Alert archive / Georgia / Severe Thunderstorm Warnings in 2007

Severe Thunderstorm Warning 3, NWS Columbia, SC

February 13, 2007Richmond County, Georgia; Aiken County, South Carolina

NWS Columbia, SC issued this severe thunderstorm warning at Feb 13, 2007, 6:05 PM EST for Richmond County, Georgia; Aiken 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 as issued, with what was reported inside it.

The facts

Issued: Feb 13, 2007, 6:05 PM EST (23:05 UTC)
Expired: Feb 13, 2007, 6:45 PM EST
In force: 40 min
Issued by: NWS Columbia, SC
Area: Counties, with a storm outline in the text

Counties Richmond County, GA, Aiken County, SC

The radar

The Columbia radar (KCAE), 85 km from the middle of the area, began a volume at 23:08 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
Feb 13, 6:10 PM EST	HAIL 0.75	1 S Augusta, GA	SKYWARN SPOTTER REPORTED THIS AT DUNBAR ROAD AND US 1.

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
Feb 13, 4:54 PM EST	Tornado Watch	SPC	7 hr

The nearest sounding before it

Charleston AFB, SC (KCHS), launched 12:00Z, 11.1 hours before the alert went out and 180 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: 180 J/kg
Mixed-layer CIN: -13 J/kg
Mixed-layer LCL: 573 m above ground
0-6 km bulk shear: 34 kt
0-1 km storm-relative helicity: 59 m²/s²
0-3 km storm-relative helicity: 68 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

Open this sounding in Storm Lab

The text

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

000 
WUUS52 KCAE 132305
SVRCAE
GAC245-SCC003-132345-
/O.NEW.KCAE.SV.W.0003.070213T2305Z-070213T2345Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE COLUMBIA SC
605 PM EST TUE FEB 13 2007

THE NATIONAL WEATHER SERVICE IN COLUMBIA HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  EASTERN RICHMOND COUNTY IN EAST CENTRAL GEORGIA
  AIKEN COUNTY IN CENTRAL SOUTH CAROLINA

* UNTIL 645 PM EST

* AT 604 PM EST...THE PUBLIC REPORTED A LINE OF SEVERE THUNDERSTORMS
  CAPABLE OF PRODUCING NICKEL SIZE HAIL...AND DAMAGING WINDS IN
  EXCESS OF 60 MPH.  THESE STORMS WERE LOCATED ALONG A LINE EXTENDING
  FROM NORTH AUGUSTA TO 11 MILES SOUTHWEST OF JACKSON...OR ALONG A
  LINE EXTENDING FROM NORTH AUGUSTA TO 13 MILES NORTH OF
  WAYNESBORO...AND MOVING NORTHEAST AT 35 MPH.

* SOME COMMUNITIES IN THE WARNING AREA INCLUDE NORTH AUGUSTA...
  BELVEDERE...CLEARWATER...GLOVERVILLE...JACKSON...AIKEN AND NEW
  ELLENTON.

A TORNADO WATCH IS IN EFFECT FOR THE WARNED AREA. SEVERE
THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES WITH LITTLE
OR NO ADVANCE WARNING. SEEK SHELTER IN AN INTERIOR ROOM ON THE LOWEST
LEVEL OF A HOUSE OR OTHER STURDY STRUCTURE IF A TORNADO IS SPOTTED.

REPORT LARGE HAIL...DAMAGING WINDS OR FLOODING TO YOUR COUNTY
SHERIFF...OR CALL THE NATIONAL WEATHER SERVICE TOLL FREE AT 1, 800, 7
7 5, 7 1 9 9.

LAT...LON 3350 8210 3322 8204 3326 8189 3320 8175
      3363 8123 3386 8158

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Feb 13, 3:09 PM EST	Lake Wind Advisory	CAE	Burke, Columbia, Lincoln, McDuffie, Richmond	28 hr
Feb 13, 5:47 PM EST	Tornado Warning	CAE	McCormick	28 min
Feb 13, 5:52 PM EST	Tornado Warning	CAE	Edgefield	38 min
Feb 13, 6:03 PM EST	Tornado Warning	CAE	Edgefield	27 min
Feb 13, 6:24 PM EST	Severe Thunderstorm Warning	CAE	Saluda	51 min

Nearby

Severe Thunderstorm Warnings in Georgia, 2007 Severe Thunderstorm Warnings in South Carolina, 2007 Every severe thunderstorm warning in 2007

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.