Alert archive / Georgia / Tornado Watches in 2006

Tornado Watch 860

November 15, 200612 counties in Florida; 26 counties in Georgia; 5 counties in South Carolina

The Storm Prediction Center issued this tornado watch at Nov 15, 2006, 7:08 PM EST for 12 counties in Florida; 26 counties in Georgia; 5 counties in South Carolina. It was in force for 8 hr.

The area

The outline as issued.

The facts

Issued
Nov 15, 2006, 7:08 PM EST (00:08 UTC)
Expired
Nov 16, 2006, 3:00 AM EST
In force
8 hr
Issued by
the Storm Prediction Center
Largest hail expected
1 in
Strongest gust expected
60 kt
All 43 counties

Alachua County, FL, Baker County, FL, Bradford County, FL, Clay County, FL, Columbia County, FL, Duval County, FL, Gilchrist County, FL, Hamilton County, FL, Nassau County, FL, Saint Johns County, FL, Suwannee County, FL, Union County, FL, Appling County, GA, Atkinson County, GA, Bacon County, GA, Brantley County, GA, Bryan County, GA, Bulloch County, GA, Camden County, GA, Candler County, GA, Charlton County, GA, Chatham County, GA, Clinch County, GA, Coffee County, GA, Echols County, GA, Effingham County, GA, Evans County, GA, Glynn County, GA, Jeff Davis County, GA, Jenkins County, GA, Liberty County, GA, Long County, GA, McIntosh County, GA, Pierce County, GA, Screven County, GA, Tattnall County, GA, Ware County, GA, Wayne County, GA, Allendale County, SC, Beaufort County, SC, Colleton County, SC, Hampton County, SC, Jasper County, SC

The radar

The Jacksonville radar (KJAX), 131 km from the middle of the area, began a volume at 00:10 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
40%
One or more EF2 to EF5 tornadoes
20%
Ten or more severe wind reports
30%
One or more gusts of 65 knots or more
30%
Ten or more severe hail reports
10%
One or more hailstones of 2 inches or more
5%
Six or more combined severe hail and wind reports
60%

Warnings issued inside it

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

IssuedProductOfficeCountiesLasted
Nov 15, 10:27 PM ESTSevere Thunderstorm WarningCHSBulloch33 min
Nov 15, 10:31 PM ESTTornado WarningCHSJenkins19 min
Nov 15, 11:00 PM ESTSevere Thunderstorm WarningCHSBulloch, Effingham, Screven30 min
Nov 15, 11:27 PM ESTSevere Thunderstorm WarningCHSEffingham48 min
Nov 16, 12:06 AM ESTSevere Thunderstorm WarningCHSColleton54 min
Nov 16, 12:30 AM ESTSevere Thunderstorm WarningCHSBeaufort60 min
Nov 16, 12:54 AM ESTSevere Thunderstorm WarningCHSColleton51 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 00:00Z, 0.1 hours before the alert went out and 225 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 00:00Z on 2006-11-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1039 joules per kilogram.LCLEL10008507005003002001001 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 00:00Z on 2006-11-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -141 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
1039 J/kg
Mixed-layer CIN
-1 J/kg
Mixed-layer LCL
582 m above ground
0-6 km bulk shear
22 kt
0-1 km storm-relative helicity
-141 m²/s²
0-3 km storm-relative helicity
-15 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.3

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Nov 15, 7:03 PM ESTMesoscale DiscussionSPCAlachua, Baker, Bradford, Clay, Columbia, Dixie and 16 more57 min
Nov 15, 9:32 PM ESTMesoscale DiscussionSPCAlachua, Brevard, Charlotte, Citrus, DeSoto, Flagler and 21 more58 min
Nov 15, 11:41 PM ESTTornado WatchSPCBrevard, Charlotte, DeSoto, Flagler, Hardee, Hernando and 18 more3 hr
Nov 16, 12:32 AM ESTMesoscale DiscussionSPCBaker, Bradford, Clay, Columbia, Duval, Nassau and 2 more58 min
Nov 16, 2:35 AM ESTMesoscale DiscussionSPCBrevard, Charlotte, Citrus, DeSoto, Flagler, Hardee and 19 more55 min
Nov 16, 3:03 AM ESTTornado WatchSPCBrevard, Charlotte, DeSoto, Hardee, Hernando, Highlands and 15 more8 hr
Nov 16, 8:12 AM ESTMesoscale DiscussionSPCBrevard, Charlotte, DeSoto, Hardee, Highlands, Indian River and 9 more2 hr
Nov 15, 9:14 PM ESTMesoscale DiscussionSPCBurke61 min
Nov 15, 9:29 PM ESTTornado WatchSPCAiken, Bamberg, Barnwell, Berkeley, Calhoun, Charleston and 14 more5 hr
Nov 15, 11:58 PM ESTTornado WatchSPCDarlington, Dillon, Florence, Georgetown, Horry, Marion and 2 more8 hr
Nov 16, 3:17 AM ESTMesoscale DiscussionSPCGeorgetown, Horry118 min
Nov 16, 7:17 AM ESTMesoscale DiscussionSPCBeaufort, Berkeley, Calhoun, Charleston, Chesterfield, Clarendon and 15 more118 min
Nov 16, 7:51 AM ESTTornado WatchSPCBerkeley, Charleston, Darlington, Dillon, Dorchester, Florence and 5 more6 hr

Nearby

Tornado Watches in Georgia, 2006Tornado Watches in Florida, 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.