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 326
< Previous MD         Next MD >
MD 326 graphic

   MESOSCALE DISCUSSION 0326
   NWS STORM PREDICTION CENTER NORMAN OK
   0820 PM CDT THU APR 16 2015

   AREAS AFFECTED...PORTIONS OF THE MIDDLE TX COASTAL PLAIN AND
   VICINITY

   CONCERNING...SEVERE THUNDERSTORM WATCH 60...

   VALID 170120Z - 170245Z

   THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 60
   CONTINUES.

   SUMMARY...THE RISK FOR SVR TSTMS IS BECOMING CONFINED TO PORTIONS OF
   THE MIDDLE/UPPER TX COASTAL PLAIN AND VICINITY...AND IT IS POSSIBLE
   THAT A NEW WW MAY BE NEEDED INTO THE OVERNIGHT HOURS.

   DISCUSSION...CONVECTION WILL LIKELY PERSIST ON THE SRN FRINGES OF
   CONVECTIVELY PROCESSED AIR ACROSS PARTS OF ERN TX INTO THE OVERNIGHT
   HOURS...AS FORCING FOR ASCENT IN THE LEFT-EXIT REGION OF AN
   UPPER-LEVEL JET STREAK OVERLAYS FAVORABLY RICH DEEP MOISTURE. THE
   HGX VWP SAMPLES A LONG/LOOPING HODOGRAPH SUPPORTING AROUND 200 M2/S2
   OF 0-1-KM SRH. WITH ONLY MODEST DEEP FORCING FOR ASCENT...
   DISCRETE/SEMI-DISCRETE CONVECTIVE MODES WITH LARGE HAIL AND DMGG
   WINDS WILL BE OF CONCERN...AND SOME TORNADO RISK WILL EXIST. THE 00Z
   CRP SOUNDING SAMPLES THE STRONGLY UNSTABLE INFLOW AIR IN PLACE
   ACROSS PARTS OF SRN TX...WHICH WILL BOLSTER THE SVR RISK EVEN AS
   MLCINH GRADUALLY INCREASES TONIGHT.

   ..COHEN.. 04/17/2015


   ATTN...WFO...LCH...HGX...EWX...

   LAT...LON   28849551 29019661 29649651 30059588 30099570 30119454
               29949375 29469447 28849551 

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