Alert archive / Florida / Flash Flood Warnings in 2026
Flash Flood Warning 17, NWS Jacksonville, FL
NWS Jacksonville, FL issued this flash flood warning at Aug 20, 2026, 7:52 PM EDT for Suwannee County, Florida. It was in force for 73 min. 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 20, 2026, 7:52 PM EDT (23:52 UTC)
- Expired
- Aug 20, 2026, 9:05 PM EDT
- In force
- 73 min
- Issued by
- NWS Jacksonville, FL
- Area
- Storm-based polygon
- Flood severity
- None
County Suwannee County, FL
The radar
The Moody AFB radar (KVAX), 77 km from the middle of the area, began a volume at 23:53 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.
The nearest sounding before it
Tampa Bay, FL (KTBW), launched 12:00Z, 11.9 hours before the alert went out and 283 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
- 1463 J/kg
- Mixed-layer CIN
- -64 J/kg
- Mixed-layer LCL
- 1215 m above ground
- 0-6 km bulk shear
- 15 kt
- 0-1 km storm-relative helicity
- 8 m²/s²
- 0-3 km storm-relative helicity
- 11 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 19, 8:23 PM EDT | Severe Thunderstorm Warning | JAX | Baker, Bradford, Clay, Columbia, Duval, Union | 37 min |
| Aug 19, 8:34 PM EDT | Special Weather Statement | JAX | Alachua | 26 min |
| Aug 19, 8:51 PM EDT | Special Weather Statement | JAX | Hamilton | 24 min |
| Aug 19, 8:52 PM EDT | Special Weather Statement | JAX | Duval | 38 min |
| Aug 19, 8:58 PM EDT | Special Weather Statement | JAX | Marion | 32 min |
| Aug 19, 9:00 PM EDT | Special Weather Statement | JAX | Bradford, Union | 30 min |
| Aug 19, 9:09 PM EDT | Areal Flood Advisory | JAX | Baker, Bradford, Clay, Columbia, Union | 63 min |
| Aug 19, 9:32 PM EDT | Special Weather Statement | JAX | Clay | 28 min |
| Aug 19, 9:35 PM EDT | Special Weather Statement | JAX | Baker | 25 min |
| Aug 19, 9:44 PM EDT | Special Weather Statement | JAX | Marion | 31 min |
| Aug 19, 9:46 PM EDT | Special Weather Statement | JAX | Clay | 29 min |
| Aug 19, 10:00 PM EDT | Special Weather Statement | JAX | Baker | 30 min |
| Aug 19, 10:10 PM EDT | Special Weather Statement | JAX | Clay | 35 min |
| Aug 19, 10:35 PM EDT | Special Marine Warning | JAX | 55 min | |
| Aug 19, 10:40 PM EDT | Special Weather Statement | JAX | Duval | 35 min |
| Aug 19, 10:41 PM EDT | Special Weather Statement | JAX | Putnam | 34 min |
| Aug 19, 10:56 PM EDT | Areal Flood Advisory | JAX | Duval | 64 min |
| Aug 19, 10:59 PM EDT | Special Weather Statement | JAX | Duval | 31 min |
| Aug 19, 11:11 PM EDT | Special Weather Statement | JAX | Duval | 49 min |
| Aug 19, 11:13 PM EDT | Special Marine Warning | JAX | 62 min | |
| Aug 19, 11:31 PM EDT | Special Weather Statement | JAX | Marion | 29 min |
| Aug 19, 11:37 PM EDT | Special Weather Statement | JAX | Duval | 53 min |
| Aug 19, 11:46 PM EDT | Areal Flood Advisory | JAX | Duval, Saint Johns | 97 min |
| Aug 20, 12:10 AM EDT | Special Marine Warning | JAX | 65 min | |
| Aug 20, 12:30 PM EDT | Heat Advisory | JAX | Alachua, Baker, Bradford, Clay, Columbia, Duval and 8 more | 25 hr |
| Aug 20, 2:55 PM EDT | Special Weather Statement | JAX | Alachua | 35 min |
| Aug 20, 3:02 PM EDT | Special Weather Statement | JAX | Marion | 28 min |
| Aug 20, 3:12 PM EDT | Severe Thunderstorm Warning | JAX | Marion | 33 min |
| Aug 20, 3:15 PM EDT | Special Weather Statement | JAX | Marion | 30 min |
| Aug 20, 3:33 PM EDT | Special Weather Statement | JAX | Marion | 27 min |
| Aug 20, 3:37 PM EDT | Special Weather Statement | JAX | Putnam | 38 min |
| Aug 20, 3:46 PM EDT | Special Weather Statement | JAX | Marion | 44 min |
