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 35
< Previous MD         Next MD >
MD 35 graphic

   MESOSCALE DISCUSSION 0035
   NWS STORM PREDICTION CENTER NORMAN OK
   0144 PM CST THU JAN 21 2016

   AREAS AFFECTED...LA...SW-SCNTRL MS

   CONCERNING...TORNADO WATCH 5...

   VALID 211944Z - 212145Z

   THE SEVERE WEATHER THREAT FOR TORNADO WATCH 5 CONTINUES.

   SUMMARY...A SEVERE THREAT WILL GRADUALLY SPREAD EWD ACROSS ERN LA
   AND INTO SCNTRL MS THIS AFTERNOON. TORNADOES...ISOLATED LARGE HAIL
   AND WIND DAMAGE WILL BE POSSIBLE WITH THE MORE INTENSE STORMS. WW
   ISSUANCE WILL LIKELY BE NEEDED TO THE EAST OF WW 5.

   DISCUSSION...THE LATEST RADAR TRENDS SHOW A CLUSTER OF ROTATING
   THUNDERSTORMS ALONG A PRE-FRONTAL CONFLUENCE ZONE IN WRN LA. STRONG
   THUNDERSTORMS ARE ALSO ONGOING ALONG A COLD FRONT IN FAR ERN TX.
   THIS ACTIVITY IS LOCATED VERY NEAR TO A SFC LOW WHICH WILL CONTINUE
   TO DEEPEN AND TRACK EWD ACROSS LA LATE THIS AFTERNOON. SFC WINDS IN
   THE NERN QUADRANT OF THE SFC LOW ARE BACKED TO THE EAST AND
   SOUTHEAST WHICH IS ENHANCING LOW-LEVEL SHEAR PROFILES. ALTHOUGH SFC
   WINDS ARE STARTING TO VEER TO THE SOUTH IN WRN LA...THE WSR-88D VWP
   AT POE WITHIN THE LAST HOUR HAS HAD 0-3 KM STORM RELATIVE HELICITIES
   NEAR 300 M2/S2. THIS SHOULD BE REPRESENTATIVE OF THE LOW-LEVEL SHEAR
   FURTHER TO THE EAST NEAR THE MS RIVER WHERE INSTABILITY HAS MARKEDLY
   INCREASED OVER THE NEXT 1 TO 2 HOURS. THIS ENVIRONMENT SHOULD
   CONTINUE TO SUPPORT ROTATING STORMS CAPABLE OF PRODUCING TORNADOES
   AND WIND DAMAGE. AN ISOLATED LARGE HAIL THREAT WILL ALSO EXIST WITH
   THE STRONGER UPDRAFTS.

   ..BROYLES/THOMPSON.. 01/21/2016


   ATTN...WFO...MOB...JAN...LIX...LCH...SHV...

   LAT...LON   32109281 31089323 30389343 30119328 29979268 29849144
               29988969 31208915 32068943 32299008 32109281 

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: January 21, 2016
Disclaimer
Information Quality
Help
Glossary
Privacy Policy
Freedom of Information Act (FOIA)
About Us
Career Opportunities