Alert archive / Florida / Tornado Warnings in 2012

Tornado Warning 7, NWS Melbourne, FL

May 19, 2012Martin County, Okeechobee County, Saint Lucie County, Florida

NWS Melbourne, FL issued this tornado warning at May 19, 2012, 3:32 PM EDT for Martin County, Okeechobee County, Saint Lucie County, Florida. It was in force for 43 min. 1 report 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
May 19, 2012, 3:32 PM EDT (19:32 UTC)
Expired
May 19, 2012, 4:15 PM EDT
In force
43 min
Issued by
NWS Melbourne, FL
Area
Storm-based polygon

Counties Martin County, FL, Okeechobee County, FL, Saint Lucie County, FL

The radar

The Melbourne radar (KMLB), 105 km from the middle of the area, began a volume at 19:33 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
May 19, 3:33 PM EDTHAIL 0.55 E Okeechobee, FLSKYWARN SPOTTER IN FOUR SEASONS ESTATES AREA OF OKEECHOBEE OBSERVED MARBLE SIZE HAIL AND VERY HEAVY RAIN.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Cape Canaveral, FL (KXMR), launched 12:00Z, 7.5 hours before the alert went out and 146 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 2012-05-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 563 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 2012-05-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 36 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
563 J/kg
Mixed-layer CIN
-34 J/kg
Mixed-layer LCL
981 m above ground
0-6 km bulk shear
20 kt
0-1 km storm-relative helicity
36 m²/s²
0-3 km storm-relative helicity
97 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.

435 
WFUS52 KMLB 191932
TORMLB
FLC085-093-111-192015-
/O.NEW.KMLB.TO.W.0007.120519T1932Z-120519T2015Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MELBOURNE FL
332 PM EDT SAT MAY 19 2012

THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHWESTERN MARTIN COUNTY IN FLORIDA...
  SOUTHEASTERN OKEECHOBEE COUNTY IN FLORIDA...
  THIS INCLUDES THE CITY OF OKEECHOBEE...
  SOUTHWESTERN ST. LUCIE COUNTY IN FLORIDA...

* UNTIL 415 PM EDT.

* AT 328 PM EDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO NEAR FOUR   
SEASONS ESTATES...MOVING SOUTHEAST AT 10   MPH.

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

THE IMMEDIATE DANGER OF A TORNADO IS HIGH. PEOPLE IN THE PATH OF THIS
DEVELOPING TORNADO ARE URGED TO QUICKLY PREPARE FOR ITS APPROACH.
THIS IS A DANGEROUS SITUATION! ACT NOW AS SECONDS CAN SAVE LIVES!

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 2709 8067 2710 8067 2718 8075 2720 8080
      2718 8084 2722 8089 2735 8076 2719 8054
      2708 8066
TIME...MOT...LOC 1932Z 312DEG 10KT 2722 8075

$$


KELLY
3 follow-up statements
694 
WWUS52 KMLB 191940
SVSMLB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MELBOURNE FL
340 PM EDT SAT MAY 19 2012

FLC085-093-111-192015-
/O.CON.KMLB.TO.W.0007.000000T0000Z-120519T2015Z/
ST. LUCIE-OKEECHOBEE-MARTIN-
340 PM EDT SAT MAY 19 2012

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 415 PM EDT FOR
NORTHWESTERN MARTIN...SOUTHEASTERN OKEECHOBEE AND SOUTHWESTERN ST.
LUCIE COUNTIES...

AT 338 PM EDT...NATIONAL WEATHER SERVICE METEOROLOGISTS CONTINUED TO 
DETECT A TORNADO.  THIS TORNADO WAS LOCATED 5 MILES EAST OF TAYLOR 
CREEK...OR 7 MILES SOUTHEAST OF OKEECHOBEE CITY...MOVING SOUTHEAST 
AT 10 MPH.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
STURDY SHELTER.

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.

&&

LAT...LON 2709 8067 2710 8067 2718 8075 2720 8079
      2724 8079 2731 8070 2719 8054 2708 8066
TIME...MOT...LOC 1939Z 312DEG 10KT 2720 8073

$$


KELLY
266 
WWUS52 KMLB 192004
SVSMLB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MELBOURNE FL
404 PM EDT SAT MAY 19 2012

FLC093-192014-
/O.CAN.KMLB.TO.W.0007.000000T0000Z-120519T2015Z/
OKEECHOBEE-
404 PM EDT SAT MAY 19 2012

...THE TORNADO WARNING FOR SOUTHEASTERN OKEECHOBEE COUNTY IS
CANCELLED...

LAT...LON 2708 8066 2709 8067 2713 8068 2726 8068
      2729 8067 2719 8054
TIME...MOT...LOC 2004Z 299DEG 13KT 2716 8063

$$

FLC085-111-192015-
/O.CON.KMLB.TO.W.0007.000000T0000Z-120519T2015Z/
ST. LUCIE-MARTIN-
404 PM EDT SAT MAY 19 2012

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 415 PM EDT FOR
NORTHWESTERN MARTIN AND SOUTHWESTERN ST. LUCIE COUNTIES...

AT 401 PM EDT...NATIONAL WEATHER SERVICE METEOROLOGISTS CONTINUED TO
DETECT A TORNADO.  THIS TORNADO WAS LOCATED OVER EXTREME NORTHWESTERN
MARTIN COUNTY...OR 13 MILES NORTH OF PORT MAYACA...MOVING SOUTHEAST
AT 15 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 2708 8066 2709 8067 2713 8068 2726 8068
      2729 8067 2719 8054
TIME...MOT...LOC 2004Z 299DEG 13KT 2716 8063

$$


KELLY
232 
WWUS52 KMLB 192017
SVSMLB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MELBOURNE FL
417 PM EDT SAT MAY 19 2012

FLC085-111-192027-
/O.EXP.KMLB.TO.W.0007.000000T0000Z-120519T2015Z/
ST. LUCIE-MARTIN-
417 PM EDT SAT MAY 19 2012

...THE TORNADO WARNING FOR NORTHWESTERN MARTIN AND SOUTHWESTERN ST.
LUCIE COUNTIES HAS EXPIRED...

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 DANGEROUS LIGHTNING STRIKES WILL CONTINUE TO BE 
POSSIBLE. 

LAT...LON 2708 8066 2709 8067 2713 8068 2726 8068
      2729 8067 2719 8054
TIME...MOT...LOC 2004Z 299DEG 13KT 2716 8063

$$


KELLY

The office that day

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

IssuedProductOfficeCountiesLasted
May 19, 2:03 PM EDTSpecial Weather StatementMLBIndian River, Okeechobee57 min
May 19, 2:10 PM EDTSevere Thunderstorm WarningMLBIndian River, Okeechobee, Saint Lucie50 min
May 19, 2:52 PM EDTSevere Thunderstorm WarningMLBMartin38 min
May 19, 3:22 PM EDTSpecial Weather StatementMLBOkeechobee38 min
May 19, 3:26 PM EDTSpecial Marine WarningMLB49 min
May 19, 3:31 PM EDTSevere Thunderstorm WarningMLBMartin44 min
May 19, 4:15 PM EDTSpecial Marine WarningMLB104 min
May 19, 4:17 PM EDTSpecial Weather StatementMLBMartin43 min
May 19, 4:24 PM EDTSpecial Weather StatementMLBMartin36 min
May 19, 4:39 PM EDTSpecial Weather StatementMLBOsceola51 min
May 19, 5:29 PM EDTSpecial Weather StatementMLBOsceola46 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.