Alert archive / Florida / Tornado Warnings in 2011
Tornado Warning 23, NWS Jacksonville, FL
NWS Jacksonville, FL issued this tornado warning at Oct 10, 2011, 6:41 AM EDT for Nassau County, Florida; Charlton County, Georgia. It was in force for 23 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
- Oct 10, 2011, 6:41 AM EDT (10:41 UTC)
- Expired
- Oct 10, 2011, 7:04 AM EDT
- In force
- 23 min
- Issued by
- NWS Jacksonville, FL
- Area
- Storm-based polygon
Counties Nassau County, FL, Charlton County, GA
The radar
The Jacksonville radar (KJAX), 26 km from the middle of the area, began a volume at 10:44 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 |
|---|---|---|---|
| Oct 10, 4:26 AM EDT | Tornado Watch | SPC | 9 hr |
The nearest sounding before it
Jacksonville, FL (KJAX), launched 00:00Z, 10.7 hours before the alert went out and 26 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
- 277 J/kg
- Mixed-layer CIN
- 0 J/kg
- Mixed-layer LCL
- 665 m above ground
- 0-6 km bulk shear
- 24 kt
- 0-1 km storm-relative helicity
- -74 m²/s²
- 0-3 km storm-relative helicity
- -46 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
286
WFUS52 KJAX 101041
TORJAX
FLC089-GAC049-101115-
/O.NEW.KJAX.TO.W.0023.111010T1041Z-111010T1115Z/
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE JACKSONVILLE FL
641 AM EDT MON OCT 10 2011
THE NATIONAL WEATHER SERVICE IN JACKSONVILLE HAS ISSUED A
* TORNADO WARNING FOR...
CENTRAL CHARLTON COUNTY IN SOUTHEAST GEORGIA
CENTRAL NASSAU COUNTY IN NORTHEAST FLORIDA
* UNTIL 715 AM EDT
* AT 641 AM EDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE
TRACKING A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO NEAR
RATLIFF...OR NEAR CALLAHAN...MOVING NORTHWEST AT 45 MPH.
* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO ST.
GEORGE.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
IN ADDITION TO THE TORNADO...THIS STORM IS CAPABLE OF PRODUCING
SIZE HAIL AND DESTRUCTIVE STRAIGHT LINE WINDS.
SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN INTERIOR
HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO COVER
YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS.
IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
SUBSTANTIAL SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE
NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.
REPORT SEVERE WEATHER OR DAMAGE TO THE NEAREST LAW ENFORCEMENT AGENCY
OR YOUR COUNTY EMERGENCY MANAGEMENT.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 100 PM EDT MONDAY AFTERNOON
FOR NORTHEASTERN FLORIDA AND SOUTHEAST GEORGIA.
&&
LAT...LON 3050 8178 3051 8179 3049 8180 3042 8189
3053 8224 3056 8223 3057 8221 3073 8217
3057 8175
TIME...MOT...LOC 1041Z 113DEG 41KT 3052 8191
$$
SANDRIK4 follow-up statements
714
WWUS52 KJAX 101050
SVSJAX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
650 AM EDT MON OCT 10 2011
FLC089-GAC049-101115-
/O.CON.KJAX.TO.W.0023.000000T0000Z-111010T1115Z/
CHARLTON GA-NASSAU FL-
650 AM EDT MON OCT 10 2011
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 715 AM EDT FOR WESTERN
NASSAU AND CENTRAL CHARLTON COUNTIES...
AT 650 AM EDT...NATIONAL WEATHER SERVICE METEOROLOGISTS CONTINUED TO
TRACK A TORNADO. THIS TORNADO WAS LOCATED NEAR ST. GEORGE...OR 10
MILES WEST OF CALLAHAN...MOVING NORTHWEST AT 45 MPH.
THE TORNADO WILL BE NEAR...
TOLEDO IN CHARLTON COUNTY AT 700 AM EDT
PRECAUTIONARY/PREPAREDNESS ACTIONS...
