Alert archive / Florida / Wind Advisories in 2024

Wind Advisory 11, NWS Jacksonville, FL

September 27, 2024Duval County, Flagler County, Nassau County, Florida; Camden County, Glynn County, Georgia

NWS Jacksonville, FL issued this wind advisory at Sep 27, 2024, 10:35 AM EDT for Duval County, Flagler County, Nassau County, Florida; Camden County, Glynn County, Georgia. It was in force for 3 hr.

The area

The counties it named.

The facts

Issued: Sep 27, 2024, 10:35 AM EDT (14:35 UTC)
Expired: Sep 27, 2024, 2:00 PM EDT
In force: 3 hr
Issued by: NWS Jacksonville, FL

Counties Duval County, FL, Flagler County, FL, Nassau County, FL, Camden County, GA, Glynn County, GA

The radar

The Jacksonville radar (KJAX), 13 km from the middle of the area, began a volume at 14:38 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

Charleston AFB, SC (KCHS), launched 12:00Z, 2.6 hours before the alert went out and 304 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: 1276 J/kg
Mixed-layer CIN: -3 J/kg
Mixed-layer LCL: 677 m above ground
0-6 km bulk shear: 36 kt
0-1 km storm-relative helicity: 284 m²/s²
0-3 km storm-relative helicity: 288 m²/s²
Significant tornado parameter: 2.1
Supercell composite: 15.8

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this 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 wind advisory went out at Sep 27, 6:45 AM EDT, 3 hours 50 minutes earlier.

Area forecast discussion, Sep 27, 6:45 AM EDT, 3 hours 50 minutes before

<!doctype html>
<html lang="en">
<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.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>

In the hours before

Local storm report, Sep 27, 6:53 AM EDT, 3 hours 42 minutes before

<!doctype html>
<html lang="en">
<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.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>

The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 26, 8:07 PM EDT	Special Marine Warning	JAX		23 min
Sep 26, 8:11 PM EDT	Special Marine Warning	JAX		64 min
Sep 26, 8:17 PM EDT	Special Marine Warning	JAX		28 min
Sep 26, 8:45 PM EDT	Special Marine Warning	JAX		30 min
Sep 26, 9:56 PM EDT	Extreme Wind Warning	JAX	Hamilton, Suwannee	2 hr
Sep 26, 11:04 PM EDT	Tornado Warning Tornado observed	JAX	Columbia, Hamilton	26 min
Sep 27, 12:02 AM EDT	Extreme Wind Warning	JAX	Hamilton, Suwannee	65 min
Sep 27, 12:27 AM EDT	Flash Flood Warning	JAX	Hamilton, Suwannee	3 hr
Sep 27, 8:10 AM EDT	Small Craft Advisory	JAX		18 hr
Sep 26, 8:16 PM EDT	Tornado Warning	JAX	Camden, Glynn	29 min
Sep 26, 8:49 PM EDT	Tornado Warning	JAX	Glynn	26 min
Sep 26, 9:13 PM EDT	Tornado Warning	JAX	Glynn	17 min
Sep 26, 11:24 PM EDT	River Flood Warning	JAX	Echols	46 hr
Sep 26, 11:26 PM EDT	River Flood Warning	JAX	Jeff Davis, Montgomery, Toombs	15 days
Sep 26, 11:26 PM EDT	River Flood Warning	JAX	Appling, Tattnall, Toombs, Wayne	17 days
Sep 26, 11:42 PM EDT	Extreme Wind Warning	JAX	Echols	85 min
Sep 27, 1:17 AM EDT	Flash Flood Warning	JAX	Atkinson, Clinch	4 hr
Sep 27, 2:11 AM EDT	Flash Flood Warning	JAX	Atkinson, Bacon, Coffee, Jeff Davis	4 hr

Nearby

Wind Advisories in Florida, 2024 Wind Advisories in Georgia, 2024 Every wind advisory in 2024

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.