Alert archive / Georgia / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 213, NWS Columbia, SC

August 2, 2012Burke County, Georgia

NWS Columbia, SC issued this severe thunderstorm warning at Aug 2, 2012, 1:59 PM EDT for Burke County, Georgia. It was in force for 46 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: Aug 2, 2012, 1:59 PM EDT (17:59 UTC)
Expired: Aug 2, 2012, 2:45 PM EDT
In force: 46 min
Issued by: NWS Columbia, SC
Area: Storm-based polygon

County Burke County, GA

The radar

The Charleston,SC radar (KCLX), 110 km from the middle of the area, began a volume at 17:59 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
Aug 2, 2:40 PM EDT	TSTM WND DMG	2 W Herndon, GA	POST OFFICE REPORTED TWO TREES DOWN ON SHADY LANE NEAR MIDVILLE.
Aug 2, 2:40 PM EDT	HAIL 1	2 Wnw Herndon, GA	POST OFFICE REPORTED 1-INCH HAIL ON BUNN STORE ROAD

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

The nearest sounding before it

Charleston AFB, SC (KCHS), launched 12:00Z, 6.0 hours before the alert went out and 203 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: 1922 J/kg
Mixed-layer CIN: -45 J/kg
Mixed-layer LCL: 1137 m above ground
0-6 km bulk shear: 18 kt
0-1 km storm-relative helicity: 6 m²/s²
0-3 km storm-relative helicity: 14 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.

817 
WUUS52 KCAE 021759
SVRCAE
GAC033-021845-
/O.NEW.KCAE.SV.W.0213.120802T1759Z-120802T1845Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE COLUMBIA SC
159 PM EDT THU AUG 2 2012

THE NATIONAL WEATHER SERVICE IN COLUMBIA HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHWESTERN BURKE COUNTY IN EAST CENTRAL GEORGIA

* UNTIL 245 PM EDT

* AT 155 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 11
  MILES NORTH OF MIDVILLE...OR 15 MILES SOUTHWEST OF WAYNESBORO...AND
  MOVING SOUTHEAST AT 10 MPH.

* SOME COMMUNITIES IN THE WARNING AREA INCLUDE MIDVILLE

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.

LAT...LON 3282 8230 3283 8232 3293 8228 3308 8230
      3311 8229 3315 8225 3294 8192 3293 8193
      3292 8196 3291 8209 3288 8212 3282 8214
      3280 8219
TIME...MOT...LOC 1759Z 309DEG 12KT 3298 8224

$$

HC

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 2, 2:51 PM EDT	Severe Thunderstorm Warning	CAE	Burke, Richmond	39 min

Nearby

Severe Thunderstorm Warnings in Georgia, 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.