Alert archive / Pennsylvania / River Flood Warnings in 2018

River Flood Warning 5, NWS Pittsburgh, PA

January 13, 2018Allegheny County, Pennsylvania

NWS Pittsburgh, PA issued this river flood warning at Jan 13, 2018, 2:42 AM EST for Allegheny County, Pennsylvania. It took effect at Jan 13, 2018, 5:24 AM EST. It was in force for 12 hr.

The area

The counties it named.

The facts

Issued: Jan 13, 2018, 2:42 AM EST (07:42 UTC)
In effect from: Jan 13, 2018, 5:24 AM EST
Expired: Jan 13, 2018, 5:00 PM EST
In force: 12 hr
Issued by: NWS Pittsburgh, PA
Area: Storm-based polygon
Flood severity: Minor

County Allegheny County, PA

The radar

The Pittsburgh radar (KPBZ), 21 km from the middle of the area, began a volume at 07:44 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 river

Written for the forecast point Allegheny River at C.W. Bill Young Lock and Dam (ACMP1).

Action stage: 15 ft
Minor stage: 17 ft
Moderate stage: 20 ft
Major stage: 23 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 03049640, one reading an hour, from a day before the product to a day after it ended. Flood stages are today's.

What forecasters said that day

The local office's own words before this river flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Pittsburgh, PA wrote its last area forecast discussion before this river flood warning went out at Jan 12, 4:47 PM EST, 9 hours 55 minutes earlier.

Area forecast discussion, Jan 12, 4:47 PM EST, 9 hours 55 minutes before

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Hazardous weather outlook, Jan 12, 2:58 PM EST, 11 hours 44 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 Pittsburgh, PA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jan 12, 11:47 PM EST	River Flood Warning	PBZ	Armstrong, Clarion	13 hr
Jan 13, 12:22 AM EST	River Flood Warning	PBZ	Armstrong	8 hr
Jan 13, 7:15 AM EST	River Flood Warning	PBZ	Allegheny	27 hr
Jan 13, 11:15 AM EST	Areal Flood Warning	PBZ	Beaver, Butler	6 hr
Jan 13, 11:19 AM EST	Areal Flood Advisory	PBZ	Allegheny	9 hr
Jan 13, 1:43 PM EST	Wind Chill Advisory	PBZ	Fayette, Forest, Jefferson, Westmoreland	20 hr
Jan 13, 10:32 AM EST	River Flood Warning	PBZ	Marshall	32 hr

Nearby

River Flood Warnings in Pennsylvania, 2018 Every river flood warning 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; radar from the NEXRAD Level II archive; the gauge from the NWS water service and the USGS.