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 240036
Day 1 Convective Outlook
NWS Storm Prediction Center Norman OK
0636 PM CST Sun Dec 23 2018
Valid 240100Z - 241200Z
...NO THUNDERSTORM AREAS FORECAST...
...SUMMARY...
Thunderstorms are not expected tonight.
...Pacific Northwest...
A low-amplitude shortwave trough will move inland and across WA
tonight. The 00z observed sounding from UIL/Quillayute WA sampled
relatively steep lapse rates and a few hundred J/kg of MUCAPE. While
such a thermodynamic profile could still support a low-topped
thunderstorm or two early this evening across coastal areas of
WA/northwest OR, a trend toward mid-level subsidence and warming
aloft should considerably limit the potential for thunderstorms the
remainder of the night.
..Guyer.. 12/24/2018
CLICK TO GET WUUS01 PTSDY1 PRODUCT
NOTE: THE NEXT DAY 1 OUTLOOK IS SCHEDULED BY 0600Z
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