Alert archive / Florida / Tornado Warnings in 2012

Tornado Warning 23, NWS Melbourne, FL

August 27, 2012Indian River County, Martin County, Saint Lucie County, Florida

NWS Melbourne, FL issued this tornado warning at Aug 27, 2012, 12:15 PM EDT for Indian River County, Martin County, Saint Lucie County, Florida. It was in force for 35 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
Aug 27, 2012, 12:15 PM EDT (16:15 UTC)
Expired
Aug 27, 2012, 12:50 PM EDT
In force
35 min
Issued by
NWS Melbourne, FL
Area
Storm-based polygon

Counties Indian River County, FL, Martin County, FL, Saint Lucie County, FL

The radar

The Melbourne radar (KMLB), 93 km from the middle of the area, began a volume at 16:16 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, 4.3 hours before the alert went out and 127 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 2012-08-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 2012-08-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -35 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
691 m above ground
0-6 km bulk shear
11 kt
0-1 km storm-relative helicity
-35 m²/s²
0-3 km storm-relative helicity
-28 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.

607 
WFUS52 KMLB 271615
TORMLB
FLC061-085-111-271700-
/O.NEW.KMLB.TO.W.0023.120827T1615Z-120827T1700Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MELBOURNE FL
1215 PM EDT MON AUG 27 2012

THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS ISSUED A

* TORNADO WARNING FOR...
  EASTERN INDIAN RIVER COUNTY IN FLORIDA...
  NORTHEAST MARTIN COUNTY IN FLORIDA...
  EASTERN ST. LUCIE COUNTY IN FLORIDA...

* UNTIL 100 PM EDT.

* AT 1211 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO NEAR INDIAN 
RIVER ESTATES...MOVING NORTH AT 35 MPH. ANOTHER DEVELOPING 
CIRCULATION WAS DETECTED NEAR STUART.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO 
  FORT PIERCE..SAINT LUCIE VILLAGE...QUEENS COVE...LAKEWOOD 
PARK...VERO BEACH HIGHLANDS...SOUTH BEACH...POINTE WEST AND VERO 
LAKE ESTATES

TORNADOES ASSOCIATED WITH TROPICAL CYCLONES ARE OFTEN WRAPPED IN
HEAVY RAIN AND ARE HARD TO SEE OR HEAR UNTIL THEY ARE VERY CLOSE. DO
NOT GET CAUGHT OFFGUARD!

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

STORMS WITHIN DOMINANT RAINBANDS CAN PRODUCE TORNADOES VERY QUICKLY! 
OFTEN...IN SITUATIONS SUCH AS THIS...MORE THAN ONE TORNADO IS 
PRODUCED. BE PREPARED FOR THE OCCURRENCE OF MULTIPLE TORNADOES MOVING
THROUGH THE RAINBAND!

&&

LAT...LON 2711 8015 2712 8037 2781 8056 2782 8045
      2783 8042 2723 8018 2724 8017 2720 8017
      2720 8019 2718 8017
TIME...MOT...LOC 1613Z 170DEG 23KT 2738 8034

$$


15
2 follow-up statements
295 
WWUS52 KMLB 271639
SVSMLB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MELBOURNE FL
1239 PM EDT MON AUG 27 2012

FLC085-271645-
/O.CAN.KMLB.TO.W.0023.000000T0000Z-120827T1700Z/
MARTIN-
1239 PM EDT MON AUG 27 2012

...THE TORNADO WARNING FOR NORTHEAST MARTIN COUNTY IS 
CANCELLED...

STORMS WITH STRONG ROTATION HAVE MOVED NORTH OF MARTIN COUNTY. THE 
TORNADO WARNING HAS BEEN CANCELLED.

LAT...LON 2726 8022 2728 8023 2727 8023 2727 8039
      2778 8048 2779 8040 2761 8034 2762 8033
      2749 8029 2732 8022 2733 8022 2732 8022
      2726 8020
TIME...MOT...LOC 1635Z 170DEG 23KT 2752 8037

$$

FLC061-111-271700-
/O.CON.KMLB.TO.W.0023.000000T0000Z-120827T1700Z/
ST. LUCIE-INDIAN RIVER-
1239 PM EDT MON AUG 27 2012

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 100 PM EDT FOR EASTERN
INDIAN RIVER AND EASTERN ST. LUCIE COUNTIES...

AT 1235 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE ROTATION ACROSS SOUTHEAST INDIAN RIVER COUNTY. THIS STORM 
WAS LOCATED NEAR VERO BEACH HIGHLANDS NORTH AT 35 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO 
LAKEWOOD PARK...VERO BEACH...ORCHID...WINTER BEACH...WABASSO 
BEACH...WABASSO BEACH PARK...WABASSO...INDIAN RIVER SHORES AND 
GIFFORD.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

WHEN A TORNADO WARNING IS ISSUED BASED ON DOPPLER RADAR...IT MEANS
THAT STRONG ROTATION HAS BEEN DETECTED IN THE STORM. A TORNADO MAY
ALREADY BE ON THE GROUND...OR IS EXPECTED TO DEVELOP SHORTLY. IF YOU
ARE IN THE PATH OF THIS DANGEROUS STORM...MOVE INDOORS AND TO THE
LOWEST LEVEL OF THE BUILDING. STAY AWAY FROM WINDOWS. IF DRIVING...DO
NOT SEEK SHELTER UNDER A HIGHWAY OVERPASS.

