Alert archive / Florida / Areal Flood Warnings in 2017

Areal Flood Warning 10, NWS Miami, FL

September 10, 20175 counties in Florida

NWS Miami, FL issued this areal flood warning at Sep 10, 2017, 8:29 AM EDT for 5 counties in Florida. It was in force for 12 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Sep 10, 2017, 8:29 AM EDT (12:29 UTC)
Expired: Sep 10, 2017, 8:30 PM EDT
In force: 12 hr
Issued by: NWS Miami, FL
Area: Storm-based polygon
Flood severity: None

Counties Broward County, FL, Collier County, FL, Glades County, FL, Hendry County, FL, Palm Beach County, FL

The radar

The Miami radar (KAMX), 110 km from the middle of the area, began a volume at 12:30 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

Tampa Bay, FL (KTBW), launched 12:00Z, 0.5 hours before the alert went out and 200 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: 103 J/kg
Mixed-layer CIN: -80 J/kg
Mixed-layer LCL: 872 m above ground
0-6 km bulk shear: 15 kt
0-1 km storm-relative helicity: 8 m²/s²
0-3 km storm-relative helicity: 186 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 warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Miami, FL wrote its last area forecast discussion before this areal flood warning went out at Sep 10, 7:38 AM EDT, 51 minutes earlier.

Area forecast discussion, Sep 10, 7:38 AM EDT, 51 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>

Hazardous weather outlook, Sep 10, 5:50 AM EDT, 2 hours 39 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 10, 7:46 AM EDT, 43 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>

Local storm report, Sep 10, 7:51 AM EDT, 38 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>

Local storm report, Sep 10, 7:56 AM EDT, 33 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>

Local storm report, Sep 10, 8:00 AM EDT, 29 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>

Local storm report, Sep 10, 8:12 AM EDT, 17 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>

Local storm report, Sep 10, 8:27 AM EDT, 2 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 Miami, FL issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Sep 9, 8:14 PM EDT	Special Marine Warning	MFL		46 min
Sep 10, 2:23 AM EDT	Special Marine Warning	MFL		37 min
Sep 10, 2:45 AM EDT	Special Marine Warning	MFL		30 min
Sep 10, 3:05 AM EDT	Special Marine Warning	MFL		25 min
Sep 10, 3:29 AM EDT	Special Marine Warning	MFL		46 min
Sep 10, 3:46 AM EDT	Tornado Warning	MFL	Broward, Palm Beach	29 min
Sep 10, 4:19 AM EDT	Special Marine Warning	MFL		26 min
Sep 10, 4:44 AM EDT	Areal Flood Warning	MFL	Broward, Collier, Hendry, Miami-Dade, Monroe	12 hr
Sep 10, 4:54 AM EDT	Special Marine Warning	MFL		36 min
Sep 10, 6:14 AM EDT	Special Marine Warning	MFL		16 min
Sep 10, 6:21 AM EDT	Tornado Warning	MFL	Palm Beach	28 min
Sep 10, 6:55 AM EDT	Special Marine Warning	MFL		35 min
Sep 10, 7:16 AM EDT	Special Marine Warning	MFL		29 min
Sep 10, 7:28 AM EDT	Special Marine Warning	MFL		17 min
Sep 10, 7:35 AM EDT	Tornado Warning	MFL	Palm Beach	14 min
Sep 10, 7:36 AM EDT	Tornado Warning	MFL	Broward, Miami-Dade	24 min
Sep 10, 7:52 AM EDT	Special Marine Warning	MFL		38 min
Sep 10, 8:08 AM EDT	Special Marine Warning	MFL		37 min
Sep 10, 8:37 AM EDT	Areal Flood Warning	MFL	Broward, Collier, Hendry, Palm Beach	12 hr
Sep 10, 9:17 AM EDT	Special Weather Statement	MFL	Miami-Dade, Monroe	88 min
Sep 10, 9:42 AM EDT	Tornado Warning	MFL	Palm Beach	18 min
Sep 10, 9:44 AM EDT	Special Marine Warning	MFL		31 min
Sep 10, 10:13 AM EDT	Special Marine Warning	MFL		32 min
Sep 10, 10:45 AM EDT	Special Weather Statement	MFL	Miami-Dade, Monroe	45 min
Sep 10, 10:57 AM EDT	River Flood Warning	MFL	Glades	13 days
Sep 10, 11:48 AM EDT	Special Weather Statement	MFL	Miami-Dade, Monroe	87 min
Sep 10, 12:25 PM EDT	Extreme Wind Warning	MFL	Collier	3 hr
Sep 10, 1:13 PM EDT	Special Weather Statement	MFL	Miami-Dade, Monroe	92 min
Sep 10, 1:23 PM EDT	Special Marine Warning	MFL		37 min
Sep 10, 1:30 PM EDT	Special Weather Statement	MFL	Miami-Dade	90 min
Sep 10, 1:48 PM EDT	Special Marine Warning	MFL		27 min
Sep 10, 1:49 PM EDT	Tornado Warning	MFL	Broward, Miami-Dade, Palm Beach	26 min
Sep 10, 1:55 PM EDT	Special Weather Statement	MFL	Miami-Dade	65 min
Sep 10, 2:13 PM EDT	Special Marine Warning	MFL		32 min
Sep 10, 2:24 PM EDT	Tornado Warning	MFL	Broward, Palm Beach	21 min
Sep 10, 2:40 PM EDT	Tornado Warning	MFL	Palm Beach	20 min
Sep 10, 3:10 PM EDT	Special Marine Warning	MFL		95 min
Sep 10, 3:12 PM EDT	Flash Flood Warning Emergency	MFL	Collier	3 hr
Sep 10, 3:15 PM EDT	Tornado Warning	MFL	Miami-Dade	15 min
Sep 10, 3:27 PM EDT	Extreme Wind Warning	MFL	Collier, Hendry	2 hr
Sep 10, 3:29 PM EDT	Special Marine Warning	MFL		31 min
Sep 10, 3:48 PM EDT	Tornado Warning	MFL	Palm Beach	27 min
Sep 10, 3:53 PM EDT	Tornado Warning	MFL	Broward, Palm Beach	37 min
Sep 10, 4:23 PM EDT	Special Marine Warning	MFL		37 min
Sep 10, 5:14 PM EDT	Special Marine Warning	MFL		16 min
Sep 10, 5:23 PM EDT	Special Marine Warning	MFL		97 min
Sep 10, 6:00 PM EDT	Areal Flood Warning	MFL	Collier	3 hr
Sep 10, 7:00 PM EDT	Special Marine Warning	MFL		30 min
Sep 10, 7:37 PM EDT	Special Marine Warning	MFL		23 min

Nearby

Areal Flood Warnings in Florida, 2017 Every areal flood warning in 2017

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.