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 484
< Previous MD         Next MD >
MD 484 graphic

   Mesoscale Discussion 0484
   NWS Storm Prediction Center Norman OK
   0400 PM CDT Mon May 21 2018

   Areas affected...Southeast Wyoming...northeast Colorado...and a
   small portion of southwest Nebraska panhandle

   Concerning...Severe potential...Watch unlikely 

   Valid 212100Z - 212300Z

   Probability of Watch Issuance...20 percent

   SUMMARY...An isolated severe hail and wind threat will exist into
   early evening.

   DISCUSSION...Visible satellite imagery at 2345Z shows a few cells
   initiating over the the higher terrain of southeast Wyoming and
   northeast Colorado. MLCAPE values around 1000-1500 J/kg and
   effective bulk shear of 30-35 kts will support an isolated severe
   hail and wind threat. However, with the upper-level ridge axis over
   the area and modest height rises over the past few hours, the
   overall coverage of storms should remain isolated and not warrant a
   WW issuance.

   ..Wendt/Weiss.. 05/21/2018

   ...Please see for graphic product...


   LAT...LON   43090531 43250424 42030388 41040278 39830220 39010268
               39330368 39590483 40910539 41980562 43090531 

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: May 21, 2018
Information Quality
Privacy Policy
Freedom of Information Act (FOIA)
About Us
Career Opportunities