Alert archive / Florida / Flash Flood Warnings in 2024
Flash Flood Warning 21, NWS Jacksonville, FL
NWS Jacksonville, FL issued this flash flood warning at Oct 9, 2024, 10:49 AM EDT for 4 counties in Florida. It was in force for 16 hr. 4 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Oct 9, 2024, 10:49 AM EDT (14:49 UTC)
- Expired
- Oct 10, 2024, 3:00 AM EDT
- In force
- 16 hr
- Issued by
- NWS Jacksonville, FL
- Area
- Storm-based polygon
- Flood severity
- None
Counties Clay County, FL, Flagler County, FL, Putnam County, FL, Saint Johns County, FL
The radar
The Jacksonville radar (KJAX), 85 km from the middle of the area, began a volume at 14:53 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Oct 9, 11:15 AM EDT | RAIN 3.09 | 1 Nw East Palatka, FL | Cocorahs report of 3.09 inches of rainfall since around 7:45 AM. |
| Oct 9, 3:30 PM EDT | RAIN 2.54 | 5 Nw Palm Coast, FL | Cocorahs observer near Palm Coast in Flagler County reported 2.54 inches since 6 AM Wednesday. Reporters yard is flooded. |
| Oct 9, 4:18 PM EDT | RAIN 4.47 | 4 Ne Bostwick, FL | Public Rain Gauge in Green Cove Springs reported 4.47 inches since midnight. |
| Oct 10, 2:30 AM EDT | RAIN 6.3 | Palatka, FL | Mesonet station AR990 Palatka measured 6.30 inches of rainfall in the last 24 hours. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Jacksonville, FL (KJAX), launched 12:00Z, 2.8 hours before the alert went out and 87 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
- 23 J/kg
- Mixed-layer CIN
- -80 J/kg
- Mixed-layer LCL
- 884 m above ground
- 0-6 km bulk shear
- 17 kt
- 0-1 km storm-relative helicity
- -4 m²/s²
- 0-3 km storm-relative helicity
- 159 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
529
WGUS52 KJAX 091449
FFWJAX
FLC019-035-107-109-092045-
/O.NEW.KJAX.FF.W.0021.241009T1449Z-241009T2045Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Jacksonville FL
1049 AM EDT Wed Oct 9 2024
The National Weather Service in Jacksonville has issued a
* Flash Flood Warning for...
Southeastern Clay County in northeastern Florida...
Northwestern Flagler County in northeastern Florida...
Northeastern Putnam County in northeastern Florida...
Southern St. Johns County in northeastern Florida...
* Until 445 PM EDT.
* At 1049 AM EDT, Local law enforcement in Putnam County reported
flooding resulting from heavy rainfall across the warned area.
Between 2 and 4 inches of rain have fallen. Additional rainfall
amounts of 2 to 4 inches are possible in the warned area. Flash
flooding is ongoing or expected to begin shortly.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Law enforcement reported.
IMPACT...Flash flooding of small creeks and streams, urban
areas, highways, streets and underpasses as well as
other poor drainage and low-lying areas.
* Some locations that will experience flash flooding include...
Palm Coast, Palatka, Hastings, East Palatka, Orange Mills, Federal
Point and Bostwick.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Be aware of your surroundings and do not drive on flooded roads.
Please report observed flooding to local emergency services or law
enforcement and request they pass this information to the National
Weather Service when you can do so safely.
&&
LAT...LON 2987 8160 2985 8158 2978 8154 2972 8151
2969 8138 2972 8125 2969 8125 2961 8126
2959 8146 2963 8169 2987 8165
FLASH FLOOD...OBSERVED
$$
NELSON2 follow-up statements
395
WGUS52 KJAX 092037
FFWJAX
FLC019-035-107-109-100245-
/O.EXT.KJAX.FF.W.0021.000000T0000Z-241010T0245Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Jacksonville FL
437 PM EDT Wed Oct 9 2024
The National Weather Service in Jacksonville has extended the
* Flash Flood Warning for...
Southeastern Clay County in northeastern Florida...
Northwestern Flagler County in northeastern Florida...
Northeastern Putnam County in northeastern Florida...
