Alert archive / Pennsylvania / River Flood Warnings in 2024

River Flood Warning 35, NWS State College, PA

August 10, 2024Northumberland County, Union County, Pennsylvania

NWS State College, PA issued this river flood warning at Aug 10, 2024, 12:05 AM EDT for Northumberland County, Union County, Pennsylvania. It took effect at Aug 10, 2024, 7:47 AM EDT. It was in force for 32 hr.

The area

The counties it named.

The facts

Issued: Aug 10, 2024, 12:05 AM EDT (04:05 UTC)
In effect from: Aug 10, 2024, 7:47 AM EDT
Expired: Aug 11, 2024, 3:35 PM EDT
In force: 32 hr
Issued by: NWS State College, PA
Area: Storm-based polygon
Flood severity: Minor

Counties Northumberland County, PA, Union County, PA

The radar

The State College radar (KCCX), 94 km from the middle of the area, began a volume at 04:06 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 West Branch Susquehanna River at West Milton (ILTP1). The gauge peaked at 19.02 ft at Aug 10, 2024, 6:00 PM EDT.

Action stage: 16 ft
Minor stage: 19 ft
Moderate stage: 22 ft
Major stage: 25 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 01553240, 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 State College, PA wrote its last area forecast discussion before this river flood warning went out at Aug 9, 6:48 PM EDT, 5 hours 17 minutes earlier.

Area forecast discussion, Aug 9, 6:48 PM EDT, 5 hours 17 minutes before

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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>
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Hazardous weather outlook, Aug 9, 3:43 PM EDT, 8 hours 22 minutes before

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<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>
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In the hours before

Local storm report, Aug 9, 6:13 PM EDT, 5 hours 52 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>

Local storm report, Aug 9, 6:16 PM EDT, 5 hours 49 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 State College, PA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Aug 9, 9:56 PM EDT	River Flood Warning	CTP	Lycoming, Sullivan	6 hr
Aug 9, 11:28 PM EDT	River Flood Warning	CTP	Lycoming, Northumberland, Union	37 hr
Aug 9, 11:28 PM EDT	River Flood Warning	CTP	Lycoming	13 hr
Aug 10, 12:04 AM EDT	River Flood Warning	CTP	Lycoming	36 hr
Aug 10, 12:14 AM EDT	River Flood Warning	CTP	Northumberland, Union	37 hr
Aug 10, 5:19 AM EDT	Special Weather Statement	CTP	Cameron, Clearfield, Clinton, Elk, Lycoming, McKean and 4 more	116 min

Nearby

River Flood Warnings in Pennsylvania, 2024 Every river flood warning in 2024

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.