Alert archive / Georgia / Severe Thunderstorm Warnings in 2005

Severe Thunderstorm Warning 79, NWS Columbia, SC

May 20, 2005Richmond County, Georgia; Aiken County, South Carolina

NWS Columbia, SC issued this severe thunderstorm warning at May 20, 2005, 2:23 PM EDT for Richmond County, Georgia; Aiken County, South Carolina. It was in force for 37 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: May 20, 2005, 2:23 PM EDT (18:23 UTC)
Expired: May 20, 2005, 3:00 PM EDT
In force: 37 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), 93 km from the middle of the area, began a volume at 18:24 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 watch it was issued in

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

Issued	Product	Office	Lasted
May 20, 1:20 PM EDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Charleston AFB, SC (KCHS), launched 12:00Z, 6.4 hours before the alert went out and 186 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: 449 J/kg
Mixed-layer CIN: -35 J/kg
Mixed-layer LCL: 746 m above ground
0-6 km bulk shear: 19 kt
0-1 km storm-relative helicity: 114 m²/s²
0-3 km storm-relative helicity: 130 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.0

Open this sounding in Storm Lab

The text

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

000 
WUUS52 KCAE 201824
SVRCAE
GAC245-SCC003-201900-
/O.NEW.KCAE.SV.W.0079.050520T1823Z-050520T1900Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE COLUMBIA SC
223 PM EDT FRI MAY 20 2005

THE NATIONAL WEATHER SERVICE IN COLUMBIA HAS ISSUED A

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

* UNTIL 300 PM EDT

* AT 220 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING LARGE HAIL AND DAMAGING
  WINDS.  THIS STORM WAS LOCATED NEAR AUGUSTA...MOVING EAST AT 35 MPH.

* SOME LOCATIONS IN OR NEAR THE PATH OF THE STORM INCLUDE...
  AUGUSTA AND FORT GORDON...
  JACKSON...
  NEW ELLENTON...

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 3348 8219 3331 8218 3332 8146 3351 8146

$$

MWC

The office that day

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

Issued	Product	Office	Counties	Lasted
May 20, 2:10 PM EDT	Severe Thunderstorm Warning	CAE	Columbia	35 min
May 20, 2:01 PM EDT	Severe Thunderstorm Warning	CAE	Edgefield, McCormick	29 min
May 20, 2:27 PM EDT	Severe Thunderstorm Warning	CAE	Aiken	33 min
May 20, 2:31 PM EDT	Severe Thunderstorm Warning	CAE	Bamberg	44 min
May 20, 2:44 PM EDT	Severe Thunderstorm Warning	CAE	Lexington	46 min
May 20, 2:59 PM EDT	Severe Thunderstorm Warning	CAE	Bamberg, Barnwell	46 min
May 20, 3:03 PM EDT	Severe Thunderstorm Warning	CAE	Aiken	42 min
May 20, 3:15 PM EDT	Severe Thunderstorm Warning	CAE	Barnwell, Orangeburg	45 min
May 20, 3:19 PM EDT	Severe Thunderstorm Warning	CAE	Calhoun, Lexington, Richland	41 min
May 20, 3:58 PM EDT	Severe Thunderstorm Warning	CAE	Calhoun, Clarendon, Sumter	47 min
May 20, 4:00 PM EDT	Severe Thunderstorm Warning	CAE	Sumter	45 min

Nearby

Severe Thunderstorm Warnings in Georgia, 2005 Severe Thunderstorm Warnings in South Carolina, 2005 Every severe thunderstorm warning in 2005

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.