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 322
< Previous MD         Next MD >
MD 322 graphic

   MESOSCALE DISCUSSION 0322
   NWS STORM PREDICTION CENTER NORMAN OK
   0623 PM CDT THU APR 16 2015

   AREAS AFFECTED...PORTIONS OF SRN/CENTRAL INTO ERN KS

   CONCERNING...SEVERE THUNDERSTORM WATCH 61...

   VALID 162323Z - 170100Z

   THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 61
   CONTINUES.

   SUMMARY...STRONG TO SEVERE STORMS WILL CONTINUE TO AFFECT WW 61. 
   THE STRONGER STORMS WITHIN THE ERN PART OF THIS WATCH MAY SHIFT
   N/NEWD EXITING THE CURRENT WATCH...WITH SOME CONSIDERATION FOR THE
   ADDITION OF NEW COUNTIES TO WW 61 AND/OR THE ISSUANCE OF A NEW WW.

   DISCUSSION...LATE AFTERNOON/EARLY EVENING TRENDS IN MOSAIC RADAR
   IMAGERY INDICATED THE STRONGER...MORE PERSISTENT...STORMS HAD
   GENERALLY BECOME CONFINED TO THE SRN AND ERN EXTENT OF WW 61.  THIS
   ACTIVITY WAS DEVELOPING NEAR AND NORTH OF A COMPOSITE CONVECTIVE
   OUTFLOW BOUNDARY ATTENDANT TO A CLUSTER OF STORMS EXTENDING FROM
   KINGMAN TO MCPHERSON COUNTIES.  AT 23Z...THE SSEWD-MOVING OUTFLOW
   BOUNDARY EXTENDED FROM BARBER COUNTY ENEWD THROUGH NWRN HARPER
   COUNTY TO ERN KINGMAN...NWRN SEDGWICK TO HARVEY COUNTIES.  A
   PERSISTENT INFLUX OF MODERATE INSTABILITY PER SSELY LOW-LEVEL WINDS
   INTO THIS BOUNDARY IS EXPECTED TO MAINTAIN NEW TSTM DEVELOPMENT IN
   THIS REGION OF WW 61.  EFFECTIVE BULK SHEAR OF 30-40 KT IS PRESENT
   ACROSS WW 61...WHICH IS SUFFICIENT FOR ORGANIZED STRONG TO SEVERE
   STORMS.  ALTHOUGH STORMS WILL SHIFT SLOWLY N/NEWD AND EXIT WW
   61...EFFECTIVE BULK SHEAR IS EXPECTED TO REMAIN WEAKER WITH ERN
   EXTENT...SUCH THAT A NEW WW MAY NOT BE REQUIRED.

   OBJECTIVE ANALYSES INDICATED SOME STABILIZATION HAS OCCURRED ACROSS
   THE WRN PORTION OF WW 61 IN THE WAKE OF EARLY STORMS.  HOWEVER...
   THERE HAS BEEN A NWD MOVEMENT OF STORMS FROM NWRN OK INTO COMANCHE
   AND BARBER COUNTIES KS WHERE THE ENVIRONMENT REMAINS MODERATELY
   UNSTABLE AND SUFFICIENTLY SHEARED FOR ORGANIZED STORMS IN THE
   SHORT-TERM.

   ..PETERS.. 04/16/2015


   ATTN...WFO...TOP...ICT...OUN...DDC...

   LAT...LON   37050096 38619902 38679896 38959749 39269663 39289612
               38949577 38339573 37869679 37049713 36939849 37050096 

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: April 17, 2015
Disclaimer
Information Quality
Help
Glossary
Privacy Policy
Freedom of Information Act (FOIA)
About Us
Career Opportunities