Alert archive / Florida / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 84, NWS Melbourne, FL

August 16, 2012Brevard County, Florida

NWS Melbourne, FL issued this severe thunderstorm warning at Aug 16, 2012, 5:03 PM EDT for Brevard County, Florida. It was in force for 27 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: Aug 16, 2012, 5:03 PM EDT (21:03 UTC)
Expired: Aug 16, 2012, 5:30 PM EDT
In force: 27 min
Issued by: NWS Melbourne, FL
Area: Storm-based polygon

County Brevard County, FL

What was reported inside it

Time	Report	Where	Remark
Aug 16, 5:12 PM EDT	TSTM WND DMG	Palm Bay, FL	TREE DOWN ON HOUSE AT 1510 AMADOR AVENUE NORTHWEST. REPORT FROM FLORIDA TODAY/PALM BAY FIRE RESCUE.

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, 9.1 hours before the alert went out and 44 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: 1398 J/kg
Mixed-layer CIN: -32 J/kg
Mixed-layer LCL: 1006 m above ground
0-6 km bulk shear: 10 kt
0-1 km storm-relative helicity: 7 m²/s²
0-3 km storm-relative helicity: 3 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.

012 
WUUS52 KMLB 162103
SVRMLB
FLC009-162130-
/O.NEW.KMLB.SV.W.0084.120816T2103Z-120816T2130Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MELBOURNE FL
503 PM EDT THU AUG 16 2012

THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS ISSUED A

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

* UNTIL 530 PM EDT.

* AT 501 PM EDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A 
SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS  
OF 60 MPH. THIS STORM WAS LOCATED OVER MELBOURNE...IN THE LAKE 
WASHINGTON AREA. THIS STORM WAS NEARLY STATIONARY.

* OTHER LOCATIONS IN THE WARNING INCLUDE...BUT ARE NOT LIMITED 
TO...  WEST MELBOURNE AND MELBOURNE.

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 2806 8060 2802 8077 2817 8083 2824 8069
TIME...MOT...LOC 2103Z 334DEG 1KT 2813 8072

$$

2 follow-up statements

674 
WWUS52 KMLB 162119
SVSMLB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MELBOURNE FL
519 PM EDT THU AUG 16 2012

FLC009-162130-
/O.CON.KMLB.SV.W.0084.000000T0000Z-120816T2130Z/
BREVARD-
519 PM EDT THU AUG 16 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 530 PM EDT
FOR CENTRAL BREVARD COUNTY...

AT 518 PM EDT...NATIONAL WEATHER SERVICE METEOROLOGISTS CONTINUED TO 
DETECT SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER SIZE HAIL 
AND DAMAGING WINDS IN EXCESS OF 60 MPH FROM CAMP HOLLY FISH CAMP TO 
JUNE PARK...AND WEST MELBOURNE.  THIS STORMS WERE MOVING SOUTH AT 5 TO
10 MPH.

LAT...LON 2807 8079 2808 8076 2815 8077 2815 8064
      2806 8060 2802 8077
TIME...MOT...LOC 2118Z 334DEG 1KT 2813 8072

$$




CRISTALDI

935 
WWUS52 KMLB 162125
SVSMLB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MELBOURNE FL
525 PM EDT THU AUG 16 2012

FLC009-162135-
/O.EXP.KMLB.SV.W.0084.000000T0000Z-120816T2130Z/
BREVARD-
525 PM EDT THU AUG 16 2012

...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL BREVARD COUNTY WILL
EXPIRE AT 530 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 2807 8079 2808 8076 2815 8077 2815 8064
      2806 8060 2802 8077
TIME...MOT...LOC 2125Z 334DEG 1KT 2813 8072

$$

SEDLOCK

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 15, 8:21 PM EDT	Areal Flood Advisory	MLB	Seminole, Volusia	114 min
Aug 15, 8:36 PM EDT	Special Weather Statement	MLB	Seminole	39 min
Aug 15, 8:57 PM EDT	Areal Flood Warning	MLB	Seminole	2 hr
Aug 16, 1:58 PM EDT	Special Weather Statement	MLB	Lake	47 min
Aug 16, 3:12 PM EDT	Special Marine Warning	MLB		108 min
Aug 16, 3:31 PM EDT	Special Weather Statement	MLB	Brevard	44 min
Aug 16, 3:55 PM EDT	Severe Thunderstorm Warning	MLB	Brevard	47 min
Aug 16, 3:59 PM EDT	Special Marine Warning	MLB		2 hr
Aug 16, 4:19 PM EDT	Special Weather Statement	MLB	Brevard	41 min
Aug 16, 4:24 PM EDT	Special Weather Statement	MLB	Osceola	51 min
Aug 16, 4:53 PM EDT	Special Weather Statement	MLB	Seminole	52 min
Aug 16, 5:08 PM EDT	Areal Flood Advisory	MLB	Brevard	112 min
Aug 16, 5:25 PM EDT	Special Weather Statement	MLB	Brevard	35 min
Aug 16, 5:36 PM EDT	Special Weather Statement	MLB	Osceola	39 min
Aug 16, 6:15 PM EDT	Special Weather Statement	MLB	Osceola	45 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive.