Alert archive / Michigan / River Flood Warnings in 2018

River Flood Warning 25, NWS Grand Rapids, MI

February 20, 2018Isabella County, Michigan

NWS Grand Rapids, MI issued this river flood warning at Feb 20, 2018, 11:12 PM EST for Isabella County, Michigan. It took effect at Feb 21, 2018, 5:00 AM EST. It was in force for 44 hr.

The area

The counties it named.

The facts

Issued: Feb 20, 2018, 11:12 PM EST (04:12 UTC)
In effect from: Feb 21, 2018, 5:00 AM EST
Expired: Feb 23, 2018, 1:00 AM EST
In force: 44 hr
Issued by: NWS Grand Rapids, MI
Area: Storm-based polygon
Flood severity: Minor

County Isabella County, MI

The radar

The Grand Rapids radar (KGRR), 100 km from the middle of the area, began a volume at 04:12 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 8.75 ft at Feb 21, 2018, 12:00 PM EST.

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 Feb 20, 10:53 PM EST, 19 minutes earlier.

Area forecast discussion, Feb 20, 10:53 PM EST, 19 minutes before

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In the hours before

Local storm report, Feb 20, 8:23 PM EST, 2 hours 49 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
Feb 21, 5:00 AM EST	River Flood Warning	GRR	Muskegon	44 hr
Feb 21, 9:14 AM EST	River Flood Warning	GRR	Gratiot	25 hr
Feb 21, 5:14 PM EST	River Flood Advisory	GRR	Newaygo	36 hr

Nearby

River Flood Warnings in Michigan, 2018 Every river flood warning in 2018

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.