Alert archive / Florida / Tornado Warnings in 2011

Tornado Warning 1, NWS Jacksonville, FL

January 25, 2011Clay County, Duval County, Saint Johns County, Florida

NWS Jacksonville, FL issued this tornado warning at Jan 25, 2011, 4:10 PM EST for Clay County, Duval County, Saint Johns County, Florida. It was in force for 50 min. 1 report 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: Jan 25, 2011, 4:10 PM EST (21:10 UTC)
Expired: Jan 25, 2011, 5:00 PM EST
In force: 50 min
Issued by: NWS Jacksonville, FL
Area: Storm-based polygon

Counties Clay County, FL, Duval County, FL, Saint Johns County, FL

The radar

The Jacksonville radar (KJAX), 25 km from the middle of the area, began a volume at 21:12 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.

What was reported inside it

Time	Report	Where	Remark
Jan 25, 4:27 PM EST	HAIL 0.25	Arlington, FL	A STORM SPOTTER REPORTED PEA SIZED HAIL IN ARLINGTON.

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

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jan 25, 2:07 PM EST	Tornado Watch	SPC	7 hr

The nearest sounding before it

Jacksonville, FL (KJAX), launched 12:00Z, 9.2 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.

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: 16 J/kg
Mixed-layer CIN: -48 J/kg
Mixed-layer LCL: 606 m above ground
0-6 km bulk shear: 61 kt
0-1 km storm-relative helicity: 189 m²/s²
0-3 km storm-relative helicity: 281 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.

583 
WFUS52 KJAX 252110
TORJAX
FLC019-031-109-252200-
/O.NEW.KJAX.TO.W.0001.110125T2110Z-110125T2200Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE JACKSONVILLE FL
410 PM EST TUE JAN 25 2011

THE NATIONAL WEATHER SERVICE IN JACKSONVILLE HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHEASTERN CLAY COUNTY IN NORTHEAST FLORIDA
  NORTHWESTERN ST. JOHNS COUNTY IN NORTHEAST FLORIDA
  EASTERN DUVAL COUNTY IN NORTHEAST FLORIDA

* UNTIL 500 PM EST

* AT 410 PM EST...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE
  TRACKING A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO      
  NEAR ORANGE PARK...MOVING NORTHEAST AT 25 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  MANDARIN...SAN MARCO...DOWNTOWN JACKSONVILLE...UNF...ARLINGTON...
  SAN PABLO...NEPTUNE BEACH...FORT CAROLINE...MAYPORT...TALBOT ISLAND
  AND LITTLE TALBOT ISLAND.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

HEAVY RAINFALL MAY OBSCURE THIS TORNADO. TAKE COVER NOW! IF YOU WAIT
TO SEE OR HEAR IT COMING...IT MAY BE TOO LATE TO GET TO A SAFE PLACE.

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 900 PM EST TUESDAY EVENING
FOR NORTHEASTERN FLORIDA.

&&

LAT...LON 3001 8164 3011 8181 3056 8151 3053 8147
      3051 8147 3050 8142 3049 8143 3047 8140
      3043 8140 3041 8141 3039 8138 3033 8139
      3030 8138
TIME...MOT...LOC 2110Z 214DEG 24KT 3014 8166

$$

HESS

4 follow-up statements

342 
WWUS52 KJAX 252117
SVSJAX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
417 PM EST TUE JAN 25 2011

FLC019-109-252127-
/O.CAN.KJAX.TO.W.0001.000000T0000Z-110125T2200Z/
CLAY FL-ST. JOHNS FL-
417 PM EST TUE JAN 25 2011

...THE TORNADO WARNING FOR NORTHWESTERN ST. JOHNS AND NORTHEASTERN
CLAY COUNTIES 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 900 PM EST TUESDAY EVENING
FOR NORTHEASTERN FLORIDA.

