Alert archive / Florida / Tornado Warnings in 1995

Tornado Warning 8, NWS Jacksonville, FL

May 11, 1995Lafayette County, Florida

NWS Jacksonville, FL issued this tornado warning at May 11, 1995, 11:47 AM EDT for Lafayette County, Florida. It was in force for 43 min.

The area

The counties it named.

The facts

Issued
May 11, 1995, 11:47 AM EDT (15:47 UTC)
Expired
May 11, 1995, 12:30 PM EDT
In force
43 min
Issued by
NWS Jacksonville, FL
Area
Whole counties

County Lafayette County, FL

The nearest sounding before it

Tallahassee Rgnl, FL (KTLH), launched 12:00Z, 3.8 hours before the alert went out and 117 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 1995-05-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2421 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Tallahassee Rgnl, FL at 12:00Z on 1995-05-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 154 square meters per square second.19395878Sfc1 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
2421 J/kg
Mixed-layer CIN
-8 J/kg
Mixed-layer LCL
469 m above ground
0-6 km bulk shear
43 kt
0-1 km storm-relative helicity
154 m²/s²
0-3 km storm-relative helicity
155 m²/s²
Significant tornado parameter
0.0
Supercell composite
9.3

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KJAX 111547
TORJAX
FLC067-111630-
 
BULLETIN - EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE JACKSONVILLE FL
1147 AM EDT THU MAY 11 1995
 
THE NATIONAL WEATHER SERVICE IN JACKSONVILLE HAS ISSUED A
TORNADO WARNING EFFECTIVE UNTIL 1230 PM EDT
FOR PERSONS IN THE FOLLOWING LOCATIONS ...
 
IN NORTH FLORIDA
 
   ...LAFAYETTE COUNTY
 
AT 1145 AM EDT DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM MOVING INTO
LAFAYETTE COUNTY WHICH MAY ALSO PRODUCE A TORNADO.
 
 
 
IF YOU ARE IN THE PATH OF A TORNADO...THE SAFEST PLACE IS A
BASEMENT.  GET UNDER A WORKBENCH OR PIECE OF STURDY FURNITURE.
IF NO BASEMENT IS AVAILABLE...SEEK SHELTER IN AN INTERIOR ROOM
SUCH AS A CLOSET ON THE LOWEST FLOOR.  USE BLANKETS...PILLOWS...
OR CUSHIONS TO COVER YOUR BODY.  AVOID WINDOWS.

The office that day

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

IssuedProductOfficeCountiesLasted
May 11, 11:18 AM EDTSevere Thunderstorm WarningJAXLafayette, Suwannee57 min
May 11, 11:18 AM EDTSevere Thunderstorm WarningJAXHamilton57 min
May 11, 12:21 PM EDTSevere Thunderstorm WarningJAXColumbia69 min
May 11, 1:00 PM EDTSevere Thunderstorm WarningJAXAlachua, Gilchrist60 min
May 11, 1:14 PM EDTSevere Thunderstorm WarningJAXClay61 min
May 11, 1:38 PM EDTTornado WarningJAXClay, Saint Johns67 min
May 11, 2:31 PM EDTTornado WarningJAXPutnam59 min

Nearby

Tornado Warnings in Florida, 1995Every tornado warning in 1995Tornadoes in 1995

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.