Alert archive / Florida / Tornado Warnings in 2007

Tornado Warning 14, NWS Melbourne, FL

May 6, 2007Saint Lucie County, Florida

NWS Melbourne, FL issued this tornado warning at May 6, 2007, 5:15 PM EDT for Saint Lucie County, Florida. It was in force for 45 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
May 6, 2007, 5:15 PM EDT (21:15 UTC)
Expired
May 6, 2007, 6:00 PM EDT
In force
45 min
Issued by
NWS Melbourne, FL
Area
Counties, with a storm outline in the text

County Saint Lucie County, FL

The radar

The Melbourne radar (KMLB), 88 km from the middle of the area, began a volume at 21:15 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
May 6, 1:49 PM EDTSevere Thunderstorm WatchSPC8 hr

The nearest sounding before it

Cape Canaveral, FL (KXMR), launched 12:00Z, 9.3 hours before the alert went out and 128 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 2007-05-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1889 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 2007-05-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 44 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
1889 J/kg
Mixed-layer CIN
-17 J/kg
Mixed-layer LCL
724 m above ground
0-6 km bulk shear
37 kt
0-1 km storm-relative helicity
44 m²/s²
0-3 km storm-relative helicity
83 m²/s²
Significant tornado parameter
0.6
Supercell composite
3.5

Open this sounding in Storm Lab

The text

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

000 
WFUS52 KMLB 062115
TORMLB
FLC111-062200-
/O.NEW.KMLB.TO.W.0014.070506T2115Z-070506T2200Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MELBOURNE FL
515 PM EDT SUN MAY 6 2007

THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS ISSUED A

* TORNADO WARNING FOR...
  WESTERN ST. LUCIE COUNTY IN EAST CENTRAL FLORIDA...

* UNTIL 600 PM EDT

* AT 511 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A 
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO OVER WESTERN ST. 
LUCIE COUNTY...ABOUT 13 MILES SOUTHEAST OF FORT DRUM...MOVING SOUTH 
AT 25 MPH.

* THE TORNADO WILL BE OVER...
  RURAL WESTERN ST. LUCIE COUNTY THROUGH 540 PM EDT

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. IF NO
SHELTER IS AVAILABLE...LIE FLAT IN THE NEAREST DITCH OR OTHER LOW
SPOT AND COVER YOUR HEAD WITH YOUR HANDS. ABANDON YOUR VEHICLE IF THE
TORNADO IS NEARBY.

LAT...LON 2746 8060 2743 8066 2712 8065 2715 8036

$$

KELLY
2 follow-up statements
000 
WWUS52 KMLB 062130
SVSMLB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MELBOURNE FL
528 PM EDT SUN MAY 6 2007

FLC111-062200-
/O.CON.KMLB.TO.W.0014.000000T0000Z-070506T2200Z/
ST. LUCIE FL-
528 PM EDT SUN MAY 6 2007

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 600 PM EDT FOR WESTERN 
ST. LUCIE COUNTY...

AT 524 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A TORNADO.  THIS TORNADO WAS LOCATED OVER WESTERN ST. LUCIE 
COUNTY...ABOUT 13 MILES EAST OF OKEECHOBEE...MOVING SOUTH AT 30 MPH.

THE TORNADO WILL OTHERWISE REMAIN OVER MAINLY RURAL AREAS OF THE
INDICATED COUNTY.

IN ADDITION TO THE TORNADO...THIS STORM IS CAPABLE OF PRODUCING  
HAIL AND STRONG STRAIGHT LINE WINDS.

IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
STURDY SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE NEAREST
DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.


LAT...LON 2733 8059 2731 8067 2713 8068 2715 8046

$$

KELLY
000 
WWUS52 KMLB 062154
SVSMLB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MELBOURNE FL
554 PM EDT SUN MAY 6 2007

FLC111-062204-
/O.EXP.KMLB.TO.W.0014.000000T0000Z-070506T2200Z/
ST. LUCIE FL-
554 PM EDT SUN MAY 6 2007

...THE TORNADO WARNING FOR SOUTHWESTERN ST. LUCIE COUNTY EXPIRES AT
600 PM EDT...

NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THE SEVERE STORM AND
TORNADO THAT PROMPTED THE WARNING HAD WEAKENED AND NO LONGER APPEARED
CAPABLE OF PRODUCING TORNADOES OR OTHER SEVERE WEATHER...THUS THE
WARNING HAS BEEN ALLOWED TO EXPIRE. HOWEVER...HEAVY RAIN AND 
FREQUENT TO EXCESSIVE LIGHTNING STRIKES WILL CONTINUE TO BE POSSIBLE 
IN RURAL SOUTHWESTERN ST. LUCIE COUNTY. 

LAT...LON 2733 8059 2731 8067 2713 8068 2715 8046

$$

KELLY

The office that day

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

IssuedProductOfficeCountiesLasted
May 6, 10:14 AM EDTSpecial Marine WarningMLB2 hr
May 6, 11:13 AM EDTHigh Surf AdvisoryMLBVolusia65 hr
May 6, 2:02 PM EDTSpecial Marine WarningMLB118 min
May 6, 2:06 PM EDTWind AdvisoryMLBOrange, Osceola, Seminole, Volusia30 hr
May 6, 2:16 PM EDTSevere Thunderstorm WarningMLBVolusia59 min
May 6, 2:31 PM EDTSevere Thunderstorm WarningMLBOrange59 min
May 6, 2:58 PM EDTSevere Thunderstorm WarningMLBBrevard, Orange, Seminole, Volusia62 min
May 6, 3:37 PM EDTSevere Thunderstorm WarningMLBOrange, Seminole23 min
May 6, 4:00 PM EDTSevere Thunderstorm WarningMLBBrevard45 min
May 6, 4:20 PM EDTSevere Thunderstorm WarningMLBOrange32 min
May 6, 4:25 PM EDTSevere Thunderstorm WarningMLBIndian River65 min
May 6, 4:34 PM EDTSevere Thunderstorm WarningMLBOsceola56 min
May 6, 4:57 PM EDTSevere Thunderstorm WarningMLBOkeechobee63 min
May 6, 5:46 PM EDTSevere Thunderstorm WarningMLBMartin, Okeechobee, Saint Lucie51 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.