Alert archive / Florida / Flash Flood Warnings in 2025
Flash Flood Warning 25, NWS Jacksonville, FL
NWS Jacksonville, FL issued this flash flood warning at Aug 18, 2025, 6:19 PM EDT for Marion County, Florida. It was in force for 2 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
- Aug 18, 2025, 6:19 PM EDT (22:19 UTC)
- Expired
- Aug 18, 2025, 8:35 PM EDT
- In force
- 2 hr
- Issued by
- NWS Jacksonville, FL
- Area
- Storm-based polygon
- Flood severity
- None
County Marion County, FL
The radar
The Jacksonville radar (KJAX), 146 km from the middle of the area, began a volume at 22:20 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
Tampa Bay, FL (KTBW), launched 12:00Z, 10.3 hours before the alert went out and 171 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
- 1511 J/kg
- Mixed-layer CIN
- -35 J/kg
- Mixed-layer LCL
- 1027 m above ground
- 0-6 km bulk shear
- 3 kt
- 0-1 km storm-relative helicity
- -6 m²/s²
- 0-3 km storm-relative helicity
- 5 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The office that day
Everything else NWS Jacksonville, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 17, 8:26 PM EDT | Special Weather Statement | JAX | Gilchrist | 34 min |
| Aug 18, 1:29 AM EDT | Rip Current Statement | JAX | Duval, Flagler, Nassau, Saint Johns | 8 days |
| Aug 18, 1:33 AM EDT | Small Craft Advisory | JAX | 4 days | |
| Aug 18, 9:28 AM EDT | Areal Flood Advisory | JAX | Duval | 41 min |
| Aug 18, 1:53 PM EDT | Areal Flood Advisory | JAX | Nassau | 112 min |
| Aug 18, 3:43 PM EDT | Areal Flood Advisory | JAX | Nassau | 107 min |
| Aug 18, 5:13 PM EDT | Severe Thunderstorm Warning | JAX | Marion | 32 min |
| Aug 18, 5:17 PM EDT | Special Weather Statement | JAX | Bradford | 28 min |
| Aug 18, 5:29 PM EDT | Special Weather Statement | JAX | Marion | 31 min |
| Aug 18, 5:43 PM EDT | Severe Thunderstorm Warning | JAX | Marion | 32 min |
| Aug 18, 5:57 PM EDT | Areal Flood Advisory | JAX | Marion | 3 hr |
| Aug 18, 6:13 PM EDT | Special Weather Statement | JAX | Marion | 32 min |
| Aug 18, 6:42 PM EDT | Special Weather Statement | JAX | Marion | 33 min |
| Aug 18, 7:12 PM EDT | Special Weather Statement | JAX | Marion | 33 min |
| Aug 18, 7:58 PM EDT | Special Weather Statement | JAX | Gilchrist | 32 min |
| Aug 18, 3:09 PM EDT | Special Weather Statement | JAX | Echols | 36 min |
| Aug 18, 5:05 PM EDT | Areal Flood Advisory | JAX | Camden | 115 min |
Nearby
Flash Flood Warnings in Florida, 2025Every flash flood warning in 2025
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.