Dec 2, 2021 2000 UTC Day 1 Convective Outlook
Updated: Thu Dec 2 19:42:48 UTC 2021 (20211202 2000Z Day 1 shapefile | 20211202 2000Z Day 1 KML)
Probabilistic to Categorical Outlook Conversion Table
Categorical Graphic
20211202 2000 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
20211202 2000 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
20211202 2000 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
20211202 2000 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 021942

   Day 1 Convective Outlook  
   NWS Storm Prediction Center Norman OK
   0142 PM CST Thu Dec 02 2021

   Valid 022000Z - 031200Z

   ...NO SEVERE THUNDERSTORM AREAS FORECAST...

   ...SUMMARY...
   Very isolated thunderstorms may brush the Texas Big Bend this
   evening.

   ...20z Update...

   The previous outlook remains on track and changes are unnecessary
   with the 20z update. Generally quiescent weather conditions will
   encompass much of the CONUS the remainder of the period, while a few
   thunderstorms will be possible near the TX Big Bend this evening.

   ..Leitman.. 12/02/2021

   .PREV DISCUSSION... /ISSUED 1015 AM CST Thu Dec 02 2021/

   ...TX Big Bend...
   Scattered convection that can be sustained across parts of Chihuahua
   during the late afternoon and early evening may brush the
   international border area as it weakens through the evening. While
   surface-based parcels are expected to be capped with plentiful MLCIN
   in southwest TX, weak moist advection near 700 mb may yield meager
   elevated buoyancy within the steep lapse rate environment. The lack
   of stronger forcing for ascent suggests thunderstorm probabilities
   are only around 10 percent.

   CLICK TO GET WUUS01 PTSDY1 PRODUCT

   NOTE: THE NEXT DAY 1 OUTLOOK IS SCHEDULED BY 0100Z