Alert archive / Florida / Special Weather Statements in 2011

Special Weather Statement, NWS Melbourne, FL

September 6, 2011Orange County, Seminole County, Volusia County, Florida

NWS Melbourne, FL issued this special weather statement at Sep 6, 2011, 9:02 AM EDT for Orange County, Seminole County, Volusia County, Florida. It was in force for 58 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: Sep 6, 2011, 9:02 AM EDT (13:02 UTC)
Expired: Sep 6, 2011, 10:00 AM EDT
In force: 58 min
Issued by: NWS Melbourne, FL

Counties Orange County, FL, Seminole County, FL, Volusia County, FL

The radar

The Melbourne radar (KMLB), 96 km from the middle of the area, began a volume at 13:04 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

Tampa Bay, FL (KTBW), launched 12:00Z, 1.0 hours before the alert went out and 166 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: 2866 J/kg
Mixed-layer CIN: -3 J/kg
Mixed-layer LCL: 605 m above ground
0-6 km bulk shear: 13 kt
0-1 km storm-relative helicity: -10 m²/s²
0-3 km storm-relative helicity: 12 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.

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What forecasters said that day

The local office's own words before this special weather statement went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Melbourne, FL wrote its last area forecast discussion before this special weather statement went out at Sep 6, 3:45 AM EDT, 5 hours 17 minutes earlier.

Area forecast discussion, Sep 6, 3:45 AM EDT, 5 hours 17 minutes before

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Hazardous weather outlook, Sep 6, 8:50 AM EDT, 12 minutes before

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In the hours before

Special weather statement, Sep 6, 9:02 AM EDT, 0 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 6, 12:18 PM EDT	Special Marine Warning	MLB		57 min
Sep 6, 12:22 PM EDT	Special Weather Statement	MLB	Brevard, Indian River	38 min
Sep 6, 1:49 PM EDT	Special Marine Warning	MLB		86 min
Sep 6, 1:52 PM EDT	Special Weather Statement	MLB	Martin, Okeechobee, Saint Lucie	38 min
Sep 6, 2:27 PM EDT	Special Weather Statement	MLB	Martin	48 min
Sep 6, 2:43 PM EDT	Small Craft Advisory for Hazardous Seas	MLB		56 hr
Sep 6, 2:49 PM EDT	Special Marine Warning	MLB		49 min
Sep 6, 3:15 PM EDT	Special Marine Warning	MLB		60 min

Nearby

Special Weather Statements in Florida, 2011 Every special weather statement in 2011

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.