Tornado Watch 101

Issued

Apr 11, 2013, 7:24 PM CDT (00:24 UTC)

Expired

Apr 12, 2013, 3:00 AM CDT

In force

8 hr

Issued by

the Storm Prediction Center

Largest hail expected

1.5 in

Strongest gust expected

65 kt

The Robins AFB radar (KJGX), 87 km from the middle of the area, began a volume at 00:24 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

60%

One or more EF2 to EF5 tornadoes

20%

Ten or more severe wind reports

90%

One or more gusts of 65 knots or more

20%

Ten or more severe hail reports

40%

One or more hailstones of 2 inches or more

10%

Six or more combined severe hail and wind reports

95%

• Mesoscale Discussion 447Apr 11, 3:26 PM CDT
• Mesoscale Discussion 448Apr 11, 5:03 PM CDT
• Mesoscale Discussion 451Apr 11, 5:54 PM CDT
• Mesoscale Discussion 454Apr 11, 9:52 PM CDT
• Mesoscale Discussion 455Apr 11, 11:46 PM CDT

055 
WWUS20 KWNS 120038
SEL1  
SPC WW 120038
ALZ000-FLZ000-GAZ000-NCZ000-SCZ000-CWZ000-120800-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 101
NWS STORM PREDICTION CENTER NORMAN OK
820 PM EDT THU APR 11 2013

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

       SOUTHEASTERN ALABAMA
       THE FLORIDA PANHANDLE
       WESTERN...CENTRAL...AND NORTHERN GEORGIA
       WESTERN NORTH CAROLINA
       WESTERN AND UPSTATE SOUTH CAROLINA
       COASTAL WATERS

EFFECTIVE THIS THURSDAY NIGHT AND FRIDAY MORNING FROM 820 PM
UNTIL 400 AM EDT.

TORNADOES...HAIL TO 1.5 INCHES IN DIAMETER...THUNDERSTORM WIND
GUSTS TO 75 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE
AREAS.

THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 75 STATUTE
MILES EAST AND WEST OF A LINE FROM 25 MILES WEST NORTHWEST OF
HICKORY NORTH CAROLINA TO 30 MILES SOUTH SOUTHEAST OF PANAMA CITY
FLORIDA.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU1).

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.

OTHER WATCH INFORMATION...CONTINUE...WW 98...WW 99...WW 100...

DISCUSSION...SSW-NNE SQLN NOW OVER ERN AL/NW GA EXPECTED TO CONTINUE
EWD ACROSS THE REMAINDER OF NRN/CNTRL GA AND ACROSS THE WRN
CAROLINAS THROUGH EARLY FRI...WITH SOME INCREASE IN SPEED POSSIBLE
AS ASSOCIATED UPR TROUGH NOW OVER MS ACCELERATES NEWD. COMBINATION
OF INCREASING ASCENT DOWNSTREAM FROM MS TROUGH...STRENGTHENING OF
EXISTING STRONG WIND FIELD...AND FAIRLY RICH LOW-LVL MOISTURE INFLOW
SUGGESTS A RISK FOR EMBEDDED SUPERCELLS/LEWPS/SMALL BOWS WITH DMGG
WIND/ISOLD TORNADOES. STRONGER WIND FIELD AND LARGE SCALE ASCENT MAY
COMPENSATE FOR SOMEWHAT DRIER LOW-LVL ENVIRONMENT AND THE LOSS OF
DAYTIME HEATING TO MAINTAIN A RISK FOR A FEW SUPERCELLS AHEAD OF THE
SQLN FROM CNTRL GA NNE INTO THE WRN CAROLINAS. THESE STORMS MAY POSE
A RISK FOR LOCALLY DMGG WIND AND TORNADOES...IN ADDITION TO SVR
HAIL.
WW 99 WILL REMAIN IN EFFECT FOR THAT PART OF THE SQLN IN E CNTRL AL.
A SMALL PART OF THAT WW MAY REQUIRE LOCAL EXTENSION IN TIME TO
ACCOUNT FOR A LINGERING RISK OF SVR WEATHER IN THAT REGION BEYOND
THE WATCH'S SCHEDULED EXPIRATION AT 03Z.

AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 1.5 INCHES. EXTREME TURBULENCE AND SURFACE
WIND GUSTS TO 65 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
550. MEAN STORM MOTION VECTOR 23040.


...CORFIDI

Tornado Watches in Georgia, 2013Tornado Watches in South Carolina, 2013Tornado Watches in North Carolina, 2013Every tornado watch in 2013

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.