Alert archive / Florida / Tornado Warnings in 2013

Tornado Warning 20, NWS Melbourne, FL

June 6, 2013Okeechobee County, Florida

NWS Melbourne, FL issued this tornado warning at Jun 6, 2013, 12:46 PM EDT for Okeechobee County, Florida. It was in force for 44 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
Jun 6, 2013, 12:46 PM EDT (16:46 UTC)
Expired
Jun 6, 2013, 1:30 PM EDT
In force
44 min
Issued by
NWS Melbourne, FL
Area
Storm-based polygon

County Okeechobee County, FL

The radar

The Melbourne radar (KMLB), 91 km from the middle of the area, began a volume at 16:48 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.

IssuedProductOfficeLasted
Jun 6, 10:43 AM EDTTornado WatchSPC11 hr

The nearest sounding before it

Cape Canaveral, FL (KXMR), launched 12:00Z, 4.8 hours before the alert went out and 134 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, Cape Canaveral, FL at 12:00Z on 2013-06-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 153 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, Cape Canaveral, FL at 12:00Z on 2013-06-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 277 square meters per square second.19395878Sfc1 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
153 J/kg
Mixed-layer CIN
-24 J/kg
Mixed-layer LCL
881 m above ground
0-6 km bulk shear
49 kt
0-1 km storm-relative helicity
277 m²/s²
0-3 km storm-relative helicity
347 m²/s²
Significant tornado parameter
0.2
Supercell composite
7.7

Open this sounding in Storm Lab

The text

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

691 
WFUS52 KMLB 061646
TORMLB
FLC093-061730-
/O.NEW.KMLB.TO.W.0020.130606T1646Z-130606T1730Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MELBOURNE FL
1246 PM EDT THU JUN 6 2013

THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS ISSUED A

* TORNADO WARNING FOR...
  CENTRAL OKEECHOBEE COUNTY IN FLORIDA...
  THIS INCLUDES THE CITIES OF...OKEECHOBEE...FORT DRUM...BASINGER...

* UNTIL 130 PM EDT.

* AT 1239 PM EDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 7 MILES SOUTH OF
  BASINGER...MOVING NORTH AT 40 MPH. ANOTHER ROTATING CELL WAS       
  LOCATED SOUTHEAST OF BRIGHTON IN GLADES COUNTY AND WILL EVENTUALLY 
  MOVE INTO OKEECHOBEE COUNTY.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  KISSIMMEE PRAIRIE PRESERVE

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THE SAFEST PLACE TO BE DURING A TORNADO IS IN A STRONG BUILDING ON
THE LOWEST FLOOR...IN AN INTERIOR ROOM SUCH AS A BATHROOM OR CLOSET.
KEEP AWAY FROM WINDOWS. GET UNDER A WORKBENCH OR OTHER PIECE OF
STURDY FURNITURE. USE BLANKETS OR PILLOWS TO COVER YOUR BODY.

EVACUATE MOBILE HOMES OR VEHICLES FOR MORE SUBSTANTIAL SHELTER.

A TORNADO WATCH ALSO REMAINS IN EFFECT UNTIL 1000 PM EDT THURSDAY 
EVENING FOR EASTERN FLORIDA.

&&

LAT...LON 2721 8095 2723 8099 2726 8101 2729 8100
      2730 8102 2733 8105 2736 8104 2738 8107
      2738 8109 2764 8103 2764 8078 2754 8078
      2718 8084 2715 8087
TIME...MOT...LOC 1644Z 202DEG 34KT 2734 8098

$$

SEDLOCK
2 follow-up statements
076 
WWUS52 KMLB 061709
SVSMLB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MELBOURNE FL
109 PM EDT THU JUN 6 2013

FLC093-061730-
/O.CON.KMLB.TO.W.0020.000000T0000Z-130606T1730Z/
OKEECHOBEE-
109 PM EDT THU JUN 6 2013

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 130 PM EDT FOR CENTRAL
OKEECHOBEE COUNTY...

AT 104 PM EDT...NATIONAL WEATHER SERVICE METEOROLOGISTS CONTINUED TO
DETECT A TORNADO.  THIS TORNADO WAS LOCATED 8 MILES SOUTHWEST OF
OKEECHOBEE AIRPORT...OR 8 MILES SOUTHWEST OF OKEECHOBEE...MOVING 
NORTH AT 40 MPH. THERE ARE ACTUALLY MULTIPLE CELLS IN OKEECHOBEE 
COUNTY EXHIBITING ROTATION AT PRESENT. ONE WAS JUST NORTHWEST OF 
WHISPERING PINES...ANOTHER OVER BASINGER AND YET ANOTHER OVER 
KISSIMMEE PRAIRIE PRESERVE.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO 
BASSWOOD ESTATES...COUNTRY HILLS ESTATES AND FORT DRUM

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THE SAFEST PLACE TO BE DURING A TORNADO IS IN A STRONG BUILDING ON
THE LOWEST FLOOR...IN AN INTERIOR ROOM SUCH AS A BATHROOM OR CLOSET.
KEEP AWAY FROM WINDOWS. GET UNDER A WORKBENCH OR OTHER PIECE OF
STURDY FURNITURE. USE BLANKETS OR PILLOWS TO COVER YOUR BODY.

