Alert archive / Florida / Tornado Warnings in 2011

Tornado Warning 41, NWS Tallahassee, FL

September 4, 2011Taylor County, Florida

NWS Tallahassee, FL issued this tornado warning at Sep 4, 2011, 5:03 PM EDT for Taylor County, Florida. It was in force for 27 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Sep 4, 2011, 5:03 PM EDT (21:03 UTC)
Expired
Sep 4, 2011, 5:30 PM EDT
In force
27 min
Issued by
NWS Tallahassee, FL
Area
Storm-based polygon

County Taylor County, FL

The radar

The Tallahassee radar (KTLH), 51 km from the middle of the area, began a volume at 21:04 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.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Sep 4, 12:41 PM EDTTornado WatchSPC10 hr

The nearest sounding before it

Tallahassee Rgnl, FL (KTLH), launched 12:00Z, 9.1 hours before the alert went out and 49 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.

Skew-T log-pSkew-T log-p diagram, Tallahassee Rgnl, FL at 12:00Z on 2011-09-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1223 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Tallahassee Rgnl, FL at 12:00Z on 2011-09-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 95 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
1223 J/kg
Mixed-layer CIN
-10 J/kg
Mixed-layer LCL
468 m above ground
0-6 km bulk shear
19 kt
0-1 km storm-relative helicity
95 m²/s²
0-3 km storm-relative helicity
179 m²/s²
Significant tornado parameter
0.0
Supercell composite
4.3

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

971 
WFUS52 KTAE 042103
TORTAE
FLC123-042130-
/O.NEW.KTAE.TO.W.0041.110904T2103Z-110904T2130Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE TALLAHASSEE FL
503 PM EDT SUN SEP 4 2011

THE NATIONAL WEATHER SERVICE IN TALLAHASSEE HAS ISSUED A

* TORNADO WARNING FOR...
  WEST CENTRAL TAYLOR COUNTY IN FLORIDA...

* UNTIL 530 PM EDT

* AT 459 PM EDT...A DEVELOPING TORNADO HAS BEEN DETECTED BY THE
  NATIONAL WEATHER SERVICE 7 MILES SOUTH OF BUCKHORN...MOVING
  NORTHEAST AT 25 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  SCANLON...ECONFINA...RIVERSIDE AND CABBAGE GROVE

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! LEAVE MOBILE HOMES AND VEHICLES FOR SAFER STRUCTURES.
MOVE TO A HALLWAY OR CLOSET ON THE LOWEST FLOOR AWAY FROM WINDOWS AND
OUTSIDE WALLS.

A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. IF A TORNADO
IS SPOTTED...ACT QUICKLY AND MOVE TO A PLACE OF SAFETY IN A STURDY
STRUCTURE...SUCH AS A SMALL INTERIOR ROOM.

&&

LAT...LON 3002 8393 3008 8400 3011 8398 3019 8395
      3020 8392 3025 8392 3019 8372 3000 8386
TIME...MOT...LOC 2103Z 211DEG 20KT 3006 8395

$$

42-DVD
1 follow-up statement
909 
WWUS52 KTAE 042125
SVSTAE

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TALLAHASSEE FL
525 PM EDT SUN SEP 4 2011

FLC123-042135-
/O.EXP.KTAE.TO.W.0041.000000T0000Z-110904T2130Z/
TAYLOR FL-
525 PM EDT SUN SEP 4 2011

...THE TORNADO WARNING FOR WEST CENTRAL TAYLOR COUNTY WILL EXPIRE AT
530 PM EDT...

ROTATION WITH THE STORM HAS WEAKENED.

RELAY REPORTS OF SEVERE WEATHER TO THE NATIONAL WEATHER SERVICE IN
TALLAHASSEE AT (8 5 0) 9 4 2 8 8 3 3. OR...YOU MAY CONTACT THE
NEAREST LAW ENFORCEMENT AGENCY OR YOUR COUNTY EMERGENCY MANAGEMENT.
THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 1100 PM EDT SUNDAY EVENING 
FOR SOUTHEAST ALABAMA AND PARTS OF NORTHERN FLORIDA AND SOUTHWESTERN 
GEORGIA.

LAT...LON 3002 8393 3008 8400 3011 8398 3019 8395
      3020 8392 3025 8392 3019 8372 3000 8386
TIME...MOT...LOC 2125Z 211DEG 20KT 3016 8388

$$

42-DVD

The office that day

Everything else NWS Tallahassee, FL issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Sep 3, 10:47 PM EDTSpecial Marine WarningTAE58 min
Sep 4, 4:13 AM EDTFlash Flood WatchTAEBay, Calhoun, Franklin, Gadsden, Gulf, Holmes and 5 more35 hr
Sep 4, 6:11 AM EDTSevere Thunderstorm WarningTAEWalton49 min
Sep 4, 6:45 AM EDTSpecial Weather StatementTAEWashington30 min
Sep 4, 9:13 AM EDTSpecial Marine WarningTAE32 min
Sep 4, 9:40 AM EDTSpecial Marine WarningTAE50 min
Sep 4, 10:59 AM EDTTornado WarningTAEWalton31 min
Sep 4, 11:20 AM EDTTornado WarningTAEBay, Washington40 min
Sep 4, 12:40 PM EDTTornado WarningTAEWashington25 min
Sep 4, 2:37 PM EDTSpecial Marine WarningTAE38 min
Sep 4, 3:07 PM EDTSpecial Weather StatementTAEWakulla23 min
Sep 4, 3:13 PM EDTSpecial Marine WarningTAE47 min
Sep 4, 3:27 PM EDTSpecial Weather StatementTAEFranklin48 min
Sep 4, 3:32 PM EDTCoastal Flood WatchTAEBay, Dixie, Franklin, Gulf, Jefferson, Taylor and 2 more25 hr
Sep 4, 3:36 PM EDTSpecial Weather StatementTAEGadsden, Leon, Wakulla39 min
Sep 4, 3:43 PM EDTSpecial Marine WarningTAE47 min
Sep 4, 4:12 PM EDTSpecial Weather StatementTAEJefferson48 min
Sep 4, 4:49 PM EDTSpecial Marine WarningTAE41 min
Sep 4, 5:29 PM EDTSpecial Marine WarningTAE61 min
Sep 4, 5:46 PM EDTSpecial Marine WarningTAE44 min
Sep 4, 5:58 PM EDTSpecial Marine WarningTAE47 min
Sep 4, 7:01 PM EDTSpecial Marine WarningTAE44 min
Sep 4, 7:44 PM EDTSpecial Marine WarningTAE61 min
Sep 4, 7:48 PM EDTSpecial Marine WarningTAE27 min

Nearby

Tornado Warnings in Florida, 2011Every tornado warning in 2011Tornadoes in 2011

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.