Alert archive / Virginia / Tornado Watches in 2006

Tornado Watch 21

January 13, 200636 counties in North Carolina; Georgetown County, Horry County, South Carolina; 45 counties in Virginia

The Storm Prediction Center issued this tornado watch at Jan 13, 2006, 11:45 PM EST for 36 counties in North Carolina; Georgetown County, Horry County, South Carolina; 45 counties in Virginia. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued
Jan 13, 2006, 11:45 PM EST (04:45 UTC)
Expired
Jan 14, 2006, 5:43 AM EST
In force
6 hr
Issued by
the Storm Prediction Center
All 83 counties

Beaufort County, NC, Bertie County, NC, Bladen County, NC, Brunswick County, NC, Camden County, NC, Carteret County, NC, Chowan County, NC, Columbus County, NC, Craven County, NC, Currituck County, NC, Duplin County, NC, Edgecombe County, NC, Franklin County, NC, Gates County, NC, Greene County, NC, Halifax County, NC, Hertford County, NC, Johnston County, NC, Jones County, NC, Lenoir County, NC, Martin County, NC, Nash County, NC, New Hanover County, NC, Northampton County, NC, Onslow County, NC, Pamlico County, NC, Pasquotank County, NC, Pender County, NC, Perquimans County, NC, Pitt County, NC, Sampson County, NC, Tyrrell County, NC, Warren County, NC, Washington County, NC, Wayne County, NC, Wilson County, NC, Georgetown County, SC, Horry County, SC, Accomack County, VA, Amelia County, VA, Brunswick County, VA, Charles City County, VA, Chesterfield County, VA, City of Chesapeake, VA, City of Colonial Heights, VA, City of Emporia, VA, City of Franklin, VA, City of Hampton, VA, City of Hopewell, VA, City of Newport News, VA, City of Norfolk, VA, City of Petersburg, VA, City of Poquoson, VA, City of Portsmouth, VA, City of Richmond, VA, City of Suffolk, VA, City of Virginia Beach, VA, City of Williamsburg, VA, Dinwiddie County, VA, Gloucester County, VA, Goochland County, VA, Greensville County, VA, Hanover County, VA, Henrico County, VA, Isle of Wight County, VA, James City County, VA, King and Queen County, VA, King William County, VA, Lancaster County, VA, Lunenburg County, VA, Mathews County, VA, Mecklenburg County, VA, Middlesex County, VA, New Kent County, VA, Northampton County, VA, Northumberland County, VA, Nottoway County, VA, Powhatan County, VA, Prince George County, VA, Southampton County, VA, Surry County, VA, Sussex County, VA, York County, VA

The radar

The Raleigh/Durham radar (KRAX), 100 km from the middle of the area, began a volume at 04:48 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.

Warnings issued inside it

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

IssuedProductOfficeCountiesLasted
Jan 13, 11:47 PM ESTSevere Thunderstorm WarningILMHorry43 min
Jan 14, 12:08 AM ESTSevere Thunderstorm WarningILMColumbus37 min
Jan 14, 12:26 AM ESTSevere Thunderstorm WarningILMBladen34 min
Jan 14, 12:45 AM ESTSevere Thunderstorm WarningRAHSampson15 min
Jan 14, 12:49 AM ESTSevere Thunderstorm WarningMHXDuplin41 min
Jan 14, 1:13 AM ESTSevere Thunderstorm WarningRAHWayne27 min
Jan 14, 1:21 AM ESTSevere Thunderstorm WarningMHXGreene, Lenoir24 min
Jan 14, 1:25 AM ESTSevere Thunderstorm WarningAKQDinwiddie, Prince George, City of Colonial Heights, City of Hopewell, City of Petersburg35 min
Jan 14, 1:25 AM ESTSevere Thunderstorm WarningAKQDinwiddie, Prince George, City of Colonial Heights, City of Hopewell, City of Petersburg35 min
Jan 14, 1:33 AM ESTSevere Thunderstorm WarningAKQGreensville, Southampton, Sussex, City of Emporia27 min
Jan 14, 1:34 AM ESTTornado WarningMHXGreene, Pitt26 min
Jan 14, 1:42 AM ESTSevere Thunderstorm WarningAKQNorthampton63 min
Jan 14, 1:48 AM ESTTornado WarningAKQCharles City, New Kent42 min
Jan 14, 1:59 AM ESTSevere Thunderstorm WarningMHXBeaufort, Martin31 min
Jan 14, 1:59 AM ESTSevere Thunderstorm WarningAKQPrince George, Surry, Sussex61 min
Jan 14, 2:04 AM ESTTornado WarningAKQKing and Queen, King William41 min
Jan 14, 2:09 AM ESTSevere Thunderstorm WarningAKQSouthampton36 min
Jan 14, 2:12 AM ESTTornado WarningMHXCraven, Jones33 min
Jan 14, 2:20 AM ESTSevere Thunderstorm WarningAKQBertie40 min
Jan 14, 2:30 AM ESTSevere Thunderstorm WarningAKQHertford45 min
Jan 14, 2:52 AM ESTSevere Thunderstorm WarningAKQLancaster, Middlesex, Northumberland53 min
Jan 14, 3:05 AM ESTTornado WarningAKQCity of Chesapeake, City of Portsmouth25 min
Jan 14, 3:14 AM ESTSevere Thunderstorm WarningAKQCity of Suffolk61 min
Jan 14, 3:22 AM ESTSevere Thunderstorm WarningAKQYork, City of Hampton, City of Newport News, City of Poquoson38 min
Jan 14, 3:28 AM ESTSevere Thunderstorm WarningAKQCamden, Currituck62 min
Jan 14, 3:30 AM ESTSevere Thunderstorm WarningAKQCamden, Currituck60 min
Jan 14, 3:35 AM ESTTornado WarningAKQCurrituck25 min
Jan 14, 3:36 AM ESTSevere Thunderstorm WarningAKQCity of Norfolk, City of Portsmouth24 min
Jan 14, 4:22 AM ESTSevere Thunderstorm WarningAKQAccomack, Northampton47 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

