Alert archive / Florida / Severe Thunderstorm Warnings in 2022
Severe Thunderstorm Warning 201, NWS Jacksonville, FL
NWS Jacksonville, FL issued this severe thunderstorm warning at Aug 11, 2022, 12:46 PM EDT for Duval County, Nassau County, Florida. It was in force for 29 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 11, 2022, 12:46 PM EDT (16:46 UTC)
- Expired
- Aug 11, 2022, 1:15 PM EDT
- In force
- 29 min
- Issued by
- NWS Jacksonville, FL
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Duval County, FL, Nassau County, FL
The radar
The Jacksonville radar (KJAX), 1 km from the middle of the area, began a volume at 16:48 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
Cape Canaveral, FL (KXMR), launched 12:00Z, 4.8 hours before the alert went out and 252 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
- 2405 J/kg
- Mixed-layer CIN
- -19 J/kg
- Mixed-layer LCL
- 937 m above ground
- 0-6 km bulk shear
- 3 kt
- 0-1 km storm-relative helicity
- -3 m²/s²
- 0-3 km storm-relative helicity
- -16 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 10, 8:04 PM EDT | Special Weather Statement | JAX | Putnam | 41 min |
| Aug 11, 9:18 AM EDT | Special Weather Statement | JAX | Gilchrist | 27 min |
| Aug 11, 9:50 AM EDT | Special Weather Statement | JAX | Gilchrist | 25 min |
| Aug 11, 10:02 AM EDT | Special Weather Statement | JAX | Suwannee | 28 min |
| Aug 11, 11:19 AM EDT | Special Weather Statement | JAX | Baker | 41 min |
| Aug 11, 12:04 PM EDT | Special Weather Statement | JAX | Duval | 26 min |
| Aug 11, 12:12 PM EDT | Special Weather Statement | JAX | Clay, Putnam | 33 min |
| Aug 11, 12:41 PM EDT | Special Weather Statement | JAX | Duval, Nassau | 34 min |
| Aug 11, 12:43 PM EDT | Special Weather Statement | JAX | Putnam | 32 min |
| Aug 11, 12:56 PM EDT | Special Weather Statement | JAX | Duval, Flagler, Saint Johns | 64 min |
| Aug 11, 1:09 PM EDT | Special Marine Warning | JAX | 2 hr | |
| Aug 11, 1:11 PM EDT | Severe Thunderstorm Warning | JAX | Duval | 18 min |
| Aug 11, 1:40 PM EDT | Special Marine Warning | JAX | 2 hr | |
| Aug 11, 2:16 PM EDT | Special Weather Statement | JAX | Saint Johns | 44 min |
| Aug 11, 2:32 PM EDT | Special Marine Warning | JAX | 58 min | |
| Aug 11, 2:41 PM EDT | Special Marine Warning | JAX | 64 min | |
| Aug 11, 2:49 PM EDT | Special Weather Statement | JAX | Flagler | 41 min |
| Aug 11, 3:24 PM EDT | Special Marine Warning | JAX | 51 min | |
| Aug 11, 11:23 AM EDT | Special Weather Statement | JAX | Clinch, Echols | 52 min |
| Aug 11, 12:01 PM EDT | Special Weather Statement | JAX | Ware | 44 min |
| Aug 11, 12:24 PM EDT | Special Weather Statement | JAX | Atkinson | 36 min |
| Aug 11, 12:32 PM EDT | Severe Thunderstorm Warning | JAX | Atkinson, Clinch, Coffee, Ware | 28 min |
| Aug 11, 12:47 PM EDT | Severe Thunderstorm Warning | JAX | Bacon, Coffee, Pierce, Ware | 28 min |
| Aug 11, 1:02 PM EDT | Special Weather Statement | JAX | Pierce | 28 min |
| Aug 11, 1:10 PM EDT | Special Weather Statement | JAX | Bacon | 35 min |
| Aug 11, 1:25 PM EDT | Special Weather Statement | JAX | Wayne | 50 min |
| Aug 11, 1:36 PM EDT | Special Weather Statement | JAX | Coffee | 24 min |
| Aug 11, 1:49 PM EDT | Special Weather Statement | JAX | Appling | 26 min |
| Aug 11, 1:51 PM EDT | Special Weather Statement | JAX | Camden, Glynn | 39 min |
| Aug 11, 2:37 PM EDT | Special Weather Statement | JAX | Glynn | 38 min |
Nearby
Severe Thunderstorm Warnings in Florida, 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.