Alert archive / Georgia / Tornado Watches in 2008
Tornado Watch 308
The Storm Prediction Center issued this tornado watch at May 11, 2008, 2:42 PM EDT for 7 counties in Florida; 35 counties in Georgia. It was in force for 5 hr.
The area
The outline as issued.
The facts
- Issued
- May 11, 2008, 2:42 PM EDT (18:42 UTC)
- Expired
- May 11, 2008, 8:00 PM EDT
- In force
- 5 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 2 in
- Strongest gust expected
- 60 kt
All 42 counties
Baker County, FL, Columbia County, FL, Hamilton County, FL, Jefferson County, FL, Madison County, FL, Nassau County, FL, Suwannee County, FL, Appling County, GA, Atkinson County, GA, Bacon County, GA, Ben Hill County, GA, Berrien County, GA, Brantley County, GA, Brooks County, GA, Bryan County, GA, Camden County, GA, Charlton County, GA, Chatham County, GA, Clinch County, GA, Coffee County, GA, Colquitt County, GA, Cook County, GA, Decatur County, GA, Echols County, GA, Evans County, GA, Glynn County, GA, Grady County, GA, Irwin County, GA, Jeff Davis County, GA, Lanier County, GA, Liberty County, GA, Long County, GA, Lowndes County, GA, McIntosh County, GA, Mitchell County, GA, Pierce County, GA, Tattnall County, GA, Thomas County, GA, Tift County, GA, Ware County, GA, Wayne 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
- 40%
- One or more EF2 to EF5 tornadoes
- 20%
- Ten or more severe wind reports
- 30%
- 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
- 70%
Warnings issued inside it
10 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 11, 2:45 PM EDT | Severe Thunderstorm Warning | JAX | Appling, Wayne | 30 min |
| May 11, 2:50 PM EDT | Severe Thunderstorm Warning | CHS | Liberty, Long, Tattnall | 40 min |
| May 11, 2:52 PM EDT | Severe Thunderstorm Warning | JAX | Atkinson, Bacon, Coffee, Ware | 38 min |
| May 11, 3:20 PM EDT | Severe Thunderstorm Warning | JAX | Brantley, Pierce, Wayne | 30 min |
| May 11, 3:26 PM EDT | Severe Thunderstorm Warning | CHS | Liberty, Long, McIntosh | 49 min |
| May 11, 3:43 PM EDT | Severe Thunderstorm Warning | CHS | McIntosh | 32 min |
| May 11, 3:51 PM EDT | Severe Thunderstorm Warning | JAX | Glynn, Wayne | 24 min |
| May 11, 3:52 PM EDT | Tornado Warning | CHS | Liberty, McIntosh | 23 min |
| May 11, 4:24 PM EDT | Severe Thunderstorm Warning | JAX | Glynn, Pierce, Wayne | 36 min |
| May 11, 4:44 PM EDT | Severe Thunderstorm Warning | CHS | Liberty, Long, McIntosh | 19 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, 6.7 hours before the alert went out and 142 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.
- Mixed-layer CAPE
- 2007 J/kg
- Mixed-layer CIN
- -15 J/kg
- Mixed-layer LCL
- 565 m above ground
- 0-6 km bulk shear
- 64 kt
- 0-1 km storm-relative helicity
- 322 m²/s²
- 0-3 km storm-relative helicity
- 360 m²/s²
- Significant tornado parameter
- 4.7
- Supercell composite
- 15.9
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 11, 5:38 AM EDT | Mesoscale Discussion | SPC | Baker, Bradford, Clay, Columbia, Duval, Gadsden and 12 more | 67 min |
| May 11, 5:52 AM EDT | Tornado Watch | SPC | Baker, Bay, Calhoun, Columbia, Duval, Franklin and 16 more | 8 hr |
| May 11, 7:24 AM EDT | Mesoscale Discussion | SPC | Baker, Calhoun, Columbia, Duval, Gadsden, Hamilton and 8 more | 96 min |
| May 11, 8:51 AM EDT | Mesoscale Discussion | SPC | Baker, Duval, Gadsden, Hamilton, Jackson, Leon and 3 more | 84 min |
| May 11, 12:15 PM EDT | Mesoscale Discussion | SPC | Alachua, Baker, Bradford, Clay, Columbia, Duval and 14 more | 60 min |
| May 11, 2:24 PM EDT | Mesoscale Discussion | SPC | Baker, Bradford, Calhoun, Clay, Columbia, Duval and 13 more | 66 min |
| May 11, 4:43 PM EDT | Mesoscale Discussion | SPC | Hamilton, Jefferson, Madison, Nassau | 2 hr |
| May 10, 8:14 PM EDT | Mesoscale Discussion | SPC | Appling, Baldwin, Bibb, Bleckley, Bryan, Bulloch and 77 more | 2 hr |
| May 10, 9:54 PM EDT | Mesoscale Discussion | SPC | Appling, Bacon, Baldwin, Ben Hill, Bibb, Bleckley and 88 more | 96 min |
| May 10, 10:06 PM EDT | Tornado Watch | SPC | Appling, Bacon, Baldwin, Banks, Barrow, Bartow and 112 more | 7 hr |
| May 11, 12:32 AM EDT | Mesoscale Discussion | SPC | Chattooga, Dade, Floyd, Haralson, Polk, Walker | 118 min |
| May 11, 2:06 AM EDT | Mesoscale Discussion | SPC | Baldwin, Banks, Barrow, Bartow, Bibb, Bleckley and 93 more | 84 min |
| May 11, 2:37 AM EDT | Tornado Watch | SPC | Baldwin, Banks, Barrow, Bartow, Bibb, Bleckley and 100 more | 7 hr |
| May 11, 4:40 AM EDT | Mesoscale Discussion | SPC | Appling, Baldwin, Barrow, Bibb, Bleckley, Bryan and 87 more | 95 min |
| May 11, 6:13 AM EDT | Mesoscale Discussion | SPC | Appling, Atkinson, Bacon, Baker, Baldwin, Ben Hill and 62 more | 92 min |
| May 11, 7:06 PM EDT | Mesoscale Discussion | SPC | Bryan, Chatham, Effingham, Liberty, Long, McIntosh | 84 min |
Nearby
Tornado Watches in Georgia, 2008Tornado Watches in Florida, 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.