Alert archive / Florida / Tornado Warnings in 2000
Tornado Warning 43, NWS Jacksonville, FL
NWS Jacksonville, FL issued this tornado warning at Aug 29, 2000, 4:11 AM EDT for Nassau County, Florida. It was in force for 34 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties.
The facts
- Issued
- Aug 29, 2000, 4:11 AM EDT (08:11 UTC)
- Expired
- Aug 29, 2000, 4:45 AM EDT
- In force
- 34 min
- Issued by
- NWS Jacksonville, FL
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
County Nassau County, FL
The radar
The Jacksonville radar (KJAX), 17 km from the middle of the area, began a volume at 08:12 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 00:00Z, 8.2 hours before the alert went out and 17 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
- 1755 J/kg
- Mixed-layer CIN
- -40 J/kg
- Mixed-layer LCL
- 1239 m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- 50 m²/s²
- 0-3 km storm-relative helicity
- 104 m²/s²
- Significant tornado parameter
- 0.4
- Supercell composite
- 2.6
The text
As transmitted, in the capitals the NWS used until 2016.
000 WFUS52 KJAX 290812 TORJAX FLC089-290845- BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE JACKSONVILLE FL 411 AM EDT TUE AUG 29 2000 THE NATIONAL WEATHER SERVICE IN JACKSONVILLE HAS ISSUED A * TORNADO WARNING FOR... SOUTHWESTERN NASSAU COUNTY IN NORTHEAST FLORIDA THIS INCLUDES CALLAHAN AND BRYCEVILLE... * UNTIL 445 AM EDT * AT 402 AM EDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 4 MILES WEST OF CALLAHAN...MOVING SOUTH AT 15 MPH. * THE TORNADO WILL BE NEAR... CALLAHAN BY 415 AM EDT... NASSAU VILLAGE-RATLIFF BY 420 AM EDT... BRYCEVILLE BY 445 AM EDT... REPORT SEVERE WEATHER OR DAMAGE TO THE NEAREST LAW ENFORCEMENT AGENCY OR YOUR COUNTY EMERGENCY MANAGEMENT. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN JACKSONVILLE. OR YOU CAN ALSO CALL THE NATIONAL WEATHER SERVICE IN JACKSONVILLE DIRECTLY AT 904-741-4370 TO REPORT SEVERE WEATHER. LAT...LON 3061 8178 3062 8199 3031 8203 3050 8178 $$ WELSH
The office that day
Everything else NWS Jacksonville, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 28, 10:31 PM EDT | Severe Thunderstorm Warning | JAX | Nassau | 44 min |
| Aug 29, 3:05 AM EDT | Severe Thunderstorm Warning | JAX | Hamilton | 55 min |
| Aug 29, 3:33 AM EDT | Severe Thunderstorm Warning | JAX | Nassau | 57 min |
| Aug 29, 5:04 AM EDT | Severe Thunderstorm Warning | JAX | Baker | 41 min |
| Aug 29, 6:09 AM EDT | Severe Thunderstorm Warning | JAX | Alachua | 36 min |
| Aug 29, 6:26 AM EDT | Severe Thunderstorm Warning | JAX | Putnam | 64 min |
Nearby
Tornado Warnings in Florida, 2000Every tornado warning in 2000Tornadoes in 2000
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.