Alert archive / Florida / Tornado Warnings in 2011

Tornado Warning 15, NWS Tallahassee, FL

March 28, 2011Dixie County, Florida

NWS Tallahassee, FL issued this tornado warning at Mar 28, 2011, 2:32 AM EDT for Dixie County, Florida. It was in force for 28 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: Mar 28, 2011, 2:32 AM EDT (06:32 UTC)
Expired: Mar 28, 2011, 3:00 AM EDT
In force: 28 min
Issued by: NWS Tallahassee, FL
Area: Storm-based polygon

County Dixie County, FL

The radar

The Tallahassee radar (KTLH), 157 km from the middle of the area, began a volume at 06:34 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, 6.5 hours before the alert went out and 156 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: 1716 J/kg
Mixed-layer CIN: -11 J/kg
Mixed-layer LCL: 717 m above ground
0-6 km bulk shear: 57 kt
0-1 km storm-relative helicity: 71 m²/s²
0-3 km storm-relative helicity: 137 m²/s²
Significant tornado parameter: 1.1
Supercell composite: 4.1

Open this sounding in Storm Lab

The text

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

315 
WFUS52 KTAE 280632
TORTAE
FLC029-280700-
/O.NEW.KTAE.TO.W.0015.110328T0632Z-110328T0700Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE TALLAHASSEE FL
232 AM EDT MON MAR 28 2011

THE NATIONAL WEATHER SERVICE IN TALLAHASSEE HAS ISSUED A

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

* UNTIL 300 AM EDT

* AT 228 AM EDT...A DEVELOPING TORNADO HAS BEEN DETECTED BY THE
  NATIONAL WEATHER SERVICE NEAR SHIRED ISLAND...OR 24 MILES WEST     
  OF CHIEFLAND...MOVING EAST AT 45 MPH.

* THE TORNADO WILL OTHERWISE REMAIN OVER MAINLY RURAL AREAS OF THE
  INDICATED COUNTY.

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.

&&

LAT...LON 2934 8318 2937 8321 2940 8322 2943 8326
      2946 8328 2955 8313 2952 8298 2933 8308
      2933 8309
TIME...MOT...LOC 0632Z 249DEG 39KT 2942 8320

$$

17-GOULD

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 28, 2:25 AM EDT	Special Marine Warning	TAE		80 min
Mar 28, 3:41 AM EDT	Severe Thunderstorm Warning	TAE	Taylor	49 min
Mar 28, 4:39 AM EDT	Dense Fog Advisory	TAE	Calhoun, Gadsden, Jackson, Leon, Wakulla, Washington	4 hr
Mar 28, 5:47 PM EDT	Special Weather Statement	TAE	Liberty	43 min
Mar 28, 5:49 PM EDT	Severe Thunderstorm Warning	TAE	Calhoun, Gadsden, Liberty	41 min
Mar 28, 6:26 PM EDT	Severe Thunderstorm Warning	TAE	Gadsden	28 min
Mar 28, 7:02 PM EDT	Special Weather Statement	TAE	Franklin	28 min

Nearby

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