Alert archive / South Carolina / Severe Thunderstorm Warnings in 2015

Severe Thunderstorm Warning 132, NWS Charleston, SC

July 19, 2015Berkeley County, Charleston County, Colleton County, South Carolina

NWS Charleston, SC issued this severe thunderstorm warning at Jul 19, 2015, 4:31 PM EDT for Berkeley County, Charleston County, Colleton County, South Carolina. It was in force for 44 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 19, 2015, 4:31 PM EDT (20:31 UTC)
Expired: Jul 19, 2015, 5:15 PM EDT
In force: 44 min
Issued by: NWS Charleston, SC
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Berkeley County, SC, Charleston County, SC, Colleton County, SC

The radar

The Charleston,SC radar (KCLX), 86 km from the middle of the area, began a volume at 20:31 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, 8.5 hours before the alert went out and 17 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: 199 J/kg
Mixed-layer CIN: -141 J/kg
Mixed-layer LCL: 1320 m above ground
0-6 km bulk shear: 13 kt
0-1 km storm-relative helicity: 23 m²/s²
0-3 km storm-relative helicity: 32 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

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 19, 4:18 PM EDT, 13 minutes earlier.

Area forecast discussion, Jul 19, 4:18 PM EDT, 13 minutes before

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Hazardous weather outlook, Jul 19, 3:20 PM EDT, 1 hour 11 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CHARLESTON SC
320 PM EDT SUN JUL 19 2015

GAZ087-088-099>101-114>119-137>141-SCZ040-042>045-047>052-201930-
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-
320 PM EDT SUN JUL 19 2015

...ISOLATED SEVERE THUNDERSTORMS POSSIBLE THROUGH EARLY THIS
EVENING...

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

.DAY ONE...THIS AFTERNOON AND TONIGHT.

SEVERE THUNDERSTORMS...SCATTERED THUNDERSTORMS WILL CONTINUE TO
DEVELOP ACROSS SOUTHEAST GEORGIA AND SOUTHERN SOUTH CAROLINA
THROUGH LATE AFTERNOON. A FEW OF THE STORMS MAY BECOME SEVERE...
PRODUCING DAMAGING STRAIGHT LINE WINDS AND PERHAPS LARGE HAIL.
THUNDERSTORMS SHOULD DIMINISH IN COVERAGE AND INTENSITY THIS
EVENING.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY.

EXCESSIVE HEAT...TEMPERATURES WILL RISE INTO THE MID TO UPPER 90S
FOR MOST PLACES EACH AFTERNOON FROM MONDAY THROUGH AT LEAST
WEDNESDAY. THESE HOT TEMPERATURES WILL COMBINE WITH DEWPOINTS IN
THE LOWER TO MID 70S...AND COULD RESULT IN HEAT INDEX VALUES
AROUND 110 DEGREES. HEAT ADVISORIES COULD EVENTUALLY BE NEEDED FOR
PORTIONS OF THE AREA.

.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.

AMZ330-350-352-354-374-201930-
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-
320 PM EDT SUN JUL 19 2015

THIS HAZARDOUS WEATHER OUTLOOK IS FOR ATLANTIC COASTAL WATERS.

.DAY ONE...THIS AFTERNOON AND TONIGHT.

THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY.

THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW.

.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

Special weather statement, Jul 19, 2:47 PM EDT, 1 hour 44 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON SC
247 PM EDT SUN JUL 19 2015

GAZ101-SCZ047-051-191915-
EFFINGHAM GA-INLAND JASPER SC-COASTAL JASPER SC-INLAND JASPER SC-
COASTAL JASPER SC-
247 PM EDT SUN JUL 19 2015

...STRONG THUNDERSTORMS WILL IMPACT PORTIONS OF EFFINGHAM AND JASPER
COUNTIES UNTIL 315 PM EDT...

AT 247 PM EDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM OVER
SWITZERLAND...OR NEAR RIDGELAND...MOVING SOUTH AT 10 MPH.

DIME SIZE HAIL AND WIND GUSTS UP TO 50 MPH WILL BE POSSIBLE WITH THIS
STORM.

