Alert archive / South Carolina / Special Weather Statements in 2015

Special Weather Statement, NWS Charleston, SC

July 23, 2015Jasper County, South Carolina

NWS Charleston, SC issued this special weather statement at Jul 23, 2015, 3:39 PM EDT for Jasper 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
Jul 23, 2015, 3:39 PM EDT (19:39 UTC)
Expired
Jul 23, 2015, 4:15 PM EDT
In force
36 min
Issued by
NWS Charleston, SC

County Jasper County, SC

The radar

The Charleston,SC radar (KCLX), 13 km from the middle of the area, began a volume at 19:40 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, 7.7 hours before the alert went out and 93 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 2015-07-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 381 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 2015-07-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 5 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
381 J/kg
Mixed-layer CIN
-139 J/kg
Mixed-layer LCL
1556 m above ground
0-6 km bulk shear
14 kt
0-1 km storm-relative helicity
5 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 Jul 23, 1:53 PM EDT, 1 hour 46 minutes earlier.

Area forecast discussion, Jul 23, 1:53 PM EDT, 1 hour 46 minutes before
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Hazardous weather outlook, Jul 23, 3:18 AM EDT, 12 hours 21 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CHARLESTON SC
318 AM EDT THU JUL 23 2015

AMZ330-350-352-354-374-GAZ087-088-099>101-114>119-137>141-SCZ040-
042>045-047>052-240730-
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-
318 AM EDT THU JUL 23 2015

...SEVERE THUNDERSTORMS POSSIBLE THIS AFTERNOON AND EVENING...

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

.DAY ONE...TODAY AND TONIGHT.

SEVERE THUNDERSTORMS...NUMEROUS SHOWERS AND THUNDERSTORMS ARE
EXPECTED TO AFFECT SOUTHEAST SOUTH CAROLINA AND SOUTHEAST GEORGIA
THIS AFTERNOON AND EVENING. A FEW OF THESE THUNDERSTORMS WILL
LIKELY BECOME SEVERE WITH DAMAGING WINDS IN EXCESS OF 60 MPH.
FREQUENT CLOUD TO GROUND LIGHTNING AND LOCALLY HEAVY RAINFALL WILL
ALSO BE POSSIBLE WITH ANY THUNDERSTORMS THAT DEVELOP TODAY. THE
RISK FOR SEVERE THUNDERSTORMS WILL BE THE GREATEST BETWEEN 2 PM
AND 8 PM.

PEOPLE ACROSS SOUTHEAST SOUTH CAROLINA AND SOUTHEAST GEORGIA...
INCLUDING THE ADJACENT COASTAL WATERS...SHOULD REMAIN WEATHER
AWARE TODAY. BE ALERT FOR CHANGING WEATHER CONDITIONS AND BE
PREPARED TO TAKE ACTION SHOULD THREATENING WEATHER APPROACH OR IF
A WARNING IS ISSUED FOR YOUR AREA.

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

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

PLEASE RELAY ANY REPORTS OF HAZARDOUS WEATHER INCLUDING...BUT NOT
LIMITED TO LARGE HAIL...DAMAGING WINDS...AND FLOODING TO THE
NATIONAL WEATHER SERVICE IN CHARLESTON AT 1-888-383-2024.

In the hours before

Local storm report, Jul 23, 12:22 PM EDT, 3 hours 17 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHARLESTON SC
1222 PM EDT THU JUL 23 2015

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0623 PM     TSTM WND DMG     6 N TYBEE ISLAND        32.10N  80.87W
07/22/2015                   BEAUFORT           SC   CITY OFFICIAL

            BLOODY POINT RESORT REPORTS NUMEROUS TREES DOWN IN BOTH
            THE BLOODY POINT AND OAKRIDGE PLANTATION COMMUNITY

&&

EVENT NUMBER CHS1500768

CB
Special weather statement, Jul 23, 3:39 PM EDT, 0 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON SC
339 PM EDT THU JUL 23 2015

SCZ047-232015-
INLAND JASPER SC-INLAND JASPER SC-
339 PM EDT THU JUL 23 2015

...STRONG THUNDERSTORMS WILL IMPACT PORTIONS OF JASPER COUNTY UNTIL
415 PM EDT...

AT 339 PM EDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM OVER
GILLISONVILLE...OR 8 MILES NORTH OF RIDGELAND...MOVING SOUTHEAST AT
25 MPH.

WIND GUSTS UP TO 50 MPH WILL BE POSSIBLE WITH THIS STORM.

LOCATIONS IMPACTED INCLUDE...
RIDGELAND...GILLISONVILLE AND COOSAWHATCHIE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

REPORT DAMAGE DIRECTLY TO THE CHARLESTON NATIONAL WEATHER SERVICE AT
1-888-383-2024 WHEN IT IS SAFE TO DO SO.

&&

LAT...LON 3264 8096 3264 8093 3262 8092 3262 8091
      3255 8083 3253 8085 3252 8083 3248 8100
      3260 8106 3265 8096
TIME...MOT...LOC 1939Z 330DEG 21KT 3260 8097

JRL

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 23, 3:55 PM EDTSpecial Marine WarningCHS2 hr
Jul 23, 4:24 PM EDTSpecial Marine WarningCHS96 min
Jul 23, 4:27 PM EDTSpecial Weather StatementCHSBeaufort33 min
Jul 23, 4:38 PM EDTSevere Thunderstorm WarningCHSBeaufort40 min
Jul 23, 4:41 PM EDTSevere Thunderstorm WarningCHSColleton43 min
Jul 23, 5:22 PM EDTSpecial Weather StatementCHSDorchester23 min
Jul 23, 5:28 PM EDTSpecial Weather StatementCHSHampton32 min
Jul 23, 5:35 PM EDTSpecial Marine WarningCHS85 min
Jul 23, 5:43 PM EDTSpecial Marine WarningCHS2 hr
Jul 23, 5:44 PM EDTSpecial Weather StatementCHSCharleston31 min
Jul 23, 5:47 PM EDTSevere Thunderstorm WarningCHSBerkeley, Charleston58 min
Jul 23, 6:42 PM EDTSpecial Marine WarningCHS2 hr
Jul 23, 6:51 PM EDTSevere Thunderstorm WarningCHSBeaufort, Jasper54 min
Jul 23, 7:17 PM EDTSpecial Marine WarningCHS118 min
Jul 23, 5:33 PM EDTSpecial Weather StatementCHSChatham27 min
Jul 23, 6:13 PM EDTSpecial Weather StatementCHSBryan, Chatham47 min

Nearby

Special Weather Statements in South Carolina, 2015Every 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.