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 251625
Day 1 Convective Outlook
NWS Storm Prediction Center Norman OK
1025 AM CST Sat Dec 25 2021
Valid 251630Z - 261200Z
...NO SEVERE THUNDERSTORM AREAS FORECAST...
...SUMMARY...
Isolated thunderstorms will be possible along the Pacific Coast.
...West Coast...
Quiet convective weather is expected over most of the nation today,
with the exception of the West Coast. Strong onshore flow ahead of
an approaching upper trough will promote isolated thunderstorms in
coastal areas of WA/OR into northern and central CA. A few of the
thunderstorms may spread into the CA central valley this
afternoon/evening, where small hail may accompany the stronger
cells. No organized severe storms are anticipated.
...Ohio Valley...
Isolated thunderstorms have been occurring over the OH valley this
morning. This risk of further lightning flashes will diminish
rapidly early this afternoon as the associated shortwave trough
moves eastward and away from the region. Will leave a small area of
10% coverage for a few more hours.
..Hart/Goss.. 12/25/2021
CLICK TO GET WUUS01 PTSDY1 PRODUCT
NOTE: THE NEXT DAY 1 OUTLOOK IS SCHEDULED BY 2000Z
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