Alert archive / Georgia / Tornado Watches in 2006

Tornado Watch 475

June 13, 200612 counties in Georgia; 8 counties in South Carolina

The Storm Prediction Center issued this tornado watch at Jun 13, 2006, 2:25 PM EDT for 12 counties in Georgia; 8 counties in South Carolina. It was in force for 7 hr.

The area

The outline as issued.

The facts

Issued
Jun 13, 2006, 2:25 PM EDT (18:25 UTC)
Expired
Jun 13, 2006, 9:37 PM EDT
In force
7 hr
Issued by
the Storm Prediction Center
Largest hail expected
0.5 in
Strongest gust expected
50 kt

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, Allendale County, SC, Beaufort County, SC, Berkeley County, SC, Charleston County, SC, Colleton County, SC, Dorchester County, SC, Hampton County, SC, Jasper County, SC

The radar

The Charleston,SC radar (KCLX), 36 km from the middle of the area, began a volume at 18:25 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
30%
One or more EF2 to EF5 tornadoes
10%
Ten or more severe wind reports
10%
One or more gusts of 65 knots or more
30%
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
20%

Warnings issued inside it

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

IssuedProductOfficeCountiesLasted
Jun 13, 3:14 PM EDTTornado WarningCHSTattnall46 min
Jun 13, 4:33 PM EDTTornado WarningCHSEffingham42 min
Jun 13, 5:29 PM EDTTornado WarningCHSScreven46 min
Jun 13, 5:52 PM EDTTornado WarningCHSBulloch38 min
Jun 13, 6:32 PM EDTTornado WarningCHSCharleston43 min
Jun 13, 6:44 PM EDTTornado WarningCHSJasper46 min
Jun 13, 6:56 PM EDTTornado WarningCHSAllendale34 min
Jun 13, 7:34 PM EDTTornado WarningCHSCharleston26 min
Jun 13, 7:59 PM EDTTornado WarningCHSBerkeley, Charleston61 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, 6.4 hours before the alert went out and 105 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 2006-06-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 288 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 2006-06-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -11 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
288 J/kg
Mixed-layer CIN
-63 J/kg
Mixed-layer LCL
989 m above ground
0-6 km bulk shear
3 kt
0-1 km storm-relative helicity
-11 m²/s²
0-3 km storm-relative helicity
-28 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
Jun 13, 3:19 AM EDTMesoscale DiscussionSPCAtkinson, Brantley, Brooks, Camden, Charlton, Clinch and 10 more86 min
Jun 13, 3:42 AM EDTTornado WatchSPCBrantley, Camden, Charlton, Clinch, Echols, Glynn and 4 more10 hr
Jun 13, 7:21 AM EDTMesoscale DiscussionSPCBrantley, Camden, Charlton, Clinch, Echols, Glynn and 2 more24 min
Jun 13, 2:01 PM EDTMesoscale DiscussionSPCBryan, Chatham, Effingham, Liberty, Long, McIntosh89 min
Jun 13, 7:44 PM EDTMesoscale DiscussionSPCEffingham, Screven2 hr

Nearby

Tornado Watches in Georgia, 2006Tornado Watches in South Carolina, 2006Every tornado watch in 2006

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.