Alert archive / Florida / Tornado Watches in 2006

Tornado Watch 882

December 25, 200624 counties in Florida; 9 counties in Georgia

The Storm Prediction Center issued this tornado watch at Dec 25, 2006, 6:16 AM EST for 24 counties in Florida; 9 counties in Georgia. It was in force for 7 hr.

The area

The outline as issued.

The facts

Issued
Dec 25, 2006, 6:16 AM EST (11:16 UTC)
Expired
Dec 25, 2006, 1:00 PM EST
In force
7 hr
Issued by
the Storm Prediction Center
Largest hail expected
0.5 in
Strongest gust expected
60 kt
All 33 counties

Alachua County, FL, Baker County, FL, Bradford County, FL, Citrus County, FL, Clay County, FL, Columbia County, FL, Dixie County, FL, Duval County, FL, Flagler County, FL, Gilchrist County, FL, Hamilton County, FL, Hernando County, FL, Hillsborough County, FL, Lafayette County, FL, Levy County, FL, Marion County, FL, Nassau County, FL, Pasco County, FL, Pinellas County, FL, Putnam County, FL, Saint Johns County, FL, Sumter County, FL, Suwannee County, FL, Union County, FL, Brantley County, GA, Camden County, GA, Charlton County, GA, Clinch County, GA, Echols County, GA, Glynn County, GA, Pierce County, GA, Ware County, GA, Wayne County, GA

The radar

The Jacksonville radar (KJAX), 103 km from the middle of the area, began a volume at 11:18 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
20%
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
70%

Warnings issued inside it

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

IssuedProductOfficeCountiesLasted
Dec 25, 6:43 AM ESTSevere Thunderstorm WarningJAXHamilton32 min
Dec 25, 6:47 AM ESTSevere Thunderstorm WarningJAXEchols43 min
Dec 25, 7:11 AM ESTSevere Thunderstorm WarningTAEDixie49 min
Dec 25, 7:27 AM ESTTornado WarningTAEDixie33 min
Dec 25, 7:41 AM ESTSevere Thunderstorm WarningJAXColumbia, Suwannee34 min
Dec 25, 7:48 AM ESTTornado WarningJAXColumbia, Suwannee27 min
Dec 25, 8:16 AM ESTSevere Thunderstorm WarningJAXColumbia29 min
Dec 25, 8:35 AM ESTSevere Thunderstorm WarningJAXBaker, Union55 min
Dec 25, 8:59 AM ESTSevere Thunderstorm WarningJAXPierce31 min
Dec 25, 9:21 AM ESTSevere Thunderstorm WarningJAXWayne39 min
Dec 25, 10:45 AM ESTSevere Thunderstorm WarningJAXClay30 min
Dec 25, 10:59 AM ESTTornado WarningJAXClay, Duval, Saint Johns31 min
Dec 25, 11:06 AM ESTSevere Thunderstorm WarningTBWHillsborough, Pasco39 min
Dec 25, 11:32 AM ESTTornado WarningTBWPasco28 min
Dec 25, 11:55 AM ESTSevere Thunderstorm WarningJAXMarion23 min
Dec 25, 12:07 PM ESTTornado WarningTBWHillsborough23 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

Jacksonville, FL (KJAX), launched 00:00Z, 11.3 hours before the alert went out and 104 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, Jacksonville, FL at 00:00Z on 2006-12-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Jacksonville, FL at 00:00Z on 2006-12-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 134 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
672 m above ground
0-6 km bulk shear
56 kt
0-1 km storm-relative helicity
134 m²/s²
0-3 km storm-relative helicity
221 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
Dec 25, 2:51 AM ESTMesoscale DiscussionSPCDixie, Franklin, Lafayette, Taylor, Wakulla54 min
Dec 25, 9:39 AM ESTMesoscale DiscussionSPCBrevard, Charlotte, DeSoto, Glades, Hardee, Highlands and 10 more96 min
Dec 25, 10:08 AM ESTTornado WatchSPCBrevard, Charlotte, Collier, DeSoto, Glades, Hardee and 16 more7 hr
Dec 25, 12:01 PM ESTMesoscale DiscussionSPCAlachua, Baker, Bradford, Citrus, Clay, Duval and 13 more59 min
Dec 25, 3:05 PM ESTMesoscale DiscussionSPCBrevard, Broward, Charlotte, Collier, DeSoto, Flagler and 24 more85 min
Dec 25, 8:00 AM ESTMesoscale DiscussionSPCAppling, Bacon, Bryan, Bulloch, Chatham, Effingham and 6 more90 min
Dec 25, 8:47 AM ESTTornado WatchSPCBryan, Bulloch, Candler, Chatham, Effingham, Evans and 4 more6 hr
Dec 25, 1:19 PM ESTMesoscale DiscussionSPCBryan, Chatham, Effingham, Liberty56 min

Nearby

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