Alert archive / Washington / River Flood Watches in 2020

River Flood Watch 3, NWS Spokane, WA

May 18, 2020Douglas County, Okanogan County, Washington

NWS Spokane, WA issued this river flood watch at May 18, 2020, 10:43 AM PDT for Douglas County, Okanogan County, Washington. It took effect at May 19, 2020, 7:24 AM PDT. It was in force for 3 hr.

The area

The counties it named.

The facts

Issued: May 18, 2020, 10:43 AM PDT (17:43 UTC)
In effect from: May 19, 2020, 7:24 AM PDT
Expired: May 19, 2020, 10:19 AM PDT
In force: 3 hr
Issued by: NWS Spokane, WA
Area: Storm-based polygon
Flood severity: None

Counties Douglas County, WA, Okanogan County, WA

The radar

The Spokane radar (KOTX), 164 km from the middle of the area, began a volume at 17:44 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 Okanogan River near Tonasket (TONW1). The gauge peaked at 15.09 ft at May 20, 2020, 9:00 AM PDT.

Action stage: 14 ft
Minor stage: 15 ft
Moderate stage: 17 ft
Major stage: 18 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 12445000, 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 18, 10:26 AM PDT, 17 minutes earlier.

Area forecast discussion, May 18, 10:26 AM PDT, 17 minutes before

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Hazardous weather outlook, May 18, 5:00 AM PDT, 5 hours 43 minutes before

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  <meta charset="utf-8">
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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.
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The office that day

Everything else NWS Spokane, WA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 18, 3:49 AM PDT	Flash Flood Watch	OTX	Chelan, Okanogan	17 hr
May 18, 10:49 AM PDT	River Flood Watch	OTX	Ferry, Okanogan	8 hr
May 18, 1:09 PM PDT	Special Weather Statement	OTX	Lincoln	51 min
May 18, 1:20 PM PDT	Areal Flood Advisory	OTX	Lincoln	115 min
May 18, 1:43 PM PDT	Special Weather Statement	OTX	Stevens	47 min
May 18, 4:22 PM PDT	Areal Flood Advisory	OTX	Douglas, Grant	3 hr
May 17, 5:03 PM PDT	Special Weather Statement	OTX	Latah	27 min
May 17, 5:16 PM PDT	Special Weather Statement	OTX	Bonner	44 min
May 17, 5:21 PM PDT	Special Weather Statement	OTX	Kootenai	24 min
May 17, 5:55 PM PDT	Special Weather Statement	OTX	Kootenai	35 min
May 17, 6:16 PM PDT	Special Weather Statement	OTX	Bonner	29 min
May 17, 6:18 PM PDT	Special Weather Statement	OTX	Shoshone	27 min
May 18, 3:24 PM PDT	Special Weather Statement	OTX	Latah	51 min

Nearby

River Flood Watches in Washington, 2020 Every river flood watch in 2020

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.