Alert archive / Georgia / Severe Thunderstorm Warnings in 2008

Severe Thunderstorm Warning 292, NWS Charleston, SC

August 7, 2008Long County, Georgia

NWS Charleston, SC issued this severe thunderstorm warning at Aug 7, 2008, 1:40 PM EDT for Long County, Georgia. It was in force for 50 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Aug 7, 2008, 1:40 PM EDT (17:40 UTC)
Expired
Aug 7, 2008, 2:30 PM EDT
In force
50 min
Issued by
NWS Charleston, SC
Area
Storm-based polygon

County Long County, GA

The radar

The Charleston,SC radar (KCLX), 120 km from the middle of the area, began a volume at 17:43 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 nearest sounding before it

Jacksonville, FL (KJAX), launched 12:00Z, 5.7 hours before the alert went out and 139 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-pSkew-T log-p diagram, Jacksonville, FL at 12:00Z on 2008-08-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1877 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Jacksonville, FL at 12:00Z on 2008-08-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -40 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
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
1877 J/kg
Mixed-layer CIN
-89 J/kg
Mixed-layer LCL
1221 m above ground
0-6 km bulk shear
6 kt
0-1 km storm-relative helicity
-40 m²/s²
0-3 km storm-relative helicity
64 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

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 7, 11:00 AM EDT, 2 hours 40 minutes earlier.

Area forecast discussion, Aug 7, 11:00 AM EDT, 2 hours 40 minutes before
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Hazardous weather outlook, Aug 7, 4:20 AM EDT, 9 hours 20 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CHARLESTON SC
420 AM EDT THU AUG 7 2008

GAZ087-088-099>101-114>119-137>141-SCZ040-042>045-047>051-081000-
JENKINS-SCREVEN-CANDLER-BULLOCH-EFFINGHAM-TATTNALL-EVANS-
INLAND BRYAN-COASTAL BRYAN-INLAND CHATHAM-COASTAL CHATHAM-LONG-
INLAND LIBERTY-COASTAL LIBERTY-INLAND MCINTOSH-COASTAL MCINTOSH-
ALLENDALE-HAMPTON-INLAND COLLETON-DORCHESTER-BERKELEY-INLAND JASPER-
BEAUFORT-COASTAL COLLETON-CHARLESTON-COASTAL JASPER-
420 AM EDT THU AUG 7 2008

...HEAT ADVISORY IN EFFECT FROM 11 AM THIS MORNING TO 7 PM EDT THIS
EVENING...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHEAST GEORGIA AND
SOUTHEAST SOUTH CAROLINA.

.DAY ONE...TODAY AND TONIGHT.

PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE
INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS.

   HEAT ADVISORY.

SEVERE THUNDERSTORMS...THUNDERSTORMS WILL BECOME MORE NUMEROUS
FROM LATE THIS AFTERNOON THROUGH TONIGHT. THE RISK FOR SOME
STORMS TO BECOME SEVERE WILL INCREASE THROUGH THE LATE AFTERNOON
AND PEAK DURING THE EARLY TO MIDDLE EVENING. ISOLATED SEVERE
THUNDERSTORMS WILL REMAIN A POSSIBILITY DURING THE OVERNIGHT
HOURS. DAMAGING WINDS WILL BE THE PRIMARY THREAT...ALTHOUGH SOME
STORMS MAY ALSO PRODUCE LARGE HAIL. CONDITIONS WILL ALSO FAVOR
EXCESSIVE CLOUD TO GROUND LIGHTNING WITH ANY STORMS THAT
DEVELOP...AS WELL AS TORRENTIAL...POSSIBLY EXCESSIVE RAINFALL.

STAY TUNED TO NOAA WEATHER RADIO ALL HAZARDS...TV...OR YOUR LOCAL
NEWS SOURCE FOR THE LATEST WEATHER INFORMATION FROM THE NATIONAL
WEATHER SERVICE. ADDITIONAL INFORMATION IS ALSO AVAILABLE ON THE
INTERNET AT WWW.WEATHER.GOV/CHS.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY.

