Alert archive / Florida / Tornado Warnings in 2023
Tornado Warning 15, NWS Jacksonville, FL
NWS Jacksonville, FL issued this tornado warning at Mar 18, 2023, 1:09 AM EDT for Columbia County, Hamilton County, Florida; Clinch County, Echols County, Georgia. It was in force for 22 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
- Mar 18, 2023, 1:09 AM EDT (05:09 UTC)
- Expired
- Mar 18, 2023, 1:31 AM EDT
- In force
- 22 min
- Issued by
- NWS Jacksonville, FL
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 0.75 in
Counties Columbia County, FL, Hamilton County, FL, Clinch County, GA, Echols County, GA
The radar
The Moody AFB radar (KVAX), 39 km from the middle of the area, began a volume at 05:10 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
Tallahassee Rgnl, FL (KTLH), launched 00:00Z, 5.2 hours before the alert went out and 146 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
- 286 J/kg
- Mixed-layer CIN
- -9 J/kg
- Mixed-layer LCL
- 558 m above ground
- 0-6 km bulk shear
- 52 kt
- 0-1 km storm-relative helicity
- 208 m²/s²
- 0-3 km storm-relative helicity
- 224 m²/s²
- Significant tornado parameter
- 0.3
- Supercell composite
- 1.5
What forecasters said that day
The local office's own words before this tornado warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Jacksonville, FL wrote its last area forecast discussion before this tornado warning went out at Mar 17, 8:50 PM EDT, 4 hours 19 minutes earlier.
Area forecast discussion, Mar 17, 8:50 PM EDT, 4 hours 19 minutes before
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Special weather statement, Mar 18, 12:02 AM EDT, 1 hour 7 minutes before
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</html>The office that day
Everything else NWS Jacksonville, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 18, 12:02 AM EDT | Special Weather Statement | JAX | Hamilton | 43 min |
| Mar 18, 12:19 AM EDT | Severe Thunderstorm Warning | JAX | Hamilton | 26 min |
| Mar 18, 12:39 AM EDT | Tornado Warning | JAX | Hamilton | 36 min |
| Mar 18, 2:31 AM EDT | Small Craft Advisory | JAX | 34 hr | |
| Mar 18, 8:38 AM EDT | Small Craft Advisory | JAX | 5 hr | |
| Mar 18, 1:54 PM EDT | Special Weather Statement | JAX | Saint Johns | 36 min |
Nearby
Tornado Warnings in Florida, 2023Tornado Warnings in Georgia, 2023Every tornado warning in 2023Tornadoes in 2023
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.