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 1767
< Previous MD         Next MD >
MD 1767 graphic

   MESOSCALE DISCUSSION 1767
   NWS STORM PREDICTION CENTER NORMAN OK
   1134 PM CDT FRI SEP 26 2014

   AREAS AFFECTED...SRN NV...SWRN UT...NWRN AZ

   CONCERNING...SEVERE POTENTIAL...WATCH UNLIKELY 

   VALID 270434Z - 270700Z

   PROBABILITY OF WATCH ISSUANCE...20 PERCENT

   SUMMARY...STORMS SHOULD PERSIST THROUGH THE NIGHT...WITH ISOLATED
   SEVERE HAIL OR WIND ALONG WITH VERY HEAVY RAIN.

   DISCUSSION...STORMS CONTINUE TO REGENERATE THIS EVENING AS FLOW
   ALOFT IS MERIDIONAL AND ALIGNED WITH THE LOW-LEVEL
   MOISTURE/INSTABILITY PLUME. IN ADDITION TO LOCALIZED LIFT DUE TO SLY
   UPSLOPE FLOW IN FAVORED AREAS...LARGE-SCALE SUPPORT FOR ASCENT WILL
   INCREASE TONIGHT AS THE UPPER TROUGH NEARS...WITH MOST GUIDANCE
   SUGGESTING AN INCREASE BY 09Z MAINLY OVER NWRN AZ AND SWRN UT BUT
   PERHAPS NEAR THE NV BORDER AS WELL.

   WHILE MOST OF THE STORMS ARE ELONGATED DUE TO THE SHEAR...THIS MAY
   HELP A FEW CORES TO BE LONGER-LIVED WITH A THREAT OF HAIL. ANY SMALL
   BOWS THAT MAY DEVELOP COULD CONTAIN STRONG WINDS AS DOWNDRAFTS WILL
   CONTAIN A LOT OF PRECIPITATION.

   AS STORMS CONTINUE TO TRAIN OVER THE SAME AREAS...FLASH FLOODING MAY
   BECOME A CONCERN...ESPECIALLY IF THE SLOW-MOVING NORTH/SOUTH
   ORIENTED BAND OF STORMS SUGGESTED BY THE CONVECTION-ALLOWING MODELS
   VERIFIES.

   ..JEWELL/THOMPSON.. 09/27/2014


   ATTN...WFO...FGZ...SLC...VEF...LKN...

   LAT...LON   36171288 34941269 34561279 34491322 34721429 34911509
               35331537 36111515 37341461 38241441 38721440 38871405
               38731366 38491341 37821298 37491291 36171288 

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: September 27, 2014
Disclaimer
Information Quality
Help
Glossary
Privacy Policy
Freedom of Information Act (FOIA)
About Us
Career Opportunities