Alert archive / North Carolina / Severe Thunderstorm Watches in 2000

Severe Thunderstorm Watch 754

September 25, 2000Columbia County, Lincoln County, Georgia; 38 counties in North Carolina; 29 counties in South Carolina

The Storm Prediction Center issued this severe thunderstorm watch at Sep 25, 2000, 3:30 PM EDT for Columbia County, Lincoln County, Georgia; 38 counties in North Carolina; 29 counties in South Carolina. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued
Sep 25, 2000, 3:30 PM EDT (19:30 UTC)
Expired
Sep 25, 2000, 9:00 PM EDT
In force
6 hr
Issued by
the Storm Prediction Center
All 69 counties

Columbia County, GA, Lincoln County, GA, Anson County, NC, Bladen County, NC, Brunswick County, NC, Buncombe County, NC, Burke County, NC, Cabarrus County, NC, Catawba County, NC, Chatham County, NC, Cleveland County, NC, Columbus County, NC, Cumberland County, NC, Davidson County, NC, Davie County, NC, Durham County, NC, Franklin County, NC, Gaston County, NC, Harnett County, NC, Henderson County, NC, Hoke County, NC, Iredell County, NC, Johnston County, NC, Lee County, NC, Lincoln County, NC, McDowell County, NC, Mecklenburg County, NC, Montgomery County, NC, Moore County, NC, Polk County, NC, Randolph County, NC, Richmond County, NC, Robeson County, NC, Rowan County, NC, Rutherford County, NC, Sampson County, NC, Scotland County, NC, Stanly County, NC, Union County, NC, Wake County, NC, Abbeville County, SC, Calhoun County, SC, Cherokee County, SC, Chester County, SC, Chesterfield County, SC, Clarendon County, SC, Darlington County, SC, Dillon County, SC, Edgefield County, SC, Fairfield County, SC, Florence County, SC, Greenville County, SC, Greenwood County, SC, Horry County, SC, Kershaw County, SC, Lancaster County, SC, Laurens County, SC, Lee County, SC, Lexington County, SC, Marion County, SC, Marlboro County, SC, McCormick County, SC, Newberry County, SC, Richland County, SC, Saluda County, SC, Spartanburg County, SC, Sumter County, SC, Union County, SC, York County, SC

The radar

The Columbia radar (KCAE), 121 km from the middle of the area, began a volume at 19:29 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
Sep 25, 4:00 PM EDTSevere Thunderstorm WarningGSPYork45 min
Sep 25, 4:30 PM EDTSevere Thunderstorm WarningGSPMecklenburg45 min
Sep 25, 4:33 PM EDTSevere Thunderstorm WarningGSPChester57 min
Sep 25, 4:39 PM EDTSevere Thunderstorm WarningCAENewberry, Saluda66 min
Sep 25, 4:42 PM EDTSevere Thunderstorm WarningGSPUnion63 min
Sep 25, 4:44 PM EDTSevere Thunderstorm WarningCAEFairfield, Lancaster61 min
Sep 25, 5:14 PM EDTSevere Thunderstorm WarningCAELexington61 min
Sep 25, 5:16 PM EDTSevere Thunderstorm WarningRAHHarnett44 min
Sep 25, 5:16 PM EDTSevere Thunderstorm WarningCAERichland59 min
Sep 25, 5:31 PM EDTSevere Thunderstorm WarningRAHMoore44 min
Sep 25, 5:59 PM EDTSevere Thunderstorm WarningRAHJohnston46 min
Sep 25, 6:11 PM EDTSevere Thunderstorm WarningRAHCumberland, Harnett49 min
Sep 25, 6:15 PM EDTSevere Thunderstorm WarningCAEChesterfield, Kershaw45 min
Sep 25, 6:18 PM EDTSevere Thunderstorm WarningILMDarlington, Marlboro72 min
Sep 25, 6:23 PM EDTSevere Thunderstorm WarningCAELee, Sumter52 min
Sep 25, 6:48 PM EDTSevere Thunderstorm WarningGSPGreenwood, Laurens42 min
Sep 25, 7:03 PM EDTFlash Flood WarningRAHWake3 hr
Sep 25, 7:32 PM EDTSevere Thunderstorm WarningRAHCumberland43 min
Sep 25, 8:29 PM EDTSevere Thunderstorm WarningCAELexington46 min

The nearest sounding before it

Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 7.5 hours before the alert went out and 144 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 2000-09-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 411 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 2000-09-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 52 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
411 J/kg
Mixed-layer CIN
-52 J/kg
Mixed-layer LCL
751 m above ground
0-6 km bulk shear
25 kt
0-1 km storm-relative helicity
52 m²/s²
0-3 km storm-relative helicity
175 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.4

Open this sounding in Storm Lab

The text

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

890 
WWUS9 KMKC 251915
SEL4  

SEL4  
MKC WW 251900
NCZ000-SCZ000-260100-

URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 754
STORM PREDICTION CENTER NORMAN OK
300 PM EDT MON SEP 25 2000

THE STORM PREDICTION CENTER HAS ISSUED A
SEVERE THUNDERSTORM WATCH FOR PORTIONS OF
                           
   CENTRAL AND SOUTHERN NORTH CAROLINA                     
   NORTHERN AND CENTRAL SOUTH CAROLINA                     

EFFECTIVE THIS MONDAY AFTERNOON AND EVENING FROM 330 PM UNTIL 900
PM EDT.

HAIL TO 1 INCH IN DIAMETER...THUNDERSTORM WIND GUSTS TO 70
MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.

THE SEVERE THUNDERSTORM WATCH AREA IS ALONG AND 80 STATUTE MILES
NORTH AND SOUTH OF A LINE FROM 25 MILES SOUTHWEST OF GREENVILLE
SOUTH CAROLINA TO 40 MILES EAST OF FAYETTEVILLE NORTH CAROLINA.

REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE
FAVORABLE FOR 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...TSTMS ARE BEGINNING TO INCREASE ACROSS UPSTATE SC.
AIR MASS HAS DESTABILIZED CONSIDERABLY SOUTH OF E-W FRONTAL
BOUNDARY OVER CNTRL NC...WITH SBCAPE VALUES NOW NEAR 2000 J/KG. 
WIND FIELDS ARE EXPECTED TO INCREASE THIS EVENING ON THE SRN
PERIPHERY OF STRONG UPPER TROUGH...WHICH WILL INCREASE WIND DAMAGE
POTENTIAL. THERE IS SOME CONCERN FOR SUPERCELLS IN THE IMMEDIATE
VICINITY OF FRONTAL BOUNDARY...BUT STRONG STATIC STABILITY ON THE
COOL SIDE OF THE FRONT SHOULD LIMIT THE TORNADO THREAT.

AVIATION...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 25035.

...VESCIO

334,0781 332,0823 354,0823 360,0781

Nearby

Severe Thunderstorm Watches in North Carolina, 2000Severe Thunderstorm Watches in South Carolina, 2000Severe Thunderstorm Watches in Georgia, 2000Every severe thunderstorm watch in 2000

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.