Alert archive / Florida / Tornado Warnings in 1993

Tornado Warning 21, NWS Jacksonville, FL

October 30, 1993Putnam County, Florida

NWS Jacksonville, FL issued this tornado warning at Oct 30, 1993, 11:55 AM EDT for Putnam County, Florida. It was in force for 35 min.

The area

The counties it named.

The facts

Issued
Oct 30, 1993, 11:55 AM EDT (15:55 UTC)
Expired
Oct 30, 1993, 12:30 PM EDT
In force
35 min
Issued by
NWS Jacksonville, FL
Area
Whole counties

County Putnam County, FL

The nearest sounding before it

Tampa Bay, FL (KTBW), launched 12:00Z, 3.9 hours before the alert went out and 221 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, Tampa Bay, FL at 12:00Z on 1993-10-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2419 joules per kilogram.LCLEL10008507005003002001001 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, Tampa Bay, FL at 12:00Z on 1993-10-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 305 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
2419 J/kg
Mixed-layer CIN
0 J/kg
Mixed-layer LCL
587 m above ground
0-6 km bulk shear
48 kt
0-1 km storm-relative helicity
305 m²/s²
0-3 km storm-relative helicity
339 m²/s²
Significant tornado parameter
3.7
Supercell composite
23.0

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KJAX 301556
TORJAX
FLC107-301630-
 
BULLETIN - EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE JACKSONVILLE FL
1155 AM EDT SAT OCT 30 1993
 
THE NATIONAL WEATHER SERVICE IN JACKSONVILLE FL   HAS ISSUED A
TORNADO WARNING EFFECTIVE UNTIL 1245 PM EDT
 
IN NORTH FLORIDA
 
   ...EASTERN PUTNAM COUNTY
 
AT 1152 AM EDT NATIONAL WEATHER SERVICE RADARS INDICATE A STRONG
THUNDERSTORM THAT HAS A HISTORY OF PRODUCING TORNADOES IS NOW LOCATED 3
MILES SOUHTEAST OF INTERLACHEN. THE THUNDERSTORM IS MOVING EAST AT NEAR
30 MPH AND SHOULD BE APPROCHING PALATKA WITHIN THE NEXT 20 MINUTES.
 
IF YOU ARE IN THE PATH OF A TORNADO...THE SAFEST PLACE IS A
BASEMENT.  GET UNDER A WORKBENCH OR PIECE OF STURDY FURNITZURE.
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
Oct 30, 10:34 AM EDTTornado WarningJAXAlachua, Gilchrist41 min
Oct 30, 11:20 AM EDTTornado WarningJAXPutnam40 min
Oct 30, 12:09 PM EDTSevere Thunderstorm WarningJAXSaint Johns66 min

Nearby

Tornado Warnings in Florida, 1993Every tornado warning in 1993Tornadoes in 1993

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.