SEVERE THUNDERSTORMS...SCATTERED TO NUMEROUS THUNDERSTORMS WILL
DEVELOP ACROSS SOUTHEAST SOUTH CAROLINA AND SOUTHEAST GEORGIA
FRIDAY...CONTINUING INTO THE EVENING HOURS. SOME OF THE STORMS
COULD BECOME SEVERE WITH DAMAGING WINDS AND LARGE HAIL. INTENSE
LIGHTNING AND TORRENTIAL RAINFALL ARE ANTICIPATED WITH ALL STORMS.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED LATE THIS AFTERNOON AND THIS
EVENING.

AMZ330-350-352-354-374-081000-
CHARLESTON HARBOR-
WATERS FROM SOUTH SANTEE RIVER TO EDISTO BEACH SC OUT 20 NM-
WATERS FROM EDISTO BEACH SC TO SAVANNAH GA OUT 20 NM-
WATERS FROM SAVANNAH GA TO ALTAMAHA SOUND GA OUT 20 NM...INCLUDING
GRAYS REEF NATIONAL MARINE SANCTUARY-
WATERS FROM SAVANNAH GA TO ALTAMAHA SOUND GA EXTENDING FROM 20 TO
60 NM-
420 AM EDT THU AUG 7 2008

THIS HAZARDOUS WEATHER OUTLOOK IS FOR ATLANTIC COASTAL WATERS.

.DAY ONE...TODAY AND TONIGHT.

SEVERE THUNDERSTORMS...SCATTERED THUNDERSTORMS WILL DEVELOP OVER
THE COASTAL WATERS LATE THIS AFTERNOON THROUGH TONIGHT. A FEW
STORMS COULD BECOME SEVERE WITH WIND GUSTS IN EXCESS OF 50
KNOTS...HAIL...AND FREQUENT CLOUD TO WATER LIGHTNING.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY.

SEVERE THUNDERSTORMS...SCATTERED THUNDERSTORMS WILL CONTINUE OVER
THE COASTAL WATERS FRIDAY AND FRIDAY EVENING. A FEW SEVERE STORMS
MAY DEVELOP WITH WITH WIND GUSTS IN EXCESS OF 50 KNOTS...HAIL...
AND FREQUENT CLOUD TO WATER LIGHTNING.

.SPOTTER INFORMATION STATEMENT...

SEVERE WEATHER REPORTS FROM THE MARINE AREA ARE ALWAYS
APPRECIATED.

In the hours before

Special weather statement, Aug 7, 1:29 PM EDT, 11 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON SC
129 PM EDT THU AUG 7 2008

GAZ137-071800-
LONG-
129 PM EDT THU AUG 7 2008

...STRONG THUNDERSTORMS WILL IMPACT SOUTHERN LONG COUNTY THROUGH 200
PM EDT...

AT 126 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM CAPABLE OF PRODUCING SMALL HAIL...AND GUSTY WINDS
OF 30 TO 40 MPH.  THIS STORM WAS LOCATED 7 MILES WEST OF LUDOWICI...
OR ABOUT 6 MILES NORTH OF JESUP...MOVING EAST AT 9 MPH.

AREAS IN AND AROUND LUDOWICI WILL BE IMPACTED THROUGH 200 PM EDT.

EXCESSIVE CLOUD-TO-GROUND LIGHTNING CAN BE EXPECTED. POSTPONE OUTDOOR
ACTIVITIES PROMPTLY. GO QUICKLY INSIDE A COMPLETELY ENCLOSED
BUILDING.

BE ALERT FOR RAPIDLY CHANGING WEATHER CONDITIONS AS STORMS APPROACH.
BE READY TO TAKE IMMEDIATE ACTION IN CASE A SEVERE THUNDERSTORM
WARNING IS ISSUED FOR YOUR LOCATION.

PLEASE CONTACT THE NATIONAL WEATHER SERVICE IN CHARLESTON TOLL FREE
AT 1-888-383-2024 IF YOU OBSERVE SEVERE WEATHER SUCH AS HAIL...DOWNED
TREES...LIMBS AND POWER LINES.
Special weather statement, Aug 7, 1:33 PM EDT, 7 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON SC
133 PM EDT THU AUG 7 2008

GAZ100-115-071800-
BULLOCH-EVANS-
133 PM EDT THU AUG 7 2008

...STRONG THUNDERSTORMS WILL IMPACT SOUTH CENTRAL BULLOCH AND NORTH
CENTRAL EVANS COUNTIES THROUGH 200 PM EDT...

