Alert archive / Florida / Tornado Warnings in 2012

Tornado Warning 8, NWS Melbourne, FL

May 28, 2012Saint Lucie County, Florida

NWS Melbourne, FL issued this tornado warning at May 28, 2012, 3:08 PM EDT for Saint Lucie County, Florida. It was in force for 22 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 28, 2012, 3:08 PM EDT (19:08 UTC)
Expired
May 28, 2012, 3:30 PM EDT
In force
22 min
Issued by
NWS Melbourne, FL
Area
Storm-based polygon

County Saint Lucie County, FL

The radar

The Melbourne radar (KMLB), 91 km from the middle of the area, began a volume at 19:12 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

Cape Canaveral, FL (KXMR), launched 12:00Z, 7.1 hours before the alert went out and 124 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 2012-05-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 615 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 2012-05-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -29 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
615 J/kg
Mixed-layer CIN
-12 J/kg
Mixed-layer LCL
761 m above ground
0-6 km bulk shear
6 kt
0-1 km storm-relative helicity
-29 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.

488 
WFUS52 KMLB 281908
TORMLB
FLC111-281930-
/O.NEW.KMLB.TO.W.0008.120528T1908Z-120528T1930Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MELBOURNE FL
308 PM EDT MON MAY 28 2012

THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS ISSUED A

* TORNADO WARNING FOR...
  EAST CENTRAL ST. LUCIE COUNTY IN FLORIDA...
  THIS INCLUDES THE CITY OF SAINT LUCIE NUCLEAR PLANT...

* UNTIL 330 PM EDT.

* AT 302 PM EDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO NEAR INDIAN
  RIVER ESTATES...OR NEAR WALTON...MOVING NORTHEAST AT 10 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  FREDERICK DOUGLASS PARK.

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 2732 8024 2734 8026 2732 8025 2728 8034
      2740 8030 2740 8029 2735 8027 2739 8027
      2740 8028 2743 8029 2745 8028 2745 8027
      2733 8022
TIME...MOT...LOC 1907Z 184DEG 8KT 2732 8031

$$

SEDLOCK
2 follow-up statements
868 
WWUS52 KMLB 281921
SVSMLB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MELBOURNE FL
321 PM EDT MON MAY 28 2012

FLC111-281930-
/O.CON.KMLB.TO.W.0008.000000T0000Z-120528T1930Z/
ST. LUCIE-
321 PM EDT MON MAY 28 2012

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 330 PM EDT FOR EAST
CENTRAL ST. LUCIE COUNTY...

AT 316 PM EDT...NATIONAL WEATHER SERVICE METEOROLOGISTS CONTINUED TO 
DETECT ROTATION. THIS ROTATION WAS LOCATED NEAR SAINT LUCIE NUCLEAR 
PLANT...MOVING NORTHEAST AT 15 MPH.

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 2732 8024 2734 8026 2732 8025 2728 8034
      2740 8030 2740 8029 2735 8027 2739 8027
      2740 8028 2743 8029 2745 8028 2745 8027
      2733 8022
TIME...MOT...LOC 1921Z 244DEG 14KT 2734 8023

$$

SEDLOCK
486 
WWUS52 KMLB 281928
SVSMLB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MELBOURNE FL
328 PM EDT MON MAY 28 2012

FLC111-281938-
/O.EXP.KMLB.TO.W.0008.000000T0000Z-120528T1930Z/
ST. LUCIE-
328 PM EDT MON MAY 28 2012

...THE TORNADO WARNING FOR EAST CENTRAL ST. LUCIE COUNTY WILL BE 
ALLOWED TO EXPIRE AT 330 PM EDT...

THE SEVERE STORM THAT PROMPTED THE WARNING HAD WEAKENED AND EXITED
THE WARNING AREA...THUS THE WARNING HAS BEEN ALLOWED TO EXPIRE.

LAT...LON 2732 8024 2734 8026 2732 8025 2728 8034
      2740 8030 2740 8029 2735 8027 2739 8027
      2740 8028 2743 8029 2745 8028 2745 8027
      2733 8022
TIME...MOT...LOC 1928Z 244DEG 14KT 2735 8020

$$

SEDLOCK

The office that day

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

IssuedProductOfficeCountiesLasted
May 27, 10:31 PM EDTAreal Flood AdvisoryMLBSaint Lucie119 min
May 28, 11:47 AM EDTSpecial Weather StatementMLBOrange, Seminole43 min
May 28, 11:54 AM EDTSpecial Marine WarningMLB111 min
May 28, 12:01 PM EDTSpecial Weather StatementMLBOrange44 min
May 28, 12:13 PM EDTSpecial Weather StatementMLBOrange, Seminole, Volusia47 min
May 28, 12:57 PM EDTSpecial Weather StatementMLBSeminole, Volusia48 min
May 28, 1:07 PM EDTSpecial Marine WarningMLB113 min
May 28, 1:42 PM EDTSpecial Weather StatementMLBBrevard48 min
May 28, 1:56 PM EDTSpecial Weather StatementMLBOkeechobee49 min
May 28, 2:24 PM EDTSpecial Marine WarningMLB111 min
May 28, 2:34 PM EDTSpecial Weather StatementMLBOrange, Seminole41 min
May 28, 2:44 PM EDTSpecial Weather StatementMLBBrevard46 min
May 28, 2:50 PM EDTSpecial Weather StatementMLBSaint Lucie40 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.