Dec 11, 2021 0830 UTC Day 3 Severe Thunderstorm Outlook
Updated: Sat Dec 11 07:26:17 UTC 2021 (20211211 0830Z Day 3 shapefile | 20211211 0830Z Day 3 KML)
Probabilistic to Categorical Outlook Conversion Table
Categorical Graphic
20211211 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
20211211 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 110726

   Day 3 Convective Outlook  
   NWS Storm Prediction Center Norman OK
   0126 AM CST Sat Dec 11 2021

   Valid 131200Z - 141200Z

   ...NO SEVERE THUNDERSTORM AREAS FORECAST...

   ...SUMMARY...
   Thunderstorm development will be possible across the Florida
   Peninsula on Monday, and across parts of the West Coast Monday into
   Monday night.

   ...DISCUSSION...
   Southwest mid-level flow will become established across the western
   U.S. on Monday as zonal flow remains over the eastern states. At the
   surface, a moist airmass will advect northward onto the Texas
   Coastal Plains. A moist airmass will also be in place across central
   and south Florida where isolated thunderstorm development will be
   possible during the afternoon. In the west, isolated lightning
   strikes will occur from the coast of central California northward
   into western Washington. No severe weather is expected Monday or
   Monday night across the continental United States.

   ..Broyles.. 12/11/2021

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