Alert archive / Utah / River Flood Warnings in 2023

River Flood Warning 11, NWS Salt Lake City, UT

May 23, 2023Cache County, Utah

NWS Salt Lake City, UT issued this river flood warning at May 23, 2023, 11:44 PM MDT for Cache County, Utah. It was in force for 6 days.

The area

The counties it named.

The facts

Issued: May 23, 2023, 11:44 PM MDT (05:44 UTC)
Expired: May 30, 2023, 9:37 AM MDT
In force: 6 days
Issued by: NWS Salt Lake City, UT
Area: Storm-based polygon
Flood severity: Minor

County Cache County, UT

The radar

The Salt Lake City radar (KMTX), 78 km from the middle of the area, began a volume at 05:46 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.

The river

Written for the forecast point Logan River near Logan (LGNU1). The gauge peaked at 5.45 ft at May 24, 2023, 8:00 AM MDT.

Action stage: 5 ft
Minor stage: 5.2 ft
Moderate stage: 5.5 ft
Major stage: 6 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 10109000, 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 Salt Lake City, UT wrote its last area forecast discussion before this river flood warning went out at May 23, 3:20 PM MDT, 8 hours 24 minutes earlier.

Area forecast discussion, May 23, 3:20 PM MDT, 8 hours 24 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

Special weather statement, May 23, 6:23 PM MDT, 5 hours 21 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 Salt Lake City, UT issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 23, 6:23 PM MDT	Special Weather Statement	SLC	Cache	37 min
May 24, 12:20 PM MDT	Special Weather Statement	SLC	Wasatch	40 min
May 24, 12:32 PM MDT	Severe Thunderstorm Warning	SLC	Wasatch	43 min
May 24, 1:26 PM MDT	Severe Thunderstorm Warning	SLC	Box Elder	49 min
May 24, 1:40 PM MDT	Special Weather Statement	SLC	Davis	35 min
May 24, 1:47 PM MDT	Special Weather Statement	SLC	Wasatch	28 min
May 24, 2:05 PM MDT	Severe Thunderstorm Warning	SLC	Duchesne, Wasatch	40 min
May 24, 2:37 PM MDT	Special Weather Statement	SLC	Tooele	38 min
May 24, 2:47 PM MDT	Special Weather Statement	SLC	Davis	28 min
May 24, 2:53 PM MDT	Severe Thunderstorm Warning	SLC	Tooele	52 min
May 24, 2:57 PM MDT	Special Weather Statement	SLC	Duchesne	33 min
May 24, 3:22 PM MDT	Special Weather Statement	SLC	Tooele	23 min
May 24, 3:36 PM MDT	Special Weather Statement	SLC	Cache	24 min
May 24, 4:33 PM MDT	Special Weather Statement	SLC		27 min
May 24, 5:09 PM MDT	Special Weather Statement	SLC	Rich	36 min

Nearby

River Flood Warnings in Utah, 2023 Every river flood warning in 2023

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.