Alert archive / Georgia / Tornado Watches in 2012
Tornado Watch 68
The Storm Prediction Center issued this tornado watch at Mar 3, 2012, 6:35 AM CST for Geneva County, Houston County, Alabama; 15 counties in Florida; 55 counties in Georgia. It was in force for 6 hr.
The area
The outline as issued.
The facts
- Issued
- Mar 3, 2012, 6:35 AM CST (12:35 UTC)
- Expired
- Mar 3, 2012, 1:00 PM CST
- In force
- 6 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 1.5 in
- Strongest gust expected
- 60 kt
All 72 counties
Geneva County, AL, Houston County, AL, Bay County, FL, Calhoun County, FL, Franklin County, FL, Gadsden County, FL, Gulf County, FL, Hamilton County, FL, Holmes County, FL, Jackson County, FL, Jefferson County, FL, Leon County, FL, Liberty County, FL, Madison County, FL, Wakulla County, FL, Walton County, FL, Washington County, FL, Appling County, GA, Atkinson County, GA, Bacon County, GA, Baker County, GA, Ben Hill County, GA, Berrien County, GA, Bleckley County, GA, Brantley County, GA, Brooks County, GA, Calhoun County, GA, Camden County, GA, Charlton 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, Emanuel County, GA, Glynn County, GA, Grady County, GA, Irwin County, GA, Jeff Davis County, GA, Johnson County, GA, Lanier County, GA, Laurens County, GA, Lee County, GA, Lowndes County, GA, Miller County, GA, Mitchell County, GA, Montgomery County, GA, Pierce County, GA, Pulaski County, GA, Quitman County, GA, Randolph County, GA, Seminole County, GA, Sumter County, GA, Telfair County, GA, Terrell County, GA, Thomas County, GA, Tift County, GA, Toombs County, GA, Treutlen County, GA, Turner County, GA, Ware County, GA, Wayne County, GA, Wheeler County, GA, Wilcox County, GA, Worth County, GA
The radar
The Tallahassee radar (KTLH), 76 km from the middle of the area, began a volume at 12:36 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
- 50%
- One or more EF2 to EF5 tornadoes
- 20%
- Ten or more severe wind reports
- 40%
- 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
- 70%
Warnings issued inside it
39 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 3, 6:42 AM CST | Tornado Warning | TAE | Dougherty, Mitchell, Worth | 33 min |
| Mar 3, 7:13 AM CST | Severe Thunderstorm Warning | TAE | Holmes, Walton | 32 min |
| Mar 3, 7:20 AM CST | Severe Thunderstorm Warning | TAE | Baker, Early, Miller, Mitchell | 40 min |
| Mar 3, 7:21 AM CST | Severe Thunderstorm Warning | TAE | Geneva, Houston | 39 min |
| Mar 3, 7:27 AM CST | Severe Thunderstorm Warning | TAE | Walton, Washington | 48 min |
| Mar 3, 7:29 AM CST | Tornado Warning | TAE | Decatur, Grady, Mitchell | 31 min |
| Mar 3, 7:48 AM CST | Severe Thunderstorm Warning | TAE | Bay, Walton, Washington | 27 min |
| Mar 3, 7:57 AM CST | Severe Thunderstorm Warning | TAE | Holmes, Jackson, Washington | 33 min |
| Mar 3, 8:13 AM CST | Tornado Warning | TAE | Ben Hill, Irwin, Tift | 32 min |
| Mar 3, 8:16 AM CST | Tornado Warning | TAE | Gadsden, Jefferson, Leon, Liberty | 44 min |
| Mar 3, 8:37 AM CST | Severe Thunderstorm Warning | JAX | Coffee | 38 min |
| Mar 3, 8:54 AM CST | Severe Thunderstorm Warning | TAE | Gadsden, Jefferson, Leon | 36 min |
| Mar 3, 8:57 AM CST | Tornado Warning | TAE | Gadsden, Leon, Liberty | 48 min |
| Mar 3, 8:59 AM CST | Tornado Warning | JAX | Coffee | 31 min |
