Alert archive / Pennsylvania / Areal Flood Warnings in 2019

Areal Flood Warning 12, NWS Philadelphia/Mount Holly

April 20, 2019Montgomery County, Pennsylvania

NWS Philadelphia/Mount Holly issued this areal flood warning at Apr 20, 2019, 10:38 AM EDT for Montgomery County, Pennsylvania. It was in force for 6 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: Apr 20, 2019, 10:38 AM EDT (14:38 UTC)
Expired: Apr 20, 2019, 4:54 PM EDT
In force: 6 hr
Issued by: NWS Philadelphia/Mount Holly
Area: Storm-based polygon
Flood severity: None

County Montgomery County, PA

The radar

The Philadelphia radar (KDIX), 86 km from the middle of the area, began a volume at 14:37 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 warning 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 warning went out at Apr 20, 9:39 AM EDT, 59 minutes earlier.

Area forecast discussion, Apr 20, 9:39 AM EDT, 59 minutes before

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Hazardous weather outlook, Apr 20, 9:34 AM EDT, 1 hour 4 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.
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        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
Apr 19, 10:11 PM EDT	Special Marine Warning	PHI		64 min
Apr 19, 10:44 PM EDT	Special Weather Statement	PHI	Cape May	31 min
Apr 19, 11:09 PM EDT	Special Marine Warning	PHI		51 min
Apr 19, 11:12 PM EDT	Coastal Flood Statement	PHI	Ocean	43 hr
Apr 19, 11:24 PM EDT	Special Marine Warning	PHI		51 min
Apr 19, 11:33 PM EDT	Special Weather Statement	PHI	Atlantic, Cape May	27 min
Apr 19, 11:57 PM EDT	Special Weather Statement	PHI	Atlantic, Cape May, Ocean	33 min
Apr 19, 11:59 PM EDT	Special Marine Warning	PHI		61 min
Apr 20, 12:32 AM EDT	Special Weather Statement	PHI	Atlantic, Cape May, Monmouth, Ocean	58 min
Apr 20, 12:34 AM EDT	Areal Flood Advisory	PHI	Atlantic, Cape May, Cumberland	2 hr
Apr 20, 12:36 AM EDT	Special Marine Warning	PHI		54 min
Apr 20, 12:56 AM EDT	Special Marine Warning	PHI		64 min
Apr 20, 1:27 AM EDT	Areal Flood Advisory	PHI	Atlantic, Burlington, Middlesex, Monmouth, Ocean	74 min
Apr 20, 4:22 AM EDT	Special Marine Warning	PHI		53 min
Apr 20, 5:26 AM EDT	Areal Flood Advisory	PHI	Burlington, Camden, Gloucester, Mercer, Monmouth, Salem	4 hr
Apr 20, 6:30 AM EDT	Areal Flood Advisory	PHI	Atlantic, Cape May	4 hr
Apr 20, 8:56 AM EDT	Areal Flood Advisory	PHI	Atlantic, Burlington, Monmouth, Ocean	4 hr
Apr 20, 4:01 PM EDT	Coastal Flood Advisory	PHI	Burlington, Camden, Gloucester, Mercer	13 hr
Apr 20, 10:54 AM EDT	River Flood Warning	PHI	Chester	5 hr
Apr 19, 9:38 PM EDT	Severe Thunderstorm Warning	PHI	Kent, Sussex	37 min
Apr 19, 9:53 PM EDT	Special Weather Statement	PHI	Sussex	37 min
Apr 19, 10:13 PM EDT	Special Weather Statement	PHI	Kent	32 min
Apr 19, 11:04 PM EDT	Special Weather Statement	PHI	Sussex	26 min
Apr 19, 11:35 PM EDT	Areal Flood Advisory	PHI	Sussex	2 hr
Apr 20, 1:16 AM EDT	Special Weather Statement	PHI	Kent, New Castle	29 min
Apr 20, 4:17 AM EDT	Special Weather Statement	PHI	Kent, Sussex	28 min
Apr 20, 6:28 AM EDT	Areal Flood Advisory	PHI	Kent, Sussex	4 hr

Nearby

Areal Flood Warnings in Pennsylvania, 2019 Every areal flood warning 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.