Alert archive / Georgia / Severe Thunderstorm Warnings in 2002
Severe Thunderstorm Warning 82, NWS Charleston, SC
NWS Charleston, SC issued this severe thunderstorm warning at Aug 18, 2002, 3:28 PM EDT for Chatham County, Georgia. It was in force for 62 min. 3 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
- Aug 18, 2002, 3:28 PM EDT (19:28 UTC)
- Expired
- Aug 18, 2002, 4:30 PM EDT
- In force
- 62 min
- Issued by
- NWS Charleston, SC
- Area
- Whole counties
County Chatham County, GA
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Aug 18, 3:45 PM EDT | Thunderstorm Wind 50 E | Savannah, GA | Several trees and large limbs were down. A tree fell on a car at Skidaway Road and 52nd Street. |
| Aug 18, 4:05 PM EDT | Hail 0.88 | Thunderbolt, GA | |
| Aug 18, 4:10 PM EDT | Hail 1.25 | Savannah, GA |
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, 7.5 hours before the alert went out and 174 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.
- Mixed-layer CAPE
- 705 J/kg
- Mixed-layer CIN
- -81 J/kg
- Mixed-layer LCL
- 942 m above ground
- 0-6 km bulk shear
- 6 kt
- 0-1 km storm-relative helicity
- -28 m²/s²
- 0-3 km storm-relative helicity
- -1 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS52 KCHS 181928 SVRCHS GAC051-182030- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE CHARLESTON SC 325 PM EDT SUN AUG 18 2002 THE NATIONAL WEATHER SERVICE IN CHARLESTON HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... * UNTIL 430 PM EDT. * AT 325 PM EDT...RADAR INDICATED A SEVERE THUNDERSTORM ALONG THE SAVANNAH RIVER...OR ABOUT 5 MILES EAST OF DOWNTOWN SAVANNAH...MOVING SOUTH AT 10 MPH. * LOCATIONS IN THE PATH OF THIS STORM INCLUDE SAVANNAH AND THUNDERBOLT. DIME SIZE HAIL AND 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 3202 8090 3207 8104 3196 8116 3179 8095
What forecasters said that day
The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Charleston, SC wrote its last area forecast discussion before this severe thunderstorm warning went out at Aug 18, 10:00 AM EDT, 5 hours 28 minutes earlier.
Area forecast discussion, Aug 18, 10:00 AM EDT, 5 hours 28 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE CHARLESTON SC 10 AM EDT SUN AUG 18 2002 CONVECTION BEGINNING TO FIRE ACROSS SC/GA SO WILL REMOVE AFTERNOON WORDING. EVERYTHING ELSE LOOKS GOOD. MARINE...PRES GRADIENT MUCH TIGHTER OVER THE FAR N SECTIONS OF THE COASTAL WATERS THIS AM...WITH MHX SOUNDING SHOWING 15-20 KTS IN THE BOUNDARY LAYER. THIS SHOULD BE ENOUGH TO PREVENT MUCH IF ANY ATLC SEA BREEZE N OF CHS THIS AFTRN. I PLAN ON RAISING WINDS AND SEAS OVER N PORTIONS...LOWERING SEAS SLGTLY TO THE S...AND INCLUDE MENTION OF SEA BREEZE OVER GA WATERS WHERE FLOW IS MUCH LIGHTER. WITH SHORT WAVE MOVING INTO THE AREA FROM THE N AND SOME DIFLUENCE ALOFT...CONVECTION IS ALREADY FORMING OVER SC AND OFFSHR. WILL MAINTAIN SCT COVERAGE. .CHS... GA...NONE. SC...NONE. HSA/PM
The office that day
Everything else NWS Charleston, SC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 18, 3:33 PM EDT | Severe Thunderstorm Warning | CHS | Chatham | 57 min |
Nearby
Severe Thunderstorm Warnings in Georgia, 2002Every 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.