Alert archive / Florida / Tornado Watches in 2008

Tornado Watch 104

March 7, 200827 counties in Florida; 7 counties in Georgia

The Storm Prediction Center issued this tornado watch at Mar 7, 2008, 6:45 AM EST for 27 counties in Florida; 7 counties in Georgia. It was in force for 5 hr.

The area

The outline as issued.

The facts

Issued
Mar 7, 2008, 6:45 AM EST (11:45 UTC)
Expired
Mar 7, 2008, 12:00 PM EST
In force
5 hr
Issued by
the Storm Prediction Center
Largest hail expected
1.5 in
Strongest gust expected
60 kt
All 34 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, Jefferson County, FL, Lafayette County, FL, Lake County, FL, Leon County, FL, Levy County, FL, Madison County, FL, Marion County, FL, Nassau County, FL, Putnam County, FL, Saint Johns County, FL, Sumter County, FL, Suwannee County, FL, Taylor County, FL, Union County, FL, Volusia County, FL, Wakulla County, FL, Brantley County, GA, Camden County, GA, Charlton County, GA, Clinch County, GA, Echols County, GA, Glynn County, GA, Ware County, GA

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
50%
One or more gusts of 65 knots or more
30%
Ten or more severe hail reports
40%
One or more hailstones of 2 inches or more
30%
Six or more combined severe hail and wind reports
80%

Warnings issued inside it

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

IssuedProductOfficeCountiesLasted
Mar 7, 6:49 AM ESTSevere Thunderstorm WarningTAEFranklin, Wakulla41 min
Mar 7, 7:02 AM ESTSevere Thunderstorm WarningTAEJefferson, Leon, Wakulla43 min
Mar 7, 7:05 AM ESTTornado WarningTAEJefferson, Leon, Wakulla25 min
Mar 7, 7:12 AM ESTTornado WarningTAEJefferson, Wakulla33 min
Mar 7, 7:16 AM ESTSevere Thunderstorm WarningTAEJefferson, Madison, Taylor44 min
Mar 7, 7:34 AM ESTSevere Thunderstorm WarningTAEJefferson, Madison41 min
Mar 7, 7:47 AM ESTSevere Thunderstorm WarningJAXCharlton, Clinch, Ware43 min
Mar 7, 8:04 AM ESTSevere Thunderstorm WarningTAEDixie, Lafayette, Taylor56 min
Mar 7, 8:08 AM ESTSevere Thunderstorm WarningTAEMadison52 min
Mar 7, 8:10 AM ESTSevere Thunderstorm WarningTAEMadison20 min
Mar 7, 8:14 AM ESTSevere Thunderstorm WarningJAXHamilton, Suwannee46 min
Mar 7, 8:19 AM ESTTornado WarningTAEDixie, Lafayette, Taylor41 min
Mar 7, 8:31 AM ESTTornado WarningTAEDixie44 min
Mar 7, 8:44 AM ESTTornado WarningTAELafayette, Taylor46 min
Mar 7, 8:48 AM ESTSevere Thunderstorm WarningJAXBaker, Columbia, Hamilton, Suwannee42 min
Mar 7, 8:59 AM ESTSevere Thunderstorm WarningTAELafayette, Taylor16 min
Mar 7, 9:02 AM ESTSevere Thunderstorm WarningJAXColumbia, Hamilton, Suwannee43 min
Mar 7, 9:02 AM ESTSevere Thunderstorm WarningTAEDixie, Lafayette43 min
Mar 7, 9:13 AM ESTTornado WarningJAXSuwannee32 min
Mar 7, 9:25 AM ESTTornado WarningJAXColumbia, Suwannee50 min
Mar 7, 9:26 AM ESTSevere Thunderstorm WarningJAXAlachua, Bradford, Columbia, Gilchrist, Union49 min
Mar 7, 9:32 AM ESTSevere Thunderstorm WarningJAXBrantley, Camden, Charlton, Glynn, Pierce, Ware and 1 more43 min
Mar 7, 9:39 AM ESTSevere Thunderstorm WarningJAXBaker, Bradford, Columbia, Gilchrist, Hamilton, Suwannee and 1 more51 min
Mar 7, 9:48 AM ESTTornado WarningJAXBrantley, Camden, Charlton, Ware42 min
Mar 7, 9:51 AM ESTTornado WarningJAXBaker39 min
Mar 7, 10:08 AM ESTSevere Thunderstorm WarningJAXClay, Duval, Nassau67 min
Mar 7, 10:14 AM ESTTornado WarningJAXBrantley, Camden, Glynn, Wayne46 min
Mar 7, 10:18 AM ESTTornado WarningJAXBaker, Duval, Nassau13 min
Mar 7, 10:27 AM ESTSevere Thunderstorm WarningJAXAlachua, Bradford, Gilchrist, Union48 min
Mar 7, 10:39 AM ESTSevere Thunderstorm WarningJAXBrantley, Camden, Glynn, Wayne51 min
Mar 7, 10:40 AM ESTTornado WarningJAXAlachua41 min
Mar 7, 10:55 AM ESTTornado WarningJAXDuval, Nassau35 min
Mar 7, 10:56 AM ESTSevere Thunderstorm WarningJAXMarion49 min
Mar 7, 11:15 AM ESTTornado WarningJAXBradford, Clay25 min
Mar 7, 11:15 AM ESTTornado WarningJAXNassau30 min
Mar 7, 11:25 AM ESTSevere Thunderstorm WarningJAXClay, Marion, Putnam50 min
Mar 7, 11:43 AM ESTSevere Thunderstorm WarningJAXClay, Saint Johns47 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 00:00Z, 11.8 hours before the alert went out and 140 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 00:00Z on 2008-03-07Temperature 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 00:00Z on 2008-03-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 212 square meters per square second.1939587897Sfc1 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
2126 m above ground
0-6 km bulk shear
64 kt
0-1 km storm-relative helicity
212 m²/s²
0-3 km storm-relative helicity
210 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
Mar 7, 3:49 AM ESTMesoscale DiscussionSPCBay, Calhoun, Escambia, Franklin, Gadsden, Gulf and 8 more86 min
Mar 7, 6:13 AM ESTMesoscale DiscussionSPCAlachua, Baker, Bay, Bradford, Calhoun, Citrus and 35 more2 hr
Mar 7, 11:29 AM ESTMesoscale DiscussionSPCCitrus, Flagler, Hernando, Hillsborough, Lake, Marion and 10 more2 hr
Mar 7, 11:59 AM ESTTornado WatchSPCBrevard, Citrus, Flagler, Hernando, Hillsborough, Lake and 12 more7 hr
Mar 7, 3:10 PM ESTMesoscale DiscussionSPCCitrus, Hernando, Hillsborough, Lake, Orange, Pasco and 4 more95 min
Mar 7, 5:50 PM ESTMesoscale DiscussionSPCBrevard, Charlotte, DeSoto, Flagler, Glades, Hardee and 19 more55 min
Mar 7, 6:35 PM ESTTornado WatchSPCBrevard, Charlotte, Collier, DeSoto, Glades, Hardee and 19 more7 hr
Mar 7, 4:51 PM ESTMesoscale DiscussionSPCChattahoochee, Clay, Early, Harris, Lamar, Marion and 13 more84 min

Nearby

Tornado Watches in Florida, 2008Tornado Watches in Georgia, 2008Every tornado watch in 2008

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.