Alert archive / Washington / River Flood Watches in 2011

River Flood Watch 4, NWS Spokane, WA

May 13, 2011Chelan County, Washington

NWS Spokane, WA issued this river flood watch at May 13, 2011, 1:47 PM PDT for Chelan County, Washington. It took effect at May 16, 2011, 2:38 AM PDT. It was in force for 24 hr.

The area

The counties it named.

The facts

Issued: May 13, 2011, 1:47 PM PDT (20:47 UTC)
In effect from: May 16, 2011, 2:38 AM PDT
Expired: May 17, 2011, 2:32 AM PDT
In force: 24 hr
Issued by: NWS Spokane, WA
Flood severity: None

County Chelan County, WA

The radar

The Seattle radar (KATX), 144 km from the middle of the area, began a volume at 20:44 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 Stehekin River at Stehekin (STHW1). The gauge peaked at 22.51 ft at May 15, 2011, 9:00 PM PDT.

Action stage: 19.5 ft
Minor stage: 20.5 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 12451000, 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 watch went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Spokane, WA wrote its last area forecast discussion before this river flood watch went out at May 13, 1:14 PM PDT, 33 minutes earlier.

Area forecast discussion, May 13, 1:14 PM PDT, 33 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, May 13, 5:49 AM PDT, 7 hours 58 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 Spokane, WA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 13, 3:18 PM PDT	Areal Flood Warning	OTX	Asotin, Garfield	69 hr
May 13, 3:28 PM PDT	Areal Flood Warning	OTX	Chelan, Ferry, Okanogan, Pend Oreille, Spokane, Stevens	4 days
May 13, 1:47 PM PDT	River Flood Watch	OTX	Kootenai, Shoshone	4 days

Nearby

River Flood Watches in Washington, 2011 Every river flood watch 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.