Alert archive / Florida / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 49, NWS Tallahassee, FL

March 15, 2001Walton County, Washington County, Florida

NWS Tallahassee, FL issued this severe thunderstorm warning at Mar 15, 2001, 3:03 AM CST for Walton County, Washington County, Florida. It was in force for 42 min. 1 report came from inside the area while it was in force.

The area

The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties, with what was reported inside it.

The facts

Issued: Mar 15, 2001, 3:03 AM CST (09:03 UTC)
Expired: Mar 15, 2001, 3:45 AM CST
In force: 42 min
Issued by: NWS Tallahassee, FL
Area: Whole counties; the outline is the Mesonet’s reconstruction

Counties Walton County, FL, Washington County, FL

What was reported inside it

Time	Report	Where	Remark
Mar 15, 3:40 AM CST	Hail 1	Vernon, FL	Quarter size hail reported by WJHG-7 TV in Panama City.

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The watch it was issued in

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

Issued	Product	Office	Lasted
Mar 15, 1:30 AM CST	Tornado Watch	SPC	6 hr

The nearest sounding before it

Tallahassee Rgnl, FL (KTLH), launched 00:00Z, 9.1 hours before the alert went out and 153 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 2174 m above ground
0-6 km bulk shear: 57 kt
0-1 km storm-relative helicity: 105 m²/s²
0-3 km storm-relative helicity: 231 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 
WUUS52 KTAE 150904
SVRTLH
FLC131-133-150945-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TALLAHASSEE FL
303 AM CST THU MAR 15 2001

THE NATIONAL WEATHER SERVICE IN TALLAHASSEE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHEASTERN WALTON COUNTY IN FLORIDA
  WASHINGTON COUNTY IN FLORIDA

* UNTIL 345 AM CST...

* AT 303 AM CST NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A   
  SEVERE THUNDERSTORM WITH DAMAGING WINDS ABOUT 12 MILES EAST OF     
  SANTA ROSA BEACH...MOVING NORTHEAST AT 60 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  RED HEAD...BUNKER DONATION BY 310 AM CST...
  VERNON...GREENHEAD BY 320 AM CST...
  SUNNY HILLS BY 325 AM CST...
  WAUSAU BY 330 AM CST...

A TORNADO WATCH IS ALSO IN EFFECT FOR THE WARNED AREA. REMEMBER...
SEVERE THUNDERSTORMS CAN AND OCCASIONALLY PRODUCE TORNADOES WITH
LITTLE OR NO ADVANCE WARNING. REMAIN CALM...BUT BE ALERT FOR RAPtIDLY
CHANGING CONDITIONS.

LAT...LON 3053 8611 3037 8604 3045 8596 3046 8552
          3071 8561

.END

12-WATSON

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 15, 2:01 AM CST	Severe Thunderstorm Warning	TAE	Holmes	29 min
Mar 15, 3:37 AM CST	Tornado Warning	TAE	Jackson, Washington	38 min
Mar 15, 6:32 AM CST	Severe Thunderstorm Warning	TAE	Gadsden	28 min
Mar 15, 1:45 PM CST	Severe Thunderstorm Warning	TAE	Dixie, Lafayette, Taylor	45 min

Nearby

Severe Thunderstorm Warnings in Florida, 2001 Every severe thunderstorm warning in 2001

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.