Alert archive / South Carolina / Severe Thunderstorm Warnings in 2014

Severe Thunderstorm Warning 19, NWS Wilmington, NC

May 23, 2014Horry County, South Carolina

NWS Wilmington, NC issued this severe thunderstorm warning at May 23, 2014, 8:58 PM EDT for Horry County, South Carolina. It was in force for 47 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: May 23, 2014, 8:58 PM EDT (00:58 UTC)
Expired: May 23, 2014, 9:45 PM EDT
In force: 47 min
Issued by: NWS Wilmington, NC
Area: Storm-based polygon

County Horry County, SC

The radar

The Wilmington radar (KLTX), 51 km from the middle of the area, began a volume at 00:59 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
May 23, 1:07 PM EDT	Severe Thunderstorm Watch	SPC	10 hr

The nearest sounding before it

Charleston AFB, SC (KCHS), launched 00:00Z, 1.0 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: 2414 J/kg
Mixed-layer CIN: -52 J/kg
Mixed-layer LCL: 1594 m above ground
0-6 km bulk shear: 36 kt
0-1 km storm-relative helicity: 41 m²/s²
0-3 km storm-relative helicity: 141 m²/s²
Significant tornado parameter: 0.5
Supercell composite: 6.6

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 May 23, 7:54 PM EDT, 1 hour 4 minutes earlier.

Area forecast discussion, May 23, 7:54 PM EDT, 1 hour 4 minutes before

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Hazardous weather outlook, May 23, 1:11 PM EDT, 7 hours 47 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE WILMINGTON NC
111 PM EDT FRI MAY 23 2014

AMZ250-252-254-256-241715-
SURF CITY TO CAPE FEAR NC OUT 20 NM-
CAPE FEAR NC TO LITTLE RIVER INLET SC OUT 20 NM-
LITTLE RIVER INLET TO MURRELLS INLET SC OUT 20 NM-
MURRELLS INLET TO SOUTH SANTEE RIVER SC OUT 20 NM-
111 PM EDT FRI MAY 23 2014

...SEVERE THUNDERSTORM WATCH 178 IN EFFECT UNTIL 9 PM EDT THIS
EVENING...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE ADJACENT COASTAL WATERS.

.DAY ONE...THIS AFTERNOON AND TONIGHT.

PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE
INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS.

   SEVERE THUNDERSTORM WATCH.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

NCZ087-096-099-105>110-SCZ017-023-024-032-033-039-053>056-241715-
ROBESON-BLADEN-COLUMBUS-INLAND PENDER-COASTAL PENDER-
INLAND NEW HANOVER-COASTAL NEW HANOVER-INLAND BRUNSWICK-
COASTAL BRUNSWICK-MARLBORO-DARLINGTON-DILLON-FLORENCE-MARION-
WILLIAMSBURG-INLAND HORRY-COASTAL HORRY-INLAND GEORGETOWN-
COASTAL GEORGETOWN-
111 PM EDT FRI MAY 23 2014

...SEVERE THUNDERSTORM WATCH 178 IN EFFECT UNTIL 9 PM EDT THIS
EVENING...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHEAST NORTH CAROLINA AND
NORTHEAST SOUTH CAROLINA.

.DAY ONE...THIS AFTERNOON AND TONIGHT.

PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE
INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS.

   SEVERE THUNDERSTORM WATCH.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

RJD

In the hours before

Local storm report, May 23, 6:48 PM EDT, 2 hours 10 minutes before

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Local storm report, May 23, 7:01 PM EDT, 1 hour 57 minutes before

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Local storm report, May 23, 7:02 PM EDT, 1 hour 56 minutes before

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Local storm report, May 23, 7:03 PM EDT, 1 hour 55 minutes before

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Local storm report, May 23, 7:18 PM EDT, 1 hour 40 minutes before

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Local storm report, May 23, 7:44 PM EDT, 1 hour 14 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
May 23, 8:00 PM EDT	Special Marine Warning	ILM		60 min
May 23, 9:10 PM EDT	Special Marine Warning	ILM		65 min
May 23, 9:53 PM EDT	Special Marine Warning	ILM		97 min
May 23, 10:52 PM EDT	Special Marine Warning	ILM		68 min
May 24, 12:11 AM EDT	Special Marine Warning	ILM		49 min
May 23, 8:52 PM EDT	Special Weather Statement	ILM	Horry	23 min
May 23, 9:00 PM EDT	Severe Thunderstorm Warning	ILM	Williamsburg	90 min
May 23, 9:44 PM EDT	Severe Thunderstorm Warning	ILM	Georgetown	61 min

Nearby

Severe Thunderstorm Warnings in South Carolina, 2014 Every severe thunderstorm warning in 2014

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.