Alert archive / Florida / Flash Flood Warnings in 1998
Flash Flood Warning 13, NWS Jacksonville, FL
NWS Jacksonville, FL issued this flash flood warning at Feb 17, 1998, 4:15 PM EST for 4 counties in Florida. It was in force for 6 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 17, 1998, 4:15 PM EST (21:15 UTC)
- Expired
- Feb 17, 1998, 10:00 PM EST
- In force
- 6 hr
- Issued by
- NWS Jacksonville, FL
- Area
- Whole counties
Counties Columbia County, FL, Gilchrist County, FL, Hamilton County, FL, Suwannee County, FL
The radar
The Moody AFB radar (KVAX), 83 km from the middle of the area, began a volume at 21:18 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Jacksonville, FL (KJAX), launched 12:00Z, 9.3 hours before the alert went out and 116 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
- 170 J/kg
- Mixed-layer CIN
- -128 J/kg
- Mixed-layer LCL
- 830 m above ground
- 0-6 km bulk shear
- 79 kt
- 0-1 km storm-relative helicity
- 201 m²/s²
- 0-3 km storm-relative helicity
- 217 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.4
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KJAX 172117 FFWJAX FLC001-003-007-019-023-031-035-041-047-089-107-109-121-125-180300- BULLETIN FLOOD WARNING...UPDATE TO ADD HAMILTON COUNTY... NATIONAL WEATHER SERVICE JACKSONVILLE FL 415 PM EST TUE FEB 17 1998 THE NATIONAL WEATHER SERVICE IN JACKSONVILLE FL HAS ISSUED A FLOOD WARNING EFFECTIVE UNTIL 10 PM EST FOR PEOPLE IN THE FOLLOWING COUNTIES IN NORTH FLORIDA... ALACHUA...BAKER...BRADFORD...CLAY...COLUMBIA...DUVAL...FLAGLER...HAMILTON GILCHRIST...MARION...NASSAU...PUTNAM...ST JOHNS...SUWANNEE...UNION A FLOOD WARNING MEANS THAT FLOODING IS CONTINUING OR IS IMMINENT. DUE TO EXTENSIVE RAINFALL...GREATER THAN 3 INCHES AND AS MUCH AS 7 INCHES OVERNIGHT...WIDESPREAD FLOODING CONTINUES IN NORTH FLORIDA DUE TO EXISTING SATURATED GROUND. WIDESPREAD ROAD DAMAGE EXISTS...LOCALLY IMPASSIBLE ROADS AND PONDING OF WATER ON ROADS IS CONTINUING EVEN AFTER THE RAIN HAS STOPPED. RESIDENTS ARE ADVISED TO KEEP ABREST OF THEIR LOCAL SITUATION OVER THE NEXT SEVERAL DAYS AS SURFACE WATER SLOWLY DRAINS INTO THE ALREADY FLOODING RIVER SYSTEMS OF NORTH FLORIDA AND SOUTHEAST GEORGIA. MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. ALL MOTORISTS ARE WARNED NOT TO ATTEMPT TO CROSS BRIDGES...DIPS...OR LOW SPOTS IF WATER COVERS THE ROADWAY. BE PARTICULARLY CAUTIOUS TODAY AS ACTUAL ROAD DAMAGE EXISTS IN NEARLY EVERY NORTH FLORIDA COUNTY. SPECIFICALLY ROAD DAMAGE REPORTS HAVE BEEN RECEIVED FROM BRADFORD...PUTNAM...SUWANNEE...FLAGLER... ALACHUA...AND GILCHRIST COUNTIES. NEVER TRY TO CROSS A FLOWING STREAM...EVEN A SMALL ONE...ON FOOT. TO ESCAPE RISING WATER MOVE UP TO HIGHER GROUND. KEEP CHILDREN CLEAR OF ALL FLOODED AREAS AND FLOWING WATER. ALL CREEKS AND STREAMS IN NORTH FLORIDA AND SOUTHEAST GEORGIA SHOULD BE CONSIDERED DANGEROUS. REPORTS BY COUNTY... ...ALACHUA...OLD BELLAMY ROAD CLOSED...TURKEY CREEK DEVELOPMENT HAS SEVERAL HOMES FLOODED...SOME SMALL BRIDGES ARE WASHED OUT. ...BRADFORD...ROAD DAMAGE...65 SECONDARY AND DIRT ROADS IMPASSABLE. ...BAKER...ST MARYS RIVER RISING RAPIDLY AND WILL CREST NEAR 18-19 FEET. ROAD FLOODING AND IMPASSIBLE DIRT ROADS. ...CLAY...BLACK CREEK