Alert archive / Florida / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 43, NWS Melbourne, FL

June 6, 2012Martin County, Okeechobee County, Saint Lucie County, Florida

NWS Melbourne, FL issued this severe thunderstorm warning at Jun 6, 2012, 5:51 AM EDT for Martin County, Okeechobee County, Saint Lucie County, Florida. It was in force for 54 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
Jun 6, 2012, 5:51 AM EDT (09:51 UTC)
Expired
Jun 6, 2012, 6:45 AM EDT
In force
54 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), 98 km from the middle of the area, began a volume at 09:55 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 00:00Z, 9.9 hours before the alert went out and 160 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 00:00Z on 2012-06-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2033 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 00:00Z on 2012-06-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -2 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
2033 J/kg
Mixed-layer CIN
-1 J/kg
Mixed-layer LCL
1306 m above ground
0-6 km bulk shear
25 kt
0-1 km storm-relative helicity
-2 m²/s²
0-3 km storm-relative helicity
38 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.

207 
WUUS52 KMLB 060951
SVRMLB
FLC085-093-111-061045-
/O.NEW.KMLB.SV.W.0043.120606T0951Z-120606T1045Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MELBOURNE FL
551 AM EDT WED JUN 6 2012

THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHWESTERN MARTIN COUNTY IN FLORIDA
  SOUTHEASTERN OKEECHOBEE COUNTY IN FLORIDA
  ST. LUCIE COUNTY IN FLORIDA

* UNTIL 645 AM EDT.

* AT 545 AM EDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS
  OF 60 MPH.  THIS STORM WAS LOCATED 11 MILES EAST OF TAYLOR CREEK...
  OR 13 MILES NORTH OF PORT MAYACA...AND MOVING NORTHEAST AT 45 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE...BUT ARE NOT LIMITED TO...
  PALM CITY...PORT SALERNO...PORT SAINT LUCIE...SAINT LUCIE WEST...
  STUART...NORTH RIVER SHORES...ROCKY POINT...JENSEN BEACH...PORT
  SAINT LUCIE RIVER PARK...WALTON...NETTLES ISLAND...WHITE CITY...
  INDIAN RIVER ESTATES...SAINT LUCIE NUCLEAR PLANT...FORT PIERCE...  
   LAKEWOOD PARK...SAINT LUCIE VILLAGE...INDRIO...STATE ROUTE 710    
  AND STATE ROUTE 70. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS IN EXCESS OF 58 MILES AN
HOUR AND OR LARGE DESTRUCTIVE HAIL. FREQUENT TO EXCESSIVE LIGHTNING
AND VERY HEAVY RAIN WILL ALSO BE POSSIBLE. IF THE STORM APPROACHES
YOU...SEEK SHELTER IN AN ENCLOSED BUILDING ON THE LOWEST FLOOR. KEEP
AWAY FROM WINDOWS.

&&

LAT...LON 2710 8067 2716 8072 2720 8080 2717 8085
      2720 8088 2756 8040 2756 8031 2743 8027
      2729 8020 2728 8019 2727 8019 2721 8015
      2717 8015 2698 8062
TIME...MOT...LOC 0950Z 223DEG 37KT 2721 8058

$$


MOSES
2 follow-up statements
732 
WWUS52 KMLB 061014
SVSMLB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MELBOURNE FL
614 AM EDT WED JUN 6 2012

FLC093-061024-
/O.CAN.KMLB.SV.W.0043.000000T0000Z-120606T1045Z/
OKEECHOBEE-
614 AM EDT WED JUN 6 2012

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN OKEECHOBEE COUNTY
IS CANCELLED...

LAT...LON 2717 8015 2712 8062 2729 8068 2735 8068
      2756 8040 2756 8031 2743 8027 2732 8021
      2729 8020 2728 8019 2727 8019 2724 8017
      2721 8017 2721 8015
TIME...MOT...LOC 1014Z 222DEG 37KT 2739 8044

$$

FLC085-111-061045-
/O.CON.KMLB.SV.W.0043.000000T0000Z-120606T1045Z/
ST. LUCIE-MARTIN-
614 AM EDT WED JUN 6 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 645 AM EDT
FOR NORTHERN MARTIN AND ST. LUCIE COUNTIES...

