Alert archive / Florida / Tornado Warnings in 2007

Tornado Warning 21, NWS Jacksonville, FL

June 13, 2007Clay County, Duval County, Florida

NWS Jacksonville, FL issued this tornado warning at Jun 13, 2007, 1:50 PM EDT for Clay County, Duval County, Florida. It was in force for 40 min. 11 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
Jun 13, 2007, 1:50 PM EDT (17:50 UTC)
Expired
Jun 13, 2007, 2:30 PM EDT
In force
40 min
Issued by
NWS Jacksonville, FL
Area
Counties, with a storm outline in the text

Counties Clay County, FL, Duval County, FL

The radar

The Jacksonville radar (KJAX), 27 km from the middle of the area, began a volume at 17:50 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

TimeReportWhereRemark
Jun 13, 1:52 PM EDTHAIL 0.5Normandy, FLLANE AND NORMANDY BVLD
Jun 13, 1:58 PM EDTHAIL 13 Sw Normandy, FLHAIL UP TO ONE INCH OVER HERLONG AIRPORT ON THE WEST SIDE OF JACKSONVILLE.
Jun 13, 2:00 PM EDTTSTM WND GST 73Normandy, FL
Jun 13, 2:01 PM EDTTORNADO10 Wsw Unf, FLA TORNADO WAS OBSERVED BRIEFLY FROM THE FIFTH FLOOR OF AN OFFICE BUILDING AT INTERSECTION OF I-95 AND JTB BLVD.
Jun 13, 2:05 PM EDTHAIL 13 Sw Normandy, FLHAIL UP TO ONE INCH OVER HERLONG AIRPORT ON THE WEST SIDE OF JACKSONVILLE.
Jun 13, 2:24 PM EDTHAIL 0.5Orange Park, FL
Jun 13, 2:24 PM EDTHAIL 0.88W Jacksonville Heights, FLCRYSTAL SPRINGS ROAD AND WHITFIELD ROAD NEAR I-10 AND NORMANDY.
Jun 13, 2:30 PM EDTFUNNEL CLOUDNormandy, FLFUNNEL CLOUD HEADING SOUTH
Jun 13, 2:30 PM EDTHAIL 0.88Normandy, FL
Jun 13, 2:36 PM EDTHAIL 0.255 N Middleburg, FL
Jun 13, 2:40 PM EDTHAIL 0.2510 Sw Orange Park, FLBETWEEN ORANGE PARK AND MIDDLEBURG

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.

IssuedProductOfficeLasted
Jun 13, 11:29 AM EDTSevere Thunderstorm WatchSPC8 hr

The nearest sounding before it

Jacksonville, FL (KJAX), launched 12:00Z, 5.8 hours before the alert went out and 28 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-pSkew-T log-p diagram, Jacksonville, FL at 12:00Z on 2007-06-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1169 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Jacksonville, FL at 12:00Z on 2007-06-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -30 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
1169 J/kg
Mixed-layer CIN
-45 J/kg
Mixed-layer LCL
779 m above ground
0-6 km bulk shear
31 kt
0-1 km storm-relative helicity
-30 m²/s²
0-3 km storm-relative helicity
-11 m²/s²
Significant tornado parameter
-0.2
Supercell composite
-1.2

Open this sounding in Storm Lab

The text

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

000 
WFUS52 KJAX 131751
TORJAX
FLC019-031-131830-
/O.NEW.KJAX.TO.W.0021.070613T1750Z-070613T1830Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE JACKSONVILLE FL
150 PM EDT WED JUN 13 2007

THE NATIONAL WEATHER SERVICE IN JACKSONVILLE HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHERN CLAY COUNTY IN NORTHEAST FLORIDA
  SOUTHERN DUVAL COUNTY IN NORTHEAST FLORIDA

* UNTIL 230 PM EDT

* AT 146 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO NEAR NORMANDY...
  OR ABOUT 7 MILES WEST OF DOWNTOWN JACKSONVILLE...MOVING SOUTH AT 20
  MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  ORANGE PARK...LAKESIDE AND DOCTORS INLET.

THE STORM HAS A HISTORY OF LARGE HAIL AND STRONG WINDS. SPOTTERS HAVE
REPORTED CLOUD ROTATION WITH THIS STORM.

