Dec 6, 2021 1730 UTC Day 2 Convective Outlook
Updated: Mon Dec 6 17:06:37 UTC 2021 (20211206 1730Z Day 2 shapefile | 20211206 1730Z Day 2 KML)
Probabilistic to Categorical Outlook Conversion Table
Categorical Graphic
20211206 1730 UTC Day 2 Outlook Graphic
Day 2 Risk Area (sq. mi.) Area Pop. Some Larger Population Centers in Risk Area
No Risk Areas Forecast
Probabilistic Tornado Graphic
20211206 1730 UTC Day 2 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 2 Tornado Risk Area (sq. mi.) Area Pop. Some Larger Population Centers in Risk Area
No Risk Areas Forecast
Probabilistic Damaging Wind Graphic
20211206 1730 UTC Day 2 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 2 Wind Risk Area (sq. mi.) Area Pop. Some Larger Population Centers in Risk Area
No Risk Areas Forecast
Probabilistic Large Hail Graphic
20211206 1730 UTC Day 2 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 2 Hail Risk Area (sq. mi.) Area Pop. Some Larger Population Centers in Risk Area
No Risk Areas Forecast
   SPC AC 061706

   Day 2 Convective Outlook  
   NWS Storm Prediction Center Norman OK
   1106 AM CST Mon Dec 06 2021

   Valid 071200Z - 081200Z

   ...NO SEVERE THUNDERSTORM AREAS FORECAST...

   ...SUMMARY...
   Severe thunderstorms are not forecast across the contiguous United
   States on Tuesday.

   ...Synopsis...
   Broadly cyclonic flow aloft will be in place across much of the
   CONUS early Tuesday morning, with several shortwave troughs
   progressing through both the northern and southern streams. Some
   trend towards confluence of the separate streams is expected to
   occur across the eastern CONUS late in the period. Notable
   separation in streams will remain across the western CONUS, as an
   upper low develops off the southern CA coast and a fast-moving
   shortwave trough moves across the Pacific Northwest/British
   Columbia.

   At the surface, high pressure will cover much of the eastern CONUS
   by early Tuesday morning. This post-frontal high pressure will
   result in predominantly stable conditions throughout most of the
   period. The only exception will be within the broad warm-air
   advection that occurs ahead of shortwave trough moving across the TN
   Valley late Tuesday night/early Wednesday morning. As a shortwave
   progress eastward, showers and a few isolated thunderstorms may
   develop across the Southeast. Most of this activity will be too
   shallow to produce lightning, but a few embedded lightning flashes
   are possible with any deeper cores.

   ..Mosier.. 12/06/2021

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   NOTE: THE NEXT DAY 2 OUTLOOK IS SCHEDULED BY 0700Z