| Aug 20, 3:48 PM EDT | Special Weather Statement | JAX | Saint Johns | 27 min |
| Aug 20, 3:50 PM EDT | Severe Thunderstorm Warning | JAX | Saint Johns | 25 min |
| Aug 20, 4:00 PM EDT | Special Weather Statement | JAX | Putnam | 30 min |
| Aug 20, 4:06 PM EDT | Severe Thunderstorm Warning | JAX | Alachua | 39 min |
| Aug 20, 4:13 PM EDT | Severe Thunderstorm Warning | JAX | Alachua, Marion, Putnam | 47 min |
| Aug 20, 4:20 PM EDT | Special Weather Statement | JAX | Saint Johns | 25 min |
| Aug 20, 4:23 PM EDT | Special Weather Statement | JAX | Putnam | 37 min |
| Aug 20, 4:29 PM EDT | Severe Thunderstorm Warning | JAX | Flagler, Saint Johns | 46 min |
| Aug 20, 4:31 PM EDT | Areal Flood Advisory | JAX | Flagler, Saint Johns | 85 min |
| Aug 20, 4:31 PM EDT | Special Marine Warning | JAX | 59 min | |
| Aug 20, 4:33 PM EDT | Areal Flood Advisory | JAX | Alachua, Marion, Putnam | 83 min |
| Aug 20, 4:33 PM EDT | Special Weather Statement | JAX | Bradford | 27 min |
| Aug 20, 4:36 PM EDT | Severe Thunderstorm Warning | JAX | Clay, Putnam, Saint Johns | 54 min |
| Aug 20, 4:43 PM EDT | Special Weather Statement | JAX | Alachua | 32 min |
| Aug 20, 4:50 PM EDT | Severe Thunderstorm Warning | JAX | Alachua | 40 min |
| Aug 20, 4:51 PM EDT | Areal Flood Advisory | JAX | Clay, Putnam, Saint Johns | 76 min |
| Aug 20, 4:55 PM EDT | Severe Thunderstorm Warning | JAX | Alachua, Bradford, Union | 50 min |
| Aug 20, 4:59 PM EDT | Special Weather Statement | JAX | Clay | 31 min |
| Aug 20, 5:04 PM EDT | Special Weather Statement | JAX | Clay | 26 min |
| Aug 20, 5:15 PM EDT | Areal Flood Advisory | JAX | Alachua, Bradford, Clay, Putnam | 75 min |
| Aug 20, 5:28 PM EDT | Special Weather Statement | JAX | Clay, Duval | 47 min |
| Aug 20, 5:40 PM EDT | Special Weather Statement | JAX | Duval | 35 min |
| Aug 20, 5:47 PM EDT | Special Weather Statement | JAX | Union | 28 min |
| Aug 20, 5:53 PM EDT | Severe Thunderstorm Warning | JAX | Duval | 52 min |
| Aug 20, 5:58 PM EDT | Areal Flood Advisory | JAX | Clay, Duval, Saint Johns | 40 min |
| Aug 20, 5:58 PM EDT | Special Weather Statement | JAX | Baker | 32 min |
| Aug 20, 6:08 PM EDT | Special Weather Statement | JAX | Nassau | 22 min |
| Aug 20, 6:13 PM EDT | Areal Flood Advisory | JAX | Bradford, Union | 39 min |
| Aug 20, 6:16 PM EDT | Severe Thunderstorm Warning | JAX | Columbia | 44 min |
| Aug 20, 6:18 PM EDT | Severe Thunderstorm Warning | JAX | Baker, Columbia | 57 min |
| Aug 20, 6:24 PM EDT | Severe Thunderstorm Warning | JAX | Duval, Nassau | 51 min |
| Aug 20, 6:48 PM EDT | Special Weather Statement | JAX | Gilchrist | 27 min |
| Aug 20, 7:03 PM EDT | Areal Flood Advisory | JAX | Baker | 71 min |
| Aug 20, 7:05 PM EDT | Special Weather Statement | JAX | Columbia | 40 min |
| Aug 20, 7:08 PM EDT | Severe Thunderstorm Warning | JAX | Hamilton, Suwannee | 52 min |
| Aug 20, 7:12 PM EDT | Areal Flood Advisory | JAX | Columbia, Hamilton | 62 min |
| Aug 20, 7:31 PM EDT | Areal Flood Advisory | JAX | Suwannee | 119 min |
| Aug 20, 7:33 PM EDT | Special Weather Statement | JAX | Gilchrist | 27 min |
| Aug 20, 6:57 PM EDT | Special Weather Statement | JAX | Ware | 33 min |
| Aug 20, 6:59 PM EDT | Special Weather Statement | JAX | Camden | 31 min |
| Aug 20, 7:29 PM EDT | Special Weather Statement | JAX | Echols | 31 min |
| Aug 20, 7:36 PM EDT | Special Weather Statement | JAX | Clinch | 24 min |
| Aug 20, 7:42 PM EDT | Special Weather Statement | JAX | Ware | 33 min |
Nearby
Flash Flood Warnings in Florida, 2026Every flash flood warning in 2026
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.