Alert archive / Florida / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 13, NWS Tallahassee, FL

January 26, 2012Leon County, Florida

NWS Tallahassee, FL issued this severe thunderstorm warning at Jan 26, 2012, 7:26 PM EST for Leon County, Florida. It was in force for 34 min. 1 report 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: Jan 26, 2012, 7:26 PM EST (00:26 UTC)
Expired: Jan 26, 2012, 8:00 PM EST
In force: 34 min
Issued by: NWS Tallahassee, FL
Area: Storm-based polygon

County Leon County, FL

The radar

The Tallahassee radar (KTLH), 4 km from the middle of the area, began a volume at 00:27 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

Time	Report	Where	Remark
Jan 26, 7:43 PM EST	TSTM WND DMG	3 E Tallahassee, FL	POSSIBLE TORNADO. POWER POLE FELL ONTO HOUSE ON VOGUE DR.

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

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jan 26, 4:30 PM EST	Tornado Watch	SPC	6 hr

The nearest sounding before it

Tallahassee Rgnl, FL (KTLH), launched 00:00Z, 0.4 hours before the alert went out and 4 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: 376 J/kg
Mixed-layer CIN: -6 J/kg
Mixed-layer LCL: 504 m above ground
0-6 km bulk shear: 60 kt
0-1 km storm-relative helicity: 257 m²/s²
0-3 km storm-relative helicity: 252 m²/s²
Significant tornado parameter: 0.5
Supercell composite: 3.1

Open this sounding in Storm Lab

The text

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

996 
WUUS52 KTAE 270026
SVRTAE
FLC073-270100-
/O.NEW.KTAE.SV.W.0013.120127T0026Z-120127T0100Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TALLAHASSEE FL
726 PM EST THU JAN 26 2012

THE NATIONAL WEATHER SERVICE IN TALLAHASSEE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CENTRAL LEON COUNTY IN FLORIDA...

* UNTIL 800 PM EST

* AT 725 PM EST...THE NATIONAL WEATHER SERVICE HAS DETECTED A SEVERE
  THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 60
  MPH.  THIS STORM WAS LOCATED 10 MILES SOUTHWEST OF TALLAHASSEE...OR
  NEAR LEON SINKS...AND MOVING NORTHEAST AT 35 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO EIGHT
  MILE POND...TALLAHASSEE REGIONAL A/P...LAKE MUNSON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. IF A TORNADO
IS SPOTTED...ACT QUICKLY AND MOVE TO A PLACE OF SAFETY IN A STURDY
STRUCTURE...SUCH AS A SMALL INTERIOR ROOM.

&&

LAT...LON 3031 8441 3035 8445 3054 8418 3040 8408
      3030 8433
TIME...MOT...LOC 0027Z 233DEG 30KT 3032 8436

$$

42-DVD

1 follow-up statement

092 
WWUS52 KTAE 270051
SVSTAE

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TALLAHASSEE FL
751 PM EST THU JAN 26 2012

FLC073-270101-
/O.EXP.KTAE.SV.W.0013.000000T0000Z-120127T0100Z/
LEON FL-
751 PM EST THU JAN 26 2012

...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL LEON COUNTY WILL
EXPIRE AT 800 PM EST...

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 EST FRIDAY MORNING
FOR NORTHWEST FLORIDA AND SOUTHWESTERN GEORGIA.

LAT...LON 3031 8441 3035 8445 3054 8418 3040 8408
      3030 8433
TIME...MOT...LOC 0051Z 233DEG 30KT 3044 8417

$$

42-DVD

The office that day

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

Issued	Product	Office	Counties	Lasted
Jan 26, 7:09 PM EST	Special Marine Warning	TAE		2 hr
Jan 26, 7:28 PM EST	Tornado Warning	TAE	Leon	22 min
Jan 26, 9:09 PM EST	Special Marine Warning	TAE		111 min
Jan 27, 10:32 AM EST	Small Craft Advisory	TAE		5 hr

Nearby

Severe Thunderstorm Warnings in Florida, 2012 Every severe thunderstorm warning in 2012

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.