Alert archive / Florida / Areal Flood Advisories in 2021

Areal Flood Advisory 3, NWS Tallahassee, FL

January 2, 2021Franklin County, Florida

NWS Tallahassee, FL issued this areal flood advisory at Jan 2, 2021, 10:32 AM EST for Franklin County, Florida. It was in force for 3 hr.

The area

The counties it named.

The facts

Issued: Jan 2, 2021, 10:32 AM EST (15:32 UTC)
Expired: Jan 2, 2021, 1:45 PM EST
In force: 3 hr
Issued by: NWS Tallahassee, FL
Area: Storm-based polygon

County Franklin County, FL

The radar

The Tallahassee radar (KTLH), 79 km from the middle of the area, began a volume at 15:32 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, 3.5 hours before the alert went out and 308 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 794 m above ground
0-6 km bulk shear: 46 kt
0-1 km storm-relative helicity: 191 m²/s²
0-3 km storm-relative helicity: 214 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 Tallahassee, FL wrote its last area forecast discussion before this areal flood advisory went out at Jan 2, 9:47 AM EST, 45 minutes earlier.

Area forecast discussion, Jan 2, 9:47 AM EST, 45 minutes before

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In the hours before

Local storm report, Jan 2, 9:20 AM EST, 1 hour 12 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 Tallahassee, FL issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jan 1, 8:44 PM EST	Special Marine Warning	TAE		61 min
Jan 2, 7:07 AM EST	Special Marine Warning	TAE		3 hr
Jan 2, 8:00 AM EST	Areal Flood Advisory	TAE	Franklin, Jefferson, Leon, Liberty, Madison, Wakulla	3 hr
Jan 2, 8:33 AM EST	Marine Dense Fog Advisory	TAE		7 hr
Jan 2, 8:41 AM EST	Flash Flood Warning	TAE	Jefferson, Leon, Madison, Wakulla	5 hr
Jan 2, 10:13 AM EST	River Flood Warning	TAE	Leon, Wakulla	4 days
Jan 2, 12:45 PM EST	Areal Flood Advisory	TAE	Bay	3 hr
Jan 2, 2:11 PM EST	Flash Flood Warning	TAE	Bay	77 min
Jan 2, 3:00 PM EST	Areal Flood Advisory	TAE	Franklin	5 hr
Jan 2, 3:10 PM EST	Areal Flood Advisory	TAE	Wakulla	5 hr
Jan 2, 4:20 PM EST	Areal Flood Advisory	TAE	Jefferson, Leon	4 hr
Jan 2, 8:51 AM EST	Areal Flood Advisory	TAE	Berrien, Brooks, Cook, Lanier, Lowndes, Thomas	3 hr
Jan 2, 9:13 AM EST	Flash Flood Warning	TAE	Berrien, Brooks, Lanier, Lowndes, Thomas	6 hr
Jan 2, 3:57 PM EST	Areal Flood Advisory	TAE	Decatur	2 hr
Jan 2, 5:24 PM EST	Areal Flood Advisory	TAE	Brooks, Lowndes, Thomas	3 hr
Jan 2, 6:14 PM EST	Areal Flood Advisory	TAE	Berrien, Colquitt, Cook, Irwin, Tift	3 hr
Jan 2, 6:32 PM EST	Areal Flood Advisory	TAE	Ben Hill	3 hr

Nearby

Areal Flood Advisories in Florida, 2021 Every areal flood advisory in 2021

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.