Alert archive / South Carolina / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 70, NWS Columbia, SC

June 15, 2000Calhoun County, South Carolina

NWS Columbia, SC issued this severe thunderstorm warning at Jun 15, 2000, 6:06 PM EDT for Calhoun County, South Carolina. It was in force for 24 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 15, 2000, 6:06 PM EDT (22:06 UTC)
Expired: Jun 15, 2000, 6:30 PM EDT
In force: 24 min
Issued by: NWS Columbia, SC
Area: Whole counties; the outline is the Mesonet’s reconstruction

County Calhoun County, SC

The radar

The Columbia radar (KCAE), 36 km from the middle of the area, began a volume at 22:14 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, 10.1 hours before the alert went out and 120 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: 1432 J/kg
Mixed-layer CIN: -25 J/kg
Mixed-layer LCL: 751 m above ground
0-6 km bulk shear: 7 kt
0-1 km storm-relative helicity: 57 m²/s²
0-3 km storm-relative helicity: 48 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.

271 
WUUS52 KCAE 152206
SVRCAE
SCC017-152230-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE COLUMBIA SC
606 PM EDT THU JUN 15 2000

THE NATIONAL WEATHER SERVICE IN COLUMBIA HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHERN CALHOUN COUNTY IN CENTRAL SOUTH CAROLINA

* UNTIL 630 PM EDT.

* AT 605 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM OVER ST. MATTHEWS...OR ABOUT 12 MILES NORTH OF
  BROOKDALE...MOVING NORTHEAST AT 20 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  RURAL NORTHERN CALHOUN COUNTY AT 620 PM EDT

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 FORECAST OFFICE IN COLUMBIA.

LAT...LON 3368 8102 3355 8086 3375 8063 3380 8087

CDL/AWP

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 15, 3:10 PM EDT, 2 hours 56 minutes earlier.

Area forecast discussion, Jun 15, 3:10 PM EDT, 2 hours 56 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE COLUMBIA, SC
310 PM EDT THU JUN 15 2000

ETA BRINGING IN VORT FROM THE GULF TONIGHT...LOOKING AT H2O VAPOR
WITH RUC OVERLAY...LOOKS LIKE VORT IS GETTING MORE ORGANIZED. LOCAL
ETA POP SCHEMES GIVE 90 PERCENT OVERNIGHT. FEEL COMFORTABLE WITH
THIS BUT WILL GO CHANCE. THINK S/W WILL SLIDE TO THE NORTH WITH TROF
HANGING BACK OVR MIDLANDS. WEAK VORTS WILL PASS THROUGH THE AREA
THROUGH SAT. LOOKS LIKE RIDGE WILL BUILD IN ENUF ON SUN TO KEEP LESS
MOISTURE FLOW INTO THE REGION. FRONT WILL SLOWLY APPROACH THE AREA
BY MON AND TUES. WILL INTRODUCE CHANCE OF RAIN DURING THIS TIME.

WILL PUT IN 50 POPS FOR NRN COUNTIES FOR TONIGHT.

FCSTID = 17
CAE   73  92  72  94 /  40  20  20  20
AGS   71  93  71  94 /  40  20  20  20
SSC   73  91  73  94 /  40  20  20  20
OGB   73  93  73  93 /  40  20  20  20

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

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 15, 4:33 PM EDT	Severe Thunderstorm Warning	CAE	Newberry	27 min
Jun 15, 4:40 PM EDT	Severe Thunderstorm Warning	CAE	Fairfield	35 min
Jun 15, 7:57 PM EDT	Severe Thunderstorm Warning	CAE	Lancaster	33 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.