Alert archive / Georgia / Tornado Watches in 2007
Tornado Watch 195
The Storm Prediction Center issued this tornado watch at Apr 26, 2007, 4:53 PM CDT for 4 states. It was in force for 5 hr.
The area
The outline as issued.
The facts
- Issued
- Apr 26, 2007, 4:53 PM CDT (21:53 UTC)
- Expired
- Apr 26, 2007, 10:00 PM CDT
- In force
- 5 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 1.5 in
- Strongest gust expected
- 60 kt
All 33 counties
DeKalb County, AL, Jackson County, AL, Marshall County, AL, Bartow County, GA, Catoosa County, GA, Chattooga County, GA, Cherokee County, GA, Cobb County, GA, Dade County, GA, Dawson County, GA, Fannin County, GA, Floyd County, GA, Forsyth County, GA, Gilmer County, GA, Gordon County, GA, Hall County, GA, Lumpkin County, GA, Murray County, GA, Paulding County, GA, Pickens County, GA, Polk County, GA, Towns County, GA, Union County, GA, Walker County, GA, White County, GA, Whitfield County, GA, Cherokee County, NC, Clay County, NC, Bradley County, TN, Franklin County, TN, Hamilton County, TN, Marion County, TN, Polk County, TN
The radar
The Northeast Alabama radar (KHTX), 76 km from the middle of the area, began a volume at 21:54 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
- 30%
- One or more EF2 to EF5 tornadoes
- 20%
- Ten or more severe wind reports
- 30%
- One or more gusts of 65 knots or more
- 5%
- Ten or more severe hail reports
- 50%
- One or more hailstones of 2 inches or more
- 20%
- Six or more combined severe hail and wind reports
- 70%
Warnings issued inside it
1 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 26, 5:57 PM CDT | Severe Thunderstorm Warning | FFC | Cherokee, Pickens | 33 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
Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 9.9 hours before the alert went out and 175 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
- 17 J/kg
- Mixed-layer CIN
- -55 J/kg
- Mixed-layer LCL
- 947 m above ground
- 0-6 km bulk shear
- 53 kt
- 0-1 km storm-relative helicity
- 158 m²/s²
- 0-3 km storm-relative helicity
- 170 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 25, 11:50 PM CDT | Mesoscale Discussion | SPC | Mobile, Washington | 85 min |
| Apr 26, 12:41 AM CDT | Tornado Watch | SPC | Baldwin, Choctaw, Clarke, Mobile, Washington | 7 hr |
| Apr 26, 4:46 AM CDT | Mesoscale Discussion | SPC | Baldwin, Choctaw, Clarke, Marengo, Mobile, Monroe and 1 more | 89 min |
| Apr 26, 7:12 AM CDT | Mesoscale Discussion | SPC | Baldwin, Clarke, Mobile, Monroe, Washington | 93 min |
| Apr 26, 2:12 PM CDT | Mesoscale Discussion | SPC | Barbour, Bullock, Chambers, Coffee, Covington, Crenshaw and 12 more | 63 min |
| Apr 26, 2:42 PM CDT | Tornado Watch | SPC | Barbour, Bullock, Coffee, Dale, Geneva, Henry and 3 more | 3 hr |
| Apr 26, 4:33 PM CDT | Mesoscale Discussion | SPC | Cherokee, DeKalb, Etowah, Jackson, Marshall | 57 min |
| Apr 26, 5:26 PM CDT | Mesoscale Discussion | SPC | Henry, Houston | 64 min |
| Apr 26, 2:07 PM CDT | Mesoscale Discussion | SPC | Bledsoe, Cannon, Clay, Cumberland, DeKalb, Fentress and 18 more | 53 min |
| Apr 26, 3:18 PM CDT | Tornado Watch | SPC | Anderson, Bledsoe, Blount, Campbell, Claiborne, Clay and 24 more | 7 hr |
| Apr 26, 6:57 PM CDT | Mesoscale Discussion | SPC | Anderson, Blount, Campbell, Claiborne, Cumberland, Grainger and 11 more | 93 min |
Nearby
Tornado Watches in Georgia, 2007Tornado Watches in Tennessee, 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; radar from the NEXRAD Level II archive.