Alert archive / South Carolina / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 17, NWS Columbia, SC

March 10, 2000McCormick County, South Carolina

NWS Columbia, SC issued this severe thunderstorm warning at Mar 10, 2000, 3:30 PM EST for McCormick County, South Carolina. It was in force for 30 min. 1 report came from inside the area while it was in force.

The area

The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties, with what was reported inside it.

The facts

Issued: Mar 10, 2000, 3:30 PM EST (20:30 UTC)
Expired: Mar 10, 2000, 4:00 PM EST
In force: 30 min
Issued by: NWS Columbia, SC
Area: Whole counties; the outline is the Mesonet’s reconstruction

County McCormick County, SC

What was reported inside it

Time	Report	Where	Remark
Mar 10, 3:40 PM EST	Hail 1	Mc Cormick, SC	SKYWARN spotter reported 1 inch hail.

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 8.5 hours before the alert went out and 207 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 509 J/kg
Mixed-layer CIN: -89 J/kg
Mixed-layer LCL: 772 m above ground
0-6 km bulk shear: 21 kt
0-1 km storm-relative helicity: 68 m²/s²
0-3 km storm-relative helicity: 68 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 
WUUS52 KCAE 102033
SVRCAE
SCC065-102100-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE COLUMBIA SC
330 PM EST FRI MAR 10 2000

THE NATIONAL WEATHER SERVICE IN COLUMBIA HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  MCCORMICK COUNTY.

* UNTIL 400 PM EST.

* AT 330 PM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A 
SEVERE THUNDERSTORM IN THE VICNITY OF MCCORMICK...MOVING EAST AT 20 
MPH.

THIS IS A DANGEROUS STORM WITH DAMAGING WINDS AND LARGE HAIL. STAY
INDOORS AWAY FROM WINDOWS.

REPORT ANY HAIL...DAMAGING WINDS OR FLOODING TO YOUR COUNTY SHERIFF
OR TO THE NATIONAL WEATHER SERVICE.

LAT...LON 3406 8250 3398 8256 3379 8234 3378 8216
          3396 8213

HAWKS

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Columbia, SC wrote its last area forecast discussion before this severe thunderstorm warning went out at Mar 10, 2:27 PM EST, 1 hour 3 minutes earlier.

Area forecast discussion, Mar 10, 2:27 PM EST, 1 hour 3 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE COLUMBIA SC
227 PM EST FRI MAR 10 2000

TSTMS ALREADY POPPING UP THIS AFTN MAINLY W AND SW OF CAE. STMS
BEING FUELED BY MID-LVL S/W AS SHOWN ON LATEST RUC. ACTIVITY MAY
CONTINUE INTO EVENING HRS AS S/W LIFTS NE. MAIN FNT STILL TO OUR W
ON W SIDE OF APLCNS. MODELS IN GD AGREEMENT SHOWING 500 MB TROF
LIFTING OUT OF SRN ROCKIES AND MOVG EWRD TO ERN SEABOARD BY SUN AM.
TROF WL TAKE ON A BIT OF A NEGATIVE TILT AS IT DRAWS CLOSER TO OUR
CWA. WL KEEP HI CHC POP FOR MAINLY SHWRS TONITE BUT TSTM PSBL SINCE
AMS WL REMAIN MARGINALLY UNSTABLE. AS FNT GETS CLOSER ON SAT...AMS
WL BECOME MORE UNSTABLE WITH ADDITION OF DAYTIME HEATING. BEST CHC
FOR CONVECTION LATE SAT AM AND ERLY SAT AFTN. AFTER THAT TIME
PD...850 MB TEMP ADVECTION BECOMES MORE NEUTRAL. FNT SHUD MOV OFSHR
BY ERLY SUN AM WITH CLEARING LATE. SUN LUKS MOSTLY SUNNY AS HI PRES
MOVES IN BEHIND FNT.

WL USE GENL BLEND OF LCL SCHEMES AND FCST GUIDANCE FOR TEMPS.

ERLY PART OF XTND FCST LUKS DRY. FAST MOVG CDFNT WL APPROACH AREA ON
WED BRINGING CHC OF SHWRS. MSTR APPEARS A LITTLE LIMITED ATTM.

PRELIM CCFS

CAE TU 57/76/47/60/33 465
AGS TU 56/77/46/62/32 464

.CAE...NONE.

BC

In the hours before

Special weather statement, Mar 10, 1:40 PM EST, 1 hour 50 minutes before

SCZ015-016-018-020-021-022-025-026-027-028-029-030-031-035-036-
037-038-041-GAZ040-063-064-065-077-110100-

THUNDERSTORM OUTLOOK
NATIONAL WEATHER SERVICE COLUMBIA SC
140 PM EST FRI MAR 10 2000

THE THUNDERSTORM OUTLOOK PERTAINS TO THE FOLLOWING COUNTIES
IN SOUTH CAROLINA:

AIKEN         BAMBERG       BARNWELL      CALHOUN       CHESTERFIELD
CLARENDON     EDGEFIELD     FAIRFIELD     KERSHAW       LANCASTER
LEE           LEXINGTON     MCCORMICK     NEWBERRY      ORANGEBURG
RICHLAND      SALUDA        SUMTER

THE THUNDERSTORM OUTLOOK PERTAINS TO THE FOLLOWING COUNTIES
IN GEORGIA:

BURKE         COLUMBIA      LINCOLN       MCDUFFIE      RICHMOND

...SCATTERED THUNDERSTORMS OVER CENTRAL SOUTH CAROLINA THIS AFTERNOON
AND EVENING...

