Alert archive / Georgia / Special Weather Statements in 2011

Special Weather Statement, NWS Charleston, SC

August 22, 2011Chatham County, Georgia

NWS Charleston, SC issued this special weather statement at Aug 22, 2011, 3:08 PM EDT for Chatham County, Georgia. 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
Aug 22, 2011, 3:08 PM EDT (19:08 UTC)
Expired
Aug 22, 2011, 3:45 PM EDT
In force
37 min
Issued by
NWS Charleston, SC

County Chatham County, GA

The radar

The Charleston,SC radar (KCLX), 81 km from the middle of the area, began a volume at 19:08 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

Charleston AFB, SC (KCHS), launched 12:00Z, 7.1 hours before the alert went out and 143 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, Charleston AFB, SC at 12:00Z on 2011-08-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2258 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, Charleston AFB, SC at 12:00Z on 2011-08-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 105 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
2258 J/kg
Mixed-layer CIN
-55 J/kg
Mixed-layer LCL
686 m above ground
0-6 km bulk shear
18 kt
0-1 km storm-relative helicity
105 m²/s²
0-3 km storm-relative helicity
79 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.

885 
WWUS82 KCHS 221908
SPSCHS

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON SC
308 PM EDT MON AUG 22 2011

GAZ116-117-119-221945-
COASTAL BRYAN-COASTAL CHATHAM-INLAND BRYAN-
308 PM EDT MON AUG 22 2011

...STRONG THUNDERSTORMS WILL IMPACT PORTIONS OF BRYAN AND CHATHAM
COUNTIES THROUGH 345 PM EDT...

AT 304 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
STRONG THUNDERSTORMS...ALONG A LINE EXTENDING FROM FORT PULASKI
NATIONAL MONUMENT TO OAK LEVEL...MOVING EAST AT 15 MPH.

SOME LOCATIONS THAT WILL BE AFFECTED INCLUDE...
BELFAST...FORT MCALLISTER...FORT PULASKI NATIONAL MONUMENT...ISLE OF
HOPE...KELLER...MONTGOMERY...OSSABAW SOUND...SKIDAWAY ISLAND...TYBEE
ISLAND...WASSAW ISLAND AND WILMINGTON ISLAND...

PREPARE NOW FOR THE FOLLOWING HAZARDS...
GUSTY WINDS OF 40 TO 50 MPH...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

&&

LAT...LON 3183 8132 3206 8094 3204 8092 3203 8087
      3203 8084 3202 8083 3197 8085 3194 8091
      3191 8093 3183 8103 3181 8103 3176 8107
TIME...MOT...LOC 1908Z 282DEG 12KT 3200 8091 3184 8118

