Alert archive / Georgia / Severe Thunderstorm Watches in 2014

Severe Thunderstorm Watch 261

June 8, 201414 counties in Alabama; 15 counties in Florida; 18 counties in Georgia

The Storm Prediction Center issued this severe thunderstorm watch at Jun 8, 2014, 1:49 PM CDT for 14 counties in Alabama; 15 counties in Florida; 18 counties in Georgia. It was in force for 7 hr.

The area

The outline as issued.

The facts

Issued
Jun 8, 2014, 1:49 PM CDT (18:49 UTC)
Expired
Jun 8, 2014, 9:00 PM CDT
In force
7 hr
Issued by
the Storm Prediction Center
Largest hail expected
1.5 in
Strongest gust expected
60 kt
All 47 counties

Butler County, AL, Choctaw County, AL, Clarke County, AL, Coffee County, AL, Conecuh County, AL, Covington County, AL, Crenshaw County, AL, Dale County, AL, Escambia County, AL, Geneva County, AL, Henry County, AL, Houston County, AL, Monroe County, AL, Wilcox County, AL, Bay County, FL, Calhoun County, FL, Escambia County, FL, Gadsden County, FL, Holmes County, FL, Jackson County, FL, Jefferson County, FL, Leon County, FL, Liberty County, FL, Madison County, FL, Okaloosa County, FL, Santa Rosa County, FL, Wakulla County, FL, Walton County, FL, Washington County, FL, Baker County, GA, Brooks County, GA, Calhoun County, GA, Clay County, GA, Colquitt County, GA, Decatur County, GA, Dougherty County, GA, Early County, GA, Grady County, GA, Lee County, GA, Miller County, GA, Mitchell County, GA, Quitman County, GA, Randolph County, GA, Seminole County, GA, Terrell County, GA, Thomas County, GA, Worth County, GA

The radar

The Ft Rucker radar (KEOX), 71 km from the middle of the area, began a volume at 18:52 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
10%
One or more EF2 to EF5 tornadoes
5%
Ten or more severe wind reports
40%
One or more gusts of 65 knots or more
10%
Ten or more severe hail reports
30%
One or more hailstones of 2 inches or more
10%
Six or more combined severe hail and wind reports
60%

Warnings issued inside it

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

IssuedProductOfficeCountiesLasted
Jun 8, 2:31 PM CDTSevere Thunderstorm WarningTAEGadsden, Leon44 min
Jun 8, 2:39 PM CDTSevere Thunderstorm WarningMOBButler, Covington, Crenshaw66 min
Jun 8, 2:51 PM CDTSevere Thunderstorm WarningTAEGadsden, Leon, Wakulla39 min
Jun 8, 3:00 PM CDTSevere Thunderstorm WarningTAEClay, Quitman, Randolph45 min
Jun 8, 3:28 PM CDTSevere Thunderstorm WarningTAEJefferson, Leon, Wakulla47 min
Jun 8, 3:36 PM CDTSevere Thunderstorm WarningMOBButler, Conecuh, Monroe28 min
Jun 8, 3:52 PM CDTSevere Thunderstorm WarningTAEJefferson, Wakulla38 min
Jun 8, 3:58 PM CDTSevere Thunderstorm WarningTAECoffee47 min
Jun 8, 4:10 PM CDTSevere Thunderstorm WarningTAEJefferson, Leon, Wakulla50 min
Jun 8, 4:29 PM CDTSevere Thunderstorm WarningTAECoffee, Dale, Geneva, Houston46 min
Jun 8, 4:36 PM CDTSevere Thunderstorm WarningTAEWalton39 min
Jun 8, 4:37 PM CDTSevere Thunderstorm WarningMOBOkaloosa53 min
Jun 8, 4:40 PM CDTSevere Thunderstorm WarningTAEGeneva50 min
Jun 8, 4:43 PM CDTSevere Thunderstorm WarningTAEJefferson, Madison47 min
Jun 8, 5:03 PM CDTSevere Thunderstorm WarningTAEBaker, Decatur, Grady, Mitchell, Thomas42 min
Jun 8, 5:07 PM CDTSevere Thunderstorm WarningTAEWalton38 min
Jun 8, 5:14 PM CDTSevere Thunderstorm WarningTAEHouston46 min
Jun 8, 5:19 PM CDTSevere Thunderstorm WarningTAEDale, Geneva, Houston41 min
Jun 8, 5:38 PM CDTSevere Thunderstorm WarningTAEHolmes, Jackson52 min
Jun 8, 5:42 PM CDTSevere Thunderstorm WarningTAEGrady16 min
Jun 8, 5:59 PM CDTSevere Thunderstorm WarningTAEHouston31 min
Jun 8, 6:29 PM CDTSevere Thunderstorm WarningTAEGadsden, Jackson46 min
Jun 8, 6:46 PM CDTSevere Thunderstorm WarningMOBCovington, Escambia59 min
Jun 8, 7:19 PM CDTSevere Thunderstorm WarningMOBEscambia56 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, 6.8 hours before the alert went out and 197 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 2014-06-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 659 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 2014-06-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 28 square meters per square second.193958Sfc1 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
659 J/kg
Mixed-layer CIN
-132 J/kg
Mixed-layer LCL
924 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
28 m²/s²
0-3 km storm-relative helicity
20 m²/s²
Significant tornado parameter
-0.0
Supercell composite
-0.8

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 7, 8:28 PM CDTMesoscale DiscussionSPCBlount, Calhoun, Cherokee, Cleburne, Cullman, Etowah and 7 more2 hr
Jun 8, 11:24 AM CDTMesoscale DiscussionSPCAutauga, Bibb, Chilton, Dallas, Greene, Hale and 4 more66 min
Jun 8, 12:49 PM CDTSevere Thunderstorm WatchSPCAutauga, Barbour, Bibb, Bullock, Chilton, Clay and 21 more8 hr
Jun 8, 1:11 PM CDTMesoscale DiscussionSPCButler, Clarke, Coffee, Conecuh, Covington, Crenshaw and 6 more3 hr
Jun 8, 3:08 PM CDTMesoscale DiscussionSPCAutauga, Bibb, Chilton, Choctaw, Clay, Coosa and 16 more97 min
Jun 8, 3:23 PM CDTMesoscale DiscussionSPCBarbour, Butler, Clarke, Coffee, Conecuh, Covington and 8 more97 min
Jun 8, 12:57 PM CDTMesoscale DiscussionSPCAlachua, Baker, Bradford, Brevard, Broward, Charlotte and 38 more3 hr
Jun 8, 11:45 AM CDTMesoscale DiscussionSPCBryan, Bulloch, Burke, Candler, Chatham, Columbia and 17 more3 hr

Nearby

Severe Thunderstorm Watches in Georgia, 2014Severe Thunderstorm Watches in Florida, 2014Severe Thunderstorm Watches in Alabama, 2014Every severe thunderstorm watch in 2014

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.