Alert archive / South Carolina / Severe Thunderstorm Watches in 2016

Severe Thunderstorm Watch 339

July 6, 201612 counties in Georgia; 6 counties in North Carolina; 16 counties in South Carolina

The Storm Prediction Center issued this severe thunderstorm watch at Jul 6, 2016, 4:03 PM EDT for 12 counties in Georgia; 6 counties in North Carolina; 16 counties in South Carolina. It was in force for 4 hr.

The area

The outline as issued.

The facts

Issued
Jul 6, 2016, 4:03 PM EDT (20:03 UTC)
Expired
Jul 6, 2016, 7:46 PM EDT
In force
4 hr
Issued by
the Storm Prediction Center
Largest hail expected
0.5 in
Strongest gust expected
60 kt
All 34 counties

Bryan County, GA, Bulloch County, GA, Candler County, GA, Chatham County, GA, Effingham County, GA, Evans County, GA, Jenkins County, GA, Liberty County, GA, Long County, GA, McIntosh County, GA, Screven County, GA, Tattnall County, GA, Bladen County, NC, Brunswick County, NC, Columbus County, NC, New Hanover County, NC, Pender County, NC, Robeson County, NC, Allendale County, SC, Beaufort County, SC, Berkeley County, SC, Charleston County, SC, Colleton County, SC, Darlington County, SC, Dillon County, SC, Dorchester County, SC, Florence County, SC, Georgetown County, SC, Hampton County, SC, Horry County, SC, Jasper County, SC, Marion County, SC, Marlboro County, SC, Williamsburg County, SC

The radar

The Wilmington radar (KLTX), 117 km from the middle of the area, began a volume at 20:05 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
5%
One or more EF2 to EF5 tornadoes
2%
Ten or more severe wind reports
40%
One or more gusts of 65 knots or more
5%
Ten or more severe hail reports
5%
One or more hailstones of 2 inches or more
5%
Six or more combined severe hail and wind reports
70%

Warnings issued inside it

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

IssuedProductOfficeCountiesLasted
Jul 6, 4:26 PM EDTSevere Thunderstorm WarningCHSAllendale, Hampton, Jasper49 min
Jul 6, 4:31 PM EDTSevere Thunderstorm WarningCHSJenkins, Screven59 min
Jul 6, 4:56 PM EDTSevere Thunderstorm WarningCHSBulloch, Candler, Evans, Jenkins, Screven, Tattnall64 min
Jul 6, 5:04 PM EDTSevere Thunderstorm WarningILMFlorence, Williamsburg56 min
Jul 6, 5:12 PM EDTSevere Thunderstorm WarningCHSScreven63 min
Jul 6, 5:20 PM EDTSevere Thunderstorm WarningILMWilliamsburg41 min
Jul 6, 5:21 PM EDTSevere Thunderstorm WarningCHSCharleston, Colleton, Dorchester54 min
Jul 6, 5:36 PM EDTSevere Thunderstorm WarningILMFlorence, Marion39 min
Jul 6, 5:50 PM EDTSevere Thunderstorm WarningILMDarlington, Dillon, Florence, Marion, Marlboro40 min
Jul 6, 5:58 PM EDTSevere Thunderstorm WarningCHSBeaufort, Charleston, Colleton, Jasper62 min
Jul 6, 6:05 PM EDTSevere Thunderstorm WarningCHSBerkeley, Charleston, Dorchester55 min
Jul 6, 6:30 PM EDTSevere Thunderstorm WarningCHSBerkeley, Charleston60 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

Charleston AFB, SC (KCHS), launched 12:00Z, 8.1 hours before the alert went out and 93 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 12:00Z on 2016-07-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 835 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 12:00Z on 2016-07-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -28 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
835 J/kg
Mixed-layer CIN
-109 J/kg
Mixed-layer LCL
1165 m above ground
0-6 km bulk shear
9 kt
0-1 km storm-relative helicity
-28 m²/s²
0-3 km storm-relative helicity
-27 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
Jul 6, 1:14 PM EDTMesoscale DiscussionSPCBaldwin, Bibb, Bleckley, Burke, Butts, Chattahoochee and 49 more61 min
Jul 6, 1:53 PM EDTSevere Thunderstorm WatchSPCBaldwin, Banks, Bibb, Bleckley, Burke, Butts and 61 more4 hr
Jul 6, 3:01 PM EDTMesoscale DiscussionSPCBaldwin, Bibb, Bleckley, Burke, Butts, Candler and 45 more59 min
Jul 6, 3:44 PM EDTMesoscale DiscussionSPCBrantley, Bryan, Chatham, Effingham, Evans, Liberty and 4 more61 min
Jul 6, 7:51 PM EDTMesoscale DiscussionSPCFannin, Rabun, Towns, Union, White54 min
Jul 5, 8:45 PM EDTMesoscale DiscussionSPCBeaufort, Bertie, Carteret, Craven, Duplin, Edgecombe and 11 more2 hr
Jul 6, 5:48 PM EDTMesoscale DiscussionSPCCherokee, Graham, Swain57 min

Nearby

Severe Thunderstorm Watches in South Carolina, 2016Severe Thunderstorm Watches in Georgia, 2016Severe Thunderstorm Watches in North Carolina, 2016Every severe thunderstorm watch 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.