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 290508
Day 1 Convective Outlook
NWS Storm Prediction Center Norman OK
1108 PM CST Tue Nov 28 2017
Valid 291200Z - 301200Z
...NO SEVERE THUNDERSTORM AREAS FORECAST...
...SUMMARY...
Isolated thunderstorms will be possible across the Ozarks early
Wednesday. A few thunderstorms will also be possible across
southeast Florida.
...Discussion...
As a compact shortwave trough advances east overnight across the
southern Plains, it should continue to foster weak mid-level
buoyancy and isolated thunderstorms. Some convective activity will
likely persist past 12Z, such that a few thunderstorms will remain
possible as the impulse approaches the Ozarks. However, as it
continues to de-amplify through the day, weakening large-scale
ascent will support a downward trend in thunderstorms.
Across southeast Florida, a combination of modest surface-based
buoyancy and weak ascent associated with minor vorticity maxima over
the region will likely encourage a few thunderstorms through the
period.
..Picca/Cook.. 11/29/2017
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NOTE: THE NEXT DAY 1 OUTLOOK IS SCHEDULED BY 1300Z