Alert archive / Pennsylvania / Areal Flood Advisories in 2019

Areal Flood Advisory 14, NWS Philadelphia/Mount Holly

March 21, 2019Berks County, Chester County, Montgomery County, Pennsylvania; New Castle County, Delaware

NWS Philadelphia/Mount Holly issued this areal flood advisory at Mar 21, 2019, 4:19 PM EDT for Berks County, Chester County, Montgomery County, Pennsylvania; New Castle County, Delaware. It was in force for 12 hr.

The area

The counties it named.

The facts

Issued: Mar 21, 2019, 4:19 PM EDT (20:19 UTC)
Expired: Mar 22, 2019, 4:15 AM EDT
In force: 12 hr
Issued by: NWS Philadelphia/Mount Holly
Area: Storm-based polygon

Counties New Castle County, DE, Berks County, PA, Chester County, PA, Montgomery County, PA

The radar

The Philadelphia radar (KDIX), 108 km from the middle of the area, began a volume at 20:21 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.

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 Mar 21, 4:14 PM EDT, 5 minutes earlier.

Area forecast discussion, Mar 21, 4:14 PM EDT, 5 minutes before

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Hazardous weather outlook, Mar 21, 4:17 PM EDT, 2 minutes before

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  <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.
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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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The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 20, 8:18 PM EDT	Coastal Flood Advisory	PHI	Atlantic, Burlington, Camden, Cape May, Cumberland, Gloucester and 5 more	34 hr
Mar 21, 3:22 AM EDT	Flood Watch	PHI	Burlington, Camden, Gloucester, Hunterdon, Mercer, Middlesex and 4 more	24 hr
Mar 21, 3:23 AM EDT	Gale Watch	PHI		12 hr
Mar 21, 5:20 AM EDT	Coastal Flood Warning	PHI	Middlesex, Monmouth	20 hr
Mar 21, 2:57 PM EDT	Gale Warning	PHI		51 hr

Nearby

Areal Flood Advisories in Pennsylvania, 2019 Areal Flood Advisories in Delaware, 2019 Every areal flood advisory in 2019

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive.