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
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
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 230626
Day 2 Convective Outlook
NWS Storm Prediction Center Norman OK
1226 AM CST Thu Dec 23 2021
Valid 241200Z - 251200Z
...NO SEVERE THUNDERSTORM AREAS FORECAST...
...SUMMARY...
Isolated thunder is possible near the Pacific Coast, as well as over
portions of the southern Great Basin and Colorado Plateau.
...Synopsis...
A mid-level low will be located off the Pacific Northwest coast on
Friday and drift slowly south through the day. Farther south, a
progressive mid-level trough will move quickly from off the southern
California coast at 12Z Friday to the Midwest by 12Z Saturday.
Some isolated thunderstorms will be possible along the Pacific Coast
from just north of the Bay Area to Vancouver Island. Cold air will
be in place inland and therefore, instability for thunderstorm
development will be driven by cold air advection above relatively
warm ocean waters. Therefore, thunderstorm activity is not expected
to make it far inland with the threat remaining mostly offshore and
ending pretty quickly once any storm activity moves inland.
A few lightning flashes will be possible across portions of the
Inter Mountain West. Instability will be quite meager according to
forecast soundings, but may be sufficient for some charge separation
and a few lightning flashes.
..Bentley.. 12/23/2021
CLICK TO GET WUUS02 PTSDY2 PRODUCT
NOTE: THE NEXT DAY 2 OUTLOOK IS SCHEDULED BY 1730Z
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