AT 613 AM EDT...NATIONAL WEATHER SERVICE METEOROLOGISTS CONTINUED TO
DETECT A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DESTRUCTIVE WINDS
IN EXCESS OF 70 MPH.  THIS STORM WAS LOCATED NEAR CARLTON...OR 7
MILES WEST OF WHITE CITY...MOVING NORTHEAST AT 45 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO JENSEN
BEACH...PORT SAINT LUCIE RIVER PARK...WALTON...NETTLES ISLAND...
WAVELAND...WHITE CITY...COLLINS PARK ESTATES...INDIAN RIVER
ESTATES...FORT PIERCE SOUTH...SAINT LUCIE NUCLEAR PLANT...FORT
PIERCE...FORT PIERCE NORTH...FREDERICK DOUGLASS PARK...SAINT LUCIE
AIRPORT...LAKEWOOD PARK...SURFSIDE PARK...SAINT LUCIE VILLAGE...FORT
PIERCE OCEAN PARK...INDRIO...FORT PIERCE INLET...PEPPER BEACH PARK
AND QUEENS COVE

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS IN EXCESS OF 58 MILES AN
HOUR AND OR LARGE DESTRUCTIVE HAIL. FREQUENT TO EXCESSIVE LIGHTNING
AND VERY HEAVY RAIN WILL ALSO BE POSSIBLE. IF THE STORM APPROACHES
YOU...SEEK SHELTER IN AN ENCLOSED BUILDING ON THE LOWEST FLOOR. KEEP
AWAY FROM WINDOWS.

&&

LAT...LON 2717 8015 2712 8062 2729 8068 2735 8068
      2756 8040 2756 8031 2743 8027 2732 8021
      2729 8020 2728 8019 2727 8019 2724 8017
      2721 8017 2721 8015
TIME...MOT...LOC 1014Z 222DEG 37KT 2739 8044

$$


MOSES
831 
WWUS52 KMLB 061045
SVSMLB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MELBOURNE FL
645 AM EDT WED JUN 6 2012

FLC085-111-061055-
/O.EXP.KMLB.SV.W.0043.000000T0000Z-120606T1045Z/
ST. LUCIE-MARTIN-
645 AM EDT WED JUN 6 2012

...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN MARTIN AND ST. LUCIE
COUNTIES HAS EXPIRED...

THE SEVERE STORM THAT PROMPTED THE WARNING HAS WEAKENED AND MOVED 
OFFSHORE...THUS THE WARNING HAS BEEN ALLOWED TO EXPIRE.

LAT...LON 2717 8015 2712 8062 2729 8068 2735 8068
      2756 8040 2756 8031 2743 8027 2732 8021
      2729 8020 2728 8019 2727 8019 2724 8017
      2721 8017 2721 8015
TIME...MOT...LOC 1045Z 222DEG 37KT 2763 8020

$$


MOSES

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 5, 8:03 PM EDTSpecial Weather StatementMLBLake, Seminole, Volusia57 min
Jun 6, 5:32 AM EDTSpecial Weather StatementMLBMartin, Saint Lucie88 min
Jun 6, 6:06 AM EDTSpecial Marine WarningMLB84 min
Jun 6, 6:18 AM EDTSpecial Weather StatementMLBIndian River42 min
Jun 6, 10:40 AM EDTSpecial Marine WarningMLB95 min
Jun 6, 10:46 AM EDTSpecial Weather StatementMLBVolusia59 min
Jun 6, 1:38 PM EDTSpecial Weather StatementMLBSeminole37 min
Jun 6, 2:11 PM EDTSpecial Marine WarningMLB2 hr
Jun 6, 2:14 PM EDTSpecial Weather StatementMLBVolusia61 min
Jun 6, 3:20 PM EDTSpecial Weather StatementMLBOrange40 min
Jun 6, 3:36 PM EDTSpecial Weather StatementMLBOsceola39 min
Jun 6, 4:12 PM EDTSpecial Weather StatementMLBOsceola48 min
Jun 6, 4:21 PM EDTSpecial Marine WarningMLB114 min
Jun 6, 4:41 PM EDTSpecial Weather StatementMLBBrevard49 min
Jun 6, 4:45 PM EDTSpecial Marine WarningMLB60 min
Jun 6, 4:47 PM EDTSpecial Weather StatementMLBVolusia28 min
Jun 6, 4:52 PM EDTSpecial Weather StatementMLBBrevard38 min
Jun 6, 6:14 PM EDTSpecial Weather StatementMLBIndian River46 min
Jun 6, 6:26 PM EDTSpecial Marine WarningMLB42 min

Nearby

Severe Thunderstorm Warnings in Florida, 2012Every severe thunderstorm warning 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.