Alert archive / Delaware / Areal Flood Advisories in 2013

Areal Flood Advisory 30, NWS Philadelphia/Mount Holly

June 3, 2013Sussex County, Delaware

NWS Philadelphia/Mount Holly issued this areal flood advisory at Jun 3, 2013, 2:36 PM EDT for Sussex County, Delaware. It was in force for 4 hr.

The area

The counties it named.

The facts

Issued: Jun 3, 2013, 2:36 PM EDT (18:36 UTC)
Expired: Jun 3, 2013, 6:30 PM EDT
In force: 4 hr
Issued by: NWS Philadelphia/Mount Holly
Area: Storm-based polygon

County Sussex County, DE

The radar

The Dover AFB radar (KDOX), 18 km from the middle of the area, began a volume at 18:36 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

Phillips Aaf/Abe, MD (KAPG), launched 12:00Z, 6.6 hours before the alert went out and 109 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: 1 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 862 m above ground
0-6 km bulk shear: 27 kt
0-1 km storm-relative helicity: 26 m²/s²
0-3 km storm-relative helicity: 73 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 Philadelphia/Mount Holly wrote its last area forecast discussion before this areal flood advisory went out at Jun 3, 10:50 AM EDT, 3 hours 46 minutes earlier.

Area forecast discussion, Jun 3, 10:50 AM EDT, 3 hours 46 minutes before

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Hazardous weather outlook, Jun 3, 3:40 AM EDT, 10 hours 56 minutes before

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<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.
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      <p id="message2">
        Please try again in a few minutes.
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        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
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In the hours before

Local storm report, Jun 3, 9:59 AM EDT, 4 hours 37 minutes before

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<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>
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The office that day

Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 2, 8:41 PM EDT	Special Weather Statement	PHI	Gloucester	49 min
Jun 2, 9:03 PM EDT	Severe Thunderstorm Warning	PHI	Atlantic, Camden, Gloucester, Salem	42 min
Jun 2, 11:19 PM EDT	Special Weather Statement	PHI	Middlesex	26 min
Jun 3, 7:54 AM EDT	Areal Flood Advisory	PHI	Burlington, Camden, Mercer, Middlesex, Monmouth, Somerset	51 min
Jun 3, 8:50 AM EDT	Areal Flood Advisory	PHI	Cape May	115 min
Jun 3, 6:11 PM EDT	Special Weather Statement	PHI	Monmouth	64 min
Jun 2, 8:00 PM EDT	Special Weather Statement	PHI	Montgomery	30 min
Jun 3, 8:02 AM EDT	Areal Flood Warning	PHI	Philadelphia	3 hr
Jun 2, 8:05 PM EDT	Special Weather Statement	PHI	Kent	40 min

Nearby

Areal Flood Advisories in Delaware, 2013 Every areal flood advisory in 2013

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.