Alert archive / South Carolina / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 89, NWS Columbia, SC

June 22, 2000Sumter County, South Carolina

NWS Columbia, SC issued this severe thunderstorm warning at Jun 22, 2000, 4:54 PM EDT for Sumter County, South Carolina. It was in force for 36 min. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued: Jun 22, 2000, 4:54 PM EDT (20:54 UTC)
Expired: Jun 22, 2000, 5:30 PM EDT
In force: 36 min
Issued by: NWS Columbia, SC
Area: Whole counties

County Sumter County, SC

The radar

The Columbia radar (KCAE), 68 km from the middle of the area, began a volume at 20:57 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.

What was reported inside it

Time	Report	Where	Remark
Jun 22, 5:15 PM EDT	Thunderstorm Wind 50 E	Wedgefield, SC	Sheriff reported trees down in Wedgefield.

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 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, 8.9 hours before the alert went out and 118 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.

000 
WUUS52 KCAE 222054
SVRCAE
SCC085-222130-

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

THE NATIONAL WEATHER SERVICE IN COLUMBIA HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  EASTERN SUMTER COUNTY IN CENTRAL SOUTH CAROLINA

* UNTIL 530 PM EDT.

* AT 452 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM OVER MAYESVILLE...OR ABOUT 9 MILES EAST OF
  SOUTH SUMTER...MOVING EAST AT 30 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  RURAL EASTERN SUMTER COUNTY AT 510 PM EDT
  RURAL NORTHEASTERN SUMTER COUNTY AT 520 PM EDT

THIS IS A 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 FORECAST OFFICE IN COLUMBIA.

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, 4:25 PM EDT	Severe Thunderstorm Warning	CAE	Clarendon	50 min
Jun 22, 4:29 PM EDT	Severe Thunderstorm Warning	CAE	Lexington, Richland	46 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.