Southern St. Johns County in northeastern Florida...
* Until 1045 PM EDT Wednesday.
* At 437 PM EDT, Doppler radar indicated heavy rain across the
warned area. Between 3 and 5 inches of rain have fallen.
Additional rainfall amounts of 3 to 6 inches are possible in the
warned area. Flash flooding is ongoing or expected to begin
shortly.
HAZARD...Flash flooding caused by heavy rain.
SOURCE...Radar.
IMPACT...Flash flooding of small creeks and streams, urban
areas, highways, streets and underpasses as well as
other poor drainage and low-lying areas.
* Some locations that will experience flash flooding include...
Palm Coast, Palatka, Hastings, East Palatka, Orange Mills, Federal
Point and Bostwick.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Be aware of your surroundings and do not drive on flooded roads.
Please report observed flooding to local emergency services or law
enforcement and request they pass this information to the National
Weather Service when you can do so safely.
&&
LAT...LON 2987 8160 2985 8158 2978 8154 2972 8151
2969 8138 2972 8125 2969 8125 2961 8126
2959 8146 2963 8169 2987 8165
FLASH FLOOD...RADAR INDICATED
$$
NELSON954
WGUS52 KJAX 100242
FFWJAX
FLC019-035-107-109-100700-
/O.EXT.KJAX.FF.W.0021.000000T0000Z-241010T0700Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Jacksonville FL
1042 PM EDT Wed Oct 9 2024
The National Weather Service in Jacksonville has extended the
* Flash Flood Warning for...
Southeastern Clay County in northeastern Florida...
Northwestern Flagler County in northeastern Florida...
Northeastern Putnam County in northeastern Florida...
Southern St. Johns County in northeastern Florida...
* Until 300 AM EDT.
* At 1042 PM EDT, Doppler radar indicated heavy rain across the
warned area. Between 3 and 5 inches of rain have fallen.
Additional rainfall amounts of 1 to 3 inches are possible in the
warned area. Flash flooding is ongoing or expected to begin
shortly.
HAZARD...Flash flooding caused by heavy rain.
SOURCE...Radar.
IMPACT...Flash flooding of small creeks and streams, urban
areas, highways, streets and underpasses as well as
other poor drainage and low-lying areas.
* Some locations that will experience flash flooding include...
Palm Coast, Palatka, Hastings, East Palatka, Orange Mills, Federal
Point and Bostwick.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Be aware of your surroundings and do not drive on flooded roads.
Please report observed flooding to local emergency services or law
enforcement and request they pass this information to the National
Weather Service when you can do so safely.
&&
LAT...LON 2987 8160 2985 8158 2978 8154 2972 8151
2969 8138 2972 8125 2969 8125 2961 8126
2959 8146 2963 8169 2987 8165
FLASH FLOOD...RADAR INDICATED
$$
WOLFThe office that day
Everything else NWS Jacksonville, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 9, 12:02 AM EDT | Special Marine Warning | JAX | 58 min | |
| Oct 9, 1:59 AM EDT | Rip Current Statement | JAX | Duval, Flagler, Nassau | 5 days |
| Oct 9, 1:59 AM EDT | High Surf Advisory | JAX | Duval, Flagler, Nassau | 3 days |
| Oct 9, 10:11 AM EDT | Flash Flood Warning | JAX | Saint Johns | 17 hr |
| Oct 9, 10:38 AM EDT | Wind Advisory | JAX | Alachua, Baker, Bradford, Clay, Columbia, Duval and 7 more | 30 hr |
| Oct 9, 3:03 PM EDT | Flash Flood Warning | JAX | Clay, Saint Johns | 6 hr |
| Oct 9, 3:12 PM EDT | Flash Flood Warning | JAX | Flagler, Putnam, Saint Johns | 6 hr |
| Oct 9, 5:20 PM EDT | Flash Flood Warning | JAX | Flagler, Marion, Putnam | 10 hr |
| Oct 9, 5:45 PM EDT | Flash Flood Warning | JAX | Alachua, Marion, Putnam | 9 hr |
Nearby
Flash Flood Warnings in Florida, 2024Every flash flood warning in 2024
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.