Alert archive / Georgia / Tornado Watches in 2007
Tornado Watch 144
The Storm Prediction Center issued this tornado watch at Apr 14, 2007, 10:45 PM CDT for Henry County, Houston County, Alabama; 10 counties in Florida; 63 counties in Georgia. It was in force for 6 hr.
The area
The outline as issued.
The facts
- Issued
- Apr 14, 2007, 10:45 PM CDT (03:45 UTC)
- Expired
- Apr 15, 2007, 5:00 AM CDT
- In force
- 6 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 2 in
- Strongest gust expected
- 60 kt
All 75 counties
Henry County, AL, Houston County, AL, Calhoun County, FL, Franklin County, FL, Gadsden County, FL, Gulf County, FL, Jackson County, FL, Jefferson County, FL, Leon County, FL, Liberty County, FL, Madison County, FL, Wakulla County, FL, Appling County, GA, Atkinson County, GA, Bacon County, GA, Baker County, GA, Ben Hill County, GA, Berrien County, GA, Bleckley County, GA, Brooks County, GA, Bryan County, GA, Bulloch County, GA, Calhoun County, GA, Candler County, GA, Chatham County, GA, Clay County, GA, Clinch County, GA, Coffee County, GA, Colquitt County, GA, Cook County, GA, Crisp County, GA, Decatur County, GA, Dodge County, GA, Dooly County, GA, Dougherty County, GA, Early County, GA, Echols County, GA, Effingham County, GA, Emanuel County, GA, Evans County, GA, Grady County, GA, Irwin County, GA, Jeff Davis County, GA, Jenkins County, GA, Johnson County, GA, Lanier County, GA, Laurens County, GA, Lee County, GA, Liberty County, GA, Long County, GA, Lowndes County, GA, McIntosh County, GA, Miller County, GA, Mitchell County, GA, Montgomery County, GA, Pulaski County, GA, Quitman County, GA, Randolph County, GA, Screven County, GA, Seminole County, GA, Stewart County, GA, Sumter County, GA, Tattnall County, GA, Telfair County, GA, Terrell County, GA, Thomas County, GA, Tift County, GA, Toombs County, GA, Treutlen County, GA, Turner County, GA, Wayne County, GA, Webster County, GA, Wheeler County, GA, Wilcox 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
- 20%
- Ten or more severe hail reports
- 30%
- One or more hailstones of 2 inches or more
- 20%
- Six or more combined severe hail and wind reports
- 60%
Warnings issued inside it
29 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 14, 10:53 PM CDT | Severe Thunderstorm Warning | TAE | Worth | 42 min |
| Apr 14, 11:05 PM CDT | Severe Thunderstorm Warning | TAE | Turner | 40 min |
| Apr 14, 11:41 PM CDT | Severe Thunderstorm Warning | TAE | Irwin, Tift | 49 min |
| Apr 15, 12:10 AM CDT | Severe Thunderstorm Warning | FFC | Dodge | 35 min |
| Apr 15, 12:22 AM CDT | Tornado Warning | FFC | Dodge | 23 min |
| Apr 15, 12:31 AM CDT | Severe Thunderstorm Warning | FFC | Laurens | 44 min |
| Apr 15, 12:41 AM CDT | Tornado Warning | FFC | Laurens | 34 min |
| Apr 15, 12:43 AM CDT | Tornado Warning | FFC | Telfair, Wheeler | 32 min |
| Apr 15, 12:50 AM CDT | Tornado Warning | FFC | Treutlen | 25 min |
| Apr 15, 12:58 AM CDT | Tornado Warning | FFC | Montgomery | 32 min |
| Apr 15, 1:00 AM CDT | Tornado Warning | FFC | Johnson | 35 min |
| Apr 15, 1:04 AM CDT | Tornado Warning | FFC | Emanuel | 41 min |
| Apr 15, 1:07 AM CDT | Severe Thunderstorm Warning | TAE | Franklin | 38 min |
| Apr 15, 1:17 AM CDT | Tornado Warning | FFC | Treutlen | 28 min |
| Apr 15, 1:40 AM CDT | Tornado Warning | FFC | Emanuel | 35 min |
| Apr 15, 1:45 AM CDT | Severe Thunderstorm Warning | TAE | Franklin | 45 min |
| Apr 15, 1:47 AM CDT | Tornado Warning | CHS | Candler | 43 min |
| Apr 15, 1:54 AM CDT | Tornado Warning | CHS | Jenkins | 51 min |
| Apr 15, 2:03 AM CDT | Tornado Warning | TAE | Franklin | 27 min |
| Apr 15, 2:09 AM CDT | Severe Thunderstorm Warning | CHS | Bulloch | 23 min |
| Apr 15, 2:10 AM CDT | Severe Thunderstorm Warning | TAE | Turner, Worth | 35 min |
| Apr 15, 2:16 AM CDT | Severe Thunderstorm Warning | FFC | Crisp | 29 min |
| Apr 15, 2:20 AM CDT | Severe Thunderstorm Warning | CHS | Screven | 55 min |
| Apr 15, 2:22 AM CDT | Tornado Warning | TAE | Worth | 23 min |
| Apr 15, 2:23 AM CDT | Tornado Warning | FFC | Crisp | 37 min |
| Apr 15, 2:33 AM CDT | Tornado Warning | FFC | Wilcox | 42 min |
| Apr 15, 2:38 AM CDT | Tornado Warning | FFC | Bleckley | 25 min |
| Apr 15, 2:51 AM CDT | Severe Thunderstorm Warning | FFC | Dodge | 39 min |
| Apr 15, 3:25 AM CDT | Severe Thunderstorm Warning | FFC | Dodge, Laurens | 50 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, 3.8 hours before the alert went out and 148 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
- 791 J/kg
- Mixed-layer CIN
- -4 J/kg
- Mixed-layer LCL
- 504 m above ground
- 0-6 km bulk shear
- 65 kt
- 0-1 km storm-relative helicity
- 222 m²/s²
- 0-3 km storm-relative helicity
- 198 m²/s²
- Significant tornado parameter
- 1.2
- Supercell composite
- 5.0
The text
As transmitted, in the capitals the NWS used until 2016.
