Alert archive / Florida / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 26, NWS Melbourne, FL

May 16, 2012Brevard County, Florida

NWS Melbourne, FL issued this severe thunderstorm warning at May 16, 2012, 7:44 PM EDT for Brevard County, Florida. It was in force for 46 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 16, 2012, 7:44 PM EDT (23:44 UTC)
Expired: May 16, 2012, 8:30 PM EDT
In force: 46 min
Issued by: NWS Melbourne, FL
Area: Storm-based polygon

County Brevard County, FL

The radar

The Melbourne radar (KMLB), 14 km from the middle of the area, began a volume at 23:48 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, 11.7 hours before the alert went out and 30 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 8 J/kg
Mixed-layer CIN: -101 J/kg
Mixed-layer LCL: 1533 m above ground
0-6 km bulk shear: 17 kt
0-1 km storm-relative helicity: 4 m²/s²
0-3 km storm-relative helicity: 14 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.

444 
WUUS52 KMLB 162344
SVRMLB
FLC009-170045-
/O.NEW.KMLB.SV.W.0026.120516T2344Z-120517T0045Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MELBOURNE FL
744 PM EDT WED MAY 16 2012

THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CENTRAL BREVARD COUNTY IN FLORIDA

* UNTIL 845 PM EDT.

* AT 738 PM EDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS  
OF 60 MPH.  THIS STORM WAS APPROACHING VIERA...AND MOVING EAST AT 15 
MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE...BUT ARE NOT LIMITED TO... 
SUNTREE...COCOA BEACH...PATRICK AIR FORCE BASE...SATELLITE BEACH AND 
INDIAN HARBOUR BEACH.

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.

IN ADDITION TO LARGE HAIL AND DAMAGING WINDS...CONTINUOUS CLOUD TO
GROUND LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS
IMMEDIATELY! LIGHTNING IS ONE OF NATURES NUMBER ONE KILLERS.
REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE
STRUCK BY LIGHTNING.

&&

LAT...LON 2814 8061 2820 8064 2816 8063 2815 8063
      2819 8086 2832 8084 2835 8065 2832 8065
      2835 8064 2836 8060 2826 8060 2814 8058
TIME...MOT...LOC 2343Z 271DEG 13KT 2825 8076

$$


KELLY

2 follow-up statements

997 
WWUS52 KMLB 170002
SVSMLB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MELBOURNE FL
802 PM EDT WED MAY 16 2012

FLC009-170045-
/O.CON.KMLB.SV.W.0026.000000T0000Z-120517T0045Z/
BREVARD-
802 PM EDT WED MAY 16 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 845 PM EDT
FOR CENTRAL BREVARD COUNTY...

AT 757 PM EDT...NATIONAL WEATHER SERVICE METEOROLOGISTS CONTINUED TO
DETECT A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN 
EXCESS OF 60 MPH.  THIS STORM WAS LOCATED NEAR VIERA AND SUNTREE... 
MOVING EAST AT 15 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO 
PINEDA...GEORGIANA...PALM SHORES...COCOA BEACH...PATRICK AIR FORCE 
BASE...SATELLITE BEACH AND INDIAN HARBOUR BEACH.

LAT...LON 2814 8061 2820 8064 2816 8063 2815 8063
      2817 8077 2830 8074 2835 8065 2832 8065
      2835 8064 2836 8060 2826 8060 2814 8058
TIME...MOT...LOC 0001Z 271DEG 13KT 2825 8069

$$


KELLY

837 
WWUS52 KMLB 170030
SVSMLB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MELBOURNE FL
830 PM EDT WED MAY 16 2012

FLC009-170027-
/O.CAN.KMLB.SV.W.0026.000000T0000Z-120517T0045Z/
BREVARD-
830 PM EDT WED MAY 16 2012

...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL BREVARD COUNTY IS
CANCELLED...

THE SEVERE STORM THAT PROMPTED THE WARNING HAD WEAKENED AND WAS NO
LONGER CAPABLE OF PRODUCING LARGE HAIL OR DAMAGING WINDS. AS A
RESULT...THE WARNING HAS BEEN CANCELLED. HOWEVER...HEAVY RAIN AND
DANGEROUS LIGHTNING STRIKES WILL CONTINUE TO BE POSSIBLE.

LAT...LON 2814 8061 2820 8064 2816 8063 2815 8063
      2817 8077 2830 8074 2835 8065 2832 8065
      2835 8064 2836 8060 2826 8060 2814 8058
TIME...MOT...LOC 0017Z 271DEG 13KT 2825 8062

$$


KELLY

The office that day

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

Issued	Product	Office	Counties	Lasted
May 16, 2:00 PM EDT	Areal Flood Advisory	MLB	Volusia	60 min
May 16, 6:10 PM EDT	Special Weather Statement	MLB	Osceola	35 min
May 16, 7:00 PM EDT	Special Weather Statement	MLB	Indian River	45 min
May 16, 7:29 PM EDT	Special Weather Statement	MLB	Brevard	46 min
May 16, 7:34 PM EDT	Special Marine Warning	MLB		116 min

Nearby

Severe Thunderstorm Warnings in Florida, 2012 Every 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.