Alert archive / South Carolina / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 44, NWS Columbia, SC

March 24, 2012Bamberg County, Barnwell County, South Carolina

NWS Columbia, SC issued this severe thunderstorm warning at Mar 24, 2012, 9:39 PM EDT for Bamberg County, Barnwell County, South Carolina. It was in force for 51 min. 2 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Mar 24, 2012, 9:39 PM EDT (01:39 UTC)
Expired: Mar 24, 2012, 10:30 PM EDT
In force: 51 min
Issued by: NWS Columbia, SC
Area: Storm-based polygon

Counties Bamberg County, SC, Barnwell County, SC

The radar

The Charleston,SC radar (KCLX), 64 km from the middle of the area, began a volume at 01:41 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
Mar 24, 10:00 PM EDT	TSTM WND DMG	Bamberg, SC	SEVERAL TREES DOWN IN BAMBERG CITY LIMITS REPORTED BY SHERIFF.
Mar 24, 10:00 PM EDT	HAIL 1	Bamberg, SC	QUARTER SIZED HAIL REPORTED IN BAMBERG BY SHERIFF.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The watch it was issued in

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

Issued	Product	Office	Lasted
Mar 24, 8:43 PM EDT	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Charleston AFB, SC (KCHS), launched 00:00Z, 1.7 hours before the alert went out and 103 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: 218 J/kg
Mixed-layer CIN: -86 J/kg
Mixed-layer LCL: 911 m above ground
0-6 km bulk shear: 50 kt
0-1 km storm-relative helicity: 205 m²/s²
0-3 km storm-relative helicity: 213 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.6

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

904 
WUUS52 KCAE 250139
SVRCAE
SCC009-011-250230-
/O.NEW.KCAE.SV.W.0044.120325T0139Z-120325T0230Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE COLUMBIA SC
939 PM EDT SAT MAR 24 2012

THE NATIONAL WEATHER SERVICE IN COLUMBIA HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CENTRAL BAMBERG COUNTY IN CENTRAL SOUTH CAROLINA
  SOUTHEASTERN BARNWELL COUNTY IN CENTRAL SOUTH CAROLINA

* UNTIL 1030 PM EDT

* AT 938 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
  DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED 8 MILES
  EAST OF BARNWELL...AND MOVING EAST AT 40 MPH.

* SOME COMMUNITIES IN THE WARNING AREA INCLUDE DENMARK...BARNWELL AND
  BAMBERG

PRECAUTIONARY/PREPAREDNESS ACTIONS...

REPORT LARGE HAIL...DAMAGING WINDS OR FLOODING TO YOUR COUNTY
SHERIFF...OR CALL THE NATIONAL WEATHER SERVICE...TOLL FREE 1 877 6 3
3...6 7 7 2.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 200 AM EDT SUNDAY
MORNING FOR EAST CENTRAL GEORGIA AND CENTRAL SOUTH CAROLINA.

&&

LAT...LON 3328 8143 3335 8103 3331 8095 3324 8085
      3321 8084 3320 8082 3317 8080 3316 8081
      3311 8140
TIME...MOT...LOC 0139Z 256DEG 33KT 3321 8122

$$

AWP

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 24, 8:00 PM EDT	Severe Thunderstorm Warning	CAE	Calhoun, Kershaw, Lee, Richland, Sumter	45 min
Mar 24, 8:29 PM EDT	Severe Thunderstorm Warning	CAE	Bamberg, Barnwell, Orangeburg	46 min
Mar 24, 8:51 PM EDT	Tornado Warning	CAE	Bamberg, Orangeburg	39 min
Mar 24, 9:07 PM EDT	Flash Flood Warning	CAE	Lexington, Richland	53 min
Mar 24, 9:24 PM EDT	Severe Thunderstorm Warning	CAE	Orangeburg	66 min
Mar 25, 1:07 PM EDT	Special Weather Statement	CAE	Marlboro	23 min

Nearby

Severe Thunderstorm Warnings in South Carolina, 2012 Every severe thunderstorm warning in 2012

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.