Nov 30, 2021 0600 UTC Day 1 Convective Outlook
Updated: Tue Nov 30 05:49:14 UTC 2021 (20211130 1200Z Day 1 shapefile | 20211130 1200Z Day 1 KML)
Probabilistic to Categorical Outlook Conversion Table
Categorical Graphic
20211130 1200 UTC Day 1 Outlook Graphic
Day 1 Risk Area (sq. mi.) Area Pop. Some Larger Population Centers in Risk Area
No Risk Areas Forecast
Probabilistic Tornado Graphic
20211130 1200 UTC Day 1 Tornado Probabilities Graphic
Probability of a tornado within 25 miles of a point.
Hatched Area: 10% or greater probability of EF2 - EF5 tornadoes within 25 miles of a point.
Day 1 Tornado Risk Area (sq. mi.) Area Pop. Some Larger Population Centers in Risk Area
No Risk Areas Forecast
Probabilistic Damaging Wind Graphic
20211130 1200 UTC Day 1 Damaging Wind Probabilities Graphic
Probability of damaging thunderstorm winds or wind gusts of 50 knots or higher within 25 miles of a point.
Hatched Area: 10% of greater probability of wind gusts 65 knots or greater within 25 miles of a point.
Day 1 Wind Risk Area (sq. mi.) Area Pop. Some Larger Population Centers in Risk Area
No Risk Areas Forecast
Probabilistic Large Hail Graphic
20211130 1200 UTC Day 1 Large Hail Probabilities Graphic
Probability of hail 1" or larger within 25 miles of a point.
Hatched Area: 10% or greater probability of hail 2" or larger within 25 miles of a point.
Day 1 Hail Risk Area (sq. mi.) Area Pop. Some Larger Population Centers in Risk Area
No Risk Areas Forecast
   SPC AC 300549

   Day 1 Convective Outlook  
   NWS Storm Prediction Center Norman OK
   1149 PM CST Mon Nov 29 2021

   Valid 301200Z - 011200Z

   ...NO THUNDERSTORM AREAS FORECAST...

   ...SUMMARY...
   Thunderstorm development is not expected across the contiguous
   United States today and tonight.

   ...DISCUSSION...
   At mid-levels, northwest flow will be in place across most of the
   continental United States today. At the surface, high pressure will
   remain in place today across the Gulf Coast and southern Seaboard.
   This will keep a dry and cool airmass over much of the central and
   eastern United States, which will make thunderstorm development
   unlikely across the nation through tonight.

   ..Broyles/Moore.. 11/30/2021

   CLICK TO GET WUUS01 PTSDY1 PRODUCT

   NOTE: THE NEXT DAY 1 OUTLOOK IS SCHEDULED BY 1300Z