Alert archive / Florida / Tornado Watches in 2006
Tornado Watch 865
The Storm Prediction Center issued this tornado watch at Nov 16, 2006, 3:03 AM EST for 21 counties in Florida. It was in force for 8 hr.
The area
The outline as issued.
The facts
- Issued
- Nov 16, 2006, 3:03 AM EST (08:03 UTC)
- Expired
- Nov 16, 2006, 11:00 AM EST
- In force
- 8 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 1 in
- Strongest gust expected
- 60 kt
All 21 counties
Brevard County, FL, Charlotte County, FL, DeSoto County, FL, Hardee County, FL, Hernando County, FL, Highlands County, FL, Hillsborough County, FL, Indian River County, FL, Lake County, FL, Lee County, FL, Manatee County, FL, Okeechobee County, FL, Orange County, FL, Osceola County, FL, Pasco County, FL, Pinellas County, FL, Polk County, FL, Sarasota County, FL, Seminole County, FL, Sumter County, FL, Volusia County, FL
The radar
The Melbourne radar (KMLB), 83 km from the middle of the area, began a volume at 08:05 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
- 10%
- Ten or more severe wind reports
- 30%
- One or more gusts of 65 knots or more
- 10%
- Ten or more severe hail reports
- 20%
- One or more hailstones of 2 inches or more
- 10%
- Six or more combined severe hail and wind reports
- 70%
Discussions around it
SPC mesoscale discussions over the same counties from four hours before the watch to its end.
The nearest sounding before it
Tampa Bay, FL (KTBW), launched 00:00Z, 8.1 hours before the alert went out and 107 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
- 234 J/kg
- Mixed-layer CIN
- -62 J/kg
- Mixed-layer LCL
- 960 m above ground
- 0-6 km bulk shear
- 39 kt
- 0-1 km storm-relative helicity
- 128 m²/s²
- 0-3 km storm-relative helicity
- 169 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 0.3
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 15, 7:03 PM EST | Mesoscale Discussion | SPC | Alachua, Baker, Bradford, Clay, Columbia, Dixie and 16 more | 57 min |
| Nov 15, 7:08 PM EST | Tornado Watch | SPC | Alachua, Baker, Bradford, Clay, Columbia, Duval and 6 more | 8 hr |
| Nov 15, 9:32 PM EST | Mesoscale Discussion | SPC | Alachua, Brevard, Charlotte, Citrus, DeSoto, Flagler and 21 more | 58 min |
| Nov 15, 11:41 PM EST | Tornado Watch | SPC | Brevard, Charlotte, DeSoto, Flagler, Hardee, Hernando and 18 more | 3 hr |
| Nov 16, 12:32 AM EST | Mesoscale Discussion | SPC | Baker, Bradford, Clay, Columbia, Duval, Nassau and 2 more | 58 min |
| Nov 16, 2:35 AM EST | Mesoscale Discussion | SPC | Brevard, Charlotte, Citrus, DeSoto, Flagler, Hardee and 19 more | 55 min |
| Nov 16, 8:12 AM EST | Mesoscale Discussion | SPC | Brevard, Charlotte, DeSoto, Hardee, Highlands, Indian River and 9 more | 2 hr |
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.