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...OR YOU CAN CALL THE NATIONAL
WEATHER SERVICE IN JACKSONVILLE DIRECTLY AT 800-499-1594 TO REPORT
SEVERE WEATHER.

LAT...LON 3037 8162 3040 8186 3007 8205 3005 8170

$$

WOLF
2 follow-up statements
000 
WWUS52 KJAX 131809
SVSJAX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
208 PM EDT WED JUN 13 2007

FLC019-031-131830-
/O.CON.KJAX.TO.W.0021.000000T0000Z-070613T1830Z/
CLAY FL-DUVAL FL-
208 PM EDT WED JUN 13 2007

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 230 PM EDT FOR
SOUTHERN DUVAL AND NORTHERN CLAY COUNTIES...

AT 203 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO...  
LOCATED NEAR JACKSONVILLE HEIGHTS...MOVING SOUTH AT 20 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
BELLAIR...ORANGE PARK...LAKESIDE AND DOCTORS INLET.

THIS STORM HAS A HISTORY OF LARGE HAIL...STRONG WINDS...AND CLOUD
ROTATION. A BRIEF TORNADO COULD DEVELOP AT ANY TIME. 

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...OR YOU CAN CALL THE NATIONAL
WEATHER SERVICE IN JACKSONVILLE DIRECTLY AT 800-499-1594 TO REPORT
SEVERE WEATHER.

LAT...LON 3037 8162 3040 8186 3007 8205 3005 8170

$$

WOLF
000 
WWUS52 KJAX 131823
SVSJAX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
223 PM EDT WED JUN 13 2007

FLC019-031-131833-
/O.EXP.KJAX.TO.W.0021.000000T0000Z-070613T1830Z/
CLAY FL-DUVAL FL-
223 PM EDT WED JUN 13 2007

...THE TORNADO WARNING FOR SOUTHERN DUVAL AND NORTHERN CLAY
COUNTIES EXPIRES AT 230 PM EDT...

REPORT SEVERE WEATHER OR DAMAGE TO THE NEAREST LAW ENFORCEMENT AGENCY
OR YOUR COUNTY EMERGENCY MANAGEMENT...OR YOU CAN CALL THE NATIONAL
WEATHER SERVICE IN JACKSONVILLE DIRECTLY AT 800-499-1594 TO REPORT
SEVERE WEATHER.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 700 PM EDT
WEDNESDAY EVENING FOR NORTHEASTERN FLORIDA.

LAT...LON 3037 8162 3040 8186 3007 8205 3005 8170

$$
ZAPPE

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 13, 9:48 AM EDTSpecial Marine WarningJAX23 min
Jun 13, 11:59 AM EDTSpecial Marine WarningJAX2 hr
Jun 13, 12:23 PM EDTSevere Thunderstorm WarningJAXNassau52 min
Jun 13, 1:03 PM EDTSevere Thunderstorm WarningJAXNassau57 min
Jun 13, 1:04 PM EDTSevere Thunderstorm WarningJAXDuval56 min
Jun 13, 1:08 PM EDTSevere Thunderstorm WarningJAXPutnam67 min
Jun 13, 1:35 PM EDTSevere Thunderstorm WarningJAXColumbia, Union53 min
Jun 13, 1:57 PM EDTSevere Thunderstorm WarningJAXBaker63 min
Jun 13, 2:03 PM EDTSevere Thunderstorm WarningJAXMarion42 min
Jun 13, 2:09 PM EDTSpecial Marine WarningJAX2 hr
Jun 13, 2:14 PM EDTSevere Thunderstorm WarningJAXSaint Johns61 min
Jun 13, 2:26 PM EDTSevere Thunderstorm WarningJAXClay64 min
Jun 13, 2:47 PM EDTSevere Thunderstorm WarningJAXColumbia58 min
Jun 13, 3:14 PM EDTSevere Thunderstorm WarningJAXSaint Johns46 min
Jun 13, 4:13 PM EDTSevere Thunderstorm WarningJAXAlachua, Marion31 min
Jun 13, 4:30 PM EDTSevere Thunderstorm WarningJAXFlagler45 min
Jun 13, 5:04 PM EDTSpecial Marine WarningJAX56 min
Jun 13, 5:23 PM EDTSpecial Marine WarningJAX52 min

Nearby

Tornado Warnings in Florida, 2007Every tornado warning in 2007Tornadoes in 2007

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.