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 22, 1:26 PM EDTSpecial Weather StatementCHSJenkins, Screven34 min
Aug 22, 1:47 PM EDTSpecial Weather StatementCHSBryan28 min
Aug 22, 1:57 PM EDTSpecial Weather StatementCHSTattnall33 min
Aug 22, 1:59 PM EDTSpecial Weather StatementCHSJenkins, Screven31 min
Aug 22, 2:05 PM EDTSevere Thunderstorm WarningCHSJenkins, Screven55 min
Aug 22, 2:15 PM EDTSpecial Weather StatementCHSBryan, Chatham30 min
Aug 22, 2:32 PM EDTSpecial Weather StatementCHSLong28 min
Aug 22, 2:35 PM EDTSpecial Weather StatementCHSEffingham25 min
Aug 22, 3:07 PM EDTSpecial Marine WarningCHS53 min
Aug 22, 3:11 PM EDTSevere Thunderstorm WarningCHSEffingham, Screven64 min
Aug 22, 3:13 PM EDTSpecial Marine WarningCHS92 min
Aug 22, 3:16 PM EDTSpecial Weather StatementCHSLong29 min
Aug 22, 3:20 PM EDTSpecial Weather StatementCHSMcIntosh25 min
Aug 22, 3:48 PM EDTSpecial Weather StatementCHSMcIntosh27 min
Aug 22, 3:52 PM EDTSpecial Weather StatementCHSBulloch, Effingham23 min
Aug 22, 3:54 PM EDTSpecial Marine WarningCHS66 min
Aug 22, 3:57 PM EDTSevere Thunderstorm WarningCHSBryan, Bulloch, Effingham, Evans63 min
Aug 22, 4:00 PM EDTSpecial Marine WarningCHS45 min
Aug 22, 4:14 PM EDTSevere Thunderstorm WarningCHSLiberty, McIntosh31 min
Aug 22, 4:35 PM EDTSpecial Marine WarningCHS115 min
Aug 22, 4:36 PM EDTSpecial Weather StatementCHSBryan, Chatham24 min
Aug 22, 4:40 PM EDTSpecial Marine WarningCHS2 hr
Aug 22, 5:03 PM EDTSpecial Weather StatementCHSBryan, Chatham, Liberty42 min
Aug 22, 5:08 PM EDTSpecial Weather StatementCHSEvans, Tattnall37 min
Aug 22, 5:21 PM EDTSevere Thunderstorm WarningCHSBryan, Chatham, Liberty54 min
Aug 22, 5:29 PM EDTSevere Thunderstorm WarningCHSBryan, Evans, Liberty, Long, Tattnall37 min
Aug 22, 6:13 PM EDTSpecial Weather StatementCHSJenkins32 min
Aug 22, 6:16 PM EDTSpecial Weather StatementCHSLong29 min
Aug 22, 6:23 PM EDTSpecial Marine WarningCHS2 hr
Aug 22, 6:41 PM EDTSpecial Marine WarningCHS2 hr
Aug 22, 6:44 PM EDTSevere Thunderstorm WarningCHSLong, McIntosh, Tattnall43 min
Aug 22, 6:48 PM EDTSpecial Weather StatementCHSBulloch27 min
Aug 22, 7:13 PM EDTSevere Thunderstorm WarningCHSBulloch, Candler, Effingham, Screven62 min
Aug 22, 7:57 PM EDTSpecial Weather StatementCHSEffingham33 min
Aug 22, 7:59 PM EDTSpecial Weather StatementCHSScreven31 min
Aug 22, 2:31 PM EDTSpecial Weather StatementCHSHampton29 min
Aug 22, 2:34 PM EDTSpecial Weather StatementCHSAllendale26 min
Aug 22, 3:01 PM EDTSpecial Weather StatementCHSHampton29 min
Aug 22, 3:04 PM EDTSpecial Weather StatementCHSCharleston26 min
Aug 22, 3:24 PM EDTAreal Flood AdvisoryCHSCharleston66 min
Aug 22, 3:39 PM EDTSpecial Weather StatementCHSCharleston36 min
Aug 22, 3:42 PM EDTSevere Thunderstorm WarningCHSCharleston48 min
Aug 22, 4:02 PM EDTSevere Thunderstorm WarningCHSBeaufort, Hampton, Jasper58 min
Aug 22, 4:17 PM EDTSpecial Weather StatementCHSDorchester28 min
Aug 22, 4:29 PM EDTSpecial Weather StatementCHSCharleston31 min
Aug 22, 5:00 PM EDTSevere Thunderstorm WarningCHSBeaufort, Colleton45 min
Aug 22, 5:20 PM EDTSpecial Weather StatementCHSHampton25 min
Aug 22, 5:32 PM EDTSevere Thunderstorm WarningCHSColleton, Dorchester58 min
Aug 22, 5:52 PM EDTSpecial Weather StatementCHSBerkeley38 min
Aug 22, 6:42 PM EDTSevere Thunderstorm WarningCHSCharleston, Colleton, Dorchester63 min
Aug 22, 6:46 PM EDTSpecial Weather StatementCHSCharleston29 min
Aug 22, 7:21 PM EDTSevere Thunderstorm WarningCHSBerkeley, Charleston, Dorchester54 min
Aug 22, 7:33 PM EDTSpecial Weather StatementCHSHampton42 min

Nearby

Special Weather Statements in Georgia, 2011Every special weather statement in 2011

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.