Alert archive / Florida / Tornado Watches in 2007
Tornado Watch 6
The Storm Prediction Center issued this tornado watch at Jan 5, 2007, 2:49 PM EST for 20 counties in Florida; 19 counties in Georgia. It was in force for 7 hr.
The area
The outline as issued.
The facts
- Issued
- Jan 5, 2007, 2:49 PM EST (19:49 UTC)
- Expired
- Jan 5, 2007, 9:50 PM EST
- In force
- 7 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 1 in
- Strongest gust expected
- 60 kt
All 39 counties
Alachua County, FL, Baker County, FL, Bradford County, FL, Clay County, FL, Columbia County, FL, Dixie County, FL, Duval County, FL, Flagler County, FL, Gilchrist County, FL, Hamilton County, FL, Lafayette County, FL, Levy County, FL, Madison County, FL, Marion County, FL, Nassau County, FL, Putnam County, FL, Saint Johns County, FL, Suwannee County, FL, Taylor County, FL, Union County, FL, Appling County, GA, Atkinson County, GA, Bacon County, GA, Berrien County, GA, Brantley County, GA, Brooks County, GA, Camden County, GA, Charlton County, GA, Clinch County, GA, Coffee County, GA, Cook County, GA, Echols County, GA, Glynn County, GA, Jeff Davis County, GA, Lanier County, GA, Lowndes County, GA, Pierce County, GA, Ware County, GA, Wayne 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
8 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 5, 4:11 PM EST | Severe Thunderstorm Warning | JAX | Coffee | 34 min |
| Jan 5, 4:37 PM EST | Severe Thunderstorm Warning | JAX | Bacon, Jeff Davis | 38 min |
| Jan 5, 4:56 PM EST | Severe Thunderstorm Warning | JAX | Ware | 34 min |
| Jan 5, 5:03 PM EST | Tornado Warning | JAX | Ware | 27 min |
| Jan 5, 5:58 PM EST | Severe Thunderstorm Warning | JAX | Brantley | 32 min |
| Jan 5, 6:12 PM EST | Severe Thunderstorm Warning | JAX | Hamilton, Suwannee | 48 min |
| Jan 5, 6:44 PM EST | Severe Thunderstorm Warning | JAX | Columbia | 46 min |
| Jan 5, 7:28 PM EST | Severe Thunderstorm Warning | JAX | Union | 32 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, 7.8 hours before the alert went out and 166 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
- 501 J/kg
- Mixed-layer CIN
- -10 J/kg
- Mixed-layer LCL
- 468 m above ground
- 0-6 km bulk shear
- 47 kt
- 0-1 km storm-relative helicity
- 196 m²/s²
- 0-3 km storm-relative helicity
- 185 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 3.9
The text
As transmitted, in the capitals the NWS used until 2016.
000
WWUS20 KWNS 051954
SEL6
SPC WW 051954
FLZ000-GAZ000-CWZ000-060400-
URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 6
NWS STORM PREDICTION CENTER NORMAN OK
250 PM EST FRI JAN 5 2007
THE NWS STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF
NORTHERN FLORIDA
SOUTHEAST GEORGIA
COASTAL WATERS
EFFECTIVE THIS FRIDAY AFTERNOON AND EVENING FROM 250 PM UNTIL
1100 PM EST.
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 75 STATUTE
MILES EAST AND WEST OF A LINE FROM 45 MILES NORTH NORTHWEST OF
BRUNSWICK GEORGIA TO 20 MILES SOUTHWEST OF CROSS CITY FLORIDA.
FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH
OUTLINE UPDATE (WOUS64 KWNS WOU6).
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 4...WW 5...
DISCUSSION...TSTMS ARE EXPECTED TO CONTINUE TO SPREAD NEWD ACROSS
PARTS OF SRN GA AND NRN FL THROUGH THIS EVENING AS 70 KT MID LEVEL
JET AND EJECTING SHORT WAVE TROUGH MOVE ACROSS THE AREA. MOIST AND
UNSTABLE AIR MASS WILL FUEL STRONG UPDRAFTS WHILE LOW LEVEL SHEAR
AND HELICITY SUPPORT CELL ROTATION AND PERSISTENCE. BOWING LINE
SEGMENTS AND ISOLATED SUPERCELLS WILL POSE A THREAT OF DAMAGING
WINDS AND TORNADOES.
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 500.
MEAN STORM MOTION VECTOR 22035.
...CARBIN/IMYSPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 5, 1:47 AM EST | Mesoscale Discussion | SPC | Bay, Calhoun, Escambia, Gulf, Holmes, Jackson and 4 more | 28 min |
| Jan 5, 2:15 AM EST | Tornado Watch | SPC | Bay, Calhoun, Escambia, Gulf, Holmes, Jackson and 4 more | 6 hr |
| Jan 5, 4:13 AM EST | Mesoscale Discussion | SPC | Bay, Calhoun, Escambia, Gulf, Holmes, Jackson and 5 more | 62 min |
| Jan 5, 6:46 AM EST | Mesoscale Discussion | SPC | Bay, Calhoun, Escambia, Franklin, Gadsden, Gulf and 11 more | 59 min |
| Jan 5, 8:21 AM EST | Tornado Watch | SPC | Bay, Calhoun, Escambia, Franklin, Gadsden, Gulf and 10 more | 8 hr |
| Jan 5, 10:02 AM EST | Mesoscale Discussion | SPC | Bay, Calhoun, Escambia, Franklin, Gadsden, Gulf and 10 more | 118 min |
| Jan 5, 12:31 PM EST | Mesoscale Discussion | SPC | Bay, Calhoun, Franklin, Gadsden, Gulf, Jackson and 4 more | 119 min |
| Jan 5, 2:16 PM EST | Mesoscale Discussion | SPC | Alachua, Baker, Bradford, Clay, Columbia, Dixie and 17 more | 119 min |
| Jan 5, 6:35 PM EST | Mesoscale Discussion | SPC | Alachua, Baker, Bradford, Clay, Columbia, Duval and 4 more | 85 min |
| Jan 5, 12:06 PM EST | Mesoscale Discussion | SPC | Banks, Elbert, Forsyth, Franklin, Habersham, Hall and 6 more | |
| Jan 5, 12:41 PM EST | Tornado Watch | SPC | Burke, Columbia, Elbert, Franklin, Habersham, Hart and 5 more | 8 hr |
| Jan 5, 3:04 PM EST | Mesoscale Discussion | SPC | Burke, Columbia, Glascock, Jefferson, Lincoln, McDuffie and 3 more | 86 min |
| Jan 5, 4:26 PM EST | Mesoscale Discussion | SPC | Appling, Bryan, Bulloch, Candler, Chatham, Effingham and 13 more | 34 min |
| Jan 5, 4:35 PM EST | Tornado Watch | SPC | Bryan, Bulloch, Candler, Chatham, Effingham, Emanuel and 11 more | 7 hr |
Nearby
Tornado Watches in Florida, 2007Tornado Watches in Georgia, 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.