Tornado Watch 699

Issued

Dec 26, 2012, 10:08 AM EST (15:08 UTC)

Expired

Dec 26, 2012, 4:11 PM EST

In force

6 hr

Issued by

the Storm Prediction Center

Largest hail expected

1 in

Strongest gust expected

65 kt

The Wilmington radar (KLTX), 72 km from the middle of the area, began a volume at 15:11 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

Two or more tornadoes

40%

One or more EF2 to EF5 tornadoes

30%

Ten or more severe wind reports

60%

One or more gusts of 65 knots or more

50%

Ten or more severe hail reports

5%

One or more hailstones of 2 inches or more

5%

Six or more combined severe hail and wind reports

90%

• Mesoscale Discussion 2229Dec 26, 6:20 AM EST
• Mesoscale Discussion 2231Dec 26, 8:07 AM EST
• Mesoscale Discussion 2237Dec 26, 2:20 PM EST

331 
WWUS20 KWNS 261514
SEL9
SPC WW 261514
NCZ000-SCZ000-CWZ000-262200-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 699
NWS STORM PREDICTION CENTER NORMAN OK
1010 AM EST WED DEC 26 2012

THE NWS STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF

       SOUTHERN AND EASTERN NORTH CAROLINA
       EASTERN SOUTH CAROLINA
       COASTAL WATERS

EFFECTIVE THIS WEDNESDAY MORNING AND AFTERNOON FROM 1010 AM UNTIL
500 PM EST.

TORNADOES...HAIL TO 1 INCH IN DIAMETER...THUNDERSTORM WIND GUSTS
TO 75 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.

THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 60 STATUTE
MILES EITHER SIDE OF A LINE FROM 40 MILES SOUTH OF FLORENCE SOUTH
CAROLINA TO 30 MILES NORTHEAST OF CAPE HATTERAS NORTH CAROLINA.
FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH
OUTLINE UPDATE (WOUS64 KWNS WOU9).

REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR
TORNADOES AND SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH
AREA. PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR
THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS
AND POSSIBLE WARNINGS.

DISCUSSION...THUNDERSTORMS ARE EXPECTED TO MOVE NEWD ACROSS SOUTHERN
AND EASTERN NC AND EASTERN SC THROUGH THE AFTERNOON...AS A WARM
FRONT MOVES INLAND RESULTING IN A FAVORABLE ENVIRONMENT FOR SURFACE
BASED ACTIVITY.  DESPITE WEAK INSTABILITY...STRONG FORCING FOR
ASCENT WILL SPREAD ACROSS THIS REGION AS A PROGRESSIVE SHORTWAVE
TROUGH BECOMES NEGATIVELY TILTED...MOVING TOWARD THE ATLANTIC COAST.
STRONG VERTICALLY VEERING WINDS WILL SUPPORT SUPERCELLS WITH A FEW
TORNADOES POSSIBLE.  DAMAGING WINDS WILL ALSO BE A THREAT.

AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 1 INCH. EXTREME TURBULENCE AND SURFACE WIND
GUSTS TO 65 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 450.
MEAN STORM MOTION VECTOR 22040.


...PETERS/EDWARDS

Tornado Watches in North Carolina, 2012Tornado Watches in South Carolina, 2012Every tornado watch in 2012

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.