Alert archive / Florida / Tornado Warnings in 2011

Tornado Warning 9, NWS Jacksonville, FL

March 30, 2011Baker County, Columbia County, Union County, Florida; Charlton County, Georgia

NWS Jacksonville, FL issued this tornado warning at Mar 30, 2011, 3:27 PM EDT for Baker County, Columbia County, Union County, Florida; Charlton County, Georgia. It was in force for 48 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: Mar 30, 2011, 3:27 PM EDT (19:27 UTC)
Expired: Mar 30, 2011, 4:15 PM EDT
In force: 48 min
Issued by: NWS Jacksonville, FL
Area: Storm-based polygon

Counties Baker County, FL, Columbia County, FL, Union County, FL, Charlton County, GA

The radar

The Jacksonville radar (KJAX), 67 km from the middle of the area, began a volume at 19:31 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
Mar 30, 11:10 AM EDT	Tornado Watch	SPC	8 hr

The nearest sounding before it

Jacksonville, FL (KJAX), launched 12:00Z, 7.5 hours before the alert went out and 68 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: 559 J/kg
Mixed-layer CIN: -89 J/kg
Mixed-layer LCL: 569 m above ground
0-6 km bulk shear: 45 kt
0-1 km storm-relative helicity: 222 m²/s²
0-3 km storm-relative helicity: 277 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 3.9

Open this sounding in Storm Lab

The text

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

899 
WFUS52 KJAX 301927
TORJAX
FLC003-023-125-GAC049-302015-
/O.NEW.KJAX.TO.W.0009.110330T1927Z-110330T2015Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE JACKSONVILLE FL
327 PM EDT WED MAR 30 2011

THE NATIONAL WEATHER SERVICE IN JACKSONVILLE HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHERN UNION COUNTY IN NORTHERN FLORIDA
  BAKER COUNTY IN NORTHEAST FLORIDA
  CENTRAL COLUMBIA COUNTY IN NORTHERN FLORIDA
  SOUTHERN CHARLTON COUNTY IN SOUTHEAST GEORGIA

* UNTIL 415 PM EDT

* AT 327 PM EDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE
  TRACKING A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO NEAR
  COLUMBIA...OR NEAR LAKE CITY...MOVING EAST AT 45 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  WINFIELD...LAKE CITY...WATERTOWN...LULU...OLUSTEE...SANDERSON...
  TAYLOR AND MACCLENNY.

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.

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.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 800 PM EDT WEDNESDAY EVENING
FOR NORTHEASTERN FLORIDA.

&&

LAT...LON 3061 8206 3014 8205 3014 8214 3008 8217
      3001 8272 3020 8279 3023 8279
TIME...MOT...LOC 1927Z 249DEG 38KT 3013 8264

$$

HESS

3 follow-up statements

379 
WWUS52 KJAX 301950
SVSJAX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
350 PM EDT WED MAR 30 2011

FLC023-302000-
/O.CAN.KJAX.TO.W.0009.000000T0000Z-110330T2015Z/
COLUMBIA FL-
350 PM EDT WED MAR 30 2011

...THE TORNADO WARNING FOR CENTRAL COLUMBIA COUNTY IS CANCELLED...

A TORNADO WATCH REMAINS IN EFFECT UNTIL 800 PM EDT WEDNESDAY EVENING
FOR NORTHEASTERN FLORIDA.

LAT...LON 3045 8237 3061 8206 3014 8205 3014 8214
      3008 8217 3004 8242 3027 8246 3031 8246
TIME...MOT...LOC 1950Z 249DEG 38KT 3022 8238

$$

FLC003-125-GAC049-302015-
/O.CON.KJAX.TO.W.0009.000000T0000Z-110330T2015Z/
UNION FL-BAKER FL-CHARLTON GA-
350 PM EDT WED MAR 30 2011

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 415 PM EDT FOR SOUTHERN
CHARLTON...BAKER AND NORTHEASTERN UNION COUNTIES...

AT 350 PM EDT...WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A
SEVERE THUNDERSTORM WITH STRONG ROTATION.  THIS TORNADO WAS LOCATED
NEAR OLUSTEE...OR 13 MILES NORTH OF LAKE BUTLER...MOVING EAST AT 45
MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
SANDERSON...ELLERBEE...TAYLOR...GLEN SAINT MARY AND MACCLENNY.

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.

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.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 800 PM EDT WEDNESDAY EVENING
FOR NORTHEASTERN FLORIDA.

&&

LAT...LON 3045 8237 3061 8206 3014 8205 3014 8214
      3008 8217 3004 8242 3027 8246 3031 8246
TIME...MOT...LOC 1950Z 249DEG 38KT 3022 8238

$$

HESS

306 
WWUS52 KJAX 302000
SVSJAX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
400 PM EDT WED MAR 30 2011

GAC049-302010-
/O.CAN.KJAX.TO.W.0009.000000T0000Z-110330T2015Z/
CHARLTON GA-
400 PM EDT WED MAR 30 2011

...THE TORNADO WARNING FOR SOUTHERN CHARLTON COUNTY IS CANCELLED...

