Alert archive / Washington / River Flood Warnings in 2020

River Flood Warning 4, NWS Seattle, WA

January 6, 2020Lewis County, Washington

NWS Seattle, WA issued this river flood warning at Jan 6, 2020, 6:00 PM PST for Lewis County, Washington. It took effect at Jan 6, 2020, 9:53 PM PST. It was in force for 21 hr.

The area

The counties it named.

The facts

Issued: Jan 6, 2020, 6:00 PM PST (02:00 UTC)
In effect from: Jan 6, 2020, 9:53 PM PST
Expired: Jan 7, 2020, 6:49 PM PST
In force: 21 hr
Issued by: NWS Seattle, WA
Area: Storm-based polygon
Flood severity: Minor

County Lewis County, WA

The radar

The Portland,OR radar (KRTX), 106 km from the middle of the area, began a volume at 02:02 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 Newaukum River near Chehalis (NEWW1).

Action stage: 200.5 ft
Minor stage: 202.5 ft
Moderate stage: 204.5 ft
Major stage: 205.5 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 12025000, 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 Seattle, WA wrote its last area forecast discussion before this river flood warning went out at Jan 6, 3:42 PM PST, 2 hours 18 minutes earlier.

Area forecast discussion, Jan 6, 3:42 PM PST, 2 hours 18 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, Jan 6, 12:30 PM PST, 5 hours 30 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 Seattle, WA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jan 6, 9:08 PM PST	River Flood Warning	SEW	King	25 hr
Jan 6, 9:08 PM PST	River Flood Warning	SEW	King	51 hr
Jan 6, 10:21 PM PST	River Flood Warning	SEW	Thurston	66 hr
Jan 7, 1:39 AM PST	River Flood Warning	SEW	Grays Harbor	32 hr
Jan 7, 1:59 AM PST	River Flood Warning	SEW	Snohomish	29 hr
Jan 7, 1:59 AM PST	River Flood Warning	SEW	Snohomish	39 hr
Jan 7, 3:02 AM PST	Gale Warning	SEW		30 hr
Jan 7, 3:32 AM PST	Winter Weather Advisory	SEW		30 hr
Jan 7, 4:34 AM PST	River Flood Warning	SEW	Clallam	18 hr
Jan 7, 5:57 AM PST	River Flood Warning	SEW	Snohomish	15 hr
Jan 7, 6:34 AM PST	River Flood Warning	SEW	Snohomish	23 hr
Jan 7, 6:34 AM PST	River Flood Warning	SEW	Snohomish	18 hr
Jan 7, 6:37 AM PST	River Flood Warning	SEW	Thurston	47 hr
Jan 7, 8:00 AM PST	River Flood Warning	SEW	Skagit	15 hr
Jan 7, 8:00 AM PST	River Flood Warning	SEW	Grays Harbor	4 days
Jan 7, 10:38 AM PST	Small Craft Advisory	SEW		29 hr
Jan 7, 11:22 AM PST	River Flood Warning	SEW	Snohomish	44 hr
Jan 7, 2:39 PM PST	Small Craft Advisory	SEW		48 hr

Nearby

River Flood Warnings in Washington, 2020 Every river flood warning 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.