Alert archive / Florida / Lake Wind Advisories in 2018

Lake Wind Advisory 8, NWS Melbourne, FL

April 15, 20186 counties in Florida

NWS Melbourne, FL issued this lake wind advisory at Apr 15, 2018, 4:22 AM EDT for 6 counties in Florida. It took effect at Apr 15, 2018, 10:00 AM EDT. It was in force for 10 hr.

The area

The counties it named.

The facts

Issued: Apr 15, 2018, 4:22 AM EDT (08:22 UTC)
In effect from: Apr 15, 2018, 10:00 AM EDT
Expired: Apr 15, 2018, 8:00 PM EDT
In force: 10 hr
Issued by: NWS Melbourne, FL

Counties Lake County, FL, Okeechobee County, FL, Orange County, FL, Osceola County, FL, Seminole County, FL, Volusia County, FL

The radar

The Melbourne radar (KMLB), 67 km from the middle of the area, began a volume at 08:22 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 00:00Z, 8.4 hours before the alert went out and 236 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: 312 J/kg
Mixed-layer CIN: -63 J/kg
Mixed-layer LCL: 992 m above ground
0-6 km bulk shear: 23 kt
0-1 km storm-relative helicity: 77 m²/s²
0-3 km storm-relative helicity: 59 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this lake wind advisory 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 lake wind advisory went out at Apr 15, 4:06 AM EDT, 16 minutes earlier.

Area forecast discussion, Apr 15, 4:06 AM EDT, 16 minutes before

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Hazardous weather outlook, Apr 14, 7:47 PM EDT, 8 hours 35 minutes before

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    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
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        The site you requested is temporarily down for maintenance or an unexpected outage.
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        Please try again in a few minutes.
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The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 15, 2:05 PM EDT	Special Weather Statement	MLB	Okeechobee	40 min
Apr 15, 2:10 PM EDT	Special Weather Statement	MLB	Lake	35 min
Apr 15, 2:28 PM EDT	Special Weather Statement	MLB	Lake	47 min
Apr 15, 2:45 PM EDT	Special Weather Statement	MLB	Orange	30 min
Apr 15, 2:59 PM EDT	Special Weather Statement	MLB	Okeechobee	46 min
Apr 15, 3:08 PM EDT	Severe Thunderstorm Warning	MLB	Lake, Orange	37 min
Apr 15, 3:14 PM EDT	Special Weather Statement	MLB	Volusia	46 min
Apr 15, 3:18 PM EDT	Severe Thunderstorm Warning	MLB	Orange, Seminole	27 min
Apr 15, 3:20 PM EDT	Severe Thunderstorm Warning	MLB	Lake, Volusia	55 min
Apr 15, 3:21 PM EDT	Special Weather Statement	MLB	Brevard	39 min
Apr 15, 3:24 PM EDT	Special Marine Warning	MLB		2 hr
Apr 15, 3:40 PM EDT	Special Marine Warning	MLB		2 hr
Apr 15, 3:41 PM EDT	Severe Thunderstorm Warning	MLB	Seminole, Volusia	49 min
Apr 15, 3:44 PM EDT	Special Weather Statement	MLB	Indian River	46 min
Apr 15, 4:02 PM EDT	Special Weather Statement	MLB	Brevard	28 min
Apr 15, 4:22 PM EDT	Special Weather Statement	MLB	Seminole	38 min
Apr 15, 4:25 PM EDT	Special Weather Statement	MLB	Lake	50 min
Apr 15, 4:26 PM EDT	Special Weather Statement	MLB	Indian River	34 min
Apr 15, 4:39 PM EDT	Special Weather Statement	MLB	Brevard	21 min
Apr 15, 4:48 PM EDT	Special Marine Warning	MLB		117 min
Apr 15, 4:57 PM EDT	Tornado Warning	MLB	Indian River	18 min
Apr 15, 5:03 PM EDT	Special Marine Warning	MLB		117 min
Apr 15, 5:27 PM EDT	Special Weather Statement	MLB	Indian River	33 min
Apr 15, 5:57 PM EDT	Special Marine Warning	MLB		53 min
Apr 15, 7:04 PM EDT	Special Marine Warning	MLB		3 hr
Apr 15, 7:08 PM EDT	Special Weather Statement	MLB	Indian River, Martin, Okeechobee, Saint Lucie	67 min

Nearby

Lake Wind Advisories in Florida, 2018 Every lake wind advisory in 2018

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.