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.

Severe Thunderstorm Watch 387
< Previous WW         Next WW >
  | | | | | |  
WW0387 Radar
Hazard Tornadoes EF2+ Tornadoes
Likelihood Low Very Low
Severe Wind 65 kt+ Wind
Moderate Moderate
Severe Hail 2"+ Hail
Moderate Moderate

Note:  The expiration time in the watch graphic is amended if the watch is replaced, cancelled or extended.
Note: Click for Watch Status Reports.
   SEL7

   URGENT - IMMEDIATE BROADCAST REQUESTED
   Severe Thunderstorm Watch Number 387
   NWS Storm Prediction Center Norman OK
   405 PM MDT Sun Jul 19 2020

   The NWS Storm Prediction Center has issued a

   * Severe Thunderstorm Watch for portions of 
     Northeast Colorado
     Northwest Kansas
     Western Nebraska
     Southwest South Dakota
     Eastern Wyoming

   * Effective this Sunday afternoon and evening from 405 PM until
     1100 PM MDT.

   * Primary threats include...
     Scattered damaging winds and isolated significant gusts to 75
       mph possible
     Scattered large hail and isolated very large hail events to 2
       inches in diameter possible
     A tornado or two possible

   SUMMARY...Widely scattered storms will continue to intensify across
   the region, this includes some supercells capable of large hail,
   particularly across eastern Wyoming, southwest South Dakota and
   western Nebraska where deep-layer winds are strongest. Multiple
   east/southeastward-moving clusters may evolve by evening, with
   severe-caliber wind gusts also a possibility.

   The severe thunderstorm watch area is approximately along and 90
   statute miles east and west of a line from 70 miles east northeast
   of Gillette WY to 65 miles south of Imperial NE. For a complete
   depiction of the watch see the associated watch outline update
   (WOUS64 KWNS WOU7).

   PRECAUTIONARY/PREPAREDNESS ACTIONS...

   REMEMBER...A Severe Thunderstorm Watch means conditions are
   favorable for severe thunderstorms in and close to the watch area.
   Persons in these areas should be on the lookout for threatening
   weather conditions and listen for later statements and possible
   warnings. Severe thunderstorms can and occasionally do produce
   tornadoes.

   &&

   OTHER WATCH INFORMATION...CONTINUE...WW 385...WW 386...

   AVIATION...A few severe thunderstorms with hail surface and aloft to
   2 inches. Extreme turbulence and surface wind gusts to 65 knots. A
   few cumulonimbi with maximum tops to 550. Mean storm motion vector
   31020.

   ...Guyer
Top of Page/Status Messages for this watch/All Current Watches/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: January 01, 1970		 Disclaimer
Information Quality
Help
Glossary 		Privacy Policy
Freedom of Information Act (FOIA)
About Us
Career Opportunities