Alert archive / Florida / Tornado Watches in 2005
Tornado Watch 458
The Storm Prediction Center issued this tornado watch at Jun 11, 2005, 4:10 AM CDT for 12 counties in Alabama; 45 counties in Florida; 22 counties in Georgia. It was in force for 12 hr.
The area
The outline as issued.
The facts
- Issued
- Jun 11, 2005, 4:10 AM CDT (09:10 UTC)
- Expired
- Jun 11, 2005, 4:00 PM CDT
- In force
- 12 hr
- Issued by
- the Storm Prediction Center
All 79 counties
Butler County, AL, Clarke County, AL, Coffee County, AL, Conecuh County, AL, Covington County, AL, Crenshaw County, AL, Dale County, AL, Escambia County, AL, Geneva County, AL, Henry County, AL, Houston County, AL, Monroe County, AL, Alachua County, FL, Baker County, FL, Bay County, FL, Bradford County, FL, Brevard County, FL, Calhoun County, FL, Citrus County, FL, Clay County, FL, Columbia County, FL, Dixie County, FL, Flagler County, FL, Franklin County, FL, Gadsden County, FL, Gilchrist County, FL, Gulf County, FL, Hamilton County, FL, Hernando County, FL, Hillsborough County, FL, Holmes County, FL, Jackson County, FL, Jefferson County, FL, Lafayette County, FL, Lake County, FL, Leon County, FL, Levy County, FL, Liberty County, FL, Madison County, FL, Marion County, FL, Okaloosa County, FL, Orange County, FL, Osceola County, FL, Pasco County, FL, Pinellas County, FL, Polk County, FL, Putnam County, FL, Santa Rosa County, FL, Seminole County, FL, Sumter County, FL, Suwannee County, FL, Taylor County, FL, Union County, FL, Volusia County, FL, Wakulla County, FL, Walton County, FL, Washington County, FL, Baker County, GA, Berrien County, GA, Brooks County, GA, Calhoun County, GA, Clay County, GA, Colquitt County, GA, Cook County, GA, Decatur County, GA, Dougherty County, GA, Early County, GA, Echols County, GA, Grady County, GA, Lanier County, GA, Lowndes County, GA, Miller County, GA, Mitchell County, GA, Randolph County, GA, Seminole County, GA, Terrell County, GA, Thomas County, GA, Tift County, GA, Worth County, GA
The radar
The Tallahassee radar (KTLH), 55 km from the middle of the area, began a volume at 09:11 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.
Warnings issued inside it
2 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 11, 4:37 AM CDT | Tornado Warning | MLB | Brevard | 26 min |
| Jun 11, 2:08 PM CDT | Tornado Warning | MOB | Santa Rosa | 26 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 00:00Z, 9.2 hours before the alert went out and 52 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
- 213 J/kg
- Mixed-layer CIN
- -19 J/kg
- Mixed-layer LCL
- 846 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- 125 m²/s²
- 0-3 km storm-relative helicity
- 141 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 1.3
The text
As transmitted, in the capitals the NWS used until 2016.
000
WWUS20 KWNS 110910
SEL8
SPC WW 110910
ALZ000-FLZ000-GAZ000-CWZ000-112100-
URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 458
NWS STORM PREDICTION CENTER NORMAN OK
510 AM EDT SAT JUN 11 2005
THE NWS STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF
SOUTHERN ALABAMA
NORTHERN AND CENTRAL FLORIDA
SOUTHERN GEORGIA
COASTAL WATERS
EFFECTIVE THIS SATURDAY MORNING AND AFTERNOON FROM 510 AM UNTIL
500 PM EDT.
TORNADOES...HAIL TO 0.5 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 135 STATUTE
MILES EAST AND WEST OF A LINE FROM 50 MILES SOUTH SOUTHWEST OF
ORLANDO FLORIDA TO 45 MILES NORTHWEST OF DOTHAN ALABAMA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE
UPDATE (WOUS64 KWNS WOU8).
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...THIS TORNADO WATCH REPLACES TORNADO
WATCH NUMBER 457. WATCH NUMBER 457 WILL NOT BE IN EFFECT AFTER 510
AM EDT.
DISCUSSION...ARLENE CONTINUES TO MOVE NWD AND WILL ARRIVE AT THE
COAST VCNTY AL/WRN FL PNHDL BORDER LATER THIS AFTERNOON. LOW-LEVEL
SHEAR PROFILES ARE ALREADY QUITE STRONG ALONG THE NWRN FL COAST SWD
INTO WRN FL AND WILL BECOME STRONGER AS THE CENTER OF ARLENE MOVES
ASHORE. SPIRAL RAINBANDS WITH EMBEDDED MINI-SUPERCELLS WILL BE
LIKELY WITH TORNADOES POSSIBLE...ESPECIALLY AS STRONGER INSTABILITY
DEVELOPS LATER THIS MORNING.
AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 0.5 INCH. EXTREME TURBULENCE AND SURFACE WIND
GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500.
MEAN STORM MOTION VECTOR 18030.
...RACY/HALES
275,0835 314,0881 314,0834 275,0792SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 11, 2:23 PM CDT | Mesoscale Discussion | SPC | Autauga, Barbour, Bullock, Butler, Coffee, Conecuh and 14 more | 97 min |
| Jun 10, 8:50 PM CDT | Mesoscale Discussion | SPC | Charlotte, Collier, Lee, Manatee, Monroe, Sarasota | 55 min |
| Jun 10, 9:05 PM CDT | Tornado Watch | SPC | Charlotte, Citrus, Collier, DeSoto, Glades, Hardee and 13 more | 10 hr |
Nearby
Tornado Watches in Florida, 2005Tornado Watches in Georgia, 2005Tornado Watches in Alabama, 2005Every tornado watch in 2005
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.