Alert archive / New Jersey / Areal Flood Advisories in 2018

Areal Flood Advisory 96, NWS Philadelphia/Mount Holly

June 11, 20184 counties in New Jersey

NWS Philadelphia/Mount Holly issued this areal flood advisory at Jun 11, 2018, 3:54 AM EDT for 4 counties in New Jersey. It was in force for 7 hr.

The area

The counties it named.

The facts

Issued: Jun 11, 2018, 3:54 AM EDT (07:54 UTC)
Expired: Jun 11, 2018, 11:09 AM EDT
In force: 7 hr
Issued by: NWS Philadelphia/Mount Holly
Area: Storm-based polygon

Counties Atlantic County, NJ, Cape May County, NJ, Cumberland County, NJ, Gloucester County, NJ

The radar

The Philadelphia radar (KDIX), 76 km from the middle of the area, began a volume at 07:55 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

Washington/Dulle, VA (KIAD), launched 00:00Z, 7.9 hours before the alert went out and 218 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: 525 J/kg
Mixed-layer CIN: -4 J/kg
Mixed-layer LCL: 747 m above ground
0-6 km bulk shear: 27 kt
0-1 km storm-relative helicity: 87 m²/s²
0-3 km storm-relative helicity: 205 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 3.2

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 11, 3:47 AM EDT, 7 minutes earlier.

Area forecast discussion, Jun 11, 3:47 AM EDT, 7 minutes before

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Hazardous weather outlook, Jun 11, 3:52 AM EDT, 2 minutes before

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        The site you requested is temporarily down for maintenance or an unexpected outage.
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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 11, 2:02 AM EDT, 1 hour 52 minutes before

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      <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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      <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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Local storm report, Jun 11, 2:22 AM EDT, 1 hour 32 minutes before

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      <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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Local storm report, Jun 11, 2:42 AM EDT, 1 hour 12 minutes before

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<head>
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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.
      </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>
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Local storm report, Jun 11, 2:54 AM EDT, 1 hour before

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      <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>
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</body>
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Local storm report, Jun 11, 3:14 AM EDT, 40 minutes before

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</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, Jun 11, 3:49 AM EDT, 5 minutes before

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<head>
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  <title>Service Notice</title>
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</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 Philadelphia/Mount Holly issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 10, 10:38 PM EDT	Areal Flood Warning	PHI	Burlington, Camden	20 hr
Jun 10, 11:33 PM EDT	Flash Flood Warning	PHI	Burlington, Camden	5 hr
Jun 11, 12:03 AM EDT	Areal Flood Warning	PHI	Ocean	7 hr
Jun 11, 12:53 AM EDT	Flash Flood Warning	PHI	Burlington, Ocean	4 hr
Jun 11, 1:16 AM EDT	Areal Flood Advisory	PHI	Camden, Gloucester, Salem	8 hr
Jun 11, 2:15 AM EDT	Areal Flood Advisory	PHI	Atlantic, Burlington, Camden, Gloucester, Ocean	7 hr
Jun 11, 3:16 AM EDT	Areal Flood Advisory	PHI	Cumberland, Salem	8 hr
Jun 11, 8:28 AM EDT	River Flood Warning	PHI	Burlington	58 hr
Jun 10, 8:29 PM EDT	Areal Flood Advisory	PHI	Berks, Chester, Montgomery	115 min
Jun 10, 9:52 PM EDT	Areal Flood Warning	PHI	Berks, Chester, Montgomery	18 hr
Jun 11, 3:28 AM EDT	River Flood Warning	PHI	Chester	5 hr
Jun 10, 8:13 PM EDT	Special Weather Statement	PHI	Sussex	47 min
Jun 10, 9:07 PM EDT	Areal Flood Advisory	PHI	Kent, Sussex	3 hr

Nearby

Areal Flood Advisories in New Jersey, 2018 Every areal flood advisory in 2018

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.