Alert archive / Georgia / Severe Thunderstorm Warnings in 2009
Severe Thunderstorm Warning 158, NWS Charleston, SC
NWS Charleston, SC issued this severe thunderstorm warning at Jun 16, 2009, 7:32 PM EDT for Chatham County, Effingham County, Georgia; Beaufort County, Jasper County, South Carolina. It was in force for 58 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
- Jun 16, 2009, 7:32 PM EDT (23:32 UTC)
- Expired
- Jun 16, 2009, 8:30 PM EDT
- In force
- 58 min
- Issued by
- NWS Charleston, SC
- Area
- Storm-based polygon
Counties Chatham County, GA, Effingham County, GA, Beaufort County, SC, Jasper County, SC
The radar
The Charleston,SC radar (KCLX), 42 km from the middle of the area, began a volume at 23:36 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, 11.5 hours before the alert went out and 119 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
- 983 J/kg
- Mixed-layer CIN
- -64 J/kg
- Mixed-layer LCL
- 999 m above ground
- 0-6 km bulk shear
- 21 kt
- 0-1 km storm-relative helicity
- 81 m²/s²
- 0-3 km storm-relative helicity
- 106 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.6
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 Jun 16, 7:04 PM EDT, 28 minutes earlier.
Area forecast discussion, Jun 16, 7:04 PM EDT, 28 minutes before
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</html>Hazardous weather outlook, Jun 16, 4:18 PM EDT, 3 hours 14 minutes before
HAZARDOUS WEATHER OUTLOOK...UPDATED NATIONAL WEATHER SERVICE CHARLESTON SC 418 PM EDT TUE JUN 16 2009 SCZ040-042>045-047>051-171000- ALLENDALE-HAMPTON-INLAND COLLETON-DORCHESTER-BERKELEY-INLAND JASPER- BEAUFORT-COASTAL COLLETON-CHARLESTON-COASTAL JASPER- 418 PM EDT TUE JUN 16 2009 ...SLIGHT RISK OF SEVERE WEATHER INTO TONIGHT... THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHEAST SOUTH CAROLINA. .DAY ONE...TONIGHT. SEVERE WEATHER...NUMEROUS THUNDERSTORMS WILL CONTINUE ACROSS SOUTHERN SOUTH CAROLINA INTO THIS EVENING. ANY THUNDERSTORMS MAY PRODUCE TORRENTIAL RAINFALL AND LOCALIZED FLOODING. ALSO...ISOLATED THUNDERSTORMS COULD BRIEFLY BECOME SEVERE...PRODUCING DAMAGING STRAIGHT-LINE WINDS AND PERHAPS EVEN HAIL THE SIZE OF PENNIES OR LARGER. THE HIGHEST POTENTIAL FOR EXCESSIVE RAINFALL AND SEVERE WEATHER WILL CONTINUE UNTIL 10 PM. STAY TUNED TO NOAA WEATHER RADIO ALL HAZARDS FOR THE LATEST INFORMATION. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY. HAZARDOUS HEAT...HOT AND HUMID CONDITIONS ARE EXPECTED FRIDAY THROUGH SUNDAY WITH HEAT INDICES IN EXCESS OF 105 POSSIBLE. HEAT ADVISORIES COULD EVENTUALLY BE REQUIRED. .SPOTTER INFORMATION STATEMENT... SPOTTERS ARE ENCOURAGED TO REPORT SEVERE WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES. GAZ087-088-099>101-114>119-137>141-171000- JENKINS-SCREVEN-CANDLER-BULLOCH-EFFINGHAM-TATTNALL-EVANS- INLAND BRYAN-COASTAL BRYAN-INLAND CHATHAM-COASTAL CHATHAM-LONG- INLAND LIBERTY-COASTAL LIBERTY-INLAND MCINTOSH-COASTAL MCINTOSH- 418 PM EDT TUE JUN 16 2009 THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHEAST GEORGIA. .DAY ONE...TONIGHT. NO HAZARDOUS WEATHER EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY. HAZARDOUS HEAT...HOT AND HUMID CONDITIONS ARE EXPECTED FRIDAY THROUGH SUNDAY WITH HEAT INDICES IN EXCESS OF 105 POSSIBLE. HEAT ADVISORIES COULD EVENTUALLY BE REQUIRED. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME. AMZ330-350-352-171000- 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- 418 PM EDT TUE JUN 16 2009 ...SLIGHT RISK OF SEVERE WEATHER INTO TONIGHT... THIS HAZARDOUS WEATHER OUTLOOK IS FOR ATLANTIC COASTAL WATERS. .DAY ONE...TONIGHT. SEVERE WEATHER...THUNDERSTORMS WILL CONTINUE TO IMPACT COASTAL WATERS ADJACENT TO SOUTH CAROLINA INTO THIS EVENING. ISOLATED THUNDERSTORMS MAY PRODUCE STRONG WIND GUSTS AND HAIL THE SIZE OF PENNIES OR LARGER...MAINLY BEFORE 10 PM. STAY TUNED TO NOAA WEATHER RADIO ALL HAZARDS FOR THE LATEST INFORMATION. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTERS ARE ENCOURAGED TO REPORT SEVERE WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES. AMZ354-374-171000- 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- 418 PM EDT TUE JUN 16 2009 THIS HAZARDOUS WEATHER OUTLOOK IS FOR ATLANTIC COASTAL WATERS. .DAY ONE...TONIGHT. NO HAZARDOUS WEATHER EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY. NO HAZARDOUS WEATHER EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.
In the hours before
Special weather statement, Jun 16, 6:12 PM EDT, 1 hour 20 minutes before
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</html>Local storm report, Jun 16, 6:36 PM EDT, 56 minutes before
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</html>Local storm report, Jun 16, 7:04 PM EDT, 28 minutes before
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</html>Special weather statement, Jun 16, 7:11 PM EDT, 21 minutes before
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</html>Special weather statement, Jun 16, 7:31 PM EDT, 1 minute before
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</html>The office that day
Everything else NWS Charleston, SC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 16, 2:15 AM EDT | Special Marine Warning | CHS | 2 hr | |
| Jun 16, 4:07 AM EDT | Special Marine Warning | CHS | 113 min | |
| Jun 16, 3:21 PM EDT | Special Marine Warning | CHS | 84 min | |
| Jun 16, 4:44 PM EDT | Special Marine Warning | CHS | 65 min | |
| Jun 16, 5:22 PM EDT | Special Marine Warning | CHS | 113 min | |
| Jun 16, 7:56 PM EDT | Severe Thunderstorm Warning | CHS | Bryan, Bulloch, Chatham, Effingham | 42 min |
| Jun 16, 7:59 PM EDT | Special Marine Warning | CHS | 2 hr | |
| Jun 16, 4:08 AM EDT | Areal Flood Advisory | CHS | Charleston | 74 min |
| Jun 16, 3:05 PM EDT | Severe Thunderstorm Warning | CHS | Charleston | 40 min |
| Jun 16, 4:07 PM EDT | Severe Thunderstorm Warning | CHS | Berkeley, Colleton, Dorchester | 53 min |
| Jun 16, 4:32 PM EDT | Severe Thunderstorm Warning | CHS | Berkeley, Charleston, Colleton, Dorchester | 58 min |
| Jun 16, 4:56 PM EDT | Severe Thunderstorm Warning | CHS | Berkeley, Dorchester | 39 min |
| Jun 16, 5:06 PM EDT | Severe Thunderstorm Warning | CHS | Beaufort, Charleston, Colleton | 24 min |
| Jun 16, 5:14 PM EDT | Severe Thunderstorm Warning | CHS | Berkeley, Charleston | 31 min |
| Jun 16, 5:26 PM EDT | Severe Thunderstorm Warning | CHS | Beaufort, Charleston, Colleton | 64 min |
| Jun 16, 5:42 PM EDT | Severe Thunderstorm Warning | CHS | Beaufort, Colleton, Hampton, Jasper | 63 min |
| Jun 16, 6:31 PM EDT | Severe Thunderstorm Warning | CHS | Beaufort | 59 min |
Nearby
Severe Thunderstorm Warnings in Georgia, 2009Severe Thunderstorm Warnings in South Carolina, 2009Every severe thunderstorm warning in 2009
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.