LOCATIONS IMPACTED INCLUDE...
RIDGELAND...JASPER...RINCON...HARDEEVILLE...GRAHAMVILLE...OLD
HOUSE...PURYSBURGH AND SWITZERLAND.

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 3235 8128 3257 8090 3248 8082 3242 8085
      3230 8097 3230 8100 3228 8100 3219 8109
TIME...MOT...LOC 1847Z 344DEG 11KT 3240 8100

RFM

Special weather statement, Jul 19, 3:05 PM EDT, 1 hour 26 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON SC
305 PM EDT SUN JUL 19 2015

SCZ042-043-191930-
HAMPTON SC-INLAND COLLETON SC-
305 PM EDT SUN JUL 19 2015

...STRONG THUNDERSTORMS WILL IMPACT PORTIONS OF COLLETON AND HAMPTON
COUNTIES UNTIL 330 PM EDT...

AT 305 PM EDT...DOPPLER RADAR WAS TRACKING A LINE OF STRONG
THUNDERSTORMS ALONG A LINE EXTENDING FROM NEAR CROCKETVILLE TO NEAR
WALTERBORO...AND MOVING SOUTHEAST AT 25 MPH.

WIND GUSTS UP TO 50 MPH WILL BE POSSIBLE WITH THESE STORMS.

LOCATIONS IMPACTED INCLUDE...
WALTERBORO...HAMPTON...YEMASSEE...VARNVILLE...EARLY BRANCH...
ISLANDTON...ALMEDA INTERSECTION AND RITTER.

THESE STORMS MAY INTENSIFY...SO BE CERTAIN TO MONITOR LOCAL RADIO AND
TV STATIONS...AS WELL AS LOCAL CABLE TV OUTLETS...FOR ADDITIONAL
INFORMATION AND POSSIBLE WARNINGS FROM THE NATIONAL WEATHER SERVICE.

LAT...LON 3278 8044 3268 8079 3270 8083 3267 8087
      3264 8096 3265 8096 3266 8095 3269 8095
      3270 8097 3272 8098 3275 8102 3274 8103
      3289 8114 3302 8067
TIME...MOT...LOC 1905Z 322DEG 24KT 3288 8103 3297 8072

Special weather statement, Jul 19, 3:19 PM EDT, 1 hour 12 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON SC
319 PM EDT SUN JUL 19 2015

SCZ040-042-043-192000-
HAMPTON SC-ALLENDALE SC-INLAND COLLETON SC-
319 PM EDT SUN JUL 19 2015

...STRONG THUNDERSTORMS WILL IMPACT PORTIONS OF COLLETON...HAMPTON
AND ALLENDALE COUNTIES UNTIL 400 PM EDT...

AT 318 PM EDT...DOPPLER RADAR WAS TRACKING A LINE OF STRONG
THUNDERSTORMS ALONG A LINE EXTENDING FROM NEAR ULMER TO NEAR
APPLETON...AND MOVING SOUTH AT 20 MPH.

WIND GUSTS UP TO 50 MPH WILL BE POSSIBLE WITH THESE STORMS.

LOCATIONS IMPACTED INCLUDE...
ALLENDALE...HAMPTON...COLLETON...FAIRFAX...BRUNSON...GIFFORD...
SYCAMORE AND LODGE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FREQUENT CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THESE STORMS.
LIGHTNING CAN STRIKE 15 MILES AWAY FROM A THUNDERSTORM. SEEK A SAFE
SHELTER INSIDE A BUILDING OR VEHICLE.

THESE STORMS MAY INTENSIFY...SO BE CERTAIN TO MONITOR LOCAL RADIO AND
TV STATIONS...AS WELL AS LOCAL CABLE TV OUTLETS...FOR ADDITIONAL
INFORMATION AND POSSIBLE WARNINGS FROM THE NATIONAL WEATHER SERVICE.

