Alert archive / Georgia / Tornado Watches in 2007
Tornado Watch 732
The Storm Prediction Center issued this tornado watch at Oct 23, 2007, 3:36 AM EDT for 12 counties in Georgia. It was in force for 4 hr.
The area
The outline as issued.
The facts
- Issued
- Oct 23, 2007, 3:36 AM EDT (07:36 UTC)
- Expired
- Oct 23, 2007, 7:24 AM EDT
- In force
- 4 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 1 in
- Strongest gust expected
- 60 kt
Counties Bartow County, GA, Carroll County, GA, Coweta County, GA, Douglas County, GA, Floyd County, GA, Haralson County, GA, Harris County, GA, Heard County, GA, Meriwether County, GA, Paulding County, GA, Polk County, GA, Troup County, GA
The radar
The Atlanta radar (KFFC), 63 km from the middle of the area, began a volume at 07:37 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
- 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
- 10%
- Ten or more severe hail reports
- 5%
- One or more hailstones of 2 inches or more
- 5%
- Six or more combined severe hail and wind reports
- 40%
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 00:00Z, 7.6 hours before the alert went out and 68 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
- 245 J/kg
- Mixed-layer CIN
- -19 J/kg
- Mixed-layer LCL
- 624 m above ground
- 0-6 km bulk shear
- 18 kt
- 0-1 km storm-relative helicity
- 128 m²/s²
- 0-3 km storm-relative helicity
- 233 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 0.7
The text
As transmitted, in the capitals the NWS used until 2016.
000
WWUS20 KWNS 230734
SEL2
SPC WW 230734
GAZ000-231300-
URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 732
NWS STORM PREDICTION CENTER NORMAN OK
330 AM EDT TUE OCT 23 2007
THE NWS STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF
FAR NORTHWEST AND WEST CENTRAL GEORGIA
EFFECTIVE THIS TUESDAY MORNING FROM 330 AM UNTIL 900 AM EDT.
TORNADOES...HAIL TO 1 INCH IN DIAMETER...THUNDERSTORM WIND GUSTS
TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.
THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 25 STATUTE
MILES EAST AND WEST OF A LINE FROM 5 MILES NORTH NORTHEAST OF
ROME GEORGIA TO 30 MILES SOUTH SOUTHEAST OF LA GRANGE GEORGIA.
FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH
OUTLINE UPDATE (WOUS64 KWNS WOU2).
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 731...
DISCUSSION...QUASI-LINEAR MCS WILL CONTINUE NEWD FOR SVRL MORE HOURS
WITH ATTENDANT SVR THREAT REACHING INTO WRN GA BEFORE DIMINISHING AS
IT INGESTS MORE STABLE AIR OVER CENTRAL GA. ISOLATED TORNADOES AND
WIND DAMAGE MAY ACCOMPANY THE MORE INTENSE ROTATIONAL COUPLETS WITH
THIS ACTIVITY.
AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 1 INCH. EXTREME TURBULENCE AND SURFACE WIND
GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 400.
MEAN STORM MOTION VECTOR 22540.
...EVANSSPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 23, 3:15 AM EDT | Mesoscale Discussion | SPC | Carroll, Chattahoochee, Coweta, Haralson, Harris, Heard and 6 more | 90 min |
| Oct 23, 5:24 AM EDT | Mesoscale Discussion | SPC | Bartow, Carroll, Chattahoochee, Chattooga, Cherokee, Clayton and 20 more | 96 min |
| Oct 23, 2:45 PM EDT | Mesoscale Discussion | SPC | Banks, Barrow, Bartow, Butts, Carroll, Chattahoochee and 61 more | 60 min |
Nearby
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.