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 2726 8022 2728 8023 2727 8023 2727 8039
      2778 8048 2779 8040 2761 8034 2762 8033
      2749 8029 2732 8022 2733 8022 2732 8022
      2726 8020
TIME...MOT...LOC 1635Z 170DEG 23KT 2752 8037

$$


15
644 
WWUS52 KMLB 271650
SVSMLB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MELBOURNE FL
1250 PM EDT MON AUG 27 2012

FLC061-111-271657-
/O.CAN.KMLB.TO.W.0023.000000T0000Z-120827T1700Z/
ST. LUCIE-INDIAN RIVER-
1250 PM EDT MON AUG 27 2012

...THE TORNADO WARNING FOR EASTERN INDIAN RIVER AND EASTERN ST. LUCIE
COUNTIES IS CANCELLED...

THE STRONG ROTATION WITH STORMS ACROSS INDIAN RIVER AND ST. LUCIE 
HAS DIMINISHED AND THE TORNADO WARNING HAS BEEN CANCELLED. 

SHOWERS AND STORMS WILL CONTINUE ACROSS EASTERN INDIAN RIVER AND ST. 
LUCIE COUNTIES INTO MID AFTERNOON. LOCALLY HEAVY RAIN AMOUNTS WILL
CAUSE FLOODING OF RURAL AND URBAN AREAS AND GUSTY WINDS TO 45 MPH 
ARE STILL POSSIBLE WITH THESE STORMS. 

LISTEN FOR LATER STATEMENTS AND POSSIBLE WARNINGS.

LAT...LON 2726 8022 2728 8023 2727 8023 2727 8039
      2778 8048 2779 8040 2761 8034 2762 8033
      2749 8029 2732 8022 2733 8022 2732 8022
      2726 8020
TIME...MOT...LOC 1647Z 170DEG 23KT 2760 8039

$$


15

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 26, 10:01 PM EDTTornado WarningMLBMartin, Saint Lucie29 min
Aug 26, 10:33 PM EDTSpecial Marine WarningMLB57 min
Aug 26, 10:39 PM EDTTornado WarningMLBMartin, Saint Lucie21 min
Aug 26, 10:51 PM EDTSpecial Weather StatementMLBOkeechobee39 min
Aug 26, 11:31 PM EDTLake Wind AdvisoryMLBLake, Okeechobee, Orange, Osceola, Seminole, Volusia20 hr
Aug 26, 11:31 PM EDTWind AdvisoryMLB20 hr
Aug 26, 11:55 PM EDTSpecial Weather StatementMLBIndian River, Martin, Okeechobee, Saint Lucie80 min
Aug 27, 12:36 AM EDTSevere Thunderstorm WarningMLBMartin, Okeechobee54 min
Aug 27, 12:47 AM EDTTornado WarningMLBOkeechobee28 min
Aug 27, 1:01 AM EDTAreal Flood AdvisoryMLBIndian River, Martin, Okeechobee, Saint Lucie119 min
Aug 27, 1:22 AM EDTSpecial Weather StatementMLBIndian River, Saint Lucie38 min
Aug 27, 1:59 AM EDTSpecial Weather StatementMLBMartin46 min
Aug 27, 2:36 AM EDTSpecial Weather StatementMLBIndian River, Okeechobee, Saint Lucie54 min
Aug 27, 2:55 AM EDTSpecial Weather StatementMLBOrange50 min
Aug 27, 3:48 AM EDTSpecial Weather StatementMLBIndian River42 min
Aug 27, 4:13 AM EDTSevere Thunderstorm WarningMLBBrevard, Orange, Osceola42 min
Aug 27, 4:57 AM EDTSpecial Weather StatementMLBOrange, Seminole48 min
Aug 27, 7:06 AM EDTAreal Flood AdvisoryMLBIndian River, Lake, Martin, Okeechobee, Orange, Osceola and 1 more114 min
Aug 27, 7:27 AM EDTAreal Flood WarningMLBOkeechobee3 hr
Aug 27, 7:38 AM EDTSpecial Weather StatementMLBOkeechobee52 min
Aug 27, 9:00 AM EDTAreal Flood AdvisoryMLBIndian River, Martin, Osceola, Saint Lucie3 hr
Aug 27, 9:34 AM EDTSpecial Weather StatementMLBIndian River, Martin, Saint Lucie56 min
Aug 27, 10:09 AM EDTSpecial Marine WarningMLB111 min
Aug 27, 10:24 AM EDTAreal Flood WarningMLBOsceola3 hr
Aug 27, 10:26 AM EDTSpecial Weather StatementMLBIndian River, Saint Lucie64 min
Aug 27, 10:31 AM EDTTornado WarningMLBOrange, Seminole29 min
Aug 27, 10:33 AM EDTAreal Flood WarningMLBOkeechobee3 hr
Aug 27, 11:07 AM EDTAreal Flood AdvisoryMLBBrevard, Indian River, Martin, Osceola, Saint Lucie113 min
Aug 27, 11:24 AM EDTTornado WarningMLBMartin, Saint Lucie51 min
Aug 27, 11:36 AM EDTSpecial Weather StatementMLBIndian River, Martin, Saint Lucie39 min
Aug 27, 11:52 AM EDTAreal Flood WarningMLBMartin, Saint Lucie2 hr
Aug 27, 11:55 AM EDTSpecial Marine WarningMLB80 min
Aug 27, 12:02 PM EDTSpecial Weather StatementMLBSeminole43 min
Aug 27, 12:53 PM EDTAreal Flood WarningMLBIndian River67 min
Aug 27, 1:48 PM EDTSpecial Weather StatementMLBMartin42 min
Aug 27, 2:00 PM EDTAreal Flood WarningMLBIndian River, Martin, Saint Lucie2 hr
Aug 27, 2:38 PM EDTSpecial Weather StatementMLBIndian River22 min
Aug 27, 3:05 PM EDTSpecial Weather StatementMLBMartin25 min
Aug 27, 4:00 PM EDTAreal Flood WarningMLBIndian River, Martin, Saint Lucie2 hr

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.