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 261602
Day 1 Convective Outlook
NWS Storm Prediction Center Norman OK
1002 AM CST Sun Dec 26 2021
Valid 261630Z - 271200Z
...NO SEVERE THUNDERSTORM AREAS FORECAST...
...SUMMARY...
Isolated thunderstorms are possible today over parts of the Pacific
Coast States, eastern Great Basin to central Rockies, and parts of
the Midwest.
...Pacific Northwest and Great Basin...
Strong onshore flow and cold temperatures aloft are present once
again today along the OR and northern CA coast. This will maintain
the risk of isolated lightning flashes through the forecast period
in this region. A few instances of lightning will also be possible
in snow showers ahead of a cold front surging eastward across parts
of UT/CO/WY.
...MS/OH Valleys...
Low-level warm advection and lift is expected to intensify late this
afternoon and early evening over parts of IA/MO/IL, resulting in
isolated showers and thunderstorms. The strongest cells in this
initial activity could produce small hail, but no severe storms are
anticipated. Scattered thunderstorms will likely persist through
the night and spread eastward into parts of IN/OH and Lower MI by
Monday morning.
..Hart/Squitieri.. 12/26/2021
CLICK TO GET WUUS01 PTSDY1 PRODUCT
NOTE: THE NEXT DAY 1 OUTLOOK IS SCHEDULED BY 2000Z
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