS BECOME MODERATELY UNSTABLE
   /MIXED-LAYER CAPE 1500 TO 2500 J/KG/...AS HEATING OF AN INCREASINGLY
   MOIST /MID 60S TO NEAR 70 DEWPOINTS/ BOUNDARY LAYER HAS OCCURRED
   THIS AFTERNOON.  THIS CONTINUES TO FUEL AN INCREASE IN BOTH STORM
   COVERAGE AND INTENSITY -- AIDED BY VERY FAVORABLY VEERING FLOW WITH
   HEIGHT AS WINDS SHIFT FROM SSELY AT THE SURFACE TO WSWLY AT MID
   LEVELS.

   WHILE SEVERAL SEVERE STORMS ARE ONGOING...ONE LARGE STORM W OF OUN
   /NORMAN OK/ HAS BECOME PARTICULARLY INTENSE -- WITH MULTIPLE
   TORNADOES REPORTED WITH THIS STORM RECENTLY.  THE STORM HAS BEEN
   MOVING SLOWLY WITH CONTINUED UPDRAFT REGENERATION ON ITS WRN
   FLANK...BUT ATTM IT APPEARS THAT THE STORM SHOULD AFFECT THE SRN OKC
   METRO AREA INCLUDING THE MOORE/NORMAN VICINITY IN THE NEXT HOUR OR
   SO.

   ..GOSS.. 05/06/2015


   ATTN...WFO...ICT...FWD...OUN...SJT...

   LAT...LON   32579994 33549991 36739941 37089782 36189697 34839695
               32509768 32579994 

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: May 07, 2015
Disclaimer
Information Quality
Help
Glossary
Privacy Policy
Freedom of Information Act (FOIA)
About Us
Career Opportunities