A TORNADO WATCH REMAINS IN EFFECT UNTIL 800 PM EDT WEDNESDAY EVENING
FOR NORTHEASTERN FLORIDA.

LAT...LON 3036 8230 3040 8220 3036 8217 3037 8211
      3036 8206 3014 8205 3014 8214 3008 8217
      3005 8236 3028 8240
TIME...MOT...LOC 2000Z 260DEG 39KT 3019 8222

$$

FLC003-125-302015-
/O.CON.KJAX.TO.W.0009.000000T0000Z-110330T2015Z/
UNION FL-BAKER FL-
400 PM EDT WED MAR 30 2011

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 415 PM EDT FOR SOUTHERN
BAKER AND NORTHEASTERN UNION COUNTIES...

AT 400 PM EDT...WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A
SEVERE THUNDERSTORM WITH STRONG ROTATION.  THIS TORNADO WAS LOCATED
NEAR SANDERSON...OR 9 MILES NORTH OF RAIFORD...MOVING EAST AT 45 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO GLEN
SAINT MARY AND MACCLENNY.

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.

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.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 800 PM EDT WEDNESDAY EVENING
FOR NORTHEASTERN FLORIDA.

&&

LAT...LON 3036 8230 3040 8220 3036 8217 3037 8211
      3036 8206 3014 8205 3014 8214 3008 8217
      3005 8236 3028 8240
TIME...MOT...LOC 2000Z 260DEG 39KT 3019 8222

$$

HESS

227 
WWUS52 KJAX 302016
SVSJAX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
416 PM EDT WED MAR 30 2011

FLC003-125-302026-
/O.EXP.KJAX.TO.W.0009.000000T0000Z-110330T2015Z/
UNION FL-BAKER FL-
416 PM EDT WED MAR 30 2011

...THE TORNADO WARNING FOR SOUTHERN BAKER AND NORTHEASTERN UNION
COUNTIES HAS EXPIRED...

ALTHOUGH THE WARNING IS NO LONGER IN EFFECT...GUSTY WINDS OF 45 TO 
55 MPH CAN BE EXPECTED ALONG WITH POSSIBLE MINOR DAMAGE.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 800 PM EDT WEDNESDAY EVENING
FOR NORTHEASTERN FLORIDA.

LAT...LON 3036 8230 3040 8220 3036 8217 3037 8211
      3036 8206 3014 8205 3014 8214 3008 8217
      3005 8236 3028 8240
TIME...MOT...LOC 2000Z 260DEG 39KT 3019 8222

$$

HESS

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 30, 2:17 PM EDT	Special Marine Warning	JAX		118 min
Mar 30, 2:42 PM EDT	Special Weather Statement	JAX	Columbia, Gilchrist	63 min
Mar 30, 2:52 PM EDT	Tornado Warning	JAX	Columbia, Suwannee	38 min
Mar 30, 3:23 PM EDT	Special Weather Statement	JAX	Alachua, Marion	52 min
Mar 30, 3:47 PM EDT	Tornado Warning	JAX	Marion	58 min
Mar 30, 4:02 PM EDT	Special Marine Warning	JAX		118 min
Mar 30, 4:06 PM EDT	Tornado Warning	JAX	Flagler, Putnam, Saint Johns	39 min
Mar 30, 4:06 PM EDT	Tornado Warning	JAX	Bradford, Clay, Duval, Nassau, Saint Johns	54 min
Mar 30, 4:15 PM EDT	Special Marine Warning	JAX		2 hr
Mar 30, 4:37 PM EDT	Tornado Warning	JAX	Flagler	23 min
Mar 30, 6:33 AM EDT	Special Weather Statement	JAX	Camden	42 min
Mar 30, 6:34 AM EDT	Special Weather Statement	JAX	Jeff Davis	26 min
Mar 30, 8:07 AM EDT	Special Weather Statement	JAX	Appling	23 min
Mar 30, 9:50 AM EDT	Special Weather Statement	JAX	Atkinson, Clinch, Ware	25 min
Mar 30, 11:05 AM EDT	Special Weather Statement	JAX	Atkinson	40 min
Mar 30, 11:30 AM EDT	Special Weather Statement	JAX	Brantley, Pierce	45 min
Mar 30, 12:19 PM EDT	Special Weather Statement	JAX	Clinch, Echols	41 min
Mar 30, 1:50 PM EDT	Special Weather Statement	JAX	Camden	40 min

Nearby

Tornado Warnings in Florida, 2011 Tornado Warnings in Georgia, 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.