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 1739
< Previous MD         Next MD >
MD 1739 graphic

   Mesoscale Discussion 1739
   NWS Storm Prediction Center Norman OK
   0358 PM CDT Mon Oct 23 2017

   Areas affected...portions of southern VA

   Concerning...Severe potential...Watch possible 

   Valid 232058Z - 232230Z

   Probability of Watch Issuance...40 percent

   SUMMARY...Severe threat may spread into portions of southern VA in
   the next 1-2 hours. Given a lack of stronger instability, confidence
   is low in convection maintaining organized severe threat. Trends
   will be monitored closely for possible watch issuance in the next
   hour or so.

   DISCUSSION...The bowing segment of line of convection moving east
   across western NC will continue to track northeast late this
   afternoon. Several severe and tornado reports have been associated
   with this convection across western NC and portions of Upstate SC.
   However, it is uncertain how far northeast severe potential will be
   maintained given very weak instability across southern VA where
   surface heating has not been as strong and surface dewpoints are
   lower than further to the southwest. That being said, strong deep
   layer shear profiles could support strong wind gusts and perhaps
   some rotating structures if the surging line can maintain
   organization. This area will be monitored closely for possible watch
   issuance by 22z.

   ..Leitman/Thompson.. 10/23/2017

   ...Please see www.spc.noaa.gov for graphic product...

   ATTN...WFO...AKQ...LWX...RAH...RNK...

   LAT...LON   36658100 36968095 37328055 37618000 37737970 37797937
               37667883 37407853 37017860 36647891 36477920 36528037
               36518072 36658100 

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: October 23, 2017
Disclaimer
Information Quality
Help
Glossary
Privacy Policy
Freedom of Information Act (FOIA)
About Us
Career Opportunities