IS NOW AT FLOOD STAGE AND EXPECTED TO CREST TOMORROW AT 23 FEET...ABOVE THE APRIL 1997 FLOOD. ROADS FLOODED. ...COLUMBIA...32 ROADS DAMAGED 2 HOMES FLOODED. ...DUVAL...FLOODING ALONG WILLS BRANCH WITH UP TO 5 FEET IN SOME AREAS... WIDESPREAD LOCALIZED STREET FLOODING CONTINUES. ...FLAGLER...WIDESPREAD CROP AND FIELD FLOODING WITH DEAD AND CRESCENT LAKES OVERFLOWING. ...GILCHRIST...ROAD FLOODING ALONG ROUTE 337S AND 232 AND OTHERS. ...HAMILTON...NEAR WHITE SPRINGS US 41 UNDERCUT AND SEVERAL LOCAL ROADS UNDER WATER OR DAMAGED. SEVERAL HOMES THREATENED BY FLOODING. ...MARION...NICHOLAS POND FILLED TO OVERFLOWING AND MAY LATER ENDANGER NICHOLAS ESTATES AREA...NUMEROUS ROADS FLOODED. ...PUTNAM...CROP AND ROAD FLOODING AND CREEKS OVERFLOWING. ...ST JOHNS...EXTENSIVE CROP AND FIELD FLOODING. ...SUWANNEE...HOMES THREATENED IN SEVERAL AREAS. ...UNION...WIDESPREAD PONDING AND FLOODING...STATE ROADS NOW CLEAR... AVOID SECONDARY AND DIRT ROADS IF AT ALL POSSIBLE. PLEASE TUNE TO YOUR LOCAL RADIO OR TELEVISION STATIONS... YOUR CABLE TELEVISION OUTLET... OR NOAA WEATHER RADIO TO STAY UP TO DATE WITH THIS FLOODING IN YOUR AREA. WELSH/KUYPER
The office that day
Everything else NWS Jacksonville, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 16, 7:47 PM EST | Tornado Warning | JAX | Alachua | 43 min |
| Feb 16, 8:06 PM EST | Severe Thunderstorm Warning | JAX | Union | 29 min |
| Feb 16, 8:18 PM EST | Severe Thunderstorm Warning | JAX | Baker | 42 min |
| Feb 16, 8:31 PM EST | Severe Thunderstorm Warning | JAX | Nassau | 44 min |
| Feb 16, 8:55 PM EST | Severe Thunderstorm Warning | JAX | Suwannee | 45 min |
| Feb 16, 9:23 PM EST | Severe Thunderstorm Warning | JAX | Columbia, Hamilton | 42 min |
| Feb 16, 10:57 PM EST | Severe Thunderstorm Warning | JAX | Columbia, Hamilton, Suwannee | 48 min |
| Feb 16, 11:32 PM EST | Severe Thunderstorm Warning | JAX | Baker | 48 min |
| Feb 16, 11:52 PM EST | Severe Thunderstorm Warning | JAX | Nassau | 48 min |
| Feb 17, 12:38 AM EST | Severe Thunderstorm Warning | JAX | Columbia, Gilchrist, Suwannee | 32 min |
| Feb 17, 12:54 AM EST | Severe Thunderstorm Warning | JAX | Baker, Union | 31 min |
| Feb 17, 1:18 AM EST | Severe Thunderstorm Warning | JAX | Duval, Nassau | 47 min |
| Feb 17, 8:16 AM EST | Flash Flood Warning | JAX | Columbia, Hamilton, Suwannee | 6 hr |
| Feb 17, 8:16 AM EST | Flash Flood Warning | JAX | Baker, Duval, Nassau | 6 hr |
| Feb 17, 8:16 AM EST | Flash Flood Warning | JAX | Union | 6 hr |
| Feb 17, 8:16 AM EST | Flash Flood Warning | JAX | Clay | 6 hr |
| Feb 17, 2:25 PM EST | Flash Flood Warning | JAX | Alachua, Columbia, Gilchrist, Hamilton, Suwannee, Union | 6 hr |
| Feb 17, 2:25 PM EST | Flash Flood Warning | JAX | Bradford, Clay, Flagler, Putnam, Saint Johns | 6 hr |
| Feb 17, 2:25 PM EST | Flash Flood Warning | JAX | Baker, Duval, Nassau | 6 hr |
| Feb 17, 4:15 PM EST | Flash Flood Warning | JAX | Baker, Clay, Duval, Nassau, Saint Johns | 6 hr |
| Feb 17, 4:15 PM EST | Flash Flood Warning | JAX | Alachua, Bradford, Putnam, Union | 6 hr |
| Feb 17, 4:15 PM EST | Flash Flood Warning | JAX | Flagler | 6 hr |
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; radar from the NEXRAD Level II archive.