Click-to-scroll-up Image
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 1695
< Previous MD         Next MD >
MD 1695 graphic

   Mesoscale Discussion 1695
   NWS Storm Prediction Center Norman OK
   0558 PM CDT Thu Aug 18 2022

   Areas affected...southern and eastern Nebraska into far southeastern
   South Dakota and western Iowa

   Concerning...Severe Thunderstorm Watch 520...

   Valid 182258Z - 190100Z

   The severe weather threat for Severe Thunderstorm Watch 520
   continues.

   SUMMARY...Severe-weather risk continues with isolated storms moving
   eastward/southeastward in and near WW 520.

   DISCUSSION...Latest radar loop shows isolated intense updrafts along
   a surface front now draped from far southwestern Minnesota to
   south-central Nebraska.  Ahead of this boundary, a corridor of
   moderate instability (mixed-layer CAPE averaging 1000 to 2000 J/kg)
   will continue to fuel isolated storms, with updraft organization
   aided by veering/increasing flow with height yielding favorable
   shear (in excess of 40 kt in the 0-6km layer).  The most intense of
   these storms will remain capable of producing hail greater than
   golf-ball size, and wind gusts above 50 kt.

   ..Goss.. 08/18/2022

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

   ATTN...WFO...MPX...DMX...FSD...OAX...GID...LBF...

   LAT...LON   40700015 41029874 41719757 42749666 43769611 43859483
               43299485 41829594 40479787 40299950 40700015 

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: August 19, 2022
Disclaimer
Information Quality
Help
Glossary
Privacy Policy
Freedom of Information Act (FOIA)
About Us
Career Opportunities