Alert archive / North Carolina / Severe Thunderstorm Watches in 2014

Severe Thunderstorm Watch 178

May 23, 201433 counties in North Carolina; 24 counties in South Carolina

The Storm Prediction Center issued this severe thunderstorm watch at May 23, 2014, 1:07 PM EDT for 33 counties in North Carolina; 24 counties in South Carolina. It was in force for 10 hr.

The area

The outline as issued.

The facts

Issued
May 23, 2014, 1:07 PM EDT (17:07 UTC)
Expired
May 23, 2014, 11:19 PM EDT
In force
10 hr
Issued by
the Storm Prediction Center
Largest hail expected
2.5 in
Strongest gust expected
60 kt
All 57 counties

Beaufort County, NC, Bladen County, NC, Brunswick County, NC, Carteret County, NC, Columbus County, NC, Craven County, NC, Cumberland County, NC, Dare County, NC, Duplin County, NC, Edgecombe County, NC, Franklin County, NC, Greene County, NC, Harnett County, NC, Hoke County, NC, Hyde County, NC, Johnston County, NC, Jones County, NC, Lenoir County, NC, Martin County, NC, Nash County, NC, New Hanover County, NC, Onslow County, NC, Pamlico County, NC, Pender County, NC, Pitt County, NC, Robeson County, NC, Sampson County, NC, Scotland County, NC, Tyrrell County, NC, Wake County, NC, Washington County, NC, Wayne County, NC, Wilson County, NC, Berkeley County, SC, Calhoun County, SC, Charleston County, SC, Chesterfield County, SC, Clarendon County, SC, Darlington County, SC, Dillon County, SC, Dorchester County, SC, Fairfield County, SC, Florence County, SC, Georgetown County, SC, Horry County, SC, Kershaw County, SC, Lancaster County, SC, Lee County, SC, Lexington County, SC, Marion County, SC, Marlboro County, SC, Newberry County, SC, Orangeburg County, SC, Richland County, SC, Saluda County, SC, Sumter County, SC, Williamsburg County, SC

The radar

The Wilmington radar (KLTX), 83 km from the middle of the area, began a volume at 17:08 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.

What SPC expected

The probabilities SPC published with the watch, for the watch area over its life.

Two or more tornadoes
20%
One or more EF2 to EF5 tornadoes
2%
Ten or more severe wind reports
40%
One or more gusts of 65 knots or more
10%
Ten or more severe hail reports
70%
One or more hailstones of 2 inches or more
30%
Six or more combined severe hail and wind reports
95%

Warnings issued inside it

23 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.

IssuedProductOfficeCountiesLasted
May 23, 4:15 PM EDTSevere Thunderstorm WarningILMFlorence, Horry, Marion60 min
May 23, 4:58 PM EDTSevere Thunderstorm WarningILMHorry62 min
May 23, 5:08 PM EDTSevere Thunderstorm WarningMHXOnslow37 min
May 23, 5:24 PM EDTSevere Thunderstorm WarningILMBrunswick, Columbus51 min
May 23, 6:07 PM EDTSevere Thunderstorm WarningCAELancaster38 min
May 23, 6:18 PM EDTSevere Thunderstorm WarningILMHorry57 min
May 23, 6:43 PM EDTSevere Thunderstorm WarningCAEChesterfield, Kershaw, Lancaster47 min
May 23, 6:55 PM EDTSevere Thunderstorm WarningCAEFairfield50 min
May 23, 6:59 PM EDTSevere Thunderstorm WarningCAEFairfield, Richland46 min
May 23, 7:05 PM EDTSevere Thunderstorm WarningCAEChesterfield, Lancaster40 min
May 23, 7:35 PM EDTSevere Thunderstorm WarningCAEKershaw, Lee, Richland, Sumter40 min
May 23, 7:41 PM EDTSevere Thunderstorm WarningCAEFairfield, Lexington, Newberry, Richland49 min
May 23, 7:54 PM EDTSevere Thunderstorm WarningCAEKershaw, Lee36 min
May 23, 8:13 PM EDTSevere Thunderstorm WarningCAECalhoun, Clarendon, Kershaw, Lee, Richland, Sumter47 min
May 23, 8:51 PM EDTSevere Thunderstorm WarningCAEClarendon, Sumter54 min
May 23, 8:56 PM EDTSevere Thunderstorm WarningCAECalhoun, Clarendon, Orangeburg, Richland, Sumter64 min
May 23, 8:58 PM EDTSevere Thunderstorm WarningILMHorry47 min
May 23, 9:00 PM EDTSevere Thunderstorm WarningILMWilliamsburg90 min
May 23, 9:33 PM EDTSevere Thunderstorm WarningCHSBerkeley57 min
May 23, 9:44 PM EDTSevere Thunderstorm WarningILMGeorgetown61 min
May 23, 10:13 PM EDTSevere Thunderstorm WarningCHSBerkeley, Charleston62 min
May 23, 10:20 PM EDTSevere Thunderstorm WarningCAECalhoun, Richland, Sumter40 min
May 23, 10:23 PM EDTSevere Thunderstorm WarningCHSCharleston67 min

Discussions around it

SPC mesoscale discussions over the same counties from four hours before the watch to its end.

The nearest sounding before it

Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 5.1 hours before the alert went out and 203 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, Greensboro/Hi Pt, NC at 12:00Z on 2014-05-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 106 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, Greensboro/Hi Pt, NC at 12:00Z on 2014-05-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 28 square meters per square second.19395878Sfc1 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
106 J/kg
Mixed-layer CIN
-255 J/kg
Mixed-layer LCL
1427 m above ground
0-6 km bulk shear
45 kt
0-1 km storm-relative helicity
28 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

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 23, 11:46 AM EDTMesoscale DiscussionSPCAnson, Bladen, Brunswick, Columbus, Craven, Cumberland and 17 more2 hr
May 23, 2:27 PM EDTMesoscale DiscussionSPCBeaufort, Bladen, Brunswick, Carteret, Clay, Columbus and 21 more93 min
May 23, 2:56 PM EDTSevere Thunderstorm WatchSPCCleveland, Henderson, Jackson, Macon, Polk, Rutherford and 1 more6 hr
May 23, 4:14 PM EDTMesoscale DiscussionSPCAnson, Bladen, Brunswick, Columbus, Cumberland, Duplin and 10 more91 min
May 23, 7:08 PM EDTMesoscale DiscussionSPCBladen, Brunswick, Cleveland, Columbus, Henderson, New Hanover and 5 more97 min

Nearby

Severe Thunderstorm Watches in North Carolina, 2014Severe Thunderstorm Watches in South Carolina, 2014Every severe thunderstorm watch 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.