Alert archive / South Carolina / Severe Thunderstorm Warnings in 2014
Severe Thunderstorm Warning 100, NWS Charleston, SC
NWS Charleston, SC issued this severe thunderstorm warning at Sep 17, 2014, 6:41 PM EDT for Beaufort County, Jasper County, South Carolina; Effingham County, Georgia. It was in force for 48 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
- Sep 17, 2014, 6:41 PM EDT (22:41 UTC)
- Expired
- Sep 17, 2014, 7:29 PM EDT
- In force
- 48 min
- Issued by
- NWS Charleston, SC
- Area
- Storm-based polygon
Counties Effingham County, GA, Beaufort County, SC, Jasper County, SC
The radar
The Charleston,SC radar (KCLX), 30 km from the middle of the area, began a volume at 22:41 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, 10.7 hours before the alert went out and 111 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
- 886 J/kg
- Mixed-layer CIN
- -38 J/kg
- Mixed-layer LCL
- 584 m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- -8 m²/s²
- 0-3 km storm-relative helicity
- -20 m²/s²
- Significant tornado parameter
- -0.0
- Supercell composite
- -0.3
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 Sep 17, 5:59 PM EDT, 42 minutes earlier.
Area forecast discussion, Sep 17, 5:59 PM EDT, 42 minutes before
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HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE CHARLESTON SC 432 PM EDT WED SEP 17 2014 AMZ330-350-352-354-374-GAZ087-088-099>101-114>116-118-137-138-140- SCZ040-042>045-047-052-182045- 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-JENKINS-SCREVEN-CANDLER-BULLOCH-EFFINGHAM-TATTNALL-EVANS- INLAND BRYAN-INLAND CHATHAM-LONG-INLAND LIBERTY-INLAND MCINTOSH- ALLENDALE-HAMPTON-INLAND COLLETON-DORCHESTER-INLAND BERKELEY- INLAND JASPER-TIDAL BERKELEY- 432 PM EDT WED SEP 17 2014 THIS HAZARDOUS WEATHER OUTLOOK IS FOR ATLANTIC COASTAL WATERS...SOUTHEAST GEORGIA AND SOUTHEAST SOUTH CAROLINA. .DAY ONE...TONIGHT. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ASSISTANCE IS NOT ANTICIPATED AT THIS TIME. GAZ117-119-139-141-SCZ048>051-182045- COASTAL BRYAN-COASTAL CHATHAM-COASTAL LIBERTY-COASTAL MCINTOSH- BEAUFORT-COASTAL COLLETON-CHARLESTON-COASTAL JASPER- 432 PM EDT WED SEP 17 2014 ...MODERATE RISK FOR RIP CURRENTS IN EFFECT THROUGH THURSDAY EVENING... THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHEAST GEORGIA AND SOUTHEAST SOUTH CAROLINA. .DAY ONE...TONIGHT. PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS. MODERATE RISK FOR RIP CURRENTS. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY. PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS. MODERATE RISK FOR RIP CURRENTS. RIP CURRENTS...LONG PERIOD SWELLS FROM DISTANT HURRICANE EDOUARD COMBINED WITH LIGHT ONSHORE WINDS WILL SUPPORT AN ENHANCED RISK OF RIP CURRENTS ON THURSDAY. AN ENHANCED RISK OF RIP CURRENTS WILL REMAIN POSSIBLE FRIDAY THROUGH SUNDAY AS STRONGER NORTHEAST WINDS DEVELOP OVER THE AREA. .SPOTTER INFORMATION STATEMENT... SPOTTER ASSISTANCE IS NOT ANTICIPATED AT THIS TIME.
In the hours before
Local storm report, Sep 17, 5:03 PM EDT, 1 hour 38 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHARLESTON SC
503 PM EDT WED SEP 17 2014
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0444 PM HAIL RIDGEVILLE 33.10N 80.32W
09/17/2014 E0.70 INCH DORCHESTER SC TRAINED SPOTTER
&&
EVENT NUMBER CHS1401052
TIMTESpecial weather statement, Sep 17, 5:27 PM EDT, 1 hour 14 minutes 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 |
|---|---|---|---|---|
| Sep 16, 8:07 PM EDT | Special Weather Statement | CHS | Hampton | 23 min |
| Sep 16, 8:32 PM EDT | Special Weather Statement | CHS | Hampton | 43 min |
| Sep 17, 3:32 PM EDT | Areal Flood Advisory | CHS | Beaufort | 3 hr |
| Sep 17, 4:23 PM EDT | Special Weather Statement | CHS | Hampton | 52 min |
| Sep 17, 4:32 PM EDT | Special Weather Statement | CHS | Beaufort | 43 min |
| Sep 17, 4:48 PM EDT | Special Weather Statement | CHS | Dorchester | 42 min |
| Sep 17, 5:06 PM EDT | Severe Thunderstorm Warning | CHS | Colleton, Hampton, Jasper | 54 min |
| Sep 17, 5:27 PM EDT | Special Weather Statement | CHS | Berkeley, Dorchester | 48 min |
| Sep 17, 5:33 PM EDT | Areal Flood Advisory | CHS | Berkeley, Colleton, Dorchester | 3 hr |
| Sep 17, 6:03 PM EDT | Special Weather Statement | CHS | Dorchester | 42 min |
| Sep 17, 6:06 PM EDT | Special Weather Statement | CHS | Jasper | 39 min |
| Sep 17, 6:18 PM EDT | Special Weather Statement | CHS | Berkeley | 42 min |
| Sep 17, 6:47 PM EDT | Special Weather Statement | CHS | Colleton | 28 min |
| Sep 16, 9:16 PM EDT | Special Weather Statement | CHS | Effingham | 44 min |
| Sep 17, 3:45 PM EDT | Areal Flood Advisory | CHS | Bryan | 3 hr |
| Sep 17, 5:59 PM EDT | Special Weather Statement | CHS | Bryan | 46 min |
| Sep 17, 6:45 PM EDT | Special Weather Statement | CHS | Bryan | 30 min |
Nearby
Severe Thunderstorm Warnings in South Carolina, 2014Severe Thunderstorm Warnings in Georgia, 2014Every severe thunderstorm warning in 2014
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.