WHEN A TORNADO WARNING IS ISSUED BASED ON DOPPLER RADAR...IT MEANS
THAT STRONG ROTATION HAS BEEN DETECTED IN THE STORM. A TORNADO MAY
ALREADY BE ON THE GROUND...OR IS EXPECTED TO DEVELOP SHORTLY. IF YOU
ARE IN THE PATH OF THIS DANGEROUS STORM...MOVE INDOORS AND TO THE
LOWEST LEVEL OF THE BUILDING. STAY AWAY FROM WINDOWS. IF DRIVING...DO
NOT SEEK SHELTER UNDER A HIGHWAY OVERPASS.
SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN INTERIOR
HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO COVER
YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS.
IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
SUBSTANTIAL SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE
NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.
REPORT SEVERE WEATHER OR DAMAGE TO THE NEAREST LAW ENFORCEMENT AGENCY
OR YOUR COUNTY EMERGENCY MANAGEMENT.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 100 PM EDT MONDAY AFTERNOON
FOR NORTHEASTERN FLORIDA AND SOUTHEAST GEORGIA.
&&
LAT...LON 3045 8188 3053 8224 3056 8223 3057 8221
3073 8217 3060 8187 3050 8184
TIME...MOT...LOC 1050Z 113DEG 41KT 3056 8202
$$
SANDRIK189
WWUS52 KJAX 101058
SVSJAX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
658 AM EDT MON OCT 10 2011
FLC089-GAC049-101115-
/O.CON.KJAX.TO.W.0023.000000T0000Z-111010T1115Z/
CHARLTON GA-NASSAU FL-
658 AM EDT MON OCT 10 2011
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 715 AM EDT FOR WESTERN
NASSAU AND CENTRAL CHARLTON COUNTIES...
AT 659 AM EDT...NATIONAL WEATHER SERVICE METEOROLOGISTS CONTINUED TO
TRACK A TORNADO. THIS TORNADO WAS LOCATED NEAR ST. GEORGE...OR 9
MILES WEST OF CALLAHAN...MOVING NORTHWEST AT 35 MPH.
THE TORNADO WILL BE NEAR...
RURAL CENTRAL CHARLTON COUNTY AT 710 AM EDT
PRECAUTIONARY/PREPAREDNESS ACTIONS...
WHEN A TORNADO WARNING IS ISSUED BASED ON DOPPLER RADAR...IT MEANS
THAT STRONG ROTATION HAS BEEN DETECTED IN THE STORM. A TORNADO MAY
ALREADY BE ON THE GROUND...OR IS EXPECTED TO DEVELOP SHORTLY. IF YOU
ARE IN THE PATH OF THIS DANGEROUS STORM...MOVE INDOORS AND TO THE
LOWEST LEVEL OF THE BUILDING. STAY AWAY FROM WINDOWS. IF DRIVING...DO
NOT SEEK SHELTER UNDER A HIGHWAY OVERPASS.
REPORT SEVERE WEATHER OR DAMAGE TO THE NEAREST LAW ENFORCEMENT AGENCY
OR YOUR COUNTY EMERGENCY MANAGEMENT.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 100 PM EDT MONDAY AFTERNOON
FOR NORTHEASTERN FLORIDA AND SOUTHEAST GEORGIA.
&&
LAT...LON 3048 8193 3053 8224 3056 8223 3057 8221
3073 8217 3057 8191 3051 8188
TIME...MOT...LOC 1059Z 119DEG 31KT 3056 8203
$$
SANDRIK426
WWUS52 KJAX 101101
SVSJAX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
701 AM EDT MON OCT 10 2011
FLC089-101111-
/O.CAN.KJAX.TO.W.0023.000000T0000Z-111010T1115Z/
NASSAU FL-
701 AM EDT MON OCT 10 2011
...THE TORNADO WARNING FOR WESTERN NASSAU COUNTY IS CANCELLED...
