Alert archive / Florida / Tornado Warnings in 2007

Tornado Warning 37, NWS Tallahassee, FL

September 21, 2007Franklin County, Florida

NWS Tallahassee, FL issued this tornado warning at Sep 21, 2007, 6:06 AM EDT for Franklin County, Florida. It was in force for 39 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, 6:06 AM EDT (10:06 UTC)
Expired: Sep 21, 2007, 6:45 AM EDT
In force: 39 min
Issued by: NWS Tallahassee, FL
Area: Counties, with a storm outline in the text

County Franklin County, FL

The radar

The Tallahassee radar (KTLH), 90 km from the middle of the area, began a volume at 10:05 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 nearest sounding before it

Tallahassee Rgnl, FL (KTLH), launched 00:00Z, 10.1 hours before the alert went out and 91 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 547 J/kg
Mixed-layer CIN: -26 J/kg
Mixed-layer LCL: 577 m above ground
0-6 km bulk shear: 13 kt
0-1 km storm-relative helicity: 28 m²/s²
0-3 km storm-relative helicity: 78 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

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

000 
WFUS52 KTAE 211008
TORTAE
FLC037-211045-
/O.NEW.KTAE.TO.W.0037.070921T1006Z-070921T1045Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE TALLAHASSEE FL
606 AM EDT FRI SEP 21 2007

THE NATIONAL WEATHER SERVICE IN TALLAHASSEE HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHWEST FRANKLIN COUNTY IN FLORIDA...
  THIS INCLUDES THE CITY OF APALACHICOLA...

* UNTIL 645 AM EDT/545 AM CDT/

* AT 605 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  DEVELOPING TORNADO 10 MILES EAST OF APALACHICOLA...MOVING NORTHWEST
  AT 15 MPH.

* THE TORNADO WILL BE NEAR...
  APALACHICOLA BY 625 AM EDT...

WHEN A TORNADO WARNING IS ISSUED BASED ON DOPPLER RADAR...IT MEANS
THAT STRONG ROTATION HAS BEEN DETECTED IN THE STORM. A TORNADO MAY
ALREADY BE ON THE GROUND...OR IS EXPECTED TO DEVELOP SHORTLY. IF YOU
ARE IN THE PATH OF THIS DANGEROUS STORM...MOVE INDOORS AND TO THE
LOWEST LEVEL OF THE BUILDING. STAY AWAY FROM WINDOWS. IF DRIVING...DO
NOT SEEK SHELTER UNDER A HIGHWAY OVERPASS.

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 2967 8489 2972 8485 2974 8493 2971 8498
      2975 8506 2986 8500 2990 8486 2978 8474
      2971 8484 2970 8483 2977 8472 2974 8469
      2964 8486
TIME...MOT...LOC 1006Z 122DEG 17KT 2972 8480

$$

14-MROCZKA

The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 20, 8:15 PM EDT	Special Marine Warning	TAE		2 hr
Sep 20, 8:27 PM EDT	Severe Thunderstorm Warning	TAE	Dixie	48 min
Sep 20, 10:09 PM EDT	Special Marine Warning	TAE		66 min
Sep 20, 10:35 PM EDT	Severe Thunderstorm Warning	TAE	Franklin	40 min
Sep 20, 10:56 PM EDT	Tornado Warning	TAE	Franklin	49 min
Sep 20, 11:18 PM EDT	Special Marine Warning	TAE		117 min
Sep 21, 1:09 AM EDT	Special Marine Warning	TAE		2 hr
Sep 21, 2:13 AM EDT	Special Marine Warning	TAE		2 hr
Sep 21, 3:19 AM EDT	Special Marine Warning	TAE		56 min
Sep 21, 10:58 AM EDT	Coastal Flood Warning	TAE	Franklin, Jefferson, Wakulla	9 hr
Sep 21, 12:49 PM EDT	Flood Watch	TAE	Bay, Franklin, Gulf, Walton	8 min
Sep 21, 12:57 PM EDT	Flood Watch	TAE	Bay, Calhoun, Franklin, Gulf, Holmes, Jackson and 2 more	12 hr
Sep 21, 5:27 PM EDT	Severe Thunderstorm Warning	TAE	Walton	48 min
Sep 21, 5:56 PM EDT	Tornado Warning	TAE	Holmes, Washington	49 min
Sep 21, 6:26 PM EDT	Tornado Warning	TAE	Holmes	49 min
Sep 21, 6:32 PM EDT	Severe Thunderstorm Warning	TAE	Wakulla	43 min

Nearby

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