Newport, NC (KMHX), launched 00:00Z, 4.8 hours before the alert went out and 140 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, Newport, NC at 00:00Z on 2006-01-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 367 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Newport, NC at 00:00Z on 2006-01-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 164 square meters per square second.193958Sfc1 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
367 J/kg
Mixed-layer CIN
-15 J/kg
Mixed-layer LCL
748 m above ground
0-6 km bulk shear
40 kt
0-1 km storm-relative helicity
164 m²/s²
0-3 km storm-relative helicity
219 m²/s²
Significant tornado parameter
0.3
Supercell composite
2.6

Open this sounding in Storm Lab

The text

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

000 
WWUS20 KWNS 140444
SEL1  
SPC WW 140444
NCZ000-SCZ000-VAZ000-CWZ000-141200-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 21
NWS STORM PREDICTION CENTER NORMAN OK
1145 PM EST FRI JAN 13 2006

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

       EASTERN NORTH CAROLINA
       EXTREME NORTHEAST SOUTH CAROLINA
       SOUTHEAST VIRGINIA
       COASTAL WATERS

EFFECTIVE THIS FRIDAY NIGHT AND SATURDAY MORNING FROM 1145 PM
UNTIL 700 AM EST.

TORNADOES...HAIL TO 1 INCH IN DIAMETER...THUNDERSTORM WIND GUSTS
TO 70 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 45 MILES NORTH NORTHWEST OF NORFOLK
VIRGINIA TO 35 MILES EAST SOUTHEAST OF MYRTLE BEACH SOUTH
CAROLINA.  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 19...WW 20...

DISCUSSION...LINE OF STRONG/SEVERE THUNDERSTORMS ALONG COLD FRONT
WILL CONTINUE EWD/NEWD ACROSS SC/NC/VA OVERNIGHT...WITH ADDITIONAL
DEVELOPMENT POSSIBLE E OF THE LINE ACROSS ERN NC.  THOUGH
INSTABILITY IS RELATIVELY WEAK IN THE WARM SECTOR...MOIST PROFILES
AND VERY STRONG L0W-LEVEL SHEAR WILL STILL SUPPORT A THREAT FOR A
COUPLE OF TORNADOES AND ISOLATED DAMAGING WINDS THROUGH THE EARLY
MORNING HOURS.

AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 1 INCH. EXTREME TURBULENCE AND SURFACE WIND
GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 350.
MEAN STORM MOTION VECTOR 24045.


...THOMPSON

372,0750 332,0770 332,0794 372,0775

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jan 13, 9:00 PM ESTMesoscale DiscussionSPCAlamance, Anson, Beaufort, Bertie, Bladen, Brunswick and 59 more2 hr
Jan 14, 3:31 AM ESTMesoscale DiscussionSPCCamden, Carteret, Currituck, Dare, Hyde, Pasquotank and 1 more89 min
Jan 13, 7:49 PM ESTMesoscale DiscussionSPCAllendale, Beaufort, Berkeley, Charleston, Colleton, Dorchester and 2 more86 min
Jan 13, 11:01 PM ESTMesoscale DiscussionSPCBerkeley, Charleston59 min
Jan 14, 2:19 AM ESTMesoscale DiscussionSPCEssex, Richmond, Westmoreland86 min

Nearby

Tornado Watches in Virginia, 2006Tornado Watches in North Carolina, 2006Tornado Watches in South 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.