Alert archive / South Carolina / Severe Thunderstorm Warnings in 2015

Severe Thunderstorm Warning 116, NWS Charleston, SC

July 14, 2015Charleston County, South Carolina

NWS Charleston, SC issued this severe thunderstorm warning at Jul 14, 2015, 12:47 AM EDT for Charleston County, South Carolina. It was in force for 32 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
Jul 14, 2015, 12:47 AM EDT (04:47 UTC)
Expired
Jul 14, 2015, 1:19 AM EDT
In force
32 min
Issued by
NWS Charleston, SC
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

County Charleston County, SC

The radar

The Charleston,SC radar (KCLX), 103 km from the middle of the area, began a volume at 04:50 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 00:00Z, 4.8 hours before the alert went out and 18 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 00:00Z on 2015-07-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2606 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 00:00Z on 2015-07-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 85 square meters per square second.193958Sfc1 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
2606 J/kg
Mixed-layer CIN
-29 J/kg
Mixed-layer LCL
1267 m above ground
0-6 km bulk shear
28 kt
0-1 km storm-relative helicity
85 m²/s²
0-3 km storm-relative helicity
124 m²/s²
Significant tornado parameter
0.9
Supercell composite
8.5

Open this sounding in Storm Lab

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 Jul 13, 10:50 PM EDT, 1 hour 57 minutes earlier.

Area forecast discussion, Jul 13, 10:50 PM EDT, 1 hour 57 minutes before
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Hazardous weather outlook, Jul 13, 4:14 AM EDT, 20 hours 33 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CHARLESTON SC
414 AM EDT MON JUL 13 2015

AMZ330-350-352-354-374-GAZ087-088-099>101-114>119-137>141-SCZ040-
042>045-047>052-140815-
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-
414 AM EDT MON JUL 13 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...TUESDAY THROUGH SUNDAY.

SEVERE WEATHER...ISOLATED TO SCATTERED THUNDERSTORMS SHOULD DEVELOP
AHEAD OF AN APPROACHING COLD FRONT TUESDAY AND WEDNESDAY. SOME OF
THESE STORMS COULD BE SEVERE...WITH DAMAGING WINDS AND HAIL BEING
THE PRIMARY CONCERN. THE THREAT OF SEVERE WEATHER SHOULD BE
GREATEST DURING THE LATE AFTERNOON INTO EARLY OVERNIGHT HOURS ON
TUESDAY...AND DURING AFTERNOON AND EVENING HOURS ON WEDNESDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ASSISTANCE IS NOT ANTICIPATED AT THIS TIME.

In the hours before

Local storm report, Jul 13, 9:31 PM EDT, 3 hours 16 minutes before
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Special weather statement, Jul 13, 9:57 PM EDT, 2 hours 50 minutes before
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Local storm report, Jul 13, 10:00 PM EDT, 2 hours 47 minutes before
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Local storm report, Jul 13, 10:56 PM EDT, 1 hour 51 minutes before
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Local storm report, Jul 13, 11:19 PM EDT, 1 hour 28 minutes before
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Special weather statement, Jul 14, 12:34 AM EDT, 13 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Jul 13, 8:58 PM EDTSpecial Weather StatementCHSCharleston32 min
Jul 13, 9:01 PM EDTSevere Thunderstorm WarningCHSBerkeley, Charleston, Dorchester59 min
Jul 13, 9:10 PM EDTSpecial Marine WarningCHS65 min
Jul 14, 12:22 AM EDTSpecial Marine WarningCHS113 min
Jul 14, 12:34 AM EDTSpecial Weather StatementCHSGeorgetown41 min
Jul 14, 1:43 AM EDTSpecial Weather StatementCHSBerkeley62 min
Jul 14, 2:11 AM EDTSpecial Marine WarningCHS2 hr
Jul 14, 2:17 AM EDTSpecial Weather StatementCHSCharleston58 min
Jul 14, 2:58 AM EDTSpecial Weather StatementCHSBerkeley32 min
Jul 14, 3:38 AM EDTSmall Craft AdvisoryCHS41 hr
Jul 14, 4:21 AM EDTSpecial Marine WarningCHS54 min
Jul 14, 1:13 PM EDTSpecial Weather StatementCHSColleton32 min
Jul 14, 2:06 PM EDTSpecial Weather StatementCHSHampton24 min
Jul 14, 2:16 PM EDTSevere Thunderstorm WarningCHSHampton, Jasper21 min
Jul 14, 2:18 PM EDTSpecial Weather StatementCHSBeaufort27 min
Jul 14, 2:21 PM EDTSpecial Marine WarningCHS54 min
Jul 14, 2:24 PM EDTSevere Thunderstorm WarningCHSBeaufort, Charleston, Colleton26 min
Jul 14, 2:42 PM EDTSpecial Marine WarningCHS2 hr
Jul 14, 2:57 PM EDTSpecial Weather StatementCHSBeaufort33 min
Jul 14, 3:22 PM EDTSpecial Weather StatementCHSBeaufort23 min
Jul 14, 3:29 PM EDTSpecial Marine WarningCHS2 hr
Jul 14, 5:12 PM EDTSpecial Marine WarningCHS2 hr
Jul 13, 8:10 PM EDTSpecial Weather StatementCHSCandler35 min
Jul 13, 8:20 PM EDTSevere Thunderstorm WarningCHSBulloch, Candler, Evans, Tattnall55 min
Jul 13, 8:22 PM EDTSpecial Weather StatementCHSLong23 min
Jul 13, 9:17 PM EDTSevere Thunderstorm WarningCHSBryan, Bulloch, Evans, Liberty, Long, Tattnall25 min
Jul 13, 9:57 PM EDTSpecial Weather StatementCHSMcIntosh33 min
Jul 14, 7:56 AM EDTSpecial Weather StatementCHSChatham64 min
Jul 14, 1:05 PM EDTSpecial Weather StatementCHSBulloch25 min
Jul 14, 1:54 PM EDTSpecial Weather StatementCHSEffingham36 min
Jul 14, 2:01 PM EDTSpecial Weather StatementCHSCandler14 min
Jul 14, 2:09 PM EDTSpecial Weather StatementCHSCandler36 min
Jul 14, 3:08 PM EDTSpecial Weather StatementCHSEvans37 min
Jul 14, 3:35 PM EDTSpecial Weather StatementCHSJenkins, Screven25 min
Jul 14, 3:39 PM EDTSevere Thunderstorm WarningCHSBulloch, Jenkins, Screven32 min
Jul 14, 4:56 PM EDTSpecial Weather StatementCHSMcIntosh34 min

Nearby

Severe Thunderstorm Warnings in South Carolina, 2015Every severe thunderstorm warning 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.