Alert archive / Michigan / River Flood Warnings in 2026

River Flood Warning 13, NWS Detroit, MI

April 15, 2026Saginaw County, Shiawassee County, Michigan

NWS Detroit, MI issued this river flood warning at Apr 15, 2026, 10:44 AM EDT for Saginaw County, Shiawassee County, Michigan. It took effect at Apr 16, 2026, 12:00 AM EDT. It was in force for 11 hr.

The area

The counties it named.

The facts

Issued
Apr 15, 2026, 10:44 AM EDT (14:44 UTC)
In effect from
Apr 16, 2026, 12:00 AM EDT
Expired
Apr 16, 2026, 10:58 AM EDT
In force
11 hr
Issued by
NWS Detroit, MI
Area
Storm-based polygon
Flood severity
Minor

Counties Saginaw County, MI, Shiawassee County, MI

The radar

The Detroit radar (KDTX), 71 km from the middle of the area, began a volume at 14:44 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 Shiawassee River at Owosso (OWOM4). The gauge peaked at 6.57 ft at Apr 17, 2026, 4:00 AM EDT.

actionminormoderatemajor4681004/1504/1604/17
Action stage
6 ft
Minor stage
7 ft
Moderate stage
9 ft
Major stage
10 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 04144500, 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 Detroit, MI wrote its last area forecast discussion before this river flood warning went out at Apr 15, 6:51 AM EDT, 3 hours 53 minutes earlier.

Area forecast discussion, Apr 15, 6:51 AM EDT, 3 hours 53 minutes before
<!doctype html>
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  <title>Service Notice</title>
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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.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>
Hazardous weather outlook, Apr 15, 4:53 AM EDT, 5 hours 51 minutes before
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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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In the hours before

Local storm report, Apr 15, 8:13 AM EDT, 2 hours 31 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>
Local storm report, Apr 15, 9:45 AM EDT, 59 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 Detroit, MI issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 14, 10:33 PM EDTSpecial Marine WarningDTX105 min
Apr 14, 11:27 PM EDTTornado WarningDTXSaginaw39 min
Apr 14, 11:30 PM EDTSevere Thunderstorm WarningDTXSaginaw, Shiawassee60 min
Apr 14, 11:39 PM EDTTornado WarningDTXShiawassee32 min
Apr 14, 11:49 PM EDTSevere Thunderstorm WarningDTXGenesee48 min
Apr 14, 11:56 PM EDTTornado WarningDTXSaginaw14 min
Apr 15, 12:10 AM EDTAreal Flood AdvisoryDTXGenesee, Saginaw3 hr
Apr 15, 12:19 AM EDTSevere Thunderstorm WarningDTXLivingston, Oakland71 min
Apr 15, 12:36 AM EDTSpecial Marine WarningDTX102 min
Apr 15, 12:38 AM EDTSevere Thunderstorm WarningDTXLapeer33 min
Apr 15, 12:57 AM EDTSpecial Marine WarningDTX110 min
Apr 15, 1:00 AM EDTSpecial Weather StatementDTXMacomb, Saint Clair60 min
Apr 15, 1:27 AM EDTAreal Flood AdvisoryDTXLivingston, Macomb, Oakland3 hr
Apr 15, 1:28 AM EDTSevere Thunderstorm WarningDTXLenawee, Washtenaw62 min
Apr 15, 1:31 AM EDTTornado WarningDTXWashtenaw28 min
Apr 15, 1:51 AM EDTSevere Thunderstorm WarningDTXMonroe, Wayne40 min
Apr 15, 1:51 AM EDTTornado WarningDTXWayne39 min
Apr 15, 1:54 AM EDTSpecial Marine WarningDTX58 min
Apr 15, 1:55 AM EDTTornado WarningDTXLenawee, Monroe31 min
Apr 15, 10:44 AM EDTRiver Flood WarningDTXMidland, Saginaw4 days
Apr 15, 10:44 AM EDTRiver Flood WarningDTXBay, Saginaw6 days
Apr 15, 10:44 AM EDTRiver Flood WarningDTXSaginaw53 hr
Apr 15, 2:41 PM EDTSpecial Weather StatementDTXMonroe64 min
Apr 15, 2:50 PM EDTSevere Thunderstorm WarningDTXMonroe42 min
Apr 15, 3:07 PM EDTSpecial Marine WarningDTX38 min

Nearby

River Flood Warnings in Michigan, 2026Every river flood warning in 2026

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.