Alert archive / Florida / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 25, NWS Melbourne, FL

May 15, 2012Brevard County, Florida

NWS Melbourne, FL issued this severe thunderstorm warning at May 15, 2012, 7:08 PM EDT for Brevard County, Florida. It was in force for 37 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: May 15, 2012, 7:08 PM EDT (23:08 UTC)
Expired: May 15, 2012, 7:45 PM EDT
In force: 37 min
Issued by: NWS Melbourne, FL
Area: Storm-based polygon

County Brevard County, FL

The radar

The Melbourne radar (KMLB), 37 km from the middle of the area, began a volume at 23:09 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
May 15, 7:10 PM EDT	TSTM WND GST 54	3 E Kennedy Space Cente, FL	USAF 54 FT WIND TOWER NUMBER 506 MEASURED WIND GUST OF 47 KT/54 MPH
May 15, 7:15 PM EDT	TSTM WND GST 63	8 Sse Playalinda Beach, FL	USAF 54 FT WIND TOWER NUMBER 108 MEASURED WIND GUST OF 55 KT/63 MPH
May 15, 7:20 PM EDT	TSTM WND GST 64	8 N Port Canaveral, FL	USAF 54 FT WIND TOWER NUMBER 62 MEASURED WIND GUST OF 56 KT/64 MPH

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, 11.1 hours before the alert went out and 12 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1390 m above ground
0-6 km bulk shear: 19 kt
0-1 km storm-relative helicity: -5 m²/s²
0-3 km storm-relative helicity: -2 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.

201 
WUUS52 KMLB 152308
SVRMLB
FLC009-152345-
/O.NEW.KMLB.SV.W.0025.120515T2308Z-120515T2345Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MELBOURNE FL
708 PM EDT TUE MAY 15 2012

THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS ISSUED A

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

* UNTIL 745 PM EDT.

* AT 705 PM EDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
  DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED NEAR
  PORT CANAVERAL...AND MOVING NORTHEAST AT 20 MPH.

* THE SEVERE THUNDERSTORM WILL OTHERWISE REMAIN OVER MAINLY RURAL
  AREAS OF THE INDICATED COUNTY.

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 2843 8057 2837 8059 2835 8062 2836 8063
      2838 8062 2840 8063 2839 8066 2848 8074
      2850 8074 2862 8060 2859 8057 2851 8055
      2845 8052
TIME...MOT...LOC 2308Z 231DEG 19KT 2848 8061

$$


BOWEN

1 follow-up statement

076 
WWUS52 KMLB 152337
SVSMLB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MELBOURNE FL
737 PM EDT TUE MAY 15 2012

FLC009-152347-
/O.EXP.KMLB.SV.W.0025.000000T0000Z-120515T2345Z/
BREVARD-
737 PM EDT TUE MAY 15 2012

...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL BREVARD COUNTY
WILL EXPIRE AT 745 PM EDT...

THE SEVERE STORM THAT PROMPTED THE WARNING HAS EXITED THE WARNING 
AREA...THUS THE WARNING WILL BE ALLOWED TO EXPIRE.

LAT...LON 2843 8057 2837 8059 2835 8062 2836 8063
      2838 8062 2840 8063 2839 8066 2848 8074
      2850 8074 2862 8060 2859 8057 2851 8055
      2845 8052
TIME...MOT...LOC 2337Z 231DEG 19KT 2858 8047

$$


BOWEN

The office that day

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

Issued	Product	Office	Counties	Lasted
May 15, 3:04 PM EDT	Special Weather Statement	MLB	Martin	41 min
May 15, 3:08 PM EDT	Severe Thunderstorm Warning	MLB	Martin	35 min
May 15, 3:22 PM EDT	Special Weather Statement	MLB	Brevard	38 min
May 15, 3:25 PM EDT	Special Marine Warning	MLB		65 min
May 15, 3:34 PM EDT	Special Weather Statement	MLB	Okeechobee	41 min
May 15, 3:48 PM EDT	Areal Flood Advisory	MLB	Brevard	39 min
May 15, 3:59 PM EDT	Special Weather Statement	MLB	Brevard	31 min
May 15, 4:00 PM EDT	Special Weather Statement	MLB	Indian River	45 min
May 15, 4:23 PM EDT	Special Weather Statement	MLB	Volusia	37 min
May 15, 4:26 PM EDT	Special Marine Warning	MLB		2 hr
May 15, 4:53 PM EDT	Special Weather Statement	MLB	Brevard	52 min
May 15, 5:01 PM EDT	Special Weather Statement	MLB	Okeechobee	44 min
May 15, 5:43 PM EDT	Special Weather Statement	MLB	Brevard	47 min
May 15, 6:08 PM EDT	Special Weather Statement	MLB	Volusia	37 min
May 15, 6:24 PM EDT	Tornado Warning	MLB	Volusia	36 min
May 15, 6:46 PM EDT	Special Weather Statement	MLB	Orange	44 min
May 15, 6:52 PM EDT	Tornado Warning	MLB	Brevard, Volusia	23 min
May 15, 6:56 PM EDT	Special Marine Warning	MLB		94 min
May 15, 7:08 PM EDT	Tornado Warning	MLB	Brevard, Volusia	37 min
May 15, 7:23 PM EDT	Special Weather Statement	MLB	Seminole	37 min
May 15, 7:45 PM EDT	Special Weather Statement	MLB	Brevard	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; radar from the NEXRAD Level II archive.