Alert archive / Florida / Tornado Watches in 2006
Tornado Watch 842
The Storm Prediction Center issued this tornado watch at Oct 27, 2006, 11:46 AM CDT for 12 counties in Florida. It was in force for 6 hr.
The area
The outline as issued.
The facts
- Issued
- Oct 27, 2006, 11:46 AM CDT (16:46 UTC)
- Expired
- Oct 27, 2006, 6:00 PM CDT
- In force
- 6 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 0.5 in
- Strongest gust expected
- 60 kt
Counties Bay County, FL, Calhoun County, FL, Franklin County, FL, Gadsden County, FL, Gulf County, FL, Holmes County, FL, Jefferson County, FL, Leon County, FL, Liberty County, FL, Wakulla County, FL, Walton County, FL, Washington County, FL
The radar
The Eglin Afb radar (KEVX), 51 km from the middle of the area, began a volume at 16:47 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
- 20%
- 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
- 50%
Warnings issued inside it
4 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 27, 12:28 PM CDT | Tornado Warning | TAE | Walton | 32 min |
| Oct 27, 2:31 PM CDT | Tornado Warning | TAE | Bay | 29 min |
| Oct 27, 2:52 PM CDT | Tornado Warning | TAE | Bay, Gulf | 23 min |
| Oct 27, 3:12 PM CDT | Tornado Warning | TAE | Gulf | 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
Tallahassee Rgnl, FL (KTLH), launched 12:00Z, 4.8 hours before the alert went out and 207 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
- 18 J/kg
- Mixed-layer CIN
- -34 J/kg
- Mixed-layer LCL
- 664 m above ground
- 0-6 km bulk shear
- 52 kt
- 0-1 km storm-relative helicity
- 270 m²/s²
- 0-3 km storm-relative helicity
- 306 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 |
|---|---|---|---|---|
| Oct 27, 6:34 AM CDT | Tornado Watch | SPC | Baldwin, Clarke, Mobile, Washington | 7 hr |
| Oct 27, 9:14 AM CDT | Mesoscale Discussion | SPC | Baldwin, Escambia, Mobile | 2 hr |
| Oct 27, 2:20 PM CDT | Mesoscale Discussion | SPC | Cullman, Fayette, Greene, Lauderdale, Lawrence, Limestone and 5 more | 85 min |
| Oct 27, 2:53 PM CDT | Mesoscale Discussion | SPC | Bay, Calhoun, Franklin, Gadsden, Gulf, Holmes and 4 more | 2 hr |
| Oct 27, 5:35 PM CDT | Mesoscale Discussion | SPC | Alachua, Baker, Bay, Bradford, Calhoun, Clay and 25 more | 25 min |
| Oct 27, 6:43 PM CDT | Mesoscale Discussion | SPC | Alachua, Baker, Columbia, Dixie, Gilchrist, Hamilton and 6 more | 92 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.