Alert archive / Florida / Tornado Warnings in 2001
Tornado Warning 49, NWS Jacksonville, FL
NWS Jacksonville, FL issued this tornado warning at Sep 14, 2001, 2:31 PM EDT for Saint Johns County, Florida. It was in force for 14 min. 1 report came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Sep 14, 2001, 2:31 PM EDT (18:31 UTC)
- Expired
- Sep 14, 2001, 2:45 PM EDT
- In force
- 14 min
- Issued by
- NWS Jacksonville, FL
- Area
- Whole counties
County Saint Johns County, FL
The radar
The Jacksonville radar (KJAX), 70 km from the middle of the area, began a volume at 18:35 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Sep 14, 2:55 PM EDT | Tornado F0 | Summer Haven, FL | Weak F0 |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Sep 14, 11:00 AM EDT | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Jacksonville, FL (KJAX), launched 12:00Z, 6.5 hours before the alert went out and 71 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
- 256 J/kg
- Mixed-layer CIN
- -1 J/kg
- Mixed-layer LCL
- 567 m above ground
- 0-6 km bulk shear
- 6 kt
- 0-1 km storm-relative helicity
- -81 m²/s²
- 0-3 km storm-relative helicity
- -108 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.4
The text
As transmitted, in the capitals the NWS used until 2016.
785 WFUS52 KJAX 141831 TORJAX FLC109-141845- BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE JACKSONVILLE FL 231 PM EDT FRI SEP 14 2001 THE NATIONAL WEATHER SERVICE HAS ISSUED A * TORNADO WARNING FOR... SOUTHERN ST. JOHNS COUNTY IN NORTHEAST FLORIDA THIS INCLUDES HASTINGS... * UNTIL 245 PM EDT * AT 225 PM EDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A DEVELOPING TORNADO 5 MILES EAST OF HASTINGS...MOVING WEST AT 20 MPH. * SOME LOCATIONS NEAR THE PATH OF THE STORM THROUGH 245 PM EDT... HASTINGS... THIS IS A DANGEROUS STORM. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER. $$ HESS
The office that day
Everything else NWS Jacksonville, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 14, 11:31 AM EDT | Tornado Warning | JAX | Saint Johns | 44 min |
| Sep 14, 12:29 PM EDT | Tornado Warning | JAX | Flagler, Saint Johns | 46 min |
| Sep 14, 1:04 PM EDT | Tornado Warning | JAX | Flagler | 41 min |
| Sep 14, 1:50 PM EDT | Tornado Warning | JAX | Flagler, Saint Johns | 25 min |
| Sep 14, 5:19 PM EDT | Tornado Warning | JAX | Putnam | 26 min |
| Sep 14, 5:39 PM EDT | Tornado Warning | JAX | Saint Johns | 51 min |
| Sep 14, 6:33 PM EDT | Tornado Warning | JAX | Flagler | 42 min |
| Sep 14, 6:56 PM EDT | Tornado Warning | JAX | Putnam | 49 min |
Nearby
Tornado Warnings in Florida, 2001Every tornado warning in 2001Tornadoes in 2001
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.