Alert archive / Georgia / Lake Wind Advisories in 2012

Lake Wind Advisory 45, NWS Jacksonville, FL

October 29, 20127 counties in Florida; 12 counties in Georgia

NWS Jacksonville, FL issued this lake wind advisory at Oct 29, 2012, 12:23 AM EDT for 7 counties in Florida; 12 counties in Georgia. It was in force for 19 hr.

The area

The counties it named.

The facts

Issued: Oct 29, 2012, 12:23 AM EDT (04:23 UTC)
Expired: Oct 29, 2012, 6:56 PM EDT
In force: 19 hr
Issued by: NWS Jacksonville, FL

Counties Baker County, FL, Bradford County, FL, Flagler County, FL, Gilchrist County, FL, Nassau County, FL, Suwannee County, FL, Union County, FL, Appling County, GA, Atkinson County, GA, Bacon County, GA, Brantley County, GA, Camden County, GA, Clinch County, GA, Coffee County, GA, Echols County, GA, Glynn County, GA, Jeff Davis County, GA, Pierce County, GA, Wayne County, GA

The nearest sounding before it

Jacksonville, FL (KJAX), launched 00:00Z, 4.4 hours before the alert went out and 69 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: 1 J/kg
Mixed-layer CIN: -12 J/kg
Mixed-layer LCL: 956 m above ground
0-6 km bulk shear: 41 kt
0-1 km storm-relative helicity: 9 m²/s²
0-3 km storm-relative helicity: 70 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 Jacksonville, FL wrote its last area forecast discussion before this lake wind advisory went out at Oct 28, 8:47 PM EDT, 3 hours 36 minutes earlier.

Area forecast discussion, Oct 28, 8:47 PM EDT, 3 hours 36 minutes before

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Hazardous weather outlook, Oct 28, 4:54 PM EDT, 7 hours 29 minutes before

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<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Service Notice</title>
  <link rel="stylesheet" href="index.css">
</head>
<body>
  <main class="wrap">
    <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>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
      </p>
      <p id="message2">
        Please try again in a few minutes.
      </p>
      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
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The office that day

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

Issued	Product	Office	Counties	Lasted
Oct 29, 4:05 AM EDT	Gale Watch	JAX		7 hr
Oct 29, 7:47 AM EDT	Coastal Flood Statement	JAX	Flagler, Nassau	4 hr
Oct 29, 10:41 AM EDT	Gale Warning	JAX		43 hr

Nearby

Lake Wind Advisories in Georgia, 2012 Lake Wind Advisories in Florida, 2012 Every lake wind advisory 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; the sounding from the Mesonet's radiosonde archive.