Alert archive / Michigan / River Flood Watches in 2018

River Flood Watch 2, NWS Grand Rapids, MI

January 20, 2018Clinton County, Michigan

NWS Grand Rapids, MI issued this river flood watch at Jan 20, 2018, 8:45 PM EST for Clinton County, Michigan. It took effect at Jan 24, 2018, 1:00 PM EST. It was in force for 3 days.

The area

The counties it named.

The facts

Issued: Jan 20, 2018, 8:45 PM EST (01:45 UTC)
In effect from: Jan 24, 2018, 1:00 PM EST
Expired: Jan 27, 2018, 1:00 PM EST
In force: 3 days
Issued by: NWS Grand Rapids, MI
Area: Storm-based polygon
Flood severity: None

County Clinton County, MI

The radar

The Grand Rapids radar (KGRR), 77 km from the middle of the area, began a volume at 01:48 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 Maple River at Maple Rapids (MRPM4). The gauge peaked at 7.97 ft at Jan 25, 2018, 10:00 PM EST.

Action stage: 7 ft
Minor stage: 9 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 04115000, 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 watch 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 watch went out at Jan 20, 7:17 PM EST, 1 hour 28 minutes earlier.

Area forecast discussion, Jan 20, 7:17 PM EST, 1 hour 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
Jan 20, 8:45 PM EST	River Flood Watch	GRR	Clinton	6 days
Jan 20, 8:45 PM EST	River Flood Watch	GRR	Kalamazoo	5 days
Jan 21, 12:30 PM EST	River Flood Watch	GRR	Ingham	61 hr
Jan 21, 4:26 PM EST	Dense Fog Advisory	GRR	Allegan, Barry, Calhoun, Eaton, Ingham, Jackson and 2 more	13 hr

Nearby

River Flood Watches in Michigan, 2018 Every river flood watch 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.