Click-to-scroll-up Image
Skip Navigation Links 
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 is the U.S. Government's official Web portal to all Federal, state and local government Web resources and services.

Mesoscale Discussion 955
< Previous MD         Next MD >
MD 955 graphic

   Mesoscale Discussion 0955
   NWS Storm Prediction Center Norman OK
   0141 AM CDT Sun May 29 2022

   Areas affected...Eastern SD...Extreme Southeast ND

   Concerning...Severe Thunderstorm Watch 284...

   Valid 290641Z - 290815Z

   The severe weather threat for Severe Thunderstorm Watch 284

   SUMMARY...The threat for isolated strong wind gusts and hail

   DISCUSSION...Regional radar imagery shows an arc of elevated
   thunderstorms from near ABR southeastward to about 20 miles east of
   HON. A well-defined outflow boundary precedes these storms, with a
   44 kt gust recently reported at HON and a 31 kt gust reported
   farther south at MHE. The expectation is for this line to continue
   northeastward into the warm frontal zone extending from far
   northeast SD southeastward across southern MN. Despite the elevated
   character of this line, the relatively dry sub-cloud layer could
   still support a few stronger gusts, although the gust potential
   decreases with northeastward extent. Additionally, steep mid-level
   lapse rates will support the potential for isolated hail as well.
   The overall severe potential is expected to remain isolated, and an
   additional downstream watch is not currently anticipated.

   Farther south in far south-central SD, elevated storms have recently
   strengthened, potentially as a result of slightly stronger warm-air
   advection. Steep mid-level lapse rates will continue to support the
   potential for large hail with these storms.

   ..Mosier.. 05/29/2022

   ...Please see for graphic product...


   LAT...LON   44769883 45679839 46209756 46059668 45429662 43039784
               43189945 44769883 

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.
Page last modified: January 01, 1970
Information Quality
Privacy Policy
Freedom of Information Act (FOIA)
About Us
Career Opportunities