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 387
< Previous MD         Next MD >
MD 387 graphic

   MESOSCALE DISCUSSION 0387
   NWS STORM PREDICTION CENTER NORMAN OK
   0806 PM CDT SUN APR 19 2015

   AREAS AFFECTED...ERN NC

   CONCERNING...TORNADO WATCH 82...

   VALID 200106Z - 200200Z

   THE SEVERE WEATHER THREAT FOR TORNADO WATCH 82 CONTINUES.

   SUMMARY...OVERALL SEVERE RISK SHOULD CONTINUE TO DIMINISH WITH
   DOWNSTREAM WW ISSUANCE UNLIKELY. BUT LOW THREATS FOR DAMAGING WINDS
   AND A BRIEF TORNADO MAY PERSIST THROUGH THE REST OF THE EVENING
   WITHIN WW 82 AND ELSEWHERE IN ERN NC.

   DISCUSSION...OVERALL OBSERVATIONAL TRENDS DEPICT A WEAKENING
   REFLECTIVITY GRADIENT...DIMINISHING LIGHTNING...AND IR CLOUD TOP
   WARMING DURING THE PAST HOUR...INDICATIVE OF AN INCREASINGLY SHALLOW
   QLCS FROM ORANGE TO BLADEN COUNTIES. 00Z MHX/GSO RAOBS SAMPLED POOR
   TROPOSPHERIC LAPSE RATES WITH ONLY MEAGER BUOYANCY DESPITE PW VALUES
   AROUND 1.75 INCHES. 0-1 KM SHEAR HAS REMAINED AROUND 25 KT WHICH
   COULD STILL SUPPORT A NON-ZERO RISK FOR A BRIEF TORNADO AND
   LOCALIZED DAMAGING WINDS. BUT GIVEN THE OBSERVATIONAL TRENDS AND
   DEARTH OF INSTABILITY IN RAOBS...THESE RISKS APPEAR MARGINAL.

   ..GRAMS.. 04/20/2015


   ATTN...WFO...MHX...RAH...ILM...

   LAT...LON   35907909 36227890 36317833 36297778 35857740 35057720
               34547748 33867808 33787860 34867865 35907909 

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 20, 2015
Disclaimer
Information Quality
Help
Glossary
Privacy Policy
Freedom of Information Act (FOIA)
About Us
Career Opportunities