Alert archive / Florida / Tornado Warnings in 2017
Tornado Warning 75, NWS Jacksonville, FL
NWS Jacksonville, FL issued this tornado warning at Sep 10, 2017, 12:19 PM EDT for Flagler County, Saint Johns County, Florida. 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 outline as issued.
The facts
- Issued
- Sep 10, 2017, 12:19 PM EDT (16:19 UTC)
- Expired
- Sep 10, 2017, 12:41 PM EDT
- In force
- 22 min
- Issued by
- NWS Jacksonville, FL
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 0.0 in
Counties Flagler County, FL, Saint Johns County, FL
The radar
The Jacksonville radar (KJAX), 97 km from the middle of the area, began a volume at 16:24 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Sep 10, 12:02 PM EDT | Tornado Watch | SPC | 13 hr |
The nearest sounding before it
Jacksonville, FL (KJAX), launched 12:00Z, 4.3 hours before the alert went out and 99 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
- 396 J/kg
- Mixed-layer CIN
- 0 J/kg
- Mixed-layer LCL
- 476 m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- 226 m²/s²
- 0-3 km storm-relative helicity
- 297 m²/s²
- Significant tornado parameter
- 0.3
- Supercell composite
- 2.9
The text
As transmitted.
297
WFUS52 KJAX 101619
TORJAX
FLC035-109-101700-
/O.NEW.KJAX.TO.W.0075.170910T1619Z-170910T1700Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Jacksonville FL
1219 PM EDT SUN SEP 10 2017
The National Weather Service in Jacksonville has issued a
* Tornado Warning for...
North central Flagler County in northeastern Florida...
Southeastern St. Johns County in northeastern Florida...
* Until 100 PM EDT
* At 1219 PM EDT, a severe thunderstorm capable of producing a
tornado was located near Crescent Beach, or 11 miles northeast of
Palm Coast, moving west at 25 mph.
HAZARD...Tornado.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed.
Damage to roofs, windows, and vehicles will occur. Tree
damage is likely.
* This dangerous storm will be near...
Marineland around 1230 PM EDT.
Crescent Beach around 1235 PM EDT.
Other locations impacted by this tornadic thunderstorm include Dupont
Center.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to an interior room on the lowest floor of a
sturdy building. Avoid windows. If you are outdoors, in a mobile
home, or in a vehicle, move to the closest substantial shelter and
protect yourself from flying debris.
&&
LAT...LON 2958 8141 2976 8147 2981 8120 2964 8114
TIME...MOT...LOC 1619Z 076DEG 24KT 2973 8113
TORNADO...RADAR INDICATED
HAIL...0.00IN
$$
TW1 follow-up statement
147
WWUS52 KJAX 101641
SVSJAX
Severe Weather Statement
National Weather Service Jacksonville FL
1241 PM EDT SUN SEP 10 2017
FLC035-109-101650-
/O.CAN.KJAX.TO.W.0075.000000T0000Z-170910T1700Z/
Flagler FL-St. Johns FL-
1241 PM EDT SUN SEP 10 2017
...THE TORNADO WARNING FOR NORTH CENTRAL FLAGLER AND SOUTHEASTERN ST.
JOHNS COUNTIES IS CANCELLED...
The storm which prompted the warning has weakened below severe
limits, and no longer appears capable of producing a tornado.
Therefore the warning has been cancelled.
A tornado watch remains in effect until midnight EDT for northeastern
Florida.
LAT...LON 2958 8141 2976 8147 2981 8120 2964 8114
TIME...MOT...LOC 1639Z 076DEG 24KT 2969 8129
$$
TWThe office that day
Everything else NWS Jacksonville, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 9, 9:25 PM EDT | River Flood Warning | JAX | Clay | 5 days |
| Sep 9, 9:27 PM EDT | River Flood Warning | JAX | Baker, Nassau | 16 days |
| Sep 9, 9:39 PM EDT | River Flood Warning | JAX | Alachua, Columbia, Gilchrist | 32 days |
| Sep 9, 9:42 PM EDT | River Flood Warning | JAX | Clay | 5 days |
| Sep 10, 5:10 AM EDT | Special Marine Warning | JAX | 65 min | |
| Sep 10, 6:18 AM EDT | Areal Flood Warning | JAX | Baker, Bradford, Clay, Duval, Saint Johns | 6 hr |
| Sep 10, 8:14 AM EDT | Areal Flood Warning | JAX | Clay, Putnam | 3 hr |
| Sep 10, 9:11 AM EDT | Areal Flood Warning | JAX | Alachua, Bradford, Clay, Columbia, Gilchrist, Union | 3 hr |
| Sep 10, 9:59 AM EDT | River Flood Warning | JAX | Columbia, Hamilton, Suwannee | 3 days |
| Sep 10, 9:59 AM EDT | River Flood Warning | JAX | Hamilton, Suwannee | 5 days |
| Sep 10, 10:12 AM EDT | Areal Flood Warning | JAX | Alachua, Flagler, Marion, Putnam | 3 hr |
| Sep 10, 11:57 AM EDT | Areal Flood Warning | JAX | Alachua, Bradford, Clay, Flagler, Putnam, Saint Johns | 3 hr |
| Sep 10, 12:05 PM EDT | Special Marine Warning | JAX | 25 min | |
| Sep 10, 12:09 PM EDT | Areal Flood Warning | JAX | Clay, Duval, Nassau, Saint Johns | 3 hr |
| Sep 10, 1:11 PM EDT | Areal Flood Warning | JAX | Nassau | 3 hr |
| Sep 10, 1:28 PM EDT | Tornado Warning | JAX | Flagler | 32 min |
| Sep 10, 3:09 PM EDT | Areal Flood Warning | JAX | Flagler, Putnam | 3 hr |
| Sep 10, 4:11 PM EDT | Areal Flood Warning | JAX | Nassau | 3 hr |
| Sep 10, 4:39 PM EDT | Areal Flood Warning | JAX | Clay, Duval, Saint Johns | 3 hr |
| Sep 10, 4:39 PM EDT | Tornado Warning | JAX | Saint Johns | 24 min |
| Sep 10, 4:58 PM EDT | Areal Flood Warning | JAX | Duval, Nassau, Saint Johns | 3 hr |
| Sep 10, 5:21 PM EDT | Areal Flood Warning | JAX | Clay, Flagler, Putnam, Saint Johns | 3 hr |
| Sep 10, 5:43 PM EDT | Areal Flood Warning | JAX | Duval, Nassau | 3 hr |
| Sep 10, 5:48 PM EDT | Areal Flood Warning | JAX | Flagler, Putnam | 3 hr |
| Sep 10, 7:36 PM EDT | Tornado Warning | JAX | Flagler | 24 min |
| Sep 10, 7:42 PM EDT | Tornado Warning | JAX | Saint Johns | 33 min |
| Sep 10, 7:59 PM EDT | Areal Flood Warning | JAX | Nassau | 3 hr |
Nearby
Tornado Warnings in Florida, 2017Every tornado warning in 2017Tornadoes in 2017
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.