Alert archive / Florida / Tornado Warnings in 2011

Tornado Warning 21, NWS Jacksonville, FL

October 10, 20114 counties in Florida

NWS Jacksonville, FL issued this tornado warning at Oct 10, 2011, 3:11 AM EDT for 4 counties in Florida. It was in force for 31 min. 3 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Oct 10, 2011, 3:11 AM EDT (07:11 UTC)
Expired: Oct 10, 2011, 3:42 AM EDT
In force: 31 min
Issued by: NWS Jacksonville, FL
Area: Storm-based polygon

Counties Baker County, FL, Bradford County, FL, Clay County, FL, Union County, FL

The radar

The Jacksonville radar (KJAX), 51 km from the middle of the area, began a volume at 07:13 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
Oct 10, 3:15 AM EDT	TORNADO 1	5 W Fruit Cove, FL	EF-1 TORNADO DAMAGE AT 5917 ORCHARD POND DR ON FLEMING ISLAND. HOME DAMAGED WITH TREES BLOWN DOWN OR DAMAGED. ROOF/WALL WAS PULLED BACK ABOUT 1/8 OF AN INCH. SIDING AND FLASHING WERE RIPPED OFF THE HOUSE AND THE FENCE WAS COMPLETELY REMOVED WITH PIECES THROWN
Oct 10, 3:15 AM EDT	TORNADO	5 W Fruit Cove, FL	POSSIBLE TORNADO DAMAGE AT 5917 ORCHARD POND DR. ORANGE PARK/FLEMMING ISLAND. HOME DAMAGED WITH TREES BLOWN DOWN OR DAMAGED. ROOF/WALL WAS PULLED BACK ABOUT 1/8 OF AN INCH. SIDING AND FLASHING WERE RIPPED OFF THE HOUSE AND THE FENCE WAS COMPLETELY REMOVED WITH
Oct 10, 3:30 AM EDT	TSTM WND DMG	3 W Lawtey, FL	TREE LIMB WENT THROUGH A ROOF OF AN OCCUPIED RESIDENCE ON COUNTY ROAD 225 NEAR NW 51 LANE.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Jacksonville, FL (KJAX), launched 00:00Z, 7.2 hours before the alert went out and 53 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

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

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

160 
WFUS52 KJAX 100711
TORJAX
FLC003-007-019-125-100800-
/O.NEW.KJAX.TO.W.0021.111010T0711Z-111010T0800Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE JACKSONVILLE FL
311 AM EDT MON OCT 10 2011

THE NATIONAL WEATHER SERVICE IN JACKSONVILLE HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHERN CLAY COUNTY IN NORTHEAST FLORIDA
  NORTHERN BRADFORD COUNTY IN NORTHERN FLORIDA
  SOUTHERN BAKER COUNTY IN NORTHEAST FLORIDA
  UNION COUNTY IN NORTHERN FLORIDA

* UNTIL 400 AM EDT

* AT 311 AM EDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE
  TRACKING A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO NEAR
  DOCTORS INLET...OR NEAR LAKESIDE...MOVING WEST AT 45 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  MIDDLEBURG...RAIFORD...NEW RIVER AND LAKE BUTLER.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

&&

LAT...LON 2999 8167 2994 8244 3019 8244 3016 8170
      3007 8168 3002 8169 3001 8167
TIME...MOT...LOC 0711Z 088DEG 38KT 3008 8176

$$

TRABERT

2 follow-up statements

490 
WWUS52 KJAX 100725
SVSJAX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
325 AM EDT MON OCT 10 2011

FLC003-007-019-125-100800-
/O.CON.KJAX.TO.W.0021.000000T0000Z-111010T0800Z/
CLAY FL-BRADFORD FL-BAKER FL-UNION FL-
325 AM EDT MON OCT 10 2011

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 400 AM EDT FOR UNION...
SOUTHERN BAKER...NORTHERN BRADFORD AND NORTHWESTERN CLAY COUNTIES...

AT 325 AM EDT...NATIONAL WEATHER SERVICE METEOROLOGISTS CONTINUED TO
TRACK A TORNADO.  THIS TORNADO WAS LOCATED NEAR ASBURY LAKE...OR 6
MILES SOUTHWEST OF LAKESIDE...MOVING WEST AT 45 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
MIDDLEBURG...LAWTEY...ELLERBEE...RAIFORD...JOHNSTOWN...LAKE BUTLER
AND DUKES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

&&

LAT...LON 3000 8181 2995 8244 3019 8244 3019 8234
      3017 8182
TIME...MOT...LOC 0725Z 088DEG 38KT 3009 8189

$$

TRABERT

553 
WWUS52 KJAX 100742
SVSJAX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
342 AM EDT MON OCT 10 2011

FLC003-007-019-125-100752-
/O.CAN.KJAX.TO.W.0021.000000T0000Z-111010T0800Z/
CLAY FL-BRADFORD FL-BAKER FL-UNION FL-
342 AM EDT MON OCT 10 2011

...THE TORNADO WARNING FOR UNION...SOUTHERN BAKER...NORTHERN BRADFORD
AND NORTHWESTERN CLAY COUNTIES IS CANCELLED...

REPORT SEVERE WEATHER OR DAMAGE TO THE NEAREST LAW ENFORCEMENT AGENCY
OR YOUR COUNTY EMERGENCY MANAGEMENT.

LAT...LON 3000 8181 2995 8244 3019 8244 3019 8234
      3017 8182
TIME...MOT...LOC 0742Z 088DEG 38KT 3008 8210

$$

TRABERT

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, 3:36 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, 6:41 AM EDT	Tornado Warning	JAX	Nassau	23 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

Nearby

Tornado Warnings in Florida, 2011 Every tornado warning in 2011 Tornadoes 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.