LAT...LON 3030 8138 3012 8154 3013 8159 3012 8167
      3017 8168 3019 8167 3019 8175 3056 8151
      3053 8147 3051 8147 3050 8142 3049 8143
      3047 8140 3041 8141 3039 8138
TIME...MOT...LOC 2117Z 214DEG 24KT 3020 8162

$$

FLC031-252200-
/O.CON.KJAX.TO.W.0001.000000T0000Z-110125T2200Z/
DUVAL FL-
417 PM EST TUE JAN 25 2011

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 500 PM EST FOR EASTERN
DUVAL COUNTY...

AT 417 PM EST...NATIONAL WEATHER SERVICE METEOROLOGISTS CONTINUED TO
TRACK A TORNADO.  THIS TORNADO WAS LOCATED NEAR MANDARIN...MOVING
NORTHEAST AT 30 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO SAN
MARCO...DOWNTOWN JACKSONVILLE...UNF...ARLINGTON...TALLYRAND...SAN
PABLO...NEPTUNE BEACH...FORT CAROLINE...MAYPORT...TALBOT ISLAND AND
LITTLE TALBOT ISLAND.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

HEAVY RAINFALL MAY OBSCURE THIS TORNADO. TAKE COVER NOW! IF YOU WAIT
TO SEE OR HEAR IT COMING...IT MAY BE TOO LATE TO GET TO A SAFE PLACE.

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 900 PM EST TUESDAY EVENING
FOR NORTHEASTERN FLORIDA.

&&

LAT...LON 3030 8138 3012 8154 3013 8159 3012 8167
      3017 8168 3019 8167 3019 8175 3056 8151
      3053 8147 3051 8147 3050 8142 3049 8143
      3047 8140 3041 8141 3039 8138
TIME...MOT...LOC 2117Z 214DEG 24KT 3020 8162

$$

HESS

971 
WWUS52 KJAX 252127
SVSJAX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
427 PM EST TUE JAN 25 2011

FLC031-252200-
/O.CON.KJAX.TO.W.0001.000000T0000Z-110125T2200Z/
DUVAL FL-
427 PM EST TUE JAN 25 2011

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 500 PM EST FOR EASTERN
DUVAL COUNTY...

AT 427 PM EST...WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A
SEVERE THUNDERSTORM WITH STRONG ROTATION.  THIS TORNADO WAS LOCATED
NEAR UNF...MOVING NORTHEAST AT 30 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO UNF...
ARLINGTON...TALLYRAND...SAN PABLO...NEPTUNE BEACH...FORT CAROLINE...
MAYPORT...TALBOT ISLAND AND LITTLE TALBOT ISLAND.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

HEAVY RAINFALL MAY OBSCURE THIS TORNADO. TAKE COVER NOW! IF YOU WAIT
TO SEE OR HEAR IT COMING...IT MAY BE TOO LATE TO GET TO A SAFE PLACE.

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 900 PM EST TUESDAY EVENING
FOR NORTHEASTERN FLORIDA.

&&

LAT...LON 3030 8138 3012 8154 3013 8159 3012 8167
      3017 8168 3019 8167 3019 8175 3056 8151
      3053 8147 3051 8147 3050 8142 3049 8143
      3047 8140 3041 8141 3039 8138
TIME...MOT...LOC 2127Z 214DEG 24KT 3026 8158

$$

HESS

906 
WWUS52 KJAX 252143
SVSJAX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
443 PM EST TUE JAN 25 2011

FLC031-252200-
/O.CON.KJAX.TO.W.0001.000000T0000Z-110125T2200Z/
DUVAL FL-
443 PM EST TUE JAN 25 2011

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 500 PM EST FOR EASTERN
DUVAL COUNTY...

AT 443 PM EST...WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A
SEVERE THUNDERSTORM WITH STRONG ROTATION.  THIS TORNADO WAS LOCATED
NEAR SAN PABLO...OR NEAR UNF...MOVING NORTHEAST AT 30 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
MAYPORT...LITTLE TALBOT ISLAND AND TALBOT ISLAND.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

HEAVY RAINFALL MAY OBSCURE THIS TORNADO. TAKE COVER NOW! IF YOU WAIT
TO SEE OR HEAR IT COMING...IT MAY BE TOO LATE TO GET TO A SAFE PLACE.

