Alert archive / South Carolina / Tornado Watches in 2006

Tornado Watch 355

May 14, 20064 counties in North Carolina; 9 counties in South Carolina

The Storm Prediction Center issued this tornado watch at May 14, 2006, 6:52 PM EDT for 4 counties in North Carolina; 9 counties in South Carolina. It was in force for 5 hr.

The area

The outline as issued.

The facts

Issued
May 14, 2006, 6:52 PM EDT (22:52 UTC)
Expired
May 15, 2006, 12:00 AM EDT
In force
5 hr
Issued by
the Storm Prediction Center
Largest hail expected
2 in
Strongest gust expected
60 kt

Counties Brunswick County, NC, Columbus County, NC, New Hanover County, NC, Pender County, NC, Allendale County, SC, Berkeley County, SC, Charleston County, SC, Colleton County, SC, Dorchester County, SC, Georgetown County, SC, Hampton County, SC, Horry County, SC, Williamsburg County, SC

The radar

The Charleston,SC radar (KCLX), 135 km from the middle of the area, began a volume at 22:55 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.

What SPC expected

The probabilities SPC published with the watch, for the watch area over its life.

Two or more tornadoes
40%
One or more EF2 to EF5 tornadoes
20%
Ten or more severe wind reports
40%
One or more gusts of 65 knots or more
10%
Ten or more severe hail reports
50%
One or more hailstones of 2 inches or more
10%
Six or more combined severe hail and wind reports
80%

Warnings issued inside it

19 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.

IssuedProductOfficeCountiesLasted
May 14, 6:55 PM EDTSevere Thunderstorm WarningILMHorry20 min
May 14, 6:56 PM EDTSevere Thunderstorm WarningCHSHampton34 min
May 14, 7:03 PM EDTSevere Thunderstorm WarningCHSColleton57 min
May 14, 7:14 PM EDTSevere Thunderstorm WarningILMColumbus61 min
May 14, 7:14 PM EDTSevere Thunderstorm WarningILMWilliamsburg31 min
May 14, 7:28 PM EDTTornado WarningCHSColleton47 min
May 14, 7:52 PM EDTSevere Thunderstorm WarningCHSCharleston, Dorchester68 min
May 14, 7:55 PM EDTSevere Thunderstorm WarningILMWilliamsburg35 min
May 14, 8:10 PM EDTTornado WarningCHSCharleston, Dorchester65 min
May 14, 8:12 PM EDTSevere Thunderstorm WarningILMBrunswick22 min
May 14, 8:20 PM EDTSevere Thunderstorm WarningCHSBerkeley55 min
May 14, 8:31 PM EDTSevere Thunderstorm WarningCHSColleton29 min
May 14, 8:35 PM EDTTornado WarningCHSColleton25 min
May 14, 8:38 PM EDTSevere Thunderstorm WarningILMGeorgetown37 min
May 14, 8:39 PM EDTTornado WarningCHSBerkeley36 min
May 14, 9:01 PM EDTSevere Thunderstorm WarningCHSColleton29 min
May 14, 9:12 PM EDTTornado WarningCHSCharleston63 min
May 14, 9:41 PM EDTSevere Thunderstorm WarningCHSBerkeley34 min
May 14, 10:15 PM EDTSevere Thunderstorm WarningCHSCharleston45 min

Discussions around it

SPC mesoscale discussions over the same counties from four hours before the watch to its end.

The nearest sounding before it

Charleston AFB, SC (KCHS), launched 12:00Z, 10.9 hours before the alert went out and 45 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Charleston AFB, SC at 12:00Z on 2006-05-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 14 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Charleston AFB, SC at 12:00Z on 2006-05-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 42 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
14 J/kg
Mixed-layer CIN
-47 J/kg
Mixed-layer LCL
1136 m above ground
0-6 km bulk shear
41 kt
0-1 km storm-relative helicity
42 m²/s²
0-3 km storm-relative helicity
193 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WWUS20 KWNS 142254
SEL5  
SPC WW 142254
GAZ000-NCZ000-SCZ000-CWZ000-150200-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 355
NWS STORM PREDICTION CENTER NORMAN OK
655 PM EDT SUN MAY 14 2006

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

       SOUTHEASTERN GEORGIA
       SOUTHERN NORTH CAROLINA
       COASTAL SOUTH CAROLINA
       COASTAL WATERS

EFFECTIVE THIS SUNDAY EVENING FROM 655 PM UNTIL 1000 PM EDT.

TORNADOES...HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND
GUSTS TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE
AREAS.

THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 130 STATUTE
MILES EITHER SIDE OF A LINE FROM 40 MILES SOUTH SOUTHWEST OF
MYRTLE BEACH SOUTH CAROLINA TO 50 MILES WEST NORTHWEST OF MYRTLE
BEACH SOUTH CAROLINA.  FOR A COMPLETE DEPICTION OF THE WATCH SEE
THE ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU5).

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 350...WW 351...WW
352...WW 353...WW 354...

DISCUSSION...DISCRETE SUPERCELLS THAT HAVE FORMED IN THE SAVANNAH
RVR VLY EXPECTED TO CONTINUE E/ENE IN MODERATE TO STRONGLY SHEARED
ENVIRONMENT.  GIVEN POTENTIAL LONG-LIFE FOR EXISTING STORMS... AND
POSSIBILITY FOR ADDITIONAL DEVELOPMENT THROUGH EARLY EVENING... THIS
WATCH UPGRADES EXISTING SVR TSTM WATCH FOR PARTS OF THE GA/SC/NC
CSTL PLAIN.

AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 2 INCHES. EXTREME TURBULENCE AND SURFACE
WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
450. MEAN STORM MOTION VECTOR 26035.


...CORFIDI

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 13, 8:11 PM EDTSevere Thunderstorm WatchSPCCherokee, Clay, Graham, Jackson, Macon, Swain5 hr
May 14, 12:21 AM EDTMesoscale DiscussionSPCCherokee, Clay, Graham, Jackson, Macon, Swain54 min
May 14, 12:20 PM EDTMesoscale DiscussionSPCAlamance, Alexander, Alleghany, Anson, Ashe, Beaufort and 68 more115 min
May 14, 12:37 PM EDTSevere Thunderstorm WatchSPCAlamance, Alexander, Anson, Bladen, Cabarrus, Caswell and 45 more7 hr
May 14, 2:42 PM EDTMesoscale DiscussionSPCAlamance, Anson, Beaufort, Bertie, Cabarrus, Camden and 55 more63 min
May 14, 2:47 PM EDTTornado WatchSPCAlamance, Anson, Beaufort, Bertie, Camden, Carteret and 47 more7 hr
May 14, 3:32 PM EDTSevere Thunderstorm WatchSPCBrunswick, Columbus, New Hanover, Pender6 hr
May 14, 4:35 PM EDTMesoscale DiscussionSPCBeaufort, Bertie, Camden, Carteret, Chatham, Chowan and 42 more55 min
May 14, 4:58 PM EDTMesoscale DiscussionSPCAlexander, Bladen, Brunswick, Cabarrus, Caswell, Catawba and 18 more92 min
May 14, 5:00 AM EDTMesoscale DiscussionSPCAbbeville, Aiken, Anderson, Edgefield, Greenwood, Laurens and 6 more90 min

Nearby

Tornado Watches in South Carolina, 2006Tornado Watches in North Carolina, 2006Every tornado watch in 2006

Sources

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.