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
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
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 200023
Day 1 Convective Outlook
NWS Storm Prediction Center Norman OK
0623 PM CST Sun Dec 19 2021
Valid 200100Z - 201200Z
...NO THUNDERSTORM AREAS FORECAST...
...SUMMARY...
Severe thunderstorms are not expected through tonight.
...Synopsis...
A surface cold front continues to drift southward across far
southern TX into the Gulf of Mexico and the FL Peninsula while
mid-level troughs move across TX and the East Coast through the
remainder of this evening. A cool, stable low-level airmass will
persist across much of the CONUS while buoyancy and deep-layer
ascent wanes across southern TX and FL. While a couple lightning
flashes may occur with remnant weak convection in TX/FL, confidence
in adequate flash coverage warranting highlights is too low to
maintain any general thunderstorm areas.
..Squitieri.. 12/20/2021
CLICK TO GET WUUS01 PTSDY1 PRODUCT
NOTE: THE NEXT DAY 1 OUTLOOK IS SCHEDULED BY 0600Z
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