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 900 PM EST TUESDAY EVENING
FOR NORTHEASTERN FLORIDA.

&&

LAT...LON 3030 8138 3012 8154 3013 8159 3012 8167
      3017 8168 3019 8167 3019 8175 3056 8151
      3053 8147 3051 8147 3050 8142 3049 8143
      3047 8140 3041 8141 3039 8138
TIME...MOT...LOC 2143Z 228DEG 26KT 3035 8141

$$

HESS

339 
WWUS52 KJAX 252155
SVSJAX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
455 PM EST TUE JAN 25 2011

FLC031-252204-
/O.EXP.KJAX.TO.W.0001.000000T0000Z-110125T2200Z/
DUVAL FL-
455 PM EST TUE JAN 25 2011

...THE TORNADO WARNING FOR EASTERN DUVAL COUNTY WILL EXPIRE AT 500 PM
EST...

THE STORM WITH THE STRONG CIRCULATION WILL PUSH INTO THE ATLANTIC 
JUST EAST OF NEPTUNE BEACH.

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

A TORNADO WATCH REMAINS IN EFFECT UNTIL 900 PM EST TUESDAY EVENING
FOR NORTHEASTERN FLORIDA.

LAT...LON 3030 8138 3012 8154 3013 8159 3012 8167
      3017 8168 3019 8167 3019 8175 3056 8151
      3053 8147 3051 8147 3050 8142 3049 8143
      3047 8140 3041 8141 3039 8138
TIME...MOT...LOC 2154Z 228DEG 26KT 3040 8134

$$

HESS

The office that day

Everything else NWS Jacksonville, FL issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jan 25, 1:57 PM EST	Special Weather Statement	JAX	Gilchrist	33 min
Jan 25, 2:38 PM EST	Special Weather Statement	JAX	Gilchrist	22 min
Jan 25, 2:58 PM EST	Special Weather Statement	JAX	Columbia, Gilchrist	32 min
Jan 25, 3:24 PM EST	Special Weather Statement	JAX	Alachua, Baker, Bradford, Union	36 min
Jan 25, 3:44 PM EST	Areal Flood Advisory	JAX	Alachua, Baker, Bradford, Clay, Columbia, Duval and 3 more	91 min
Jan 25, 3:49 PM EST	Special Weather Statement	JAX	Alachua	26 min
Jan 25, 3:53 PM EST	Special Weather Statement	JAX	Bradford, Clay	37 min
Jan 25, 4:11 PM EST	Special Weather Statement	JAX	Marion	34 min
Jan 25, 4:15 PM EST	Tornado Warning	JAX	Alachua, Marion	30 min
Jan 25, 4:28 PM EST	Tornado Warning	JAX	Marion	47 min
Jan 25, 4:31 PM EST	Special Weather Statement	JAX	Saint Johns	44 min
Jan 25, 4:36 PM EST	Severe Thunderstorm Warning	JAX	Alachua, Marion, Putnam	39 min
Jan 25, 4:39 PM EST	Tornado Warning	JAX	Saint Johns	36 min
Jan 25, 4:41 PM EST	Areal Flood Advisory	JAX	Alachua, Marion, Putnam	94 min
Jan 25, 4:55 PM EST	Special Marine Warning	JAX		95 min
Jan 25, 5:01 PM EST	Special Weather Statement	JAX	Putnam, Saint Johns	44 min
Jan 25, 5:16 PM EST	Special Weather Statement	JAX	Flagler	44 min
Jan 25, 5:43 PM EST	Tornado Warning	JAX	Flagler	36 min
Jan 25, 6:30 PM EST	Special Marine Warning	JAX		60 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.