Alert archive / Florida / Severe Thunderstorm Warnings in 2022
Severe Thunderstorm Warning 231, NWS Jacksonville, FL
NWS Jacksonville, FL issued this severe thunderstorm warning at Sep 1, 2022, 4:41 PM EDT for Nassau County, Florida; Camden County, Georgia. It was in force for 23 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
- Sep 1, 2022, 4:41 PM EDT (20:41 UTC)
- Expired
- Sep 1, 2022, 5:04 PM EDT
- In force
- 23 min
- Issued by
- NWS Jacksonville, FL
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Nassau County, FL, Camden County, GA
The radar
The Jacksonville radar (KJAX), 31 km from the middle of the area, began a volume at 20:44 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, 8.7 hours before the alert went out and 30 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
- 1694 J/kg
- Mixed-layer CIN
- -29 J/kg
- Mixed-layer LCL
- 817 m above ground
- 0-6 km bulk shear
- 12 kt
- 0-1 km storm-relative helicity
- 16 m²/s²
- 0-3 km storm-relative helicity
- 10 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 31, 8:25 PM EDT | Areal Flood Warning | JAX | Alachua, Marion, Putnam | 95 min |
| Sep 1, 2:38 PM EDT | Special Weather Statement | JAX | Marion | 52 min |
| Sep 1, 2:45 PM EDT | Special Weather Statement | JAX | Clay | 45 min |
| Sep 1, 2:48 PM EDT | Special Weather Statement | JAX | Duval | 27 min |
| Sep 1, 2:55 PM EDT | Special Weather Statement | JAX | Marion | 35 min |
| Sep 1, 3:04 PM EDT | Special Weather Statement | JAX | Duval | 26 min |
| Sep 1, 3:07 PM EDT | Severe Thunderstorm Warning | JAX | Marion | 9 min |
| Sep 1, 3:23 PM EDT | Special Weather Statement | JAX | Marion | 37 min |
| Sep 1, 3:29 PM EDT | Areal Flood Warning | JAX | Duval | 2 hr |
| Sep 1, 3:35 PM EDT | Special Weather Statement | JAX | Saint Johns | 25 min |
| Sep 1, 3:37 PM EDT | Special Weather Statement | JAX | Clay | 38 min |
| Sep 1, 3:39 PM EDT | Special Weather Statement | JAX | Duval | 51 min |
| Sep 1, 3:44 PM EDT | Special Weather Statement | JAX | Alachua | 31 min |
| Sep 1, 3:47 PM EDT | Special Weather Statement | JAX | Duval | 28 min |
| Sep 1, 4:02 PM EDT | Special Weather Statement | JAX | Clay | 28 min |
| Sep 1, 4:05 PM EDT | Special Weather Statement | JAX | Bradford | 25 min |
| Sep 1, 4:27 PM EDT | Special Weather Statement | JAX | Bradford | 48 min |
| Sep 1, 4:32 PM EDT | Special Weather Statement | JAX | Clay | 28 min |
| Sep 1, 4:35 PM EDT | Special Weather Statement | JAX | Nassau | 25 min |
| Sep 1, 4:39 PM EDT | Special Weather Statement | JAX | Marion | 36 min |
| Sep 1, 5:00 PM EDT | Special Weather Statement | JAX | Putnam | 60 min |
| Sep 1, 5:15 PM EDT | Special Weather Statement | JAX | Putnam | 30 min |
| Sep 1, 5:32 PM EDT | Special Weather Statement | JAX | Putnam | 28 min |
| Sep 1, 6:21 PM EDT | Special Weather Statement | JAX | Flagler | 24 min |
| Sep 1, 6:37 PM EDT | Special Weather Statement | JAX | Flagler | 38 min |
| Sep 1, 7:16 PM EDT | Special Marine Warning | JAX | 29 min | |
| Sep 1, 7:49 PM EDT | Special Marine Warning | JAX | 56 min | |
| Sep 1, 4:36 PM EDT | Special Weather Statement | JAX | Echols | 24 min |
| Sep 1, 5:12 PM EDT | Special Weather Statement | JAX | Camden | 33 min |
| Sep 1, 5:26 PM EDT | Special Weather Statement | JAX | Coffee | 34 min |
| Sep 1, 5:31 PM EDT | Special Weather Statement | JAX | Brantley | 29 min |
| Sep 1, 5:54 PM EDT | Special Weather Statement | JAX | Brantley, Camden, Glynn, Pierce | 51 min |
| Sep 1, 5:58 PM EDT | Special Weather Statement | JAX | Coffee | 32 min |
| Sep 1, 6:28 PM EDT | Special Weather Statement | JAX | Glynn, Wayne | 47 min |
| Sep 1, 7:31 PM EDT | Areal Flood Advisory | JAX | Wayne | 119 min |
Nearby
Severe Thunderstorm Warnings in Florida, 2022Severe Thunderstorm Warnings in Georgia, 2022Every severe thunderstorm warning in 2022
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.