Alert archive / South Carolina / Special Weather Statements in 2015

Special Weather Statement, NWS Charleston, SC

August 6, 2015Colleton County, South Carolina

NWS Charleston, SC issued this special weather statement at Aug 6, 2015, 1:54 PM EDT for Colleton County, South Carolina. It was in force for 36 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 6, 2015, 1:54 PM EDT (17:54 UTC)
Expired: Aug 6, 2015, 2:30 PM EDT
In force: 36 min
Issued by: NWS Charleston, SC

County Colleton County, SC

The radar

The Charleston,SC radar (KCLX), 31 km from the middle of the area, began a volume at 17:54 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, 5.9 hours before the alert went out and 70 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 619 J/kg
Mixed-layer CIN: -67 J/kg
Mixed-layer LCL: 974 m above ground
0-6 km bulk shear: 17 kt
0-1 km storm-relative helicity: 34 m²/s²
0-3 km storm-relative helicity: 36 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.

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What forecasters said that day

The local office's own words before this special weather statement 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 special weather statement went out at Aug 6, 11:04 AM EDT, 2 hours 50 minutes earlier.

Area forecast discussion, Aug 6, 11:04 AM EDT, 2 hours 50 minutes before

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        The site you requested is temporarily down for maintenance or an unexpected outage.
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Hazardous weather outlook, Aug 6, 4:41 AM EDT, 9 hours 13 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CHARLESTON SC
441 AM EDT THU AUG 6 2015

AMZ330-350-352-354-374-GAZ087-088-099>101-114>119-137>141-SCZ040-
042>045-047>052-071000-
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-COASTAL BRYAN-INLAND CHATHAM-COASTAL CHATHAM-LONG-
INLAND LIBERTY-COASTAL LIBERTY-INLAND MCINTOSH-COASTAL MCINTOSH-
ALLENDALE-HAMPTON-INLAND COLLETON-DORCHESTER-INLAND BERKELEY-
INLAND JASPER-BEAUFORT-COASTAL COLLETON-CHARLESTON-COASTAL JASPER-
TIDAL BERKELEY-
441 AM EDT THU AUG 6 2015

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

.DAY ONE...TODAY AND TONIGHT.

THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW.

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

THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ASSISTANCE IS NOT ANTICIPATED AT THIS TIME.

In the hours before

Special weather statement, Aug 6, 1:54 PM EDT, 0 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON SC
154 PM EDT THU AUG 6 2015

SCZ043-048-049-061830-
BEAUFORT SC-COASTAL COLLETON SC-BEAUFORT SC-INLAND COLLETON SC-
154 PM EDT THU AUG 6 2015

...STRONG THUNDERSTORMS WILL IMPACT PORTIONS OF COLLETON AND BEAUFORT
COUNTIES UNTIL 230 PM EDT...

AT 154 PM EDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM NEAR
YEMASSEE...MOVING NORTHEAST AT 25 MPH.

WINDS IN EXCESS OF 40 MPH WILL BE POSSIBLE WITH THIS STORM.

LOCATIONS IMPACTED INCLUDE...
YEMASSEE...POCOTALIGO...ASHEPOO...RITTER...SHELDON...
HENDERSONVILLE...WHITE HALL AND GARDENS CORNER.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

REPORT DAMAGE DIRECTLY TO THE CHARLESTON NATIONAL WEATHER SERVICE AT
1-888-383-2024 WHEN IT IS SAFE TO DO SO. YOU CAN ALSO EMAIL YOUR
REPORT TO CHS.SKYWARN@NOAA.GOV.

&&

LAT...LON 3267 8043 3257 8081 3267 8087 3271 8083
      3272 8085 3275 8086 3287 8063
TIME...MOT...LOC 1754Z 242DEG 22KT 3269 8078

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 6, 2:15 PM EDT	Special Weather Statement	CHS	Colleton	30 min
Aug 6, 2:31 PM EDT	Special Marine Warning	CHS		59 min
Aug 6, 2:35 PM EDT	Special Marine Warning	CHS		55 min
Aug 6, 2:41 PM EDT	Special Weather Statement	CHS	Charleston	34 min
Aug 6, 2:44 PM EDT	Severe Thunderstorm Warning	CHS	Charleston, Colleton	61 min
Aug 6, 2:52 PM EDT	Severe Thunderstorm Warning	CHS	Berkeley, Charleston, Dorchester	53 min
Aug 6, 3:32 PM EDT	Special Marine Warning	CHS		118 min
Aug 6, 5:45 PM EDT	Special Weather Statement	CHS	Allendale	30 min
Aug 6, 5:50 PM EDT	Severe Thunderstorm Warning	CHS	Allendale	55 min
Aug 6, 6:47 PM EDT	Special Weather Statement	CHS	Hampton	28 min
Aug 6, 7:11 PM EDT	Special Weather Statement	CHS	Clarendon	34 min
Aug 6, 7:16 PM EDT	Special Weather Statement	CHS	Colleton	29 min
Aug 6, 7:36 PM EDT	Special Weather Statement	CHS	Berkeley	24 min
Aug 6, 7:57 PM EDT	Special Weather Statement	CHS	Dorchester	33 min
Aug 6, 5:16 PM EDT	Special Weather Statement	CHS	Jenkins	29 min
Aug 6, 5:21 PM EDT	Severe Thunderstorm Warning	CHS	Jenkins	24 min
Aug 6, 5:56 PM EDT	Special Weather Statement	CHS	Candler, Jenkins	34 min
Aug 6, 6:02 PM EDT	Severe Thunderstorm Warning	CHS	Bulloch, Candler, Jenkins, Screven	58 min
Aug 6, 6:28 PM EDT	Severe Thunderstorm Warning	CHS	Bulloch, Effingham, Screven	30 min

Nearby

Special Weather Statements in South Carolina, 2015 Every special weather statement in 2015

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.