Alert archive / Florida / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 70, NWS Melbourne, FL

July 22, 2012Brevard County, Florida

NWS Melbourne, FL issued this severe thunderstorm warning at Jul 22, 2012, 3:06 PM EDT for Brevard County, Florida. It was in force for 54 min. 3 reports 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: Jul 22, 2012, 3:06 PM EDT (19:06 UTC)
Expired: Jul 22, 2012, 4:00 PM EDT
In force: 54 min
Issued by: NWS Melbourne, FL
Area: Storm-based polygon

County Brevard County, FL

The radar

The Melbourne radar (KMLB), 6 km from the middle of the area, began a volume at 19:06 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.

What was reported inside it

Time	Report	Where	Remark
Jul 22, 3:20 PM EDT	TSTM WND GST 51	1 Nnw Valkaria, FL	XPRT GUSTS 44 KTS
Jul 22, 3:26 PM EDT	TSTM WND GST 48	Melbourne Airport, FL	KMLB ASOS OBSERVATION REMARK PK WND 14042/1926
Jul 22, 3:30 PM EDT	TSTM WND GST 68	2 S Cape Canaveral, FL	A SPOTTER MEASURED A 68 MPH THUNDERSTORM WIND GUST ON HIS DAVIS PRO WEATHER STATION.

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, 7.1 hours before the alert went out and 37 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: 765 J/kg
Mixed-layer CIN: -155 J/kg
Mixed-layer LCL: 1288 m above ground
0-6 km bulk shear: 2 kt
0-1 km storm-relative helicity: -18 m²/s²
0-3 km storm-relative helicity: -6 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.

884 
WUUS52 KMLB 221906
SVRMLB
FLC009-222000-
/O.NEW.KMLB.SV.W.0070.120722T1906Z-120722T2000Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MELBOURNE FL
306 PM EDT SUN JUL 22 2012

THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS ISSUED A

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

* UNTIL 400 PM EDT.

* AT 302 PM EDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A 
SQUALL CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 60 MPH.  THE 
LEADING EDE OF THE SQUALL LOCATED JUST SOUTH OF SEBASTIAN INLET... 
MOVING NORTHWEST AT 25 TO 30 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE...BUT ARE NOT LIMITED 
TO...MICCO...MALABAR...MELBOURNE BEACH...PALM BAY...MELBOURNE... 
INDIAN HARBOUR BEACH...SATELLITE BEACH...CAMP HOLLY FISH CAMP... 
COCOA BEACH...VIERA...MERRITT ISLAND...ROCKLEDGE...SHARPES...COCOA.

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 2788 8048 2791 8049 2791 8050 2786 8049
      2783 8051 2783 8080 2846 8089 2844 8075
      2841 8074 2844 8073 2844 8066 2841 8065
      2842 8063 2837 8059 2826 8060 2813 8057
      2788 8045
TIME...MOT...LOC 1903Z 127DEG 31KT 2793 8041

$$

2 follow-up statements

853 
WWUS52 KMLB 221929
SVSMLB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MELBOURNE FL
329 PM EDT SUN JUL 22 2012

FLC009-222000-
/O.CON.KMLB.SV.W.0070.000000T0000Z-120722T2000Z/
BREVARD-
329 PM EDT SUN JUL 22 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 400 PM EDT
FOR SOUTHERN BREVARD COUNTY...

AT 324 PM EDT...NATIONAL WEATHER SERVICE METEOROLOGISTS CONTINUED TO 
DETECT A SQUALL CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 60 
MPH.  THIS STORM WAS LOCATED NEAR SPESSARD HOLLAND PARK...OR NEAR 
INDIALANTIC...MOVING NORTHWEST AT 25 TO 30 MPH. THE MELBOURNE 
AIRPORT WEATHER OBSERVATION UNIT MEASURED A WIND GUST TO 48 MPH AT 
326 PM...AND AN OBSERVER IN VALKARIA MEASURED A GUST TO 50 MPH AT 
300 PM.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO 
MICCO...MALABAR...MELBOURNE BEACH...PALM BAY...MELBOURNE... INDIAN 
HARBOUR BEACH...SATELLITE BEACH...CAMP HOLLY FISH CAMP...COCOA 
BEACH...VIERA...MERRITT ISLAND...ROCKLEDGE...SHARPES...COCOA.

LAT...LON 2788 8048 2791 8049 2791 8050 2786 8049
      2783 8051 2783 8080 2846 8089 2844 8075
      2841 8074 2844 8073 2844 8066 2841 8065
      2842 8063 2837 8059 2826 8060 2813 8057
      2788 8045
TIME...MOT...LOC 1926Z 127DEG 31KT 2805 8059

$$

893 
WWUS52 KMLB 221945
SVSMLB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MELBOURNE FL
345 PM EDT SUN JUL 22 2012

FLC009-222000-
/O.CON.KMLB.SV.W.0070.000000T0000Z-120722T2000Z/
BREVARD-
345 PM EDT SUN JUL 22 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 400 PM EDT
FOR SOUTHERN BREVARD COUNTY...

AT 338 PM EDT...NATIONAL WEATHER SERVICE METEOROLOGISTS CONTINUED TO 
DETECT A SQUALL CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 60 
MPH. THIS STORM WAS LOCATED NEAR MELBOURNE VILLAGE...OR NEAR CAMP 
HOLLY FISH CAMP...MOVING NORTHWEST AT 30 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO 
SUNTREE...PINEDA...COCOA BEACH...VIERA...MERRITT ISLAND... 
ROCKLEDGE...SHARPES...CANAVERAL GROVES...LONE CABBAGE FISH 
CAMP...COCOA.

LAT...LON 2788 8048 2791 8049 2791 8050 2786 8049
      2783 8051 2783 8080 2846 8089 2844 8075
      2841 8074 2844 8073 2844 8066 2841 8065
      2842 8063 2837 8059 2826 8060 2813 8057
      2788 8045
TIME...MOT...LOC 1942Z 127DEG 31KT 2813 8072

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 22, 2:24 PM EDT	Special Weather Statement	MLB	Martin, Saint Lucie	51 min
Jul 22, 2:39 PM EDT	Severe Thunderstorm Warning	MLB	Indian River, Saint Lucie	52 min
Jul 22, 2:46 PM EDT	Special Marine Warning	MLB		89 min
Jul 22, 2:51 PM EDT	Special Marine Warning	MLB		84 min
Jul 22, 2:57 PM EDT	Special Weather Statement	MLB	Brevard	63 min
Jul 22, 3:09 PM EDT	Special Weather Statement	MLB	Okeechobee	51 min
Jul 22, 3:34 PM EDT	Special Weather Statement	MLB	Osceola	41 min
Jul 22, 3:36 PM EDT	Special Weather Statement	MLB	Brevard	54 min
Jul 22, 3:50 PM EDT	Special Marine Warning	MLB		115 min
Jul 22, 3:57 PM EDT	Severe Thunderstorm Warning	MLB	Brevard	5 min
Jul 22, 4:04 PM EDT	Severe Thunderstorm Warning	MLB	Orange, Osceola, Seminole, Volusia	56 min
Jul 22, 4:16 PM EDT	Severe Thunderstorm Warning	MLB	Brevard	26 min
Jul 22, 4:36 PM EDT	Special Weather Statement	MLB	Lake	84 min
Jul 22, 5:05 PM EDT	Severe Thunderstorm Warning	MLB	Lake, Orange	34 min
Jul 22, 5:15 PM EDT	Special Weather Statement	MLB	Lake, Volusia	90 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; radar from the NEXRAD Level II archive.