Alert archive / Georgia / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 41, NWS Charleston, SC

June 30, 2002Evans County, Tattnall County, Georgia

NWS Charleston, SC issued this severe thunderstorm warning at Jun 30, 2002, 5:59 PM EDT for Evans County, Tattnall County, Georgia. It was in force for 31 min. 2 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued: Jun 30, 2002, 5:59 PM EDT (21:59 UTC)
Expired: Jun 30, 2002, 6:30 PM EDT
In force: 31 min
Issued by: NWS Charleston, SC
Area: Whole counties

Counties Evans County, GA, Tattnall County, GA

The radar

The Charleston,SC radar (KCLX), 107 km from the middle of the area, began a volume at 22:00 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
Jun 30, 6:10 PM EDT	Thunderstorm Wind 50 E	Claxton, GA	Several trees and large limbs were down.
Jun 30, 6:17 PM EDT	Thunderstorm Wind 50 E	Glennville, GA	Several large limbs were downed along Georgia State Road # 144.

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

Jacksonville, FL (KJAX), launched 12:00Z, 10.0 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: 1063 J/kg
Mixed-layer CIN: -45 J/kg
Mixed-layer LCL: 841 m above ground
0-6 km bulk shear: 2 kt
0-1 km storm-relative helicity: -24 m²/s²
0-3 km storm-relative helicity: -15 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.

710 
WUUS52 KCHS 302159
SVRCHS
GAC109-267-302230-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE CHARLESTON SC
558 PM EDT SUN JUN 30 2002

THE NATIONAL WEATHER SERVICE IN CHARLESTON HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHERN EVANS COUNTY IN SOUTHEAST GEORGIA.
  EAST TATTNALL COUNTY IN SOUTHEAST GEORGIA.

* UNTIL 630 PM EDT.

* AT 558 PM EDT...RADAR INDICATED A SEVERE THUNDERSTORM 7 MILES EAST
  OF MIDWAY...OR ABOUT 10 MILES SOUTHEAST OF CLAXTON...MOVING WEST AT
  25 MPH.

60 MPH WINDS ARE EXPECTED IN THE WARNED AREA.

BE ALERT FOR RAPIDLY CHANGING WEATHER CONDITIONS AS STORMS APPROACH.
SEEK SHELTER IN A STURDY BUILDING AND STAY AWAY FROM WINDOWS.

$$

LAT...LON 3212 8204 3194 8200 3201 8182 3213 8178

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 30, 4:57 PM EDT	Severe Thunderstorm Warning	CHS	Bulloch, Effingham	48 min

Nearby

Severe Thunderstorm Warnings in Georgia, 2002 Every severe thunderstorm warning in 2002

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.