MORE MOISTURE HAS ENTERED CENTRAL SOUTH CAROLINA AND THE CENTRAL
SAVANNAH RIVER AREA OF GEORGIA. IN ADDITION...THE AIRMASS HAS BECOME
MORE UNSTABLE OVER THE PAST COUPLE OF HOURS. AS A RESULT...SCATTERED
THUNDERSTORMS HAVE DEVELOPED BETWEEN AUGUSTA AND COLUMBIA. MORE
SCATTERED THUNDERSTORMS SHOULD DEVELOP IN AREAS TO THE NORTH OF AUGUSTA
AND COLUMBIA FROM 2 TO 4 PM. SOME OF THESE STORMS WILL PRODUCE RAINFALL
RATES UP TO ONE INCH PER HOUR AND WIND GUSTS OF 30 TO 50 MPH. THE
THUNDERSTORM ACTIVITY SHOULD BEGIN TO DIMINISH FROM 6 TO 8 PM.

CURRENT DATA DOES NOT FAVOR SEVERE THUNDERSTORM DEVELOPMENT.
THEREFORE...EMERGENCY MANAGEMENT AND SPOTTER ACTIVATION SHOULD
NOT BE REQUIRED.

TTH

Local storm report, Mar 10, 2:50 PM EST, 40 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE COLUMBIA SC
250 PM EST FRI MAR 10 2000

TIME (EST) .....CITY LOCATION....... ST   ...EVENT/REMARKS...
           .....COUNTY LOCATION.....

245 PM     15E SALUDA                SC   WIND DAMAGE
03/10/00   SALUDA                         SALUDA EPD REPORT OF TREES
                                          DOWN

TA

Special weather statement, Mar 10, 2:54 PM EST, 36 minutes before

SCZ015-016-018-020-021-022-025-026-027-028-029-030-031-035-036-
037-038-041-GAZ040-063-064-065-077-110245-

SEVERE WEATHER OUTLOOK
NATIONAL WEATHER SERVICE COLUMBIA SC
254 PM EST FRI MAR 10 2000

THE SEVERE WEATHER OUTLOOK PERTAINS TO THE FOLLOWING COUNTIES
IN SOUTH CAROLINA:

AIKEN         BAMBERG       BARNWELL      CALHOUN       CHESTERFIELD
CLARENDON     EDGEFIELD     FAIRFIELD     KERSHAW       LANCASTER
LEE           LEXINGTON     MCCORMICK     NEWBERRY      ORANGEBURG
RICHLAND      SALUDA        SUMTER

THE SEVERE WEATHER OUTLOOK PERTAINS TO THE FOLLOWING COUNTIES
IN GEORGIA:

BURKE         COLUMBIA      LINCOLN       MCDUFFIE      RICHMOND

...SCATTERED THUNDERSTORMS THIS AFTERNOON AND EVENING...

MOISTURE AND INSTABILITY HAVE COMBINED TO PRODUCE SCATTERED
THUNDERSTORMS OVER CENTRAL SOUTH CAROLINA AND THE CENTRAL SAVANNAH RIVER
AREA OF GEORGIA THROUGH 8 PM. SOME OF THESE STORMS MAY PRODUCE 1/2 TO 1
INCH HAIL WITH WIND GUSTS OF 40 TO 60 MPH. THUNDERSTORMS WILL DECREASE
IN INTENSITY AFTER 6 PM.

EMERGENCY PREPAREDNESS OFFICIALS ARE REQUESTED TO BE PREPARED TO DEAL
WITH SEVERE WEATHER SHOULD IT DEVELOP. SEV7ERE WEATHER SPOTTERS...
INCLUDING AMATEUR RADIO OPERATORS...SHOULD MONITOR THIS WEATHER
SITUATION AND RELAY REPORTS PROMPTLY TO THE NEAREST NATIONAL WEATHER
SERVICE OFFICE.

TTH

Local storm report, Mar 10, 3:02 PM EST, 28 minutes before

LOCAL STORM REPORT
NATIONAL WEATHER SERVICE COLUMBIA, SC
302 PM EST FRI MAR 10 2000

TIME(EST)  ....LOCATION......        ST   ...EVENT/REMARKS...
           .....COUNTY.......
255 PM     4 W OF LEXINGTON          SC   .75 INCH HAIL
03/10/00   LEXINGTON                      US HIGHWAY 378. HAIL
                                          COVERING GROUND. REPORT
                                          BY HAM RADIO.

TA

The office that day

Everything else NWS Columbia, SC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Mar 10, 2:03 PM EST	Severe Thunderstorm Warning	CAE	Saluda	27 min
Mar 10, 2:40 PM EST	Severe Thunderstorm Warning	CAE	Lexington	50 min
Mar 10, 3:18 PM EST	Severe Thunderstorm Warning	CAE	Sumter	27 min
Mar 10, 3:40 PM EST	Severe Thunderstorm Warning	CAE	Lexington	50 min
Mar 10, 3:46 PM EST	Severe Thunderstorm Warning	CAE	Richland	44 min
Mar 10, 3:53 PM EST	Severe Thunderstorm Warning	CAE	Clarendon	52 min
Mar 10, 4:01 PM EST	Severe Thunderstorm Warning	CAE	Edgefield	44 min
Mar 10, 4:24 PM EST	Severe Thunderstorm Warning	CAE	Richland	36 min
Mar 10, 4:33 PM EST	Severe Thunderstorm Warning	CAE	Lexington	42 min

Nearby

Severe Thunderstorm Warnings in South Carolina, 2000 Every severe thunderstorm warning 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.