Alert archive / Michigan / River Flood Warnings in 2026

River Flood Warning 42, NWS Grand Rapids, MI

April 16, 2026Isabella County, Michigan

NWS Grand Rapids, MI issued this river flood warning at Apr 16, 2026, 8:25 AM EDT for Isabella County, Michigan. It took effect at Apr 16, 2026, 11:27 AM EDT. It was in force for 4 days.

The area

The counties it named.

The facts

Issued: Apr 16, 2026, 8:25 AM EDT (12:25 UTC)
In effect from: Apr 16, 2026, 11:27 AM EDT
Expired: Apr 20, 2026, 11:16 AM EDT
In force: 4 days
Issued by: NWS Grand Rapids, MI
Area: Storm-based polygon
Flood severity: Unknown

County Isabella County, MI

The radar

The Grand Rapids radar (KGRR), 100 km from the middle of the area, began a volume at 12:28 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 Chippewa River below Mt. Pleasant (MPTM4). The gauge peaked at 9.43 ft at Apr 17, 2026, 8:00 PM EDT.

Action stage: 6 ft
Minor stage: 8 ft
Moderate stage: 11 ft
Major stage: 13 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 04154000, 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 Grand Rapids, MI wrote its last area forecast discussion before this river flood warning went out at Apr 15, 7:46 PM EDT, 12 hours 39 minutes earlier.

Area forecast discussion, Apr 15, 7:46 PM EDT, 12 hours 39 minutes before

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Hazardous weather outlook, Apr 15, 2:57 PM EDT, 17 hours 28 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 Grand Rapids, MI issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Apr 15, 10:16 PM EDT	Special Marine Warning	GRR		119 min
Apr 15, 11:01 PM EDT	Special Weather Statement	GRR	Ottawa	89 min
Apr 15, 11:29 PM EDT	Areal Flood Warning	GRR	Muskegon	11 hr
Apr 15, 11:52 PM EDT	Areal Flood Warning	GRR	Mecosta, Muskegon, Newaygo, Oceana	11 hr
Apr 16, 11:27 AM EDT	River Flood Warning	GRR	Kent	57 hr
Apr 16, 3:21 PM EDT	Special Weather Statement	GRR	Barry, Kalamazoo	84 min
Apr 16, 4:08 PM EDT	Severe Thunderstorm Warning	GRR	Kalamazoo	18 min
Apr 16, 4:30 PM EDT	Special Weather Statement	GRR	Calhoun	45 min
Apr 16, 4:58 PM EDT	Special Weather Statement	GRR	Jackson	92 min
Apr 16, 6:33 PM EDT	Special Weather Statement	GRR	Isabella	87 min
Apr 16, 7:57 PM EDT	Special Weather Statement	GRR	Gratiot	93 min

Nearby

River Flood Warnings in Michigan, 2026 Every 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.