Alert archive / Florida / Tornado Warnings in 2012

Tornado Warning 1, NWS Melbourne, FL

May 14, 2012Martin County, Florida

NWS Melbourne, FL issued this tornado warning at May 14, 2012, 4:45 PM EDT for Martin County, Florida. It was in force for 17 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 14, 2012, 4:45 PM EDT (20:45 UTC)
Expired
May 14, 2012, 5:02 PM EDT
In force
17 min
Issued by
NWS Melbourne, FL
Area
Storm-based polygon

County Martin County, FL

The radar

The Melbourne radar (KMLB), 127 km from the middle of the area, began a volume at 20:46 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 nearest sounding before it

Miami, FL (KMFL), launched 12:00Z, 8.8 hours before the alert went out and 131 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, Miami, FL at 12:00Z on 2012-05-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1180 joules per kilogram.LCLEL10008507005003002001001 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, Miami, FL at 12:00Z on 2012-05-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 15 square meters per square second.1939Sfc1 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
1180 J/kg
Mixed-layer CIN
-1 J/kg
Mixed-layer LCL
651 m above ground
0-6 km bulk shear
18 kt
0-1 km storm-relative helicity
15 m²/s²
0-3 km storm-relative helicity
24 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.

025 
WFUS52 KMLB 142045
TORMLB
FLC085-142115-
/O.NEW.KMLB.TO.W.0001.120514T2045Z-120514T2115Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MELBOURNE FL
445 PM EDT MON MAY 14 2012

THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTH CENTRAL MARTIN COUNTY IN FLORIDA...

* UNTIL 515 PM EDT.

* AT 442 PM EDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO OVER SOUTH
  CENTRAL MARTIN COUNTY...OR NEAR INDIANTOWN...MOVING SOUTH AT 5
  MPH.

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

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.

&&

LAT...LON 2696 8047 2704 8046 2709 8035 2696 8029
      2695 8047
TIME...MOT...LOC 2045Z 349DEG 8KT 2701 8041

$$


WEITLICH
1 follow-up statement
529 
WWUS52 KMLB 142102
SVSMLB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MELBOURNE FL
502 PM EDT MON MAY 14 2012

FLC085-142108-
/O.CAN.KMLB.TO.W.0001.000000T0000Z-120514T2115Z/
MARTIN-
502 PM EDT MON MAY 14 2012

...THE TORNADO WARNING FOR SOUTH CENTRAL MARTIN COUNTY IS
CANCELLED...

THE SEVERE STORM AND TORNADO THAT PROMPTED THE WARNING HAD WEAKENED 
AND NO LONGER APPEARED CAPABLE OF PRODUCING TORNADOES...THUS THE 
WARNING HAS BEEN CANCELLED. HOWEVER...HEAVY RAIN...STRONG GUSTS AND 
DANGEROUS LIGHTNING STRIKES WILL CONTINUE TO BE POSSIBLE.

LAT...LON 2696 8047 2704 8046 2709 8035 2696 8029
      2695 8047
TIME...MOT...LOC 2058Z 349DEG 8KT 2698 8040

$$


WEITLICH

The office that day

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

IssuedProductOfficeCountiesLasted
May 14, 3:24 PM EDTSpecial Weather StatementMLBLake51 min
May 14, 4:21 PM EDTSpecial Weather StatementMLBMartin39 min
May 14, 4:37 PM EDTSevere Thunderstorm WarningMLBMartin28 min

Nearby

Tornado Warnings in Florida, 2012Every tornado warning in 2012Tornadoes in 2012

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.