000
WWUS20 KWNS 150347
SEL4
SPC WW 150347
ALZ000-FLZ000-GAZ000-151000-
URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 144
NWS STORM PREDICTION CENTER NORMAN OK
1145 PM EDT SAT APR 14 2007
THE NWS STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF
SMALL PART OF SOUTHEAST ALABAMA
PART OF FLORIDA PAN HANDLE
LARGE PART OF SOUTHERN GEORGIA
EFFECTIVE THIS SATURDAY NIGHT AND SUNDAY MORNING FROM 1145 PM
UNTIL 600 AM EDT.
TORNADOES...HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND
GUSTS TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE
AREAS.
THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 60 STATUTE
MILES NORTH AND SOUTH OF A LINE FROM 15 MILES WEST SOUTHWEST OF
MARIANNA FLORIDA TO 65 MILES EAST NORTHEAST OF VIDALIA GEORGIA.
FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH
OUTLINE UPDATE (WOUS64 KWNS WOU4).
REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR
TORNADOES AND SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH
AREA. PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR
THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS
AND POSSIBLE WARNINGS.
OTHER WATCH INFORMATION...THIS TORNADO WATCH REPLACES TORNADO
WATCH NUMBER 142. WATCH NUMBER 142 WILL NOT BE IN EFFECT AFTER
1145 PM EDT. CONTINUE...WW 143...
DISCUSSION...WHILE TORNADO THREAT HAS DIMINISHED FROM EARLIER THIS
EVENING...THE SHEAR REMAINS VERY STRONG ACROSS THE WATCH AREA. WITH
A VERY MOIST AND MODESTLY UNSTABLE AIR MASS...POTENTIAL REMAINS FOR
DEVELOPMENT OF SUPERCELLS AND AT LEAST AN ISOLATED TORNADO THREAT AS
STORMS CONTINUE EWD FROM SERN AL/FL PANHANDLE INTO SRN GA WITH
APPROACH OF THE STRONG UPPER JET AND S/W TROUGH.
AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 2 INCHES. EXTREME TURBULENCE AND SURFACE
WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
500. MEAN STORM MOTION VECTOR 24035.
...HALESSPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 14, 7:09 PM CDT | Mesoscale Discussion | SPC | Autauga, Baldwin, Barbour, Bullock, Butler, Chambers and 28 more | 2 hr |
| Apr 15, 1:27 AM CDT | Mesoscale Discussion | SPC | Alachua, Citrus, Dixie, Franklin, Gilchrist, Hernando and 4 more | 2 hr |
| Apr 15, 8:31 AM CDT | Mesoscale Discussion | SPC | Brevard, Broward, Charlotte, Collier, DeSoto, Flagler and 22 more | 59 min |
| Apr 15, 8:45 AM CDT | Tornado Watch | SPC | Brevard, Broward, Charlotte, Collier, DeSoto, Glades and 18 more | 7 hr |
| Apr 15, 12:03 PM CDT | Mesoscale Discussion | SPC | Broward, Collier, Glades, Hendry, Highlands, Indian River and 7 more | 117 min |
| Apr 15, 2:42 PM CDT | Mesoscale Discussion | SPC | Broward, Miami-Dade, Monroe, Palm Beach | 93 min |
| Apr 14, 9:10 PM CDT | Mesoscale Discussion | SPC | Burke, Columbia, Jenkins, Lincoln, Richmond, Screven | 95 min |
| Apr 15, 1:01 AM CDT | Tornado Watch | SPC | Burke | 7 hr |
| Apr 15, 2:57 AM CDT | Mesoscale Discussion | SPC | Appling, Atkinson, Bacon, Ben Hill, Berrien, Bleckley and 39 more | 93 min |
| Apr 15, 4:57 AM CDT | Tornado Watch | SPC | Appling, Atkinson, Bacon, Bryan, Bulloch, Candler and 14 more | 5 hr |
| Apr 15, 9:20 AM CDT | Mesoscale Discussion | SPC | Chatham | 55 min |
| Apr 15, 2:33 AM CDT | Mesoscale Discussion | SPC | Chesterfield, Darlington, Fairfield, Kershaw, Lancaster, Lee and 3 more | 87 min |
| Apr 15, 6:39 AM CDT | Mesoscale Discussion | SPC | Bamberg, Berkeley, Calhoun, Charleston, Chesterfield, Clarendon and 13 more | 66 min |
| Apr 15, 7:08 AM CDT | Tornado Watch | SPC | Allendale, Bamberg, Barnwell, Beaufort, Berkeley, Calhoun and 17 more | 7 hr |
| Apr 15, 10:15 AM CDT | Mesoscale Discussion | SPC | Berkeley, Charleston, Dillon, Dorchester, Florence, Georgetown and 3 more | 2 hr |
| Apr 15, 11:19 AM CDT | Mesoscale Discussion | SPC | Chester, Lancaster, York | 86 min |
Nearby
Tornado Watches in Georgia, 2007Tornado Watches in Florida, 2007Tornado Watches in Alabama, 2007Every tornado watch in 2007
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.