Alert archive / Pennsylvania / River Flood Warnings in 2011

River Flood Warning 15, NWS Pittsburgh, PA

March 6, 2011Allegheny County, Pennsylvania

NWS Pittsburgh, PA issued this river flood warning at Mar 6, 2011, 3:24 PM EST for Allegheny County, Pennsylvania. It took effect at Mar 7, 2011, 7:00 AM EST. It was in force for 112 min.

The area

The counties it named.

The facts

Issued: Mar 6, 2011, 3:24 PM EST (20:24 UTC)
In effect from: Mar 7, 2011, 7:00 AM EST
Expired: Mar 7, 2011, 8:52 AM EST
In force: 112 min
Issued by: NWS Pittsburgh, PA
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 20:27 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 Ohio River at Pittsburgh (PTTP1).

Action stage: 18 ft
Minor stage: 22 ft
Moderate stage: 25 ft
Major stage: 28 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 03085152, 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 Mar 6, 10:20 AM EST, 5 hours 4 minutes earlier.

Area forecast discussion, Mar 6, 10:20 AM EST, 5 hours 4 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>

Hazardous weather outlook, Mar 6, 2:46 PM EST, 38 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>

In the hours before

Local storm report, Mar 6, 12:39 PM EST, 2 hours 45 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
Mar 5, 7:50 PM EST	Winter Weather Advisory	PBZ	Butler, Clarion, Forest, Jefferson, Lawrence, Mercer and 1 more	19 hr
Mar 6, 6:58 AM EST	River Flood Warning	PBZ	Clarion, Forest, Jefferson	21 hr
Mar 6, 10:05 AM EST	River Flood Warning	PBZ	Allegheny, Clarion	18 hr
Mar 6, 10:05 AM EST	River Flood Warning	PBZ	Allegheny	18 hr
Mar 6, 10:05 AM EST	River Flood Warning	PBZ	Allegheny, Westmoreland	19 hr
Mar 6, 10:05 AM EST	River Flood Warning	PBZ	Allegheny	23 hr
Mar 6, 12:36 PM EST	Areal Flood Warning	PBZ	Forest	8 hr
Mar 6, 2:41 PM EST	Winter Weather Advisory	PBZ	Fayette, Westmoreland	6 hr
Mar 6, 5:37 PM EST	Special Weather Statement	PBZ	Westmoreland	113 min

Nearby

River Flood Warnings in Pennsylvania, 2011 Every river flood warning in 2011

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.