Alert archive / North Carolina / Tornado Watches in 2005

Tornado Watch 618

July 7, 200533 counties in North Carolina; 9 counties in South Carolina; 9 counties in Virginia

The Storm Prediction Center issued this tornado watch at Jul 7, 2005, 9:00 AM EDT for 33 counties in North Carolina; 9 counties in South Carolina; 9 counties in Virginia. It was in force for 7 hr.

The area

The outline as issued.

The facts

Issued
Jul 7, 2005, 9:00 AM EDT (13:00 UTC)
Expired
Jul 7, 2005, 3:41 PM EDT
In force
7 hr
Issued by
the Storm Prediction Center
All 51 counties

Alamance County, NC, Alexander County, NC, Burke County, NC, Cabarrus County, NC, Caldwell County, NC, Caswell County, NC, Catawba County, NC, Chatham County, NC, Cleveland County, NC, Davidson County, NC, Davie County, NC, Durham County, NC, Forsyth County, NC, Gaston County, NC, Granville County, NC, Guilford County, NC, Iredell County, NC, Lincoln County, NC, McDowell County, NC, Mecklenburg County, NC, Montgomery County, NC, Orange County, NC, Person County, NC, Polk County, NC, Randolph County, NC, Rockingham County, NC, Rowan County, NC, Rutherford County, NC, Stanly County, NC, Stokes County, NC, Surry County, NC, Union County, NC, Yadkin County, NC, Abbeville County, SC, Cherokee County, SC, Chester County, SC, Greenville County, SC, Greenwood County, SC, Laurens County, SC, Spartanburg County, SC, Union County, SC, York County, SC, Appomattox County, VA, Campbell County, VA, Charlotte County, VA, City of Danville, VA, City of Martinsville, VA, Halifax County, VA, Henry County, VA, Patrick County, VA, Pittsylvania County, VA

The radar

The Roanoke radar (KFCX), 100 km from the middle of the area, began a volume at 13:01 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

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

IssuedProductOfficeCountiesLasted
Jul 7, 9:15 AM EDTFlash Flood WarningGSPSpartanburg6 hr
Jul 7, 9:32 AM EDTTornado WarningGSPGreenville29 min
Jul 7, 10:05 AM EDTFlash Flood WarningGSPPolk4 hr
Jul 7, 10:07 AM EDTTornado WarningGSPSpartanburg55 min
Jul 7, 11:33 AM EDTFlash Flood WarningGSPRutherford4 hr
Jul 7, 12:40 PM EDTTornado WarningGSPCatawba50 min
Jul 7, 1:02 PM EDTTornado WarningGSPAlexander58 min
Jul 7, 1:30 PM EDTFlash Flood WarningGSPAlexander3 hr
Jul 7, 1:31 PM EDTTornado WarningGSPIredell62 min
Jul 7, 1:41 PM EDTSevere Thunderstorm WarningRAHDavidson34 min
Jul 7, 1:57 PM EDTFlash Flood WarningGSPIredell3 hr
Jul 7, 2:37 PM EDTSevere Thunderstorm WarningRAHForsyth38 min
Jul 7, 3:00 PM EDTTornado WarningRAHForsyth15 min
Jul 7, 3:04 PM EDTTornado WarningRNKStokes56 min
Jul 7, 3:11 PM EDTSevere Thunderstorm WarningGSPDavie27 min
Jul 7, 3:22 PM EDTTornado WarningRAHForsyth23 min
Jul 7, 3:23 PM EDTTornado WarningRAHPerson40 min
Jul 7, 3:32 PM EDTSevere Thunderstorm WarningGSPMecklenburg58 min
Jul 7, 3:41 PM EDTTornado WarningGSPMecklenburg49 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

Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 1.0 hours before the alert went out and 22 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, Greensboro/Hi Pt, NC at 12:00Z on 2005-07-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 309 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, Greensboro/Hi Pt, NC at 12:00Z on 2005-07-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 74 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
309 J/kg
Mixed-layer CIN
-68 J/kg
Mixed-layer LCL
1315 m above ground
0-6 km bulk shear
47 kt
0-1 km storm-relative helicity
74 m²/s²
0-3 km storm-relative helicity
170 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

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

000 
WWUS20 KWNS 071257
SEL8  
SPC WW 071257
NCZ000-SCZ000-VAZ000-072000-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 618
NWS STORM PREDICTION CENTER NORMAN OK
900 AM EDT THU JUL 7 2005

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

       WESTERN AND CENTRAL NORTH CAROLINA
       UPSTATE SOUTH CAROLINA
       SOUTH CENTRAL VIRGINIA

EFFECTIVE THIS THURSDAY MORNING AND AFTERNOON FROM 900 AM UNTIL
400 PM EDT.

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 55 STATUTE MILES
NORTH AND SOUTH OF A LINE FROM 45 MILES EAST NORTHEAST OF DANVILLE
VIRGINIA TO 20 MILES SOUTHWEST OF GREENVILLE SOUTH CAROLINA.  FOR
A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE
UPDATE (WOUS64 KWNS WOU8).

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...THIS TORNADO WATCH REPLACES TORNADO
WATCH NUMBER 617. WATCH NUMBER 617 WILL NOT BE IN EFFECT AFTER 900
AM EDT. 

DISCUSSION...ISOLATED SUPERCELLS IN STRONGLY SHEARED ENVIRONMENT
DOWNSTREAM FROM REMNANT CIRCULATION OF FORMER T.S. CINDY MAY
INCREASE IN NUMBER/INTENSITY LATER THIS MORNING AS ASSOCIATED LOW
LEVEL SPEED MAX NOW OVER SC CONTINUES NEWD...AND HEATING
DESTABILIZES REGION.  POTENTIAL WILL EXIST FOR TORNADOES...GIVEN
RICH MOISTURE INFLOW...AND POSSIBLE SMALL SCALES BOWS WITH HIGH
WIND.

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 500.
MEAN STORM MOTION VECTOR 22030.


...CORFIDI

360,0783 335,0822 352,0822 373,0783

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 7, 1:47 AM EDTMesoscale DiscussionSPCCherokee, Clay, Macon, Polk, Transylvania28 min
Jul 7, 3:10 AM EDTTornado WatchSPCCabarrus, Catawba, Cleveland, Davie, Gaston, Henderson and 8 more6 hr
Jul 7, 5:44 AM EDTMesoscale DiscussionSPCAlexander, Burke, Cabarrus, Catawba, Cleveland, Davie and 10 more91 min
Jul 7, 8:43 AM EDTMesoscale DiscussionSPCAlamance, Alexander, Anson, Burke, Cabarrus, Caldwell and 33 more32 min
Jul 7, 12:33 PM EDTMesoscale DiscussionSPCAlexander, Burke, Caldwell, Caswell, Catawba, Cleveland and 15 more117 min
Jul 7, 1:17 PM EDTMesoscale DiscussionSPCBertie, Chowan, Dare, Edgecombe, Halifax, Hertford and 8 more88 min
Jul 7, 2:05 PM EDTTornado WatchSPCBertie, Camden, Chowan, Currituck, Dare, Edgecombe and 14 more8 hr
Jul 7, 3:45 PM EDTTornado WatchSPCAlamance, Cabarrus, Caswell, Chatham, Davidson, Davie and 17 more6 hr
Jul 7, 4:47 PM EDTMesoscale DiscussionSPCHalifax, Northampton118 min
Jul 7, 6:01 PM EDTMesoscale DiscussionSPCBertie, Camden, Chatham, Chowan, Currituck, Dare and 20 more59 min

Nearby

Tornado Watches in North Carolina, 2005Tornado Watches in South Carolina, 2005Tornado Watches in Virginia, 2005Every tornado watch in 2005

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.