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 290507
DAY 1 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1107 PM CST MON DEC 28 2015
VALID 291200Z - 301200Z
...NO SVR TSTM AREAS FORECAST...
...SUMMARY...
ISOLATED TO SCATTERED THUNDERSTORMS WILL DEVELOP FROM THE CENTRAL
GULF COAST INTO THE MID-ATLANTIC REGION TODAY AND TONIGHT.
...SYNOPSIS...
MIDLEVEL HEIGHT RISES WILL OCCUR ACROSS MUCH OF THE ERN CONUS AHEAD
OF A SHORTWAVE TROUGH MOVING THROUGH THE SRN PLAINS. AS THIS
OCCURS...A SFC BOUNDARY WILL STALL DURING THE AFTERNOON FROM THE
CNTRL GULF COAST INTO THE MID-ATLANTIC REGION. MOISTURE WILL SLOWLY
ADVANCE INLAND ACROSS THE SOUTHEAST OVERNIGHT AS THE AFOREMENTIONED
SHORTWAVE TROUGH ACCELERATES TOWARDS THE MID-MS VALLEY.
...THE CAROLINAS...
ISOLATED SHOWERS AND THUNDERSTORMS MAY DEVELOP ACROSS THE PIEDMONT
AND COASTAL PLAIN DURING THE AFTERNOON WITHIN A MOIST AIR MASS E OF
A STALLED BOUNDARY. A STRONG GUST OR TWO COULD OCCUR DURING PEAK
HEATING AS TEMPERATURES APPROACH 80 F...GIVEN 25-40 KT OF
LOW-MIDLEVEL TROPOSPHERIC FLOW AND STEEPENING BOUNDARY-LAYER LAPSE
RATES. HOWEVER...WEAK LOW-LEVEL CONVERGENCE COMBINED WITH MIDLEVEL
HEIGHT RISES ARE EXPECTED TO LIMIT BOTH CONVECTIVE COVERAGE AND
UPDRAFT STRENGTH.
..ROGERS/BROYLES.. 12/29/2015
CLICK TO GET WUUS01 PTSDY1 PRODUCT
NOTE: THE NEXT DAY 1 OUTLOOK IS SCHEDULED BY 1300Z
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