Alert archive / South Carolina / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 26, NWS Columbia, SC

May 25, 2001Saluda County, South Carolina

NWS Columbia, SC issued this severe thunderstorm warning at May 25, 2001, 10:20 PM EDT for Saluda County, South Carolina. It was in force for 40 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: May 25, 2001, 10:20 PM EDT (02:20 UTC)
Expired: May 25, 2001, 11:00 PM EDT
In force: 40 min
Issued by: NWS Columbia, SC
Area: Whole counties; the outline is the Mesonet’s reconstruction

County Saluda County, SC

The radar

The Columbia radar (KCAE), 65 km from the middle of the area, began a volume at 02:21 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
May 25, 10:35 PM EDT	Hail 1	Saluda, SC	Sheriff reported 1 inch hail in Saluda.

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

Charleston AFB, SC (KCHS), launched 00:00Z, 2.3 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: 41 J/kg
Mixed-layer CIN: -190 J/kg
Mixed-layer LCL: 1855 m above ground
0-6 km bulk shear: 41 kt
0-1 km storm-relative helicity: 31 m²/s²
0-3 km storm-relative helicity: 93 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.

621 
WUUS52 KCAE 260223
SVRCAE
SCC081-260300-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE COLUMBIA SC
1020 PM EDT FRI MAY 25 2001

THE NATIONAL WEATHER SERVICE HAS ISSUED A

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

* UNTIL 1100 PM EDT.

* AT 1016 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 8 MILES SOUTHWEST OF SALUDA...MOVING NORTHEAST
  AT 30 MPH.

* SOME LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...
    SALUDA.

THIS STORM WILL PRODUCE DAMAGING WINDS IN EXCESS OF 55 MPH.

THIS STORM WILL PRODUCE DIME SIZE HAIL.

LAT...LON 3394 8202 3381 8186 3402 8150 3419 8169

CDL/LV

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 May 25, 9:43 PM EDT, 37 minutes earlier.

Area forecast discussion, May 25, 9:43 PM EDT, 37 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE COLUMBIA SC
943 PM EDT FRI MAY 25 2001

WL UPDATE AND CONT CHC PCPN OVR NGT AS RUC40 KEEPING DEEP MOISTURE
OVER THE AREA WITH APPROACHING S/WV. TEMPS LK RSNBL WITH ONLY MINOR
ADJUSTMENTS.

FCSTID = 25
CAE   63  84  55  86 /  30  30   0  20
AGS   60  84  54  87 /  30  30   0  20
SSC   62  84  55  86 /  30  30   0  20
OGB   64  84  55  86 /  30  30   0  20

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

CDL

The office that day

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

Issued	Product	Office	Counties	Lasted
May 25, 10:47 PM EDT	Severe Thunderstorm Warning	CAE	Lexington, Newberry	28 min
May 25, 11:12 PM EDT	Severe Thunderstorm Warning	CAE	Fairfield, Richland	48 min
May 25, 11:14 PM EDT	Severe Thunderstorm Warning	CAE	Lancaster	31 min

Nearby

Severe Thunderstorm Warnings in South Carolina, 2001 Every severe thunderstorm warning in 2001

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.