Alert archive / South Carolina / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 87, NWS Columbia, SC

June 22, 2000Clarendon County, South Carolina

NWS Columbia, SC issued this severe thunderstorm warning at Jun 22, 2000, 4:25 PM EDT for Clarendon County, South Carolina. It was in force for 50 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 22, 2000, 4:25 PM EDT (20:25 UTC)
Expired: Jun 22, 2000, 5:15 PM EDT
In force: 50 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), 95 km from the middle of the area, began a volume at 20:27 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jun 22, 1:30 PM EDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Charleston AFB, SC (KCHS), launched 12:00Z, 8.4 hours before the alert went out and 78 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: 2256 J/kg
Mixed-layer CIN: -2 J/kg
Mixed-layer LCL: 498 m above ground
0-6 km bulk shear: 3 kt
0-1 km storm-relative helicity: -23 m²/s²
0-3 km storm-relative helicity: 64 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.

635 
WUUS52 KCAE 222026
SVRCAE
SCC027-222115-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE COLUMBIA SC
425 PM EDT THU JUN 22 2000

THE NATIONAL WEATHER SERVICE IN COLUMBIA HAS ISSUED A

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

* UNTIL 515 PM EDT.

* AT 422 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  A SEVERE THUNDERSTORM OVER LAKE MARION IN CLARENDON COUNTY...OR
  ABOUT 15 MILES SOUTH OF MANNING...MOVING NORTHEAST AT 20 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  RURAL SOUTHERN CLARENDON COUNTY AT 440 PM EDT
  RURAL CENTRAL CLARENDON COUNTY AT 450 PM EDT
  RURAL EASTERN CLARENDON COUNTY AT 510 PM EDT

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

BOATERS ON LAKE MARION SHOULD SEEK SAFE PORT IMMEDIATELY.

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

LAT...LON 3350 8042 3337 8026 3367 7984 3385 8005

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 22, 1:59 PM EDT	Severe Thunderstorm Warning	CAE	Aiken	61 min
Jun 22, 2:55 PM EDT	Severe Thunderstorm Warning	CAE	Bamberg	35 min
Jun 22, 3:18 PM EDT	Severe Thunderstorm Warning	CAE	Orangeburg	42 min
Jun 22, 3:35 PM EDT	Severe Thunderstorm Warning	CAE	Lee	25 min
Jun 22, 3:43 PM EDT	Severe Thunderstorm Warning	CAE	Richland	47 min
Jun 22, 3:56 PM EDT	Severe Thunderstorm Warning	CAE	Lexington, Newberry	34 min
Jun 22, 4:29 PM EDT	Severe Thunderstorm Warning	CAE	Lexington, Richland	46 min
Jun 22, 4:54 PM EDT	Severe Thunderstorm Warning	CAE	Sumter	36 min
Jun 22, 4:56 PM EDT	Severe Thunderstorm Warning	CAE	Kershaw	49 min
Jun 22, 5:11 PM EDT	Severe Thunderstorm Warning	CAE	Clarendon	34 min
Jun 22, 5:41 PM EDT	Severe Thunderstorm Warning	CAE	Barnwell	49 min
Jun 22, 6:04 PM EDT	Tornado Warning	CAE	Barnwell	26 min
Jun 22, 6:26 PM EDT	Severe Thunderstorm Warning	CAE	Bamberg	49 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.