Alert archive / South Carolina / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 78, NWS Columbia, SC

June 19, 2000Clarendon County, South Carolina

NWS Columbia, SC issued this severe thunderstorm warning at Jun 19, 2000, 3:37 PM EDT for Clarendon County, South Carolina. It was in force for 53 min. No storm report in the archive falls 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.

The facts

Issued: Jun 19, 2000, 3:37 PM EDT (19:37 UTC)
Expired: Jun 19, 2000, 4:30 PM EDT
In force: 53 min
Issued by: NWS Columbia, SC
Area: Whole counties; the outline is the Mesonet’s reconstruction

County Clarendon County, SC

The radar

The Columbia radar (KCAE), 88 km from the middle of the area, began a volume at 19:39 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.

The nearest sounding before it

Charleston AFB, SC (KCHS), launched 12:00Z, 7.6 hours before the alert went out and 92 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: 688 J/kg
Mixed-layer CIN: -42 J/kg
Mixed-layer LCL: 879 m above ground
0-6 km bulk shear: 5 kt
0-1 km storm-relative helicity: 14 m²/s²
0-3 km storm-relative helicity: 26 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 191940
SVRCAE
SCC027-192030-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE COLUMBIA SC
337 PM EDT MON JUN 19 2000

THE NATIONAL WEATHER SERVICE IN COLUMBIA HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CLARENDON COUNTY IN CENTRAL SOUTH CAROLINA

* UNTIL 430 PM EDT.

* AT 335 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM NEAR PAXVILLE...MOVING EAST AT 20 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  MANNING AT 355 PM EDT. OTHER STORMS WILL BE MOVING ACROSS THE REMAINDER
  OF CLARENDON COUNTY.

THIS IS A DANGEROUS STORM. STAY INDOORS AWAY FROM WINDOWS.

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

LAT...LON 3383 8039 3366 8046 3348 7996 3372 7986

! BLP !

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 Jun 19, 2:33 PM EDT, 1 hour 4 minutes earlier.

Area forecast discussion, Jun 19, 2:33 PM EDT, 1 hour 4 minutes before

SCZ015-016-018-020>022-025>031-035>038-041-GAZ040-063>065-077-200615-

AREA FORECAST DISCUSSION...CORRECTED
NATIONAL WEATHER SERVICE COLUMBIA, SC
233 PM EDT MON JUN 19 2000

A WARM HUMID AIRMASS WILL CONTINUE OVER SOUTH CAROLINA TONIGHT AND
TUESDAY. MODELS SHOW WEAK UPPER TROUGH OVER CAE CWA THIS AFTERNOON
AND THIS EVENING. ETA-MESOETA SHOW GOOD UPWARD LIFT UNTIL ABOUT
MIDNIGHT WITH LIS RUNNING ABOUT -4/-6 SAME TIME PERIOD. ETA-MESOETA
KEEPS MOISTURE WITH UNSTABLE CONDITIONS WITH A WEAK UPPER LEVEL
TROUGH FOR TUESDAY WITH HIGH POPS. AVN...ON THE OTHER HAND...BRINGS
UPPER RIDGING TO THE AREA WITH LOW POPS. HAVE OPTED FOR ETA-MESOETA.
ACTUALLY...PLAN ON KEEPING MENTION OF AFTERNOON-EVENING
THUNDERSTORMS IN EXTENDED AS WELL SINCE SURFACE FRONTS SHOULD BE
WEAK AND SLOW MOVING THIS TIME OF YEAR. OTHERWISE...FWC AND FMR
TEMPERATURES LOOK REASONABLE. WILL MAKE MINOR ADJUSTMENTS.

FCSTID = 07
CAE   73  93  73  95 /  30  60  30  30
AGS   72  95  72  96 /  30  60  30  30
SSC   73  92  73  94 /  30  60  30  30
OGB   73  94  73  95 /  30  60  30  30

.CAE...
GA...NONE.
SC...NONE.

TTH

In the hours before

Special weather statement, Jun 19, 10:43 AM EDT, 4 hours 54 minutes before

GAZ040-063>065-077-SCZ015-016-018-020>022-025>031-035>038-041-192000-
SEVERE WEATHER OUTLOOK
NATIONAL WEATHER SERVICE COLUMBIA, SC
1050 AM EDT SUN JUN 18 2000

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

MOIST AND UNSTABLE AIR ALONG WITH AFTERNOON HEATING WILL TRIGGER
SCATTERED THUNDERSTORMS OVER THE AREA THIS AFTERNOON. THESE
THUNDERSTORMS WILL LIKELY CONTINUE INTO THE EVENING HOURS. A LAYER
OF MID LEVEL CLOUDS WILL SPREAD OVER THE AREA BY 200 PM AND HOLD
TEMPERATURES DOWN SOME. HOWEVER THE AIR MASS IS VERY SOUPY WITH
DEWPOINTS IN THE LOWER 70S AND AREAS OUTSIDE OF CLOUDS WILL HEAT
INTO THE MIDDLE 90S.

THESE THUNDERSTORMS WILL HAVE FREQUENT LIGHTNING...WIND GUSTS AROUND
40-50 MPH...AND HEAVY RAINFALL WITH AMOUNTS BETWEEN 1 AND 2 INCHES.
SMALL HAIL IS ALSO POSSIBLE.

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

REMEMBER...ALL THUNDERSTORMS CONTAIN DANGEROUS LIGHTNING. ALWAYS
MOVE INDOORS DURING A THUNDERSTORM.

TA

Local storm report, Jun 19, 2:42 PM EDT, 55 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE COLUMBIA, SC
242 PM EDT MON JUN 19 2000

TIME(EDT)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....

230 PM     HILDA                     SC   WIND DAMAGE
06/19/00   BARNWELL                       TREES DOWN REPORTED BY
                                          BARNWELL CO EOC

TA

Local storm report, Jun 19, 3:28 PM EDT, 9 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE COLUMBIA, SC
328 PM EDT MON JUN 19 2000

TIME(EDT)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....

310 PM     2 MILES NORTH OF GILBERT  SC   WIND DAMAGE
06/19/00   LEXINGTON                      TREES DOWN REPORTED BY
                                          LEXINGTON EOC

TA

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 19, 2:00 PM EDT	Severe Thunderstorm Warning	CAE	Barnwell	45 min
Jun 19, 2:50 PM EDT	Severe Thunderstorm Warning	CAE	Orangeburg	40 min
Jun 19, 2:58 PM EDT	Severe Thunderstorm Warning	CAE	Lexington	47 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.