REPORT SEVERE WEATHER OR DAMAGE TO THE NEAREST LAW ENFORCEMENT AGENCY
OR YOUR COUNTY EMERGENCY MANAGEMENT.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 100 PM EDT MONDAY AFTERNOON
FOR NORTHEASTERN FLORIDA AND SOUTHEAST GEORGIA.
LAT...LON 3073 8217 3062 8204 3055 8201 3050 8203
3053 8224 3056 8223 3057 8221
TIME...MOT...LOC 1101Z 119DEG 31KT 3059 8210
$$
GAC049-101115-
/O.CON.KJAX.TO.W.0023.000000T0000Z-111010T1115Z/
CHARLTON GA-
701 AM EDT MON OCT 10 2011
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 715 AM EDT FOR CENTRAL
CHARLTON COUNTY...
AT 701 AM EDT...WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A
SEVERE THUNDERSTORM WITH STRONG ROTATION. THIS TORNADO WAS LOCATED
NEAR ST. GEORGE...OR 11 MILES SOUTHWEST OF HILLIARD...MOVING
NORTHWEST AT 35 MPH.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
REPORT SEVERE WEATHER OR DAMAGE TO THE NEAREST LAW ENFORCEMENT AGENCY
OR YOUR COUNTY EMERGENCY MANAGEMENT.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 100 PM EDT MONDAY AFTERNOON
FOR NORTHEASTERN FLORIDA AND SOUTHEAST GEORGIA.
&&
LAT...LON 3073 8217 3062 8204 3055 8201 3050 8203
3053 8224 3056 8223 3057 8221
TIME...MOT...LOC 1101Z 119DEG 31KT 3059 8210
$$
SANDRIK434
WWUS52 KJAX 101104
SVSJAX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
704 AM EDT MON OCT 10 2011
GAC049-101114-
/O.CAN.KJAX.TO.W.0023.000000T0000Z-111010T1115Z/
CHARLTON GA-
704 AM EDT MON OCT 10 2011
...THE TORNADO WARNING FOR CENTRAL CHARLTON COUNTY IS CANCELLED...
REPORT SEVERE WEATHER OR DAMAGE TO THE NEAREST LAW ENFORCEMENT AGENCY
OR YOUR COUNTY EMERGENCY MANAGEMENT.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 100 PM EDT MONDAY AFTERNOON
FOR NORTHEASTERN FLORIDA AND SOUTHEAST GEORGIA.
LAT...LON 3073 8217 3062 8204 3055 8201 3050 8203
3053 8224 3056 8223 3057 8221
TIME...MOT...LOC 1104Z 119DEG 31KT 3060 8213
$$The office that day
Everything else NWS Jacksonville, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 9, 8:29 PM EDT | High Wind Warning | JAX | Flagler, Nassau | 8 hr |
| Oct 9, 8:29 PM EDT | Lake Wind Advisory | JAX | Baker, Bradford, Gilchrist, Suwannee, Union | 13 hr |
| Oct 9, 9:25 PM EDT | Gale Warning | JAX | 13 hr | |
| Oct 9, 9:25 PM EDT | Storm Warning | JAX | 7 hr | |
| Oct 9, 10:57 PM EDT | Special Weather Statement | JAX | Putnam | 48 min |
| Oct 9, 11:53 PM EDT | Special Weather Statement | JAX | Clay, Marion, Putnam | 37 min |
| Oct 10, 12:29 AM EDT | Special Weather Statement | JAX | Alachua, Bradford, Clay | 46 min |
| Oct 10, 1:19 AM EDT | Special Weather Statement | JAX | Clay, Putnam | 56 min |
| Oct 10, 1:59 AM EDT | Special Weather Statement | JAX | Alachua, Bradford, Union | 61 min |
| Oct 10, 2:36 AM EDT | Special Weather Statement | JAX | Bradford, Clay | 24 min |
| Oct 10, 2:51 AM EDT | Areal Flood Advisory | JAX | Alachua, Marion | 114 min |
