Alert archive / Florida / Flash Flood Warnings in 1998
Flash Flood Warning 21, NWS Jacksonville, FL
NWS Jacksonville, FL issued this flash flood warning at Feb 22, 1998, 5:33 PM EST for Baker County, Duval County, Nassau County, Florida. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Feb 22, 1998, 5:33 PM EST (22:33 UTC)
- Expired
- Feb 22, 1998, 9:00 PM EST
- In force
- 3 hr
- Issued by
- NWS Jacksonville, FL
- Area
- Whole counties
Counties Baker County, FL, Duval County, FL, Nassau County, FL
The nearest sounding before it
Jacksonville, FL (KJAX), launched 12:00Z, 10.6 hours before the alert went out and 21 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1448 m above ground
- 0-6 km bulk shear
- 48 kt
- 0-1 km storm-relative helicity
- 270 m²/s²
- 0-3 km storm-relative helicity
- 371 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KJAX 222235 COR FFWJAX FLC003-031-089-GAC049-299-230200- BULLETIN FLOOD WARNING...CORRECTION NATIONAL WEATHER SERVICE JACKSONVILLE FL 533 PM EST SUN FEB 22 1998 ...THIS FLOOD WARNING APPLIES TO THE FOLLOWING COUNTIES...IN SOUTH GEORGIA...CHARLTON AND SOUTHERN WARE. IN NORTH FLORIDA...BAKER... DUVAL...NASSAU... NUMEROUS REPORTS OF FLOODING IN NORTHERN FLORIDA ARE BEING RECIEVED... ESPECIALLY IN THE JACKSONVILLE WESTSIDE...SPRINGFIELD AND MCCOYS CREEK AREAS. RADAR INDICATES THAT ADDITIONAL RAINFALL AMOUNTS OF 1 TO 2 INCHES MAY FALL BY MIDNIGHT...WITH LOCALLY HEAVIER AMOUNTS POSSIBLE. DUE TO THE SATURATED GROUND CONDITIONS ADDITIONAL FLOODING IS EXPECTED OVERNIGHT. IF YOU RECIEVED FLOODING DURING LAST MONDLAY'S STORM IT IS PRUDENT TO ASSUME YOU WILL BE FLOODED ONCE AGAIN. TAKE PRECAUTIONS FOR THE PROTECTION OF LIFE AND PROPERITY NOW. DO NOT WADE INTO FLOWING WATER OR ATTEMPT TO DRIVE INTO WATER OF UNKNOWN DEPTH. SANDRIK/MOBBS. &
The office that day
Everything else NWS Jacksonville, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 22, 11:04 AM EST | Severe Thunderstorm Warning | JAX | Gilchrist, Suwannee | 91 min |
| Feb 22, 11:04 AM EST | Severe Thunderstorm Warning | JAX | Hamilton | 91 min |
| Feb 22, 11:14 AM EST | Flash Flood Warning | JAX | Hamilton | 6 hr |
| Feb 22, 11:32 AM EST | Severe Thunderstorm Warning | JAX | Baker, Bradford, Columbia, Union | 118 min |
| Feb 22, 11:32 AM EST | Severe Thunderstorm Warning | JAX | Alachua | 118 min |
| Feb 22, 12:29 PM EST | Severe Thunderstorm Warning | JAX | Clay, Duval, Nassau | 92 min |
| Feb 22, 2:15 PM EST | Severe Thunderstorm Warning | JAX | Alachua | 45 min |
| Feb 22, 3:16 PM EST | Severe Thunderstorm Warning | JAX | Putnam | 45 min |
| Feb 22, 3:34 PM EST | Tornado Warning | JAX | Putnam | 31 min |
| Feb 22, 3:46 PM EST | Severe Thunderstorm Warning | JAX | Alachua, Marion | 44 min |
| Feb 22, 3:52 PM EST | Severe Thunderstorm Warning | JAX | Saint Johns | 38 min |
| Feb 22, 4:07 PM EST | Severe Thunderstorm Warning | JAX | Putnam | 53 min |
| Feb 22, 4:18 PM EST | Tornado Warning | JAX | Putnam | 42 min |
| Feb 22, 4:33 PM EST | Severe Thunderstorm Warning | JAX | Saint Johns | 27 min |
| Feb 22, 4:55 PM EST | Flash Flood Warning | JAX | Columbia, Gilchrist, Hamilton, Suwannee | 4 hr |
| Feb 22, 4:59 PM EST | Severe Thunderstorm Warning | JAX | Flagler | 31 min |
Nearby
Flash Flood Warnings in Florida, 1998Every flash flood warning in 1998
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.