Nov 24, 2021 1630 UTC Day 1 Convective Outlook
Updated: Wed Nov 24 16:31:01 UTC 2021 (20211124 1630Z Day 1 shapefile | 20211124 1630Z Day 1 KML)
Probabilistic to Categorical Outlook Conversion Table
Categorical Graphic
20211124 1630 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
20211124 1630 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
20211124 1630 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
20211124 1630 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 241631

   Day 1 Convective Outlook  
   NWS Storm Prediction Center Norman OK
   1031 AM CST Wed Nov 24 2021

   Valid 241630Z - 251200Z

   ...NO SEVERE THUNDERSTORM AREAS FORECAST...

   ...SUMMARY...
   Thunderstorms are possible this evening and overnight from parts of
   the southern Plains into the Ozarks and mid Mississippi Valley.

   ...East/southeast Texas and southern Plains/Ozarks...
   Influenced by amplifying belts of split westerlies, a
   southeastward-moving cold front will approach the region late
   tonight/early Thanksgiving morning. A relatively moist air mass
   preceding the front along with increasing forcing for ascent
   including frontal uplift will contribute to increasing thunderstorm
   coverage from late-evening onward, initially across eastern Oklahoma
   and north Texas including the DFW Metroplex vicinity, and
   subsequently broader parts of the Ozarks/ArkLaTex and east/southeast
   Texas overnight.

   It is possible that a few stronger/more organized storms may
   materialize late tonight across a broad part of
   east-central/southeast Texas including the I-35/I-45 vicinities.
   This would be influenced by thunderstorms occurring immediately near
   the front and perhaps within a zone of pre-frontal confluence where
   boundary layer inhibition will be relatively weak. While sufficient,
   albeit modest, buoyancy and moderately strong low-level/deep-layer
   shear could support some weak/transient supercells and other
   semi-organized storms capable of small hail/gusty winds, the
   potential for severe thunderstorms is currently expected to remain
   low.

   ..Guyer/Gleason.. 11/24/2021

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   NOTE: THE NEXT DAY 1 OUTLOOK IS SCHEDULED BY 2000Z