Alert archive / Florida / Tornado Warnings in 1994
Tornado Warning 8, NWS Jacksonville, FL
NWS Jacksonville, FL issued this tornado warning at Jul 29, 1994, 2:40 PM EDT for Duval County, Florida. It was in force for 50 min.
The area
The counties it named.
The facts
- Issued
- Jul 29, 1994, 2:40 PM EDT (18:40 UTC)
- Expired
- Jul 29, 1994, 3:30 PM EDT
- In force
- 50 min
- Issued by
- NWS Jacksonville, FL
- Area
- Whole counties
County Duval County, FL
The nearest sounding before it
Jacksonville, FL (KAYS), launched 12:00Z, 6.7 hours before the alert went out and 19 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.
- Mixed-layer CAPE
- 955 J/kg
- Mixed-layer CIN
- -18 J/kg
- Mixed-layer LCL
- 605 m above ground
- 0-6 km bulk shear
- 28 kt
- 0-1 km storm-relative helicity
- 80 m²/s²
- 0-3 km storm-relative helicity
- 110 m²/s²
- Significant tornado parameter
- 0.3
- Supercell composite
- 2.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KJAX 291841 TORJAX FLC031-291930- BULLETIN - EBS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE JACKSONVILLE FL 240 PM EDT FRI JUL 29 1994 THE NATIONAL WEATHER SERVICE IN JACKSONVILLE FL HAS ISSUED A TORNADO WARNING EFFECTIVE UNTIL 330 PM EDT ... IN NORTH FLORIDA ...DUVAL COUNTY AT 237 PM EDT SKYWARN SPOTTERS IN DOWNTOWN JACKSONVILLE REPORT A WATER SPOUT OVER THE ST JOHNS RIVER NEAR THE NAVAL AIR STATION AND MOVING NORTHEAST 5 TO 10 MPH. AT THIS SPEED IT SHOULD MOVE NEAR THE DOWNTOWN SECTION OF THE CITY AND SOUTHSIDE WITHIN THE NEXT HALF HOUR. 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 BBASEMENT 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. &
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, Jul 29, 2:30 PM EDT, 10 minutes before
FLZ025-032-033-291930- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE JACKSONVILLE FL 230 PM EDT FRI JUL 29 1994 ........STRONG THUNDERSTORMS MOVING THROUGH JACKSONVILLES SOUTHSIDE.... AN AREA OF STRONG THUNDERSTORMS CONTINUED TO DEVELOP IN SOUTHERN JACKSONVILLE FRON I-295 AT THE BUCKMAN BRIDGE EAST TO PONTE VEDRA. OTHER THUNDERSTORMS WERE DEVELOPING IN THE SOUTHEASTERN PART OF CLAY COUNTY AND WILL MOVE INTO SOUTHERN DUVAL AND WESTERN ST. JOHNS COUNTIES IN THE NEXT 15 MINUTES. THE THUNDERSTORMS HAVE STREGNTHENED RAPIDLY AND HAVE SLOWED DOWN IN FORWARD SPEED IN THE LAST 30 MINUTES TO A NORTHEAST MOVEMENT OF 5 TO 10 MILES AN HOUR. VERY HEAVY RAINFALL AND FREQUENT CLOUD TO GROUND LIGHTNING IS LIKELY WITH THESE THUNDERSTORMS OVER THE NEXT HOUR. SMALL HAIL AND GUSTY WINDS ARE ALWAYS POSSIBLE WITH STRONG THUNDERSTORMS. MOTORIST IN THESE AREAS AND MARINE INTERESTS ON THE ST. JOHNS RIVER AS WELL AS THE ATLANTIC COASTAL WATERS SHOULD BE ALERT FOR RAPIDLY CHANGING WEATHER CONDITIONS.
Special weather statement, Jul 29, 2:31 PM EDT, 9 minutes before
FLZ025-032-033-291930- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE JACKSONVILLE FL 230 PM EDT FRI JUL 29 1994 ........STRONG THUNDERSTORMS MOVING THROUGH JACKSONVILLES SOUTHSIDE.... AN AREA OF STRONG THUNDERSTORMS CONTINUED TO DEVELOP IN SOUTHERN JACKSONVILLE FRON I-295 AT THE BUCKMAN BRIDGE EAST TO PONTE VEDRA. OTHER THUNDERSTORMS WERE DEVELOPING IN THE SOUTHEASTERN PART OF CLAY COUNTY AND WILL MOVE INTO SOUTHERN DUVAL AND WESTERN ST. JOHNS COUNTIES IN THE NEXT 15 MINUTES. THE THUNDERSTORMS HAVE STREGNTHENED RAPIDLY AND HAVE SLOWED DOWN IN FORWARD SPEED IN THE LAST 30 MINUTES TO A NORTHEAST MOVEMENT OF 5 TO 10 MILES AN HOUR. VERY HEAVY RAINFALL AND FREQUENT CLOUD TO GROUND LIGHTNING IS LIKELY WITH THESE THUNDERSTORMS OVER THE NEXT HOUR. SMALL HAIL AND GUSTY WINDS ARE ALWAYS POSSIBLE WITH STRONG THUNDERSTORMS. MOTORIST IN THESE AREAS AND MARINE INTERESTS ON THE ST. JOHNS RIVER AS WELL AS THE ATLANTIC COASTAL WATERS SHOULD BE ALERT FOR RAPIDLY CHANGING WEATHER CONDITIONS.
The office that day
Everything else NWS Jacksonville, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 29, 3:12 PM EDT | Severe Thunderstorm Warning | JAX | Duval, Saint Johns | 63 min |
Nearby
Tornado Warnings in Florida, 1994Every tornado warning in 1994Tornadoes in 1994
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.