Alert archive / Florida / Lake Wind Advisories in 2018

Lake Wind Advisory 7, NWS Melbourne, FL

March 21, 20185 counties in Florida

NWS Melbourne, FL issued this lake wind advisory at Mar 21, 2018, 2:53 AM EDT for 5 counties in Florida. It took effect at Mar 21, 2018, 10:00 AM EDT. It was in force for 9 hr.

The area

The counties it named.

The facts

Issued: Mar 21, 2018, 2:53 AM EDT (06:53 UTC)
In effect from: Mar 21, 2018, 10:00 AM EDT
Expired: Mar 21, 2018, 7:00 PM EDT
In force: 9 hr
Issued by: NWS Melbourne, FL

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

The radar

The Melbourne radar (KMLB), 86 km from the middle of the area, began a volume at 06:55 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 00:00Z, 6.9 hours before the alert went out and 148 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: 7 J/kg
Mixed-layer CIN: -446 J/kg
Mixed-layer LCL: 1262 m above ground
0-6 km bulk shear: 74 kt
0-1 km storm-relative helicity: 13 m²/s²
0-3 km storm-relative helicity: 74 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

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 Mar 20, 9:45 PM EDT, 5 hours 8 minutes earlier.

Area forecast discussion, Mar 20, 9:45 PM EDT, 5 hours 8 minutes before

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Hazardous weather outlook, Mar 20, 9:11 PM EDT, 5 hours 42 minutes before

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In the hours before

Local storm report, Mar 20, 10:13 PM EDT, 4 hours 40 minutes before

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  <main class="wrap">
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      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
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The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 20, 8:03 PM EDT	Special Weather Statement	MLB	Martin	27 min
Mar 20, 8:13 PM EDT	Severe Thunderstorm Warning	MLB	Martin	17 min
Mar 20, 8:17 PM EDT	Special Marine Warning	MLB		58 min
Mar 21, 2:58 AM EDT	Red Flag Warning	MLB	Okeechobee, Osceola	16 hr
Mar 21, 4:16 AM EDT	Small Craft Advisory	MLB		42 hr

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.