Alert archive / South Carolina / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 102, NWS Wilmington, NC

July 15, 2016Horry County, South Carolina

NWS Wilmington, NC issued this severe thunderstorm warning at Jul 15, 2016, 3:10 PM EDT for Horry County, South Carolina. It was in force for 23 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 15, 2016, 3:10 PM EDT (19:10 UTC)
Expired: Jul 15, 2016, 3:33 PM EDT
In force: 23 min
Issued by: NWS Wilmington, NC
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

County Horry County, SC

The radar

The Wilmington radar (KLTX), 51 km from the middle of the area, began a volume at 19:13 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, 7.2 hours before the alert went out and 147 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: 1664 J/kg
Mixed-layer CIN: -58 J/kg
Mixed-layer LCL: 1017 m above ground
0-6 km bulk shear: 15 kt
0-1 km storm-relative helicity: 86 m²/s²
0-3 km storm-relative helicity: 102 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 Wilmington, NC wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 15, 1:26 PM EDT, 1 hour 44 minutes earlier.

Area forecast discussion, Jul 15, 1:26 PM EDT, 1 hour 44 minutes before

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Hazardous weather outlook, Jul 15, 3:19 AM EDT, 11 hours 51 minutes before

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In the hours before

Special weather statement, Jul 15, 2:11 PM EDT, 59 minutes before

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Special weather statement, Jul 15, 2:14 PM EDT, 56 minutes before

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Special weather statement, Jul 15, 2:22 PM EDT, 48 minutes before

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Special weather statement, Jul 15, 2:40 PM EDT, 30 minutes before

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Special weather statement, Jul 15, 2:53 PM EDT, 17 minutes before

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Special weather statement, Jul 15, 3:05 PM EDT, 5 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WILMINGTON NC
305 PM EDT FRI JUL 15 2016

SCZ032-151945-
FLORENCE SC-
305 PM EDT FRI JUL 15 2016

...SPECIAL WEATHER STATEMENT FOR FLORENCE COUNTY UNTIL 345 PM EDT...

AT 305 PM EDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM NEAR
SARDIS...OR 10 MILES NORTHWEST OF LAKE CITY...MOVING NORTHEAST AT 40
MPH.

HALF INCH HAIL AND WIND GUSTS OF UP 50 MPH WILL BE POSSIBLE WITH THIS
STORM.

LOCATIONS IMPACTED INCLUDE...
FLORENCE...LAKE CITY...TIMMONSVILLE...PAMPLICO...QUINBY...SARDIS...
NEW HOPE...EVERGREEN...FRIENDFIELD...MARS BLUFF...CLAUSSEN...
EFFINGHAM...CARTERSVILLE...HYMAN...SCRANTON...COWARD...OLANTA...
CENTRAL CROSSROADS...
HEALTH SOUTH REHABILITATION HOSPITAL AND MCLEOD REGIONAL MEDICAL
CENTER.

THIS INCLUDES THE FOLLOWING HIGHWAYS...
 INTERSTATE 20 NEAR MILE MARKER 141.
 INTERSTATE 95 IN SOUTH CAROLINA BETWEEN MILE MARKERS 148 AND 166...
AND BETWEEN MILE MARKERS 169 AND 175.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THUNDERSTORMS CAN POSE A VARIETY OF THREATS INCLUDING GUSTY WINDS...
SMALL HAIL...CLOUD TO GROUND LIGHTNING...AND LOCALIZED FLOODING. IT
IS RECOMMENDED THAT YOU REMAIN INDOORS UNTIL THE STORMS PASS.

&&

LAT...LON 3425 7978 3425 7976 3429 7971 3429 7968
      3431 7967 3430 7962 3423 7955 3418 7957
      3413 7952 3408 7954 3404 7951 3400 7952
      3396 7948 3387 7982 3389 7985 3388 7994
      3395 7997 3399 7989 3408 8003 3408 8006
TIME...MOT...LOC 1905Z 232DEG 35KT 3396 7991

MBB

The office that day

Everything else NWS Wilmington, NC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 15, 2:14 PM EDT	Special Weather Statement	ILM	Columbus	46 min
Jul 15, 3:39 PM EDT	Special Weather Statement	ILM	Columbus	51 min
Jul 15, 4:38 PM EDT	Special Weather Statement	ILM	Bladen	37 min
Jul 15, 4:48 PM EDT	Severe Thunderstorm Warning	ILM	Bladen	19 min
Jul 15, 2:11 PM EDT	Special Weather Statement	ILM	Marlboro	34 min
Jul 15, 2:22 PM EDT	Special Weather Statement	ILM	Georgetown	23 min
Jul 15, 2:27 PM EDT	Severe Thunderstorm Warning	ILM	Marlboro	63 min
Jul 15, 2:40 PM EDT	Special Weather Statement	ILM	Darlington	35 min
Jul 15, 2:53 PM EDT	Special Weather Statement	ILM	Horry	67 min
Jul 15, 2:56 PM EDT	Severe Thunderstorm Warning	ILM	Darlington, Marlboro	34 min
Jul 15, 3:05 PM EDT	Special Weather Statement	ILM	Florence	40 min
Jul 15, 3:36 PM EDT	Areal Flood Advisory	ILM	Georgetown, Williamsburg	114 min

Nearby

Severe Thunderstorm Warnings in South Carolina, 2016 Every severe thunderstorm warning in 2016

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.