| Oct 10, 3:11 AM EDT | Tornado Warning | JAX | Baker, Bradford, Clay, Union | 31 min |
| Oct 10, 3:36 AM EDT | Special Weather Statement | JAX | Marion | 39 min |
| Oct 10, 3:47 AM EDT | Special Weather Statement | JAX | Union | 28 min |
| Oct 10, 4:01 AM EDT | Special Weather Statement | JAX | Marion | 29 min |
| Oct 10, 4:15 AM EDT | Tornado Warning | JAX | Duval | 30 min |
| Oct 10, 4:37 AM EDT | Areal Flood Warning | JAX | Marion | 113 min |
| Oct 10, 4:46 AM EDT | Special Weather Statement | JAX | Nassau | 44 min |
| Oct 10, 4:49 AM EDT | Special Weather Statement | JAX | Bradford, Clay, Gilchrist, Union | 41 min |
| Oct 10, 5:24 AM EDT | Special Weather Statement | JAX | Alachua, Putnam | 51 min |
| Oct 10, 6:13 AM EDT | Special Weather Statement | JAX | Alachua, Baker, Bradford, Columbia, Gilchrist, Hamilton and 2 more | 62 min |
| Oct 10, 6:15 AM EDT | Special Weather Statement | JAX | Duval, Nassau | 60 min |
| Oct 10, 7:12 AM EDT | Special Weather Statement | JAX | Nassau | 48 min |
| Oct 10, 7:21 AM EDT | Special Weather Statement | JAX | Hamilton, Suwannee | 39 min |
| Oct 10, 7:23 AM EDT | Special Weather Statement | JAX | Gilchrist | 52 min |
| Oct 10, 8:38 AM EDT | Special Marine Warning | JAX | 97 min | |
| Oct 10, 8:41 AM EDT | Areal Flood Advisory | JAX | Gilchrist | 2 hr |
| Oct 10, 9:17 AM EDT | Lake Wind Advisory | JAX | Nassau | 3 hr |
| Oct 10, 10:04 AM EDT | Small Craft Advisory | JAX | 11 hr | |
| Oct 10, 12:27 PM EDT | Areal Flood Advisory | JAX | Suwannee | 2 hr |
| Oct 10, 2:16 PM EDT | Small Craft Advisory for Hazardous Seas | JAX | 32 hr | |
| Oct 10, 6:15 PM EDT | Areal Flood Advisory | JAX | Putnam | 90 min |
| Oct 10, 7:10 PM EDT | Special Weather Statement | JAX | Putnam | 50 min |
| Oct 10, 7:50 PM EDT | Areal Flood Advisory | JAX | Nassau | 115 min |
| Oct 10, 7:25 AM EDT | Special Weather Statement | JAX | Wayne | 50 min |
| Oct 10, 11:22 AM EDT | Special Weather Statement | JAX | Glynn | 23 min |
| Oct 10, 11:53 AM EDT | Lake Wind Advisory | JAX | Appling, Atkinson, Bacon, Brantley, Camden, Clinch and 6 more | 7 hr |
| Oct 10, 11:59 AM EDT | Special Weather Statement | JAX | Wayne | 46 min |
| Oct 10, 1:28 PM EDT | Special Weather Statement | JAX | Glynn | 32 min |
| Oct 10, 2:46 PM EDT | Special Weather Statement | JAX | Pierce | 29 min |
| Oct 10, 3:17 PM EDT | Special Weather Statement | JAX | Pierce | 28 min |
| Oct 10, 5:52 PM EDT | Special Weather Statement | JAX | Atkinson | 23 min |
| Oct 10, 6:07 PM EDT | Areal Flood Advisory | JAX | Atkinson, Clinch, Ware | 113 min |
| Oct 10, 6:47 PM EDT | Areal Flood Warning | JAX | Atkinson, Clinch, Ware | 3 hr |
| Oct 10, 7:04 PM EDT | Special Weather Statement | JAX | Atkinson, Ware | 56 min |
Nearby
Tornado Warnings in Florida, 2011Tornado Warnings in Georgia, 2011Every tornado warning in 2011Tornadoes in 2011
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.