Alert archive / Florida / Tornado Warnings in 2009

Tornado Warning 2, NWS Tallahassee, FL

February 18, 2009Jackson County, Florida; Seminole County, Georgia

NWS Tallahassee, FL issued this tornado warning at Feb 18, 2009, 10:50 PM CST for Jackson County, Florida; Seminole County, Georgia. It was in force for 25 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
Feb 18, 2009, 10:50 PM CST (04:50 UTC)
Expired
Feb 18, 2009, 11:15 PM CST
In force
25 min
Issued by
NWS Tallahassee, FL
Area
Storm-based polygon

Counties Jackson County, FL, Seminole County, GA

The radar

The Tallahassee radar (KTLH), 74 km from the middle of the area, began a volume at 04:54 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
Feb 18, 9:14 PM CSTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Tallahassee Rgnl, FL (KTLH), launched 00:00Z, 4.8 hours before the alert went out and 76 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 00:00Z on 2009-02-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 177 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 00:00Z on 2009-02-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 371 square meters per square second.1939587897117Sfc1 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
177 J/kg
Mixed-layer CIN
-19 J/kg
Mixed-layer LCL
515 m above ground
0-6 km bulk shear
67 kt
0-1 km storm-relative helicity
371 m²/s²
0-3 km storm-relative helicity
426 m²/s²
Significant tornado parameter
0.4
Supercell composite
2.3

Open this sounding in Storm Lab

The text

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

000 
WFUS52 KTAE 190450
TORTAE
FLC063-GAC253-190515-
/O.NEW.KTAE.TO.W.0002.090219T0450Z-090219T0515Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE TALLAHASSEE FL
1050 PM CST WED FEB 18 2009

THE NATIONAL WEATHER SERVICE IN TALLAHASSEE HAS ISSUED A

* TORNADO WARNING FOR...
  EAST CENTRAL JACKSON COUNTY IN THE PANHANDLE OF FLORIDA...
  SOUTHERN SEMINOLE COUNTY IN SOUTHWEST GEORGIA...

* UNTIL 1115 PM CST/1215 AM EST/

* AT 1047 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  DEVELOPING TORNADO NEAR GREENWOOD...OR 7 MILES NORTHEAST OF
  MARIANNA...MOVING EAST AT 45 MPH.

* THE TORNADO WILL BE NEAR...
  TWO EGG...LOVEDALE AND DELLWOOD BY 1055 PM CST...
  HAYNES AND PARRAMORE BY 1100 PM CST...
  FAIRCHILD AND SEMINOLE STATE PARK BY 1205 AM EST...
  DESSER AND SEMINOLE STATE PARK BY 1210 AM EST...
  REYNOLDSVILLE BY 1215 AM EST...

IN ADDITION TO THE TORNADO...THIS STORM IS CAPABLE OF PRODUCING HAIL 
UP TO GOLF BALL SIZE AND DESTRUCTIVE STRAIGHT LINE WINDS IN EXCESS 
OF 70 MPH. 

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.

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 SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 400 AM CST
THURSDAY MORNING/500 AM EST THURSDAY MORNING/ FOR SOUTHEAST ALABAMA
AND NORTH FLORIDA AND SOUTHWESTERN GEORGIA.

LAT...LON 3099 8475 3098 8475 3082 8478 3078 8481
      3078 8483 3076 8486 3078 8518 3090 8524
TIME...MOT...LOC 0449Z 269DEG 41KT 3085 8513

$$

38-GODSEY

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 18, 6:51 PM CSTFire Weather WatchTAEBay, Calhoun, Dixie, Franklin, Gadsden, Gulf and 10 more13 hr
Feb 18, 9:11 PM CSTSevere Thunderstorm WarningTAEHolmes, Walton34 min
Feb 18, 9:42 PM CSTSevere Thunderstorm WarningTAEHolmes, Walton48 min
Feb 18, 9:45 PM CSTTornado WarningTAEHolmes, Walton30 min
Feb 18, 10:21 PM CSTSevere Thunderstorm WarningTAEHolmes, Jackson, Washington39 min
Feb 18, 10:45 PM CSTSevere Thunderstorm WarningTAEJackson45 min
Feb 19, 1:07 AM CSTLake Wind AdvisoryTAEBay, Calhoun, Dixie, Franklin, Gadsden, Gulf and 10 more16 hr
Feb 19, 3:08 AM CSTSevere Thunderstorm WarningTAEMadison22 min
Feb 19, 3:41 AM CSTSpecial Marine WarningTAE94 min
Feb 19, 4:11 AM CSTSpecial Marine WarningTAE94 min
Feb 19, 5:23 AM CSTSpecial Marine WarningTAE82 min
Feb 19, 8:08 AM CSTRed Flag WarningTAEBay, Calhoun, Dixie, Franklin, Gadsden, Gulf and 10 more10 hr
Feb 19, 8:08 AM CSTRed Flag WarningTAEBay, Calhoun, Dixie, Franklin, Gadsden, Gulf and 10 more34 hr
Feb 19, 1:49 PM CSTFire Weather WatchTAEBay, Calhoun, Dixie, Franklin, Gadsden, Gulf and 10 more38 hr
Feb 18, 11:22 PM CSTTornado WarningTAEDecatur23 min
Feb 18, 11:31 PM CSTSevere Thunderstorm WarningTAEColquitt, Decatur, Grady, Thomas44 min
Feb 18, 11:40 PM CSTTornado WarningTAEGrady35 min
Feb 18, 11:56 PM CSTTornado WarningTAEGrady, Thomas49 min
Feb 19, 12:20 AM CSTTornado WarningTAEBrooks40 min
Feb 19, 12:49 AM CSTTornado WarningTAELanier, Lowndes41 min
Feb 19, 1:19 AM CSTTornado WarningTAELanier, Lowndes26 min

Nearby

Tornado Warnings in Florida, 2009Tornado Warnings in Georgia, 2009Every tornado warning in 2009Tornadoes in 2009

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.