Alert archive / Washington / Areal Flood Warnings in 2021

Areal Flood Warning 1, NWS Seattle, WA

January 2, 20219 counties in Washington

NWS Seattle, WA issued this areal flood warning at Jan 2, 2021, 8:48 PM PST for 9 counties in Washington. It was in force for 56 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Jan 2, 2021, 8:48 PM PST (04:48 UTC)
Expired
Jan 2, 2021, 9:44 PM PST
In force
56 min
Issued by
NWS Seattle, WA
Area
Storm-based polygon
Flood severity
None

Counties Grays Harbor County, WA, Island County, WA, Jefferson County, WA, King County, WA, Kitsap County, WA, Mason County, WA, Pierce County, WA, Snohomish County, WA, Thurston County, WA

The radar

The Seattle radar (KATX), 77 km from the middle of the area, began a volume at 04:46 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.

What forecasters said that day

The local office's own words before this areal 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 areal flood warning went out at Jan 2, 7:40 PM PST, 1 hour 8 minutes earlier.

Area forecast discussion, Jan 2, 7:40 PM PST, 1 hour 8 minutes before
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In the hours before

Special weather statement, Jan 2, 3:00 PM PST, 5 hours 48 minutes before
Special Weather Statement
National Weather Service Seattle WA
300 PM PST Sat Jan 2 2021

WAZ001-503-504-506-507-509>517-555-556-558-559-567>569-032300-
San Juan County-Western Whatcom County-Southwest Interior-
Western Skagit County-Everett and Vicinity-Tacoma Area-
Admiralty Inlet Area-Hood Canal Area-Lower Chehalis Valley Area-
Olympics-Eastern Strait of Juan de Fuca-
Western Strait of Juan De Fuca-North Coast-Central Coast-
East Puget Sound Lowlands-Bellevue and Vicinity-
Seattle and Vicinity-Bremerton and Vicinity-
Cascades of Whatcom and Skagit Counties-
Cascades of Snohomish and King Counties-
Cascades of Pierce and Lewis Counties-
300 PM PST Sat Jan 2 2021

...HEAVY RAINFALL THROUGH SUNDAY WILL LEAD TO AN INCREASED THREAT
OF LANDSLIDES IN WESTERN WASHINGTON...

Recent rainfall across the region has increased soil moisture to
high levels across western Washington. Heavy rain has occurred
over the Olympic Peninsula this morning and continues to push
inland. Additional rainfall of 2 to 6 inches is expected through
Sunday. This amount of rain will put extra pressure on soil
instability, leading to an increased threat of landslides. Areas
above 5000 feet in elevation will see some of the precipitation as
snow and not be as affected.

For more information about current conditions, visit
www.weather.gov/seattle, select Hydrology, and then scroll down
for the links to the landslide information pages.

For more information on landslides, visit the website for the
Washington State Department of Natural Resources landslide
geologic hazards at: http://bit.ly/2mtA3wn

www.weather.gov/seattle
Local storm report, Jan 2, 5:39 PM PST, 3 hours 9 minutes before
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<head>
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  <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.
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      <p id="message2">
        Please try again in a few minutes.
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      <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 Seattle, WA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jan 2, 5:17 PM PSTRiver Flood WarningSEWClallam11 hr
Jan 2, 8:00 PM PSTRiver Flood WarningSEWGrays Harbor26 hr
Jan 2, 9:40 PM PSTAreal Flood AdvisorySEWIsland, King, Kitsap, Mason, Pierce, Snohomish2 hr
Jan 2, 11:41 PM PSTAreal Flood AdvisorySEWKing, Lewis, Pierce, Snohomish, Thurston2 hr
Jan 3, 12:42 AM PSTRiver Flood WarningSEWLewis5 hr
Jan 3, 3:06 AM PSTGale WatchSEW11 hr
Jan 3, 3:06 AM PSTSmall Craft AdvisorySEW51 hr
Jan 3, 3:21 AM PSTRiver Flood WarningSEWLewis18 hr
Jan 3, 4:31 AM PSTRiver Flood WarningSEWThurston35 hr
Jan 3, 6:16 AM PSTRiver Flood WarningSEWGrays Harbor, Thurston4 days
Jan 3, 6:16 AM PSTRiver Flood WarningSEWGrays Harbor6 days
Jan 3, 6:18 AM PSTWinter Storm WatchSEW6 hr
Jan 3, 12:37 PM PSTWinter Storm WarningSEW37 hr
Jan 3, 2:20 PM PSTGale WarningSEW20 hr
Jan 3, 2:20 PM PSTSmall Craft AdvisorySEW9 days
Jan 3, 2:27 PM PSTWind AdvisorySEW14 hr

Nearby

Areal Flood Warnings in Washington, 2021Every areal flood warning in 2021

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.