&&

LAT...LON 3311 8137 3312 8120 3305 8113 3305 8110
      3303 8108 3310 8094 3298 8081 3279 8141
      3310 8151 3313 8142
TIME...MOT...LOC 1918Z 340DEG 17KT 3315 8116 3307 8141

Special weather statement, Jul 19, 3:36 PM EDT, 55 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON SC
336 PM EDT SUN JUL 19 2015

GAZ116-118-138-192000-
INLAND LIBERTY GA-INLAND CHATHAM GA-INLAND BRYAN GA-
336 PM EDT SUN JUL 19 2015

...STRONG THUNDERSTORMS WILL IMPACT PORTIONS OF BRYAN...CHATHAM AND
LIBERTY COUNTIES UNTIL 400 PM EDT...

AT 336 PM EDT...DOPPLER RADAR WAS TRACKING A LINE OF STRONG
THUNDERSTORMS ALONG A LINE EXTENDING FROM NEAR LANIER TO NEAR WHITE
BLUFF...AND MOVING SOUTHEAST AT 25 MPH.

DIME SIZE HAIL AND WIND GUSTS UP TO 50 MPH WILL BE POSSIBLE WITH
THESE STORMS.

LOCATIONS IMPACTED INCLUDE...
SAVANNAH...POOLER...RICHMOND HILL...PEMBROKE...I-16/I-95
INTERCHANGE...LANIER...GARDEN CITY AND BLOOMINGDALE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FREQUENT CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THESE STORMS.
LIGHTNING CAN STRIKE 15 MILES AWAY FROM A THUNDERSTORM. SEEK A SAFE
SHELTER INSIDE A BUILDING OR VEHICLE.

THESE STORMS MAY INTENSIFY...SO BE CERTAIN TO MONITOR LOCAL RADIO AND
TV STATIONS...AS WELL AS LOCAL CABLE TV OUTLETS...FOR ADDITIONAL
INFORMATION AND POSSIBLE WARNINGS FROM THE NATIONAL WEATHER SERVICE.

&&

LAT...LON 3222 8145 3220 8142 3216 8141 3215 8140
      3211 8140 3210 8138 3215 8131 3205 8111
      3202 8113 3181 8147 3216 8167
TIME...MOT...LOC 1936Z 304DEG 20KT 3208 8156 3200 8117

Special weather statement, Jul 19, 3:43 PM EDT, 48 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON SC
343 PM EDT SUN JUL 19 2015

SCZ043>045-192030-
INLAND BERKELEY SC-INLAND COLLETON SC-DORCHESTER SC-
343 PM EDT SUN JUL 19 2015

...STRONG THUNDERSTORMS WILL IMPACT PORTIONS OF COLLETON...DORCHESTER
AND BERKELEY COUNTIES UNTIL 430 PM EDT...
...MARINERS ON LAKE MOULTRIE SHOULD SEEK SAFE HARBOR...

AT 343 PM EDT...DOPPLER RADAR WAS TRACKING A LINE OF STRONG
THUNDERSTORMS ALONG A LINE EXTENDING FROM SAINT GEORGE TO 6 MILES
WEST OF CROSS...AND MOVING SOUTHEAST AT 30 MPH.

DIME SIZE HAIL AND WIND GUSTS UP TO 50 MPH WILL BE POSSIBLE WITH
THESE STORMS.

LOCATIONS IMPACTED INCLUDE...
SUMMERVILLE...GOOSE CREEK...MONCKS CORNER...SAINT GEORGE...SLANDS
BRIDGE...INDIAN FIELD...GIVHANS FERRY STATE PARK AND LADSON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

BOATERS ON LAKE MOULTRIE SHOULD SEEK SAFE HARBOR IMMEDIATELY. IF
CAUGHT ON THE OPEN WATER...STAY AS LOW AS POSSIBLE AND WEAR A
PERSONAL FLOTATION DEVICE. REMEMBER...IF YOU CAN HEAR THUNDER YOU ARE
AT RISK FOR BEING STRUCK BY LIGHTNING.