| Mar 3, 9:12 AM CST | Severe Thunderstorm Warning | JAX | Bacon, Coffee, Jeff Davis | 33 min |
| Mar 3, 9:16 AM CST | Tornado Warning | TAE | Calhoun, Gadsden, Jackson, Liberty | 29 min |
| Mar 3, 9:31 AM CST | Severe Thunderstorm Warning | JAX | Appling, Bacon, Jeff Davis | 29 min |
| Mar 3, 9:36 AM CST | Tornado Warning | TAE | Brooks, Thomas | 24 min |
| Mar 3, 9:43 AM CST | Tornado Warning | TAE | Gadsden | 32 min |
| Mar 3, 9:48 AM CST | Severe Thunderstorm Warning | JAX | Bacon, Coffee, Jeff Davis | 42 min |
| Mar 3, 9:59 AM CST | Tornado Warning | TAE | Brooks, Lowndes | 31 min |
| Mar 3, 10:13 AM CST | Severe Thunderstorm Warning | TAE | Gadsden, Leon | 32 min |
| Mar 3, 10:28 AM CST | Severe Thunderstorm Warning | TAE | Gadsden, Leon | 32 min |
| Mar 3, 10:31 AM CST | Tornado Warning | TAE | Berrien, Brooks, Cook, Lanier, Lowndes | 29 min |
| Mar 3, 10:48 AM CST | Severe Thunderstorm Warning | TAE | Grady, Thomas | 27 min |
| Mar 3, 11:03 AM CST | Tornado Warning | JAX | Atkinson, Clinch, Ware | 42 min |
| Mar 3, 11:22 AM CST | Flash Flood Warning | TAE | Bay, Calhoun, Gadsden, Jackson, Liberty, Walton and 1 more | 4 hr |
| Mar 3, 11:23 AM CST | Tornado Warning | TAE | Brooks, Lowndes | 37 min |
| Mar 3, 11:34 AM CST | Flash Flood Warning | TAE | Baker, Decatur, Early, Miller, Seminole | 3 hr |
| Mar 3, 11:42 AM CST | Tornado Warning | JAX | Brantley, Pierce, Ware | 48 min |
| Mar 3, 11:45 AM CST | Severe Thunderstorm Warning | TAE | Berrien, Cook, Lanier, Lowndes | 30 min |
| Mar 3, 11:53 AM CST | Tornado Warning | TAE | Berrien, Cook, Lanier, Lowndes | 37 min |
| Mar 3, 11:55 AM CST | Severe Thunderstorm Warning | JAX | Wayne | 21 min |
| Mar 3, 12:13 PM CST | Tornado Warning | JAX | Brantley, Pierce, Wayne | 47 min |
| Mar 3, 12:17 PM CST | Tornado Warning | JAX | Atkinson, Clinch, Ware | 43 min |
| Mar 3, 12:28 PM CST | Severe Thunderstorm Warning | TAE | Berrien, Brooks, Lanier, Lowndes, Thomas | 62 min |
| Mar 3, 12:29 PM CST | Flash Flood Warning | TAE | Gadsden, Jackson | 3 hr |
| Mar 3, 12:34 PM CST | Flash Flood Warning | TAE | Berrien, Brooks, Cook, Decatur, Grady, Lanier and 2 more | 3 hr |
| Mar 3, 12:43 PM CST | Tornado Warning | JAX | Brantley, Glynn, Wayne | 25 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, 0.6 hours before the alert went out and 77 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
- 499 J/kg
- Mixed-layer CIN
- 0 J/kg
- Mixed-layer LCL
- 472 m above ground
- 0-6 km bulk shear
- 61 kt
- 0-1 km storm-relative helicity
- 257 m²/s²
- 0-3 km storm-relative helicity
- 283 m²/s²
- Significant tornado parameter
- 0.9
- Supercell composite
- 4.1
The text
As transmitted, in the capitals the NWS used until 2016.
617
WWUS20 KWNS 031234
SEL8
SPC WW 031234
ALZ000-FLZ000-GAZ000-CWZ000-031900-
URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 68
NWS STORM PREDICTION CENTER NORMAN OK
735 AM EST SAT MAR 3 2012
THE NWS STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF
EXTREME SOUTHEAST ALABAMA
THE CENTRAL AND EASTERN FLORIDA PANHANDLE
SOUTH CENTRAL AND SOUTHWEST GEORGIA
COASTAL WATERS
EFFECTIVE THIS SATURDAY MORNING AND AFTERNOON FROM 735 AM UNTIL
200 PM EST.
TORNADOES...HAIL TO 1.5 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 50 STATUTE
MILES NORTH AND SOUTH OF A LINE FROM 35 MILES WEST NORTHWEST OF
PANAMA CITY FLORIDA TO 75 MILES NORTHEAST OF VALDOSTA GEORGIA.
FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH
OUTLINE UPDATE (WOUS64 KWNS WOU8).
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...CONTINUE...WW 67...
DISCUSSION...PRE-FRONTAL STORMS HAVE BEEN GRADUALLY INCREASING IN
COVERAGE/INTENSITY ACROSS THE FL PANHANDLE AND SW GA...AND THIS
TREND WILL CONTINUE THROUGH THE MORNING AS SURFACE HEATING BEGINS TO
DESTABILIZE THE BOUNDARY LAYER. MLCAPE IS EXPECTED TO INCREASE TO
1000-1500 J/KG WITH DAYTIME HEATING...AND VERTICAL SHEAR WILL REMAIN
FAVORABLE FOR SUPERCELLS CAPABLE OF PRODUCING A FEW TORNADOES.
OTHERWISE...DAMAGING WINDS AND LARGE HAIL WILL BE POSSIBLE WITH THE
STRONGER STORMS THROUGH EARLY AFTERNOON.
AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 1.5 INCHES. EXTREME TURBULENCE AND SURFACE
WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
500. MEAN STORM MOTION VECTOR 24040.
...THOMPSONSPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 2, 7:18 PM CST | Mesoscale Discussion | SPC | Blount, Cullman, DeKalb, Fayette, Greene, Jackson and 12 more | 57 min |
| Mar 2, 10:07 PM CST | Mesoscale Discussion | SPC | Autauga, Bibb, Calhoun, Chambers, Cherokee, Chilton and 25 more | 113 min |
| Mar 2, 10:56 PM CST | Tornado Watch | SPC | Autauga, Baldwin, Barbour, Bibb, Bullock, Butler and 31 more | 6 hr |
| Mar 3, 4:47 AM CST | Mesoscale Discussion | SPC | Coffee, Covington, Dale, Geneva, Henry, Houston | 58 min |
| Mar 3, 9:12 AM CST | Mesoscale Discussion | SPC | Bay, Calhoun, Gadsden, Hamilton, Jefferson, Leon and 3 more | 93 min |
| Mar 3, 11:45 AM CST | Mesoscale Discussion | SPC | Alachua, Baker, Bradford, Clay, Columbia, Duval and 15 more | 60 min |
| Mar 3, 12:04 PM CST | Tornado Watch | SPC | Alachua, Baker, Bradford, Calhoun, Clay, Columbia and 17 more | 5 hr |
| Mar 3, 3:30 PM CST | Mesoscale Discussion | SPC | Baker, Columbia, Hamilton, Lafayette, Nassau, Suwannee and 2 more | 90 min |
| Mar 2, 7:15 PM CST | Mesoscale Discussion | SPC | Catoosa, Dade, Fannin, Gilmer, Murray, Rabun and 4 more | 90 min |
| Mar 2, 8:36 PM CST | Mesoscale Discussion | SPC | Baker, Calhoun, Colquitt, Cook, Decatur, Dougherty and 6 more | 54 min |
| Mar 2, 9:54 PM CST | Tornado Watch | SPC | Banks, Barrow, Bartow, Butts, Carroll, Catoosa and 61 more | 6 hr |
| Mar 2, 11:40 PM CST | Mesoscale Discussion | SPC | Banks, Barrow, Bartow, Carroll, Cherokee, Clarke and 30 more | 95 min |
| Mar 3, 2:58 AM CST | Mesoscale Discussion | SPC | Burke, Columbia, Glascock, Jefferson, Jenkins, Lincoln and 6 more | 92 min |
| Mar 3, 3:39 AM CST | Severe Thunderstorm Watch | SPC | Burke, Columbia, Lincoln, McDuffie, Richmond | 4 hr |
Nearby
Tornado Watches in Georgia, 2012Tornado Watches in Florida, 2012Tornado Watches in Alabama, 2012Every tornado watch in 2012
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.