Alert archive / Florida / Tornado Warnings in 2011

Tornado Warning 45, NWS Tallahassee, FL

October 18, 2011Wakulla County, Florida

NWS Tallahassee, FL issued this tornado warning at Oct 18, 2011, 5:28 PM EDT for Wakulla County, Florida. It was in force for 32 min. 2 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Oct 18, 2011, 5:28 PM EDT (21:28 UTC)
Expired
Oct 18, 2011, 6:00 PM EDT
In force
32 min
Issued by
NWS Tallahassee, FL
Area
Storm-based polygon

County Wakulla County, FL

The radar

The Tallahassee radar (KTLH), 39 km from the middle of the area, began a volume at 21:31 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 was reported inside it

TimeReportWhereRemark
Oct 18, 5:40 PM EDTTSTM WND GST 473 Ssw Wakulla Beach, FLCOMPS AUTOMATED GAGE AT SHELL POINT MEASURED 47 MPH GUST.
Oct 18, 5:43 PM EDTTSTM WND DMG3 Nw Wakulla Beach, FLA FEW TREES DOWN NORTH OF SHELL POINT.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Tallahassee Rgnl, FL (KTLH), launched 12:00Z, 9.5 hours before the alert went out and 39 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 2011-10-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 415 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 2011-10-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 51 square meters per square second.19395878Sfc1 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
415 J/kg
Mixed-layer CIN
-10 J/kg
Mixed-layer LCL
580 m above ground
0-6 km bulk shear
35 kt
0-1 km storm-relative helicity
51 m²/s²
0-3 km storm-relative helicity
111 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.6

Open this sounding in Storm Lab

The text

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

274 
WFUS52 KTAE 182128
TORTAE
FLC129-182200-
/O.NEW.KTAE.TO.W.0045.111018T2128Z-111018T2200Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE TALLAHASSEE FL
528 PM EDT TUE OCT 18 2011

THE NATIONAL WEATHER SERVICE IN TALLAHASSEE HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHERN WAKULLA COUNTY IN FLORIDA...

* UNTIL 600 PM EDT

* AT 525 PM EDT...A DEVELOPING TORNADO HAS BEEN DETECTED BY THE
  NATIONAL WEATHER SERVICE 14 MILES SOUTHWEST OF SAINT MARKS...OR
  NEAR PANACEA-WAKULLA AIRPORT...MOVING NORTH AT 25 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO SHELL
  POINT...LIVEOAK ISLAND...SPRING CREEK...WAKULLA BEACH...PORT
  LEON...HYDE PARK AND PLUM ORCHARD.

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.

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.

&&

LAT...LON 2998 8444 3018 8432 3016 8408 3008 8408
      3008 8413 3006 8416 3008 8419 3007 8426
      3005 8427 3005 8430 3000 8435 2998 8433
      2996 8434
TIME...MOT...LOC 2128Z 201DEG 22KT 3002 8434

$$

38-GODSEY
1 follow-up statement
620 
WWUS52 KTAE 182141
SVSTAE

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TALLAHASSEE FL
541 PM EDT TUE OCT 18 2011

FLC129-182200-
/O.CON.KTAE.TO.W.0045.000000T0000Z-111018T2200Z/
WAKULLA FL-
541 PM EDT TUE OCT 18 2011

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 600 PM EDT FOR
SOUTHERN WAKULLA COUNTY...

AT 537 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A TORNADO.  THIS TORNADO WAS LOCATED NEAR SHELL POINT...
MOVING NORTHEAST AT 25 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO WAKULLA
BEACH...PORT LEON...AND SAINT MARKS

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A
WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS
AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN
INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO
COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS.

IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
SUBSTANTIAL SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE
NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

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.

&&

LAT...LON 3003 8441 3018 8432 3016 8408 3008 8408
      3008 8413 3006 8416 3008 8419 3007 8426
      3005 8427 3005 8430 3001 8434
TIME...MOT...LOC 2141Z 203DEG 21KT 3008 8431

$$

38-GODSEY

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 18, 2:51 AM EDTRip Current StatementTAEBay, Franklin, Gulf, Walton26 hr
Oct 18, 4:58 AM EDTFire Weather WatchTAEBay, Calhoun, Holmes, Jackson, Walton, Washington24 hr
Oct 18, 2:59 PM EDTAreal Flood AdvisoryTAEFranklin2 hr
Oct 18, 3:15 PM EDTSpecial Marine WarningTAE2 hr
Oct 18, 4:26 PM EDTGale WarningTAE23 hr
Oct 18, 4:54 PM EDTSevere Thunderstorm WarningTAEFranklin36 min
Oct 18, 5:10 PM EDTSpecial Marine WarningTAE2 hr
Oct 18, 5:17 PM EDTSevere Thunderstorm WarningTAEWakulla43 min
Oct 18, 6:02 PM EDTSpecial Weather StatementTAELeon43 min
Oct 18, 7:12 PM EDTSpecial Marine WarningTAE63 min
Oct 18, 7:37 PM EDTSpecial Weather StatementTAETaylor38 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.