Alert archive / Florida / Severe Thunderstorm Warnings in 1994
Severe Thunderstorm Warning 41, NWS Jacksonville, FL
NWS Jacksonville, FL issued this severe thunderstorm warning at Jun 11, 1994, 5:30 PM EDT for Clay County, Duval County, Florida. It was in force for 60 min.
The area
The counties it named.
The facts
- Issued
- Jun 11, 1994, 5:30 PM EDT (21:30 UTC)
- Expired
- Jun 11, 1994, 6:30 PM EDT
- In force
- 60 min
- Issued by
- NWS Jacksonville, FL
- Area
- Whole counties
Counties Clay County, FL, Duval County, FL
The nearest sounding before it
Jacksonville, FL (KAYS), launched 12:00Z, 9.5 hours before the alert went out and 38 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
- 1005 J/kg
- Mixed-layer CIN
- -47 J/kg
- Mixed-layer LCL
- 885 m above ground
- 0-6 km bulk shear
- 13 kt
- 0-1 km storm-relative helicity
- 59 m²/s²
- 0-3 km storm-relative helicity
- 90 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
What forecasters said that day
The local office's own words before this severe thunderstorm 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 11, 3:56 PM EDT, 1 hour 34 minutes before
FLC003-023-047-067-089-121-112200- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE JACKSONVILLE FL 356 PM EDT SAT JUN 11 1994 ...A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR NORTHERN FLORIDA AND SOUTHERN GEORGIA UNTIL 900 PM... AT 350 PM EDT NATIONAL WEATHER SERVICE RADAR SHOWS AN AREA OF THUNDERSTORMS...SOME WITH VERY HEAVY RAIN...FROM WAYNE COUNTY GEORGIA TO VALDOSTA GEORGIA THEN WEST TO JUST NORTH OF TALLAHASSEE. THE STRONGEST THUNDERSTORMS WERE IN THE VICINITY OF VALDOSTA AND 20 MILES WEST OF SAINT SIMONS GEORGIA. MOVEMENT OF THE THUNDERSTORMS WAS SOUTHEAST AT 25 H AT THE PRESENT RATE OF MOVEMENT THESE THUNDERSTORMS WILL ENTER HAMILTON...COLUMBIA...BAKKER...SUWANEE...AND NASSAU COUNTIES WITHIN THE NEXT 1 TO 2 HOURS. RESIDENTS IN THESE COUNTIES SHOULD BE ALERT TO RAPIDLY CHANGING WEATHER CONDITIONS AND TAKE SHELTER IF THREATNING WEATHER APPROACHES. BOATERS ON INLAND WATERWAYS AND THE ATLANTIC OCEAN OF NORTHEAST FLORIDA SHOULD SEEK SAFE HARBOR. STAY TUNED TO NOAA WEATHER RADIO AND LOCAL NEWS SERVICES FOR LATER WEATHER STATEMENTS OR WARNINGS..
Special weather statement, Jun 11, 3:56 PM EDT, 1 hour 34 minutes before
FLC003-023-047-067-089-121-112200- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE JACKSONVILLE FL 356 PM EDT SAT JUN 11 1994 ...A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR NORTHERN FLORIDA AND SOUTHERN GEORGIA UNTIL 900 PM... AT 350 PM EDT NATIONAL WEATHER SERVICE RADAR SHOWS AN AREA OF THUNDERSTORMS...SOME WITH VERY HEAVY RAIN...FROM WAYNE COUNTY GEORGIA TO VALDOSTA GEORGIA THEN WEST TO JUST NORTH OF TALLAHASSEE. THE STRONGEST THUNDERSTORMS WERE IN THE VICINITY OF VALDOSTA AND 20 MILES WEST OF SAINT SIMONS GEORGIA. MOVEMENT OF THE THUNDERSTORMS WAS SOUTHEAST AT 25 H AT THE PRESENT RATE OF MOVEMENT THESE THUNDERSTORMS WILL ENTER HAMILTON...COLUMBIA...BAKKER...SUWANEE...AND NASSAU COUNTIES WITHIN THE NEXT 1 TO 2 HOURS. RESIDENTS IN THESE COUNTIES SHOULD BE ALERT TO RAPIDLY CHANGING WEATHER CONDITIONS AND TAKE SHELTER IF THREATNING WEATHER APPROACHES. BOATERS ON INLAND WATERWAYS AND THE ATLANTIC OCEAN OF NORTHEAST FLORIDA SHOULD SEEK SAFE HARBOR. STAY TUNED TO NOAA WEATHER RADIO AND LOCAL NEWS SERVICES FOR LATER WEATHER STATEMENTS OR WARNINGS..
The office that day
Everything else NWS Jacksonville, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 11, 4:26 PM EDT | Severe Thunderstorm Warning | JAX | Hamilton | 64 min |
| Jun 11, 4:51 PM EDT | Severe Thunderstorm Warning | JAX | Nassau | 69 min |
| Jun 11, 5:42 PM EDT | Severe Thunderstorm Warning | JAX | Columbia, Suwannee | 63 min |
| Jun 11, 6:01 PM EDT | Severe Thunderstorm Warning | JAX | Saint Johns | 119 min |
| Jun 11, 6:30 PM EDT | Severe Thunderstorm Warning | JAX | Clay, Duval | 60 min |
| Jun 11, 6:58 PM EDT | Severe Thunderstorm Warning | JAX | Saint Johns | 62 min |
| Jun 11, 7:27 PM EDT | Severe Thunderstorm Warning | JAX | Alachua, Putnam | 63 min |
| Jun 11, 3:10 PM EDT | Severe Thunderstorm Warning | JAX | Berrien | 50 min |
| Jun 11, 4:25 PM EDT | Severe Thunderstorm Warning | JAX | Brantley, Camden | 50 min |
| Jun 11, 4:47 PM EDT | Severe Thunderstorm Warning | JAX | Glynn | 43 min |
| Jun 11, 5:01 PM EDT | Tornado Warning | JAX | Camden | 44 min |
Nearby
Severe Thunderstorm Warnings in Florida, 1994Every severe thunderstorm warning 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.