THESE STORMS MAY INTENSIFY...SO BE CERTAIN TO MONITOR LOCAL RADIO AND
TV STATIONS...AS WELL AS LOCAL CABLE TV OUTLETS...FOR ADDITIONAL
INFORMATION AND POSSIBLE WARNINGS FROM THE NATIONAL WEATHER SERVICE.

&&

LAT...LON 3324 7964 3307 7997 3299 8007 3302 8017
      3301 8018 3299 8012 3298 8011 3285 8032
      3286 8040 3281 8040 3278 8044 3317 8079
      3330 8050 3326 8043 3326 8036 3328 8035
      3327 8030 3330 8025 3343 8022 3346 8015
TIME...MOT...LOC 1943Z 298DEG 24KT 3319 8057 3336 8025

Local storm report, Jul 19, 4:24 PM EDT, 7 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 18, 8:27 PM EDT	Special Weather Statement	CHS	Clarendon	33 min
Jul 18, 8:38 PM EDT	Severe Thunderstorm Warning	CHS	Berkeley, Colleton, Dorchester	56 min
Jul 18, 8:51 PM EDT	Severe Thunderstorm Warning	CHS	Allendale, Colleton, Dorchester, Hampton	54 min
Jul 18, 9:32 PM EDT	Special Weather Statement	CHS	Allendale	28 min
Jul 18, 9:46 PM EDT	Special Weather Statement	CHS	Hampton	29 min
Jul 19, 2:47 PM EDT	Special Weather Statement	CHS	Jasper	28 min
Jul 19, 2:51 PM EDT	Severe Thunderstorm Warning	CHS	Beaufort, Jasper	54 min
Jul 19, 3:05 PM EDT	Special Weather Statement	CHS	Colleton	25 min
Jul 19, 3:10 PM EDT	Severe Thunderstorm Warning	CHS	Beaufort, Jasper	65 min
Jul 19, 3:13 PM EDT	Special Marine Warning	CHS		2 hr
Jul 19, 3:19 PM EDT	Special Weather Statement	CHS	Allendale	41 min
Jul 19, 3:24 PM EDT	Severe Thunderstorm Warning	CHS	Beaufort, Colleton, Jasper	66 min
Jul 19, 3:32 PM EDT	Severe Thunderstorm Warning	CHS	Berkeley, Charleston, Colleton, Dorchester	58 min
Jul 19, 3:43 PM EDT	Special Weather Statement	CHS	Berkeley, Dorchester	47 min
Jul 19, 3:49 PM EDT	Severe Thunderstorm Warning	CHS	Beaufort, Colleton, Hampton, Jasper	41 min
Jul 19, 4:16 PM EDT	Special Marine Warning	CHS		59 min
Jul 19, 4:19 PM EDT	Special Marine Warning	CHS		116 min
Jul 19, 5:08 PM EDT	Special Weather Statement	CHS	Colleton	52 min
Jul 19, 5:12 PM EDT	Special Marine Warning	CHS		2 hr
Jul 19, 5:14 PM EDT	Special Marine Warning	CHS		2 hr
Jul 19, 5:16 PM EDT	Special Weather Statement	CHS	Charleston	44 min
Jul 19, 7:08 PM EDT	Special Weather Statement	CHS	Hampton	52 min
Jul 19, 1:42 PM EDT	Special Weather Statement	CHS	Bulloch	33 min
Jul 19, 1:50 PM EDT	Special Weather Statement	CHS	Effingham	25 min
Jul 19, 3:07 PM EDT	Severe Thunderstorm Warning	CHS	Bryan, Chatham	53 min
Jul 19, 3:36 PM EDT	Special Weather Statement	CHS	Bryan	24 min
Jul 19, 5:10 PM EDT	Special Weather Statement	CHS	Candler	50 min
Jul 19, 5:30 PM EDT	Special Weather Statement	CHS	Long	60 min
Jul 19, 5:34 PM EDT	Special Weather Statement	CHS	Jenkins, Screven	56 min
Jul 19, 6:30 PM EDT	Special Weather Statement	CHS	Screven	45 min

Nearby

Severe Thunderstorm Warnings in South Carolina, 2015 Every 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.