Alert archive / Florida / Tornado Watches in 2013

Tornado Watch 576

November 26, 201324 counties in Florida; 21 counties in Georgia

The Storm Prediction Center issued this tornado watch at Nov 26, 2013, 3:01 PM EST for 24 counties in Florida; 21 counties in Georgia. It was in force for 7 hr.

The area

The outline as issued.

The facts

Issued
Nov 26, 2013, 3:01 PM EST (20:01 UTC)
Expired
Nov 26, 2013, 10:00 PM EST
In force
7 hr
Issued by
the Storm Prediction Center
Largest hail expected
0.5 in
Strongest gust expected
60 kt
All 45 counties

Alachua County, FL, Baker County, FL, Bradford County, FL, Citrus County, FL, Columbia County, FL, Dixie County, FL, Gilchrist County, FL, Hamilton County, FL, Hernando County, FL, Hillsborough County, FL, Jefferson County, FL, Lafayette County, FL, Levy County, FL, Madison County, FL, Manatee County, FL, Marion County, FL, Pasco County, FL, Pinellas County, FL, Polk County, FL, Sarasota County, FL, Sumter County, FL, Suwannee County, FL, Taylor County, FL, Union County, FL, Baker County, GA, Ben Hill County, GA, Berrien County, GA, Brooks County, GA, Charlton County, GA, Clinch County, GA, Colquitt County, GA, Cook County, GA, Decatur County, GA, Dougherty County, GA, Echols County, GA, Grady County, GA, Irwin County, GA, Lanier County, GA, Lowndes County, GA, Mitchell County, GA, Thomas County, GA, Tift County, GA, Turner County, GA, Ware County, GA, Worth County, GA

The radar

The Moody AFB radar (KVAX), 147 km from the middle of the area, began a volume at 20:03 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
40%
One or more gusts of 65 knots or more
10%
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

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

IssuedProductOfficeCountiesLasted
Nov 26, 3:19 PM ESTSevere Thunderstorm WarningTAEDecatur, Grady, Mitchell41 min
Nov 26, 3:43 PM ESTSevere Thunderstorm WarningTAEGrady, Thomas32 min
Nov 26, 5:35 PM ESTSevere Thunderstorm WarningJAXBacon, Pierce, Ware40 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

Tallahassee Rgnl, FL (KTLH), launched 12:00Z, 8.0 hours before the alert went out and 150 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, Tallahassee Rgnl, FL at 12:00Z on 2013-11-26Temperature 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, Tallahassee Rgnl, FL at 12:00Z on 2013-11-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 315 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
516 m above ground
0-6 km bulk shear
56 kt
0-1 km storm-relative helicity
315 m²/s²
0-3 km storm-relative helicity
386 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
Nov 26, 6:26 AM ESTMesoscale DiscussionSPCBay, Calhoun, Franklin, Gadsden, Gulf, Jackson and 5 more3 hr
Nov 26, 9:54 AM ESTTornado WatchSPCBay, Calhoun, Franklin, Gadsden, Gulf, Holmes and 8 more7 hr
Nov 26, 1:18 PM ESTMesoscale DiscussionSPCAlachua, Baker, Bay, Calhoun, Citrus, Columbia and 26 more87 min
Nov 26, 6:04 PM ESTMesoscale DiscussionSPCAlachua, Baker, Bradford, Citrus, Columbia, Dixie and 15 more86 min
Nov 26, 3:43 PM ESTMesoscale DiscussionSPCBryan, Bulloch, Chatham, Effingham, Evans, Liberty and 2 more2 hr
Nov 26, 5:40 PM ESTTornado WatchSPCAppling, Atkinson, Bacon, Brantley, Bryan, Bulloch and 13 more7 hr

Nearby

Tornado Watches in Florida, 2013Tornado Watches in Georgia, 2013Every tornado watch in 2013

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.