Alert archive / Florida / Tornado Warnings in 2007

Tornado Warning 39, NWS Tallahassee, FL

September 21, 2007Holmes County, Florida; Geneva County, Alabama

NWS Tallahassee, FL issued this tornado warning at Sep 21, 2007, 5:26 PM CDT for Holmes County, Florida; Geneva County, Alabama. It was in force for 49 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 21, 2007, 5:26 PM CDT (22:26 UTC)
Expired
Sep 21, 2007, 6:15 PM CDT
In force
49 min
Issued by
NWS Tallahassee, FL
Area
Counties, with a storm outline in the text

Counties Geneva County, AL, Holmes County, FL

The radar

The Eglin Afb radar (KEVX), 56 km from the middle of the area, began a volume at 22:29 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 21, 4:58 PM CDTTornado WatchSPC7 hr

The nearest sounding before it

Tallahassee Rgnl, FL (KTLH), launched 12:00Z, 10.4 hours before the alert went out and 169 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 2007-09-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 399 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 2007-09-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 31 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
399 J/kg
Mixed-layer CIN
-15 J/kg
Mixed-layer LCL
507 m above ground
0-6 km bulk shear
22 kt
0-1 km storm-relative helicity
31 m²/s²
0-3 km storm-relative helicity
94 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.

000 
WFUS52 KTAE 212226
TORTAE
ALC061-FLC059-212315-
/O.NEW.KTAE.TO.W.0039.070921T2226Z-070921T2315Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE TALLAHASSEE FL
526 PM CDT FRI SEP 21 2007

THE NATIONAL WEATHER SERVICE IN TALLAHASSEE HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHERN HOLMES COUNTY IN THE PANHANDLE OF FLORIDA...    
  GENEVA COUNTY IN SOUTHEAST ALABAMA...
  THIS INCLUDES THE CITY OF GENEVA...

* UNTIL 615 PM CDT

* AT 524 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  DEVELOPING TORNADO 8 MILES SOUTHEAST OF GENEVA...MOVING NORTHWEST
  AT 20 MPH.

* THE TORNADO WILL BE NEAR...
  GENEVA BY 545 PM CDT...

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 MIDNIGHT CDT SATURDAY MORNING
FOR SOUTHEAST ALABAMA AND CENTRAL FLORIDA AND SOUTHWESTERN GEORGIA.

LAT...LON 3112 8604 3119 8580 3097 8572 3093 8587
TIME...MOT...LOC 2226Z 156DEG 17KT 3096 8580

$$

22-BARRY

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 20, 7:15 PM CDTSpecial Marine WarningTAE2 hr
Sep 20, 7:27 PM CDTSevere Thunderstorm WarningTAEDixie48 min
Sep 20, 9:09 PM CDTSpecial Marine WarningTAE66 min
Sep 20, 9:35 PM CDTSevere Thunderstorm WarningTAEFranklin40 min
Sep 20, 9:56 PM CDTTornado WarningTAEFranklin49 min
Sep 20, 10:18 PM CDTSpecial Marine WarningTAE117 min
Sep 21, 12:09 AM CDTSpecial Marine WarningTAE2 hr
Sep 21, 1:13 AM CDTSpecial Marine WarningTAE2 hr
Sep 21, 2:19 AM CDTSpecial Marine WarningTAE56 min
Sep 21, 5:06 AM CDTTornado WarningTAEFranklin39 min
Sep 21, 9:58 AM CDTCoastal Flood WarningTAEFranklin, Jefferson, Wakulla9 hr
Sep 21, 11:49 AM CDTFlood WatchTAEBay, Franklin, Gulf, Walton8 min
Sep 21, 11:57 AM CDTFlood WatchTAEBay, Calhoun, Franklin, Gulf, Holmes, Jackson and 2 more12 hr
Sep 21, 4:27 PM CDTSevere Thunderstorm WarningTAEWalton48 min
Sep 21, 4:56 PM CDTTornado WarningTAEHolmes, Washington49 min
Sep 21, 5:32 PM CDTSevere Thunderstorm WarningTAEWakulla43 min

Nearby

Tornado Warnings in Florida, 2007Tornado Warnings in Alabama, 2007Every tornado warning in 2007Tornadoes in 2007

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.