Alert archive / Florida / Flash Flood Watches in 2014

Flash Flood Watch 8, NWS Tallahassee, FL

May 29, 20144 counties in Florida; Coffee County, Geneva County, Alabama

NWS Tallahassee, FL issued this flash flood watch at May 29, 2014, 2:51 AM CDT for 4 counties in Florida; Coffee County, Geneva County, Alabama. It was in force for 30 hr.

The area

The counties it named.

The facts

Issued: May 29, 2014, 2:51 AM CDT (07:51 UTC)
Expired: May 30, 2014, 9:14 AM CDT
In force: 30 hr
Issued by: NWS Tallahassee, FL
Flood severity: None

Counties Coffee County, AL, Geneva County, AL, Bay County, FL, Holmes County, FL, Walton County, FL, Washington County, FL

The radar

The Eglin Afb radar (KEVX), 28 km from the middle of the area, began a volume at 07:53 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

Birmingham, AL (KBMX), launched 00:00Z, 7.9 hours before the alert went out and 278 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: 131 J/kg
Mixed-layer CIN: -62 J/kg
Mixed-layer LCL: 855 m above ground
0-6 km bulk shear: 13 kt
0-1 km storm-relative helicity: 34 m²/s²
0-3 km storm-relative helicity: 51 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 flash flood watch 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 flash flood watch went out at May 29, 2:17 AM CDT, 34 minutes earlier.

Area forecast discussion, May 29, 2:17 AM CDT, 34 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
May 29, 9:13 AM CDT	Flash Flood Warning	TAE	Walton	4 hr
May 29, 9:57 AM CDT	Rip Current Statement	TAE	Bay, Walton	14 hr
May 29, 4:36 PM CDT	Severe Thunderstorm Warning	TAE	Lowndes	24 min

Nearby

Flash Flood Watches in Florida, 2014 Flash Flood Watches in Alabama, 2014 Every flash flood watch in 2014

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.