EVACUATE MOBILE HOMES OR VEHICLES FOR MORE SUBSTANTIAL SHELTER.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM EDT THURSDAY EVENING
FOR EASTERN FLORIDA.

&&

LAT...LON 2721 8095 2723 8099 2726 8101 2729 8100
      2730 8102 2733 8105 2736 8104 2738 8107
      2738 8109 2764 8103 2764 8078 2754 8078
      2718 8084 2715 8087
TIME...MOT...LOC 1707Z 194DEG 43KT 2723 8094

$$

SEDLOCK
981 
WWUS52 KMLB 061728
SVSMLB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MELBOURNE FL
128 PM EDT THU JUN 6 2013

FLC093-061739-
/O.EXP.KMLB.TO.W.0020.000000T0000Z-130606T1730Z/
OKEECHOBEE-
128 PM EDT THU JUN 6 2013

...THE TORNADO WARNING FOR OKEECHOBEE COUNTY WILL EXPIRE AT 130 PM 
EDT...

THE SEVERE STORMS THAT PROMPTED THE WARNING HAD WEAKENED...THUS THE 
WARNING HAS BEEN ALLOWED TO EXPIRE.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM EDT THURSDAY EVENING
FOR EASTERN FLORIDA.

LAT...LON 2721 8095 2723 8099 2726 8101 2729 8100
      2730 8102 2733 8105 2736 8104 2738 8107
      2738 8109 2764 8103 2764 8078 2754 8078
      2718 8084 2715 8087
TIME...MOT...LOC 1729Z 194DEG 43KT 2749 8087

$$

SEDLOCK

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 6, 4:10 AM EDTLake Wind AdvisoryMLBLake, Okeechobee, Orange, Osceola, Seminole, Volusia16 hr
Jun 6, 6:31 AM EDTSpecial Weather StatementMLBOsceola44 min
Jun 6, 6:40 AM EDTTornado WarningMLBOsceola35 min
Jun 6, 7:00 AM EDTTornado WarningMLBMartin30 min
Jun 6, 7:30 AM EDTTornado WarningMLBMartin45 min
Jun 6, 7:32 AM EDTSpecial Marine WarningMLB88 min
Jun 6, 7:40 AM EDTSpecial Weather StatementMLBBrevard, Indian River35 min
Jun 6, 7:41 AM EDTSpecial Weather StatementMLBBrevard, Indian River34 min
Jun 6, 8:34 AM EDTSpecial Weather StatementMLBBrevard56 min
Jun 6, 9:02 AM EDTSpecial Marine WarningMLB88 min
Jun 6, 9:07 AM EDTSpecial Weather StatementMLBMartin38 min
Jun 6, 9:18 AM EDTAreal Flood AdvisoryMLBMartin117 min
Jun 6, 10:18 AM EDTTornado WarningMLBOkeechobee, Osceola27 min
Jun 6, 10:32 AM EDTSpecial Marine WarningMLB118 min
Jun 6, 11:41 AM EDTAreal Flood AdvisoryMLBOrange, Osceola, Seminole, Volusia109 min
Jun 6, 12:16 PM EDTSpecial Weather StatementMLBSaint Lucie44 min
Jun 6, 12:28 PM EDTTornado WarningMLBOrange, Seminole, Volusia47 min
Jun 6, 12:54 PM EDTSpecial Marine WarningMLB2 hr
Jun 6, 1:14 PM EDTSpecial Weather StatementMLBMartin31 min
Jun 6, 1:15 PM EDTTornado WarningMLBBrevard, Osceola30 min
Jun 6, 1:27 PM EDTTornado WarningMLBMartin, Saint Lucie48 min
Jun 6, 2:13 PM EDTSpecial Marine WarningMLB92 min
Jun 6, 2:30 PM EDTTornado WarningMLBIndian River30 min
Jun 6, 2:32 PM EDTTornado WarningMLBSaint Lucie13 min
Jun 6, 3:16 PM EDTSpecial Marine WarningMLB2 hr
Jun 6, 3:50 PM EDTAreal Flood AdvisoryMLBOkeechobee115 min
Jun 6, 3:57 PM EDTAreal Flood AdvisoryMLBIndian River, Martin, Saint Lucie4 hr
Jun 6, 5:49 PM EDTSpecial Marine WarningMLB86 min

Nearby

Tornado Warnings in Florida, 2013Every tornado warning in 2013Tornadoes in 2013

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.