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 270500
Day 1 Convective Outlook
NWS Storm Prediction Center Norman OK
1100 PM CST Tue Dec 26 2017
Valid 271200Z - 281200Z
...NO THUNDERSTORM AREAS FORECAST...
...SUMMARY...
No organized thunderstorms are forecast today.
...Synopsis...
High surface pressure currently centered over the central Plains is
expected to slide eastward through the middle MS valley and into the
upper Great Lakes throughout the period, maintaining its influence
over the majority of the central and eastern CONUS. Cold and dry
airmass associated with this high pressure will preclude
thunderstorms across the land areas. Isolated strikes are possible
near the frontal low moving eastward over the central Gulf of Mexico
and another surface low developing off the Carolina coast. West of
the Rockies, cool, dry, and stable conditions will temper any
thunderstorm chances.
..Mosier/Elliott.. 12/27/2017
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NOTE: THE NEXT DAY 1 OUTLOOK IS SCHEDULED BY 1300Z