Feb 28, 2018 0830 UTC Day 3 Severe Thunderstorm Outlook
Updated: Wed Feb 28 08:26:09 UTC 2018 (20180228 0830Z Day 3 shapefile | 20180228 0830Z Day 3 KML)
Probabilistic to Categorical Outlook Conversion Table
Categorical Graphic
20180228 0830 UTC Day 3 Outlook Graphic
Day 3 Risk Area (sq. mi.) Area Pop. Some Larger Population Centers in Risk Area
No Risk Areas Forecast
Probabilistic Graphic
20180228 0830 UTC Day Probabilitic Graphic
Probability of severe weather within 25 miles of a point.
Hatched Area: 10% or greater probability of significant severe within 25 miles of a point.
Day 3 Prob. Risk Area (sq. mi.) Area Pop. Some Larger Population Centers in Risk Area
No Risk Areas Forecast
   SPC AC 280826

   Day 3 Convective Outlook  
   NWS Storm Prediction Center Norman OK
   0226 AM CST Wed Feb 28 2018

   Valid 021200Z - 031200Z

   ...NO SEVERE THUNDERSTORM AREAS FORECAST...

   ...SUMMARY...
   Thunderstorms will be possible along the West Coast on Friday.

   ...DISCUSSION...
   An upper-level ridge is forecast to move across the central U.S. on
   Friday as a cold front moves southward into the Gulf of Mexico and
   across the Florida Peninsula. Surface high pressure will be dominant
   over the eastern half of the nation. Along the West Coast, an
   upper-level trough will approach western California on Friday.
   Strong large-scale ascent and steep mid-level lapse rates associated
   with the upper-level trough should be enough for some lightning
   strikes in western Oregon and along the California coast from San
   Francisco northward.

   ..Broyles.. 02/28/2018

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   NOTE: THE NEXT DAY 3 OUTLOOK IS SCHEDULED BY 0830Z