Alert archive / Georgia / Tornado Watches in 2010

Tornado Watch 65

April 8, 20104 counties in Alabama; 13 counties in Florida; 26 counties in Georgia

The Storm Prediction Center issued this tornado watch at Apr 8, 2010, 1:02 PM CDT for 4 counties in Alabama; 13 counties in Florida; 26 counties in Georgia. It was in force for 4 hr.

The area

The outline as issued.

The facts

Issued
Apr 8, 2010, 1:02 PM CDT (18:02 UTC)
Expired
Apr 8, 2010, 5:05 PM CDT
In force
4 hr
Issued by
the Storm Prediction Center
Largest hail expected
0.5 in
Strongest gust expected
60 kt
All 43 counties

Dale County, AL, Geneva County, AL, Henry County, AL, Houston County, AL, 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, Wakulla County, FL, Walton County, FL, Washington County, FL, Baker County, GA, Ben Hill County, GA, Berrien County, GA, Brooks County, GA, Calhoun County, GA, Clay County, GA, Colquitt County, GA, Cook County, GA, Decatur County, GA, Dougherty County, GA, Early County, GA, Grady County, GA, Irwin County, GA, Lanier County, GA, Lee County, GA, Lowndes County, GA, Miller County, GA, Mitchell County, GA, Quitman County, GA, Randolph County, GA, Seminole County, GA, Terrell County, GA, Thomas County, GA, Tift County, GA, Turner County, GA, Worth County, GA

What SPC expected

The probabilities SPC published with the watch, for the watch area over its life.

Two or more tornadoes
30%
One or more EF2 to EF5 tornadoes
10%
Ten or more severe wind reports
20%
One or more gusts of 65 knots or more
10%
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
40%

Warnings issued inside it

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

IssuedProductOfficeCountiesLasted
Apr 8, 1:35 PM CDTTornado WarningTAEGadsden, Leon25 min
Apr 8, 1:58 PM CDTSevere Thunderstorm WarningTAEHenry47 min
Apr 8, 2:03 PM CDTTornado WarningTAECalhoun, Clay, Early27 min
Apr 8, 2:31 PM CDTSevere Thunderstorm WarningTAEBaker, Calhoun, Dougherty, Early29 min
Apr 8, 3:16 PM CDTSevere Thunderstorm WarningTAEDougherty, Lee29 min
Apr 8, 4:43 PM CDTSevere Thunderstorm WarningTAEBrooks, Lanier, Lowndes32 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, 6.0 hours before the alert went out and 92 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 2010-04-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 130 joules per kilogram.LCLLFCEL10008507005003002001001 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 2010-04-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 71 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
130 J/kg
Mixed-layer CIN
-43 J/kg
Mixed-layer LCL
1005 m above ground
0-6 km bulk shear
28 kt
0-1 km storm-relative helicity
71 m²/s²
0-3 km storm-relative helicity
85 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.6

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 7, 7:31 PM CDTSevere Thunderstorm WatchSPCColbert, Franklin, Lauderdale5 hr
Apr 7, 10:16 PM CDTMesoscale DiscussionSPCLauderdale119 min
Apr 7, 11:48 PM CDTMesoscale DiscussionSPCColbert, Lauderdale, Limestone57 min
Apr 8, 11:24 AM CDTMesoscale DiscussionSPCBarbour, Bullock, Coffee, Covington, Dale, Geneva and 6 more66 min
Apr 8, 4:37 PM CDTMesoscale DiscussionSPCBay, Calhoun, Gadsden, Gulf, Hamilton, Jackson and 8 more83 min
Apr 8, 5:01 PM CDTTornado WatchSPCCalhoun, Franklin, Gadsden, Gulf, Hamilton, Jackson and 8 more4 hr
Apr 8, 6:42 PM CDTMesoscale DiscussionSPCFranklin, Gadsden, Hamilton, Jefferson, Lafayette, Leon and 5 more2 hr
Apr 8, 3:00 PM CDTMesoscale DiscussionSPCBaldwin, Bibb, Bleckley, Columbia, Crawford, Crisp and 32 more2 hr
Apr 8, 3:28 PM CDTTornado WatchSPCBaldwin, Bibb, Bleckley, Bulloch, Burke, Candler and 53 more7 hr
Apr 8, 6:23 PM CDTMesoscale DiscussionSPCBaldwin, Bibb, Bleckley, Bulloch, Burke, Candler and 32 more2 hr

Nearby

Tornado Watches in Georgia, 2010Tornado Watches in Florida, 2010Tornado Watches in Alabama, 2010Every tornado watch in 2010

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.