Alert archive / Georgia / Areal Flood Advisories in 2025

Areal Flood Advisory 310, NWS Jacksonville, FL

August 23, 2025Glynn County, Georgia

NWS Jacksonville, FL issued this areal flood advisory at Aug 23, 2025, 8:43 AM EDT for Glynn County, Georgia. It was in force for 2 hr.

The area

The counties it named.

The facts

Issued
Aug 23, 2025, 8:43 AM EDT (12:43 UTC)
Expired
Aug 23, 2025, 10:44 AM EDT
In force
2 hr
Issued by
NWS Jacksonville, FL
Area
Storm-based polygon

County Glynn County, GA

The radar

The Jacksonville radar (KJAX), 83 km from the middle of the area, began a volume at 12:42 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, 0.7 hours before the alert went out and 82 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-pSkew-T log-p diagram, Jacksonville, FL at 12:00Z on 2025-08-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 992 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Jacksonville, FL at 12:00Z on 2025-08-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 30 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
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
992 J/kg
Mixed-layer CIN
-14 J/kg
Mixed-layer LCL
637 m above ground
0-6 km bulk shear
9 kt
0-1 km storm-relative helicity
30 m²/s²
0-3 km storm-relative helicity
40 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 areal flood 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 areal flood advisory went out at Aug 23, 8:24 AM EDT, 19 minutes earlier.

Area forecast discussion, Aug 23, 8:24 AM EDT, 19 minutes before
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In the hours before

Special weather statement, Aug 23, 6:22 AM EDT, 2 hours 21 minutes before
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<head>
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  <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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Special weather statement, Aug 23, 7:59 AM EDT, 44 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.

IssuedProductOfficeCountiesLasted
Aug 22, 8:05 PM EDTAreal Flood AdvisoryJAXSuwannee85 min
Aug 23, 1:02 AM EDTFlood WatchJAXDuval, Nassau19 hr
Aug 23, 5:25 AM EDTSpecial Marine WarningJAX65 min
Aug 23, 6:22 AM EDTSpecial Weather StatementJAXGilchrist38 min
Aug 23, 7:59 AM EDTSpecial Weather StatementJAXBradford31 min
Aug 23, 9:28 AM EDTSpecial Weather StatementJAXDuval32 min
Aug 23, 10:01 AM EDTAreal Flood AdvisoryJAXBaker, Duval, Nassau119 min
Aug 23, 2:18 PM EDTSpecial Weather StatementJAXSuwannee42 min
Aug 23, 2:30 PM EDTAreal Flood AdvisoryJAXNassau2 hr
Aug 23, 4:20 PM EDTAreal Flood AdvisoryJAXBaker, Columbia, Union115 min
Aug 23, 5:11 PM EDTSpecial Weather StatementJAXClay34 min
Aug 23, 5:23 PM EDTSpecial Weather StatementJAXClay, Duval67 min
Aug 23, 5:48 PM EDTAreal Flood AdvisoryJAXBradford, Clay117 min
Aug 23, 6:02 PM EDTTornado WarningJAXDuval13 min
Aug 23, 6:12 PM EDTAreal Flood AdvisoryJAXDuval, Saint Johns2 hr
Aug 23, 6:24 PM EDTSpecial Weather StatementJAXSaint Johns36 min
Aug 23, 6:31 PM EDTSpecial Marine WarningJAX43 min
Aug 22, 8:14 PM EDTAreal Flood AdvisoryJAXJeff Davis105 min
Aug 22, 8:37 PM EDTAreal Flood AdvisoryJAXGlynn67 min
Aug 22, 9:05 PM EDTAreal Flood AdvisoryJAXCoffee, Jeff Davis54 min
Aug 22, 9:21 PM EDTFlash Flood WarningJAXCoffee, Jeff Davis3 hr
Aug 23, 1:56 PM EDTAreal Flood AdvisoryJAXAppling2 hr
Aug 23, 2:36 PM EDTSpecial Weather StatementJAXGlynn24 min
Aug 23, 2:57 PM EDTSpecial Weather StatementJAXGlynn33 min
Aug 23, 3:12 PM EDTAreal Flood AdvisoryJAXCamden, Glynn2 hr
Aug 23, 3:21 PM EDTAreal Flood AdvisoryJAXJeff Davis3 hr
Aug 23, 6:43 PM EDTAreal Flood AdvisoryJAXAtkinson, Charlton, Clinch, Echols, Ware2 hr

Nearby

Areal Flood Advisories in Georgia, 2025Every areal flood advisory in 2025

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.