AT 131 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM CAPABLE OF PRODUCING SMALL HAIL...AND GUSTY WINDS
OF 30 TO 40 MPH.  THIS STORM WAS LOCATED NEAR EDNA...OR ABOUT 8 MILES
NORTHEAST OF CLAXTON...MOVING EAST AT 10 MPH.

AREAS IN AND AROUND DENMARK AND NEVILS WILL BE IMPACTED THROUGH 200
PM EDT.

EXCESSIVE CLOUD-TO-GROUND LIGHTNING CAN BE EXPECTED. POSTPONE OUTDOOR
ACTIVITIES PROMPTLY. GO QUICKLY INSIDE A COMPLETELY ENCLOSED
BUILDING.

BE ALERT FOR RAPIDLY CHANGING WEATHER CONDITIONS AS STORMS APPROACH.
BE READY TO TAKE IMMEDIATE ACTION IN CASE A SEVERE THUNDERSTORM
WARNING IS ISSUED FOR YOUR LOCATION.

PLEASE CONTACT THE NATIONAL WEATHER SERVICE IN CHARLESTON TOLL FREE
AT 1-888-383-2024 IF YOU OBSERVE SEVERE WEATHER SUCH AS HAIL...DOWNED
TREES...LIMBS AND POWER LINES.

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 6, 11:02 PM EDTSevere Thunderstorm WarningCHSBerkeley58 min
Aug 7, 2:48 PM EDTSevere Thunderstorm WarningCHSBeaufort, Jasper42 min
Aug 7, 3:23 PM EDTSpecial Marine WarningCHS112 min
Aug 7, 3:31 PM EDTSevere Thunderstorm WarningCHSBeaufort, Jasper59 min
Aug 7, 3:32 PM EDTSevere Thunderstorm WarningCHSAllendale, Hampton, Jasper43 min
Aug 7, 4:14 PM EDTSevere Thunderstorm WarningCHSBeaufort, Charleston, Colleton, Jasper61 min
Aug 7, 4:34 PM EDTSevere Thunderstorm WarningCHSAllendale, Colleton, Hampton56 min
Aug 7, 4:44 PM EDTSpecial Marine WarningCHS2 hr
Aug 7, 4:55 PM EDTSevere Thunderstorm WarningCHSColleton, Dorchester50 min
Aug 7, 5:10 PM EDTSpecial Marine WarningCHS2 hr
Aug 7, 5:12 PM EDTSevere Thunderstorm WarningCHSBerkeley, Charleston, Colleton, Dorchester78 min
Aug 7, 5:34 PM EDTSevere Thunderstorm WarningCHSBerkeley, Charleston, Dorchester86 min
Aug 7, 1:57 PM EDTSevere Thunderstorm WarningCHSBulloch, Candler48 min
Aug 7, 2:01 PM EDTSevere Thunderstorm WarningCHSLong44 min
Aug 7, 2:04 PM EDTSevere Thunderstorm WarningCHSCandler41 min
Aug 7, 2:40 PM EDTSevere Thunderstorm WarningCHSBryan, Chatham, Liberty, Long, McIntosh35 min
Aug 7, 2:41 PM EDTSevere Thunderstorm WarningCHSBryan, Bulloch, Effingham, Evans49 min
Aug 7, 3:14 PM EDTSevere Thunderstorm WarningCHSBulloch, Jenkins, Screven61 min
Aug 7, 3:15 PM EDTSevere Thunderstorm WarningCHSBryan, Chatham, Liberty, McIntosh60 min
Aug 7, 4:31 PM EDTSevere Thunderstorm WarningCHSLiberty, Long, McIntosh, Tattnall29 min

Nearby

Severe Thunderstorm Warnings in Georgia, 2008Every severe thunderstorm warning in 2008

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.