Alert archive / Florida / Tornado Warnings in 1986

Tornado Warning 6, NWS Jacksonville, FL

June 13, 1986Alachua County, Florida

NWS Jacksonville, FL issued this tornado warning at Jun 13, 1986, 6:04 PM EDT for Alachua County, Florida. It was in force for 71 min.

The area

The counties it named.

The facts

Issued
Jun 13, 1986, 6:04 PM EDT (22:04 UTC)
Expired
Jun 13, 1986, 7:15 PM EDT
In force
71 min
Issued by
NWS Jacksonville, FL
Area
Whole counties

County Alachua County, FL

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

The nearest sounding before it

Jacksonville, FL (KAYS), launched 12:00Z, 10.1 hours before the alert went out and 111 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, Jacksonville, FL at 12:00Z on 1986-06-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 618 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, Jacksonville, FL at 12:00Z on 1986-06-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -13 square meters per square second.1939Sfc1 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
618 J/kg
Mixed-layer CIN
-97 J/kg
Mixed-layer LCL
949 m above ground
0-6 km bulk shear
10 kt
0-1 km storm-relative helicity
-13 m²/s²
0-3 km storm-relative helicity
68 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 
TTAA00 KJAX 132241
TORJAX
FLC001-132315-

BULLETIN-EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE JACKSONVILLE FL
640 PM EDT FRI JUN 13 1986

THE NATIONAL WEATHER SERVICE HAS ISSUED A TORNADO WARNING EFFECTIVE
UNTIL 715 PM EDT FOR PEOPLE IN THE FOLLOWING COUNTIES IN NORTHEAST
FLORIDA...ALACHUA

AT 635 PM EDT  PUBLIC REPORTED A TORNADO ON THE GROUND IN NORTHWEST
GAINESVILLE AT I75 AND 39TH STREET MOVING EAST. NATIONAL WEATHER
SERVICE RADAR SHOWED A SEVERE THUNDERSTORM IN THAT AREA.

IF YOU ARE IN THE PATH OF THIS TORNADO...YOU SHOULD GO TO A BASEMENT
SHELTER IF AVAILABLE. OTHERWISE GO TO A CENTRAL INTERIOR ROOM ON THE
LOWEST FLOOR POSSIBLE. CARS AND MOBILE HOMES SHOULD BE ABANDONED FOR
A) REINFORCED BUILDING.

What forecasters said that day

The local office's own words before this tornado warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

In the hours before

Special weather statement, Jun 13, 2:30 PM EDT, 3 hours 34 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
230 PM EDT FRI JUN 13 1986

AT 230 PM A VERY STRONG THUNDERSTORM OVER JACKSONVILLE'S WESTSIDE
WAS PRODUCING HEAVY RAINFALL AND PEA SIZE HAIL NEAR WILSON AND 103RD
STREETS. THIS AND OTHER STRONG THUNDERSTORMS OVER NORTHEAST FLORIDA
ARE MOVING SLOWLY TO THE EAST.

THESE SLOW MOVING THUNDERSTORMS ARE PRODUCING LOCALLY HEAVY RAINFALL..
STRONG GUSTY WINDS..FREQUENT LIGHTNING STRIKES..AND SMALL HAIL. THESE
STORMS MAY ALSO PRODUCE LOCALIZED STREET FLOODING.

THUNDERSTORMS WILL PERSIST UNTIL AFTER SUNSET. IF YOU ARE NEAR A
THUNDERSTORM BE AWARE OF THE POTENTIAL FOR HAZARDOUS CONDITIONS.
BOATERS SHOULD USE CAUTION AS THESE STORMS MOVE OFFSHORE DURING THE
NEXT ONE TO THREE HOURS.
Special weather statement, Jun 13, 5:32 PM EDT, 32 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
530 PM EDT FRI JUN 13 1986

AT 525 PM A VERY STRONG THUNDERSTORM OVER ALACHUA IN ALACHUA COUNTY
WAS INDICATED ON NATIONAL WEATHER SERVICE RADAR. OTHER STRONG THUNDER
STORMS WERE SHOWN IN AN AREA FROM LAKE CITY TO GAINESVILLE AND ARE
MOVING SLOWLY TO THE EAST.

THESE SLOW MOVING THUNDERSTORMS ARE PRODUCING LOCALLY HEAVY RAINFALL..
STRONG GUSTY WINDS..FREQUENT LIGHTNING STRIKES..AND
SMALL HAIL. THESE
STORMS MAY ALSO PRODUCE LOCALIZED STREET FLOODING.

THUNDERSTORMS WILL PERSIST UNTIL AFTER SUNSET. IF YOU ARE NEAR A
THUNDERSTORM BE AWARE OF THE POTENTIAL FOR HAZARDOUS CONDITIONS.

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 13, 5:55 PM EDTSevere Thunderstorm WarningJAXAlachua, Bradford60 min

Nearby

Tornado Warnings in Florida, 1986Every tornado warning in 1986Tornadoes in 1986

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.