Alert archive / Florida / Tornado Watches in 2013

Tornado Watch 575

November 26, 201314 counties in Florida

The Storm Prediction Center issued this tornado watch at Nov 26, 2013, 8:54 AM CST for 14 counties in Florida. It was in force for 7 hr.

The area

The outline as issued.

The facts

Issued
Nov 26, 2013, 8:54 AM CST (14:54 UTC)
Expired
Nov 26, 2013, 4:00 PM CST
In force
7 hr
Issued by
the Storm Prediction Center
Largest hail expected
0.5 in
Strongest gust expected
60 kt

Counties Bay County, FL, Calhoun County, FL, Franklin County, FL, Gadsden County, FL, Gulf County, FL, Holmes County, FL, Jackson County, FL, Jefferson County, FL, Leon County, FL, Liberty County, FL, Taylor County, FL, Wakulla County, FL, Walton County, FL, Washington County, FL

The radar

The Eglin Afb radar (KEVX), 79 km from the middle of the area, began a volume at 14:56 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
20%
One or more EF2 to EF5 tornadoes
20%
Ten or more severe wind reports
30%
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
50%

Warnings issued inside it

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

IssuedProductOfficeCountiesLasted
Nov 26, 9:06 AM CSTSevere Thunderstorm WarningTAEFranklin, Wakulla39 min
Nov 26, 9:12 AM CSTTornado WarningTAECalhoun, Gulf, Liberty33 min
Nov 26, 9:15 AM CSTTornado WarningTAEFranklin, Liberty30 min
Nov 26, 9:43 AM CSTTornado WarningTAEBay, Calhoun32 min
Nov 26, 10:13 AM CSTTornado WarningTAECalhoun32 min
Nov 26, 10:43 AM CSTSevere Thunderstorm WarningTAELeon, Wakulla47 min
Nov 26, 2:43 PM CSTSevere Thunderstorm WarningTAELeon32 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, 2.9 hours before the alert went out and 88 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, 5:26 AM CSTMesoscale DiscussionSPCBay, Calhoun, Franklin, Gadsden, Gulf, Jackson and 5 more3 hr
Nov 26, 12:18 PM CSTMesoscale DiscussionSPCAlachua, Baker, Bay, Calhoun, Citrus, Columbia and 26 more87 min
Nov 26, 2:01 PM CSTTornado WatchSPCAlachua, Baker, Bradford, Citrus, Columbia, Dixie and 18 more7 hr
Nov 26, 5:04 PM CSTMesoscale DiscussionSPCAlachua, Baker, Bradford, Citrus, Columbia, Dixie and 15 more86 min

Nearby

Tornado Watches in Florida, 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.