Alert archive / Florida / Special Weather Statements in 2017

Special Weather Statement, NWS Melbourne, FL

May 13, 2017Lake County, Florida

NWS Melbourne, FL issued this special weather statement at May 13, 2017, 12:09 PM EDT for Lake County, Florida. It was in force for 51 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 13, 2017, 12:09 PM EDT (16:09 UTC)
Expired: May 13, 2017, 1:00 PM EDT
In force: 51 min
Issued by: NWS Melbourne, FL

County Lake County, FL

The radar

The Melbourne radar (KMLB), 128 km from the middle of the area, began a volume at 16:09 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.

The nearest sounding before it

Jacksonville, FL (KJAX), launched 12:00Z, 4.2 hours before the alert went out and 190 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: 937 J/kg
Mixed-layer CIN: -17 J/kg
Mixed-layer LCL: 781 m above ground
0-6 km bulk shear: 43 kt
0-1 km storm-relative helicity: 80 m²/s²
0-3 km storm-relative helicity: 84 m²/s²
Significant tornado parameter: 0.3
Supercell composite: 2.2

Open this sounding in Storm Lab

The text

As transmitted.

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The office that day

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

Issued	Product	Office	Counties	Lasted
May 13, 3:20 AM EDT	Lake Wind Advisory	MLB	Okeechobee, Orange, Osceola, Seminole	17 hr
May 13, 1:36 PM EDT	Special Weather Statement	MLB	Lake	39 min
May 13, 1:56 PM EDT	Special Weather Statement	MLB	Lake	49 min
May 13, 2:05 PM EDT	Special Weather Statement	MLB	Volusia	40 min
May 13, 2:13 PM EDT	Special Marine Warning	MLB		62 min
May 13, 2:16 PM EDT	Special Weather Statement	MLB	Volusia	44 min
May 13, 2:42 PM EDT	Special Weather Statement	MLB	Seminole	48 min
May 13, 3:12 PM EDT	Special Weather Statement	MLB	Seminole	33 min
May 13, 3:33 PM EDT	Special Marine Warning	MLB		27 min
May 13, 3:53 PM EDT	Special Marine Warning	MLB		67 min

Nearby

Special Weather Statements in Florida, 2017 Every special weather statement in 2017

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.