Alert archive / Michigan / River Flood Advisories in 2018

River Flood Advisory 49, NWS Grand Rapids, MI

February 20, 2018Gratiot County, Michigan

NWS Grand Rapids, MI issued this river flood advisory at Feb 20, 2018, 1:42 PM EST for Gratiot County, Michigan. It was in force for 47 hr.

The area

The counties it named.

The facts

Issued: Feb 20, 2018, 1:42 PM EST (18:42 UTC)
Expired: Feb 22, 2018, 1:00 PM EST
In force: 47 hr
Issued by: NWS Grand Rapids, MI
Area: Storm-based polygon

County Gratiot County, MI

The radar

The Grand Rapids radar (KGRR), 88 km from the middle of the area, began a volume at 18:45 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 Pine River at Alma (ALMM4).

Action stage: 7 ft
Minor stage: 8 ft
Moderate stage: 10 ft
Major stage: 12 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 04155000, 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 advisory 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 advisory went out at Feb 19, 6:57 PM EST, 18 hours 45 minutes earlier.

Area forecast discussion, Feb 19, 6:57 PM EST, 18 hours 45 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>

Hazardous weather outlook, Feb 19, 3:22 PM EST, 22 hours 20 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 19, 9:23 PM EST	River Flood Warning	GRR	Allegan	7 days
Feb 20, 6:20 AM EST	River Flood Advisory	GRR	Osceola	7 days
Feb 20, 6:23 AM EST	Areal Flood Warning	GRR	Allegan, Barry, Calhoun, Clinton, Eaton, Ingham and 6 more	55 hr
Feb 20, 6:55 AM EST	Areal Flood Warning	GRR	Clare, Gratiot, Isabella, Mecosta, Montcalm, Muskegon and 3 more	54 hr
Feb 20, 1:05 PM EST	River Flood Warning	GRR	Newaygo	4 days
Feb 20, 1:42 PM EST	River Flood Advisory	GRR	Eaton	4 days
Feb 20, 1:42 PM EST	River Flood Advisory	GRR	Clinton, Eaton	5 days
Feb 20, 1:42 PM EST	River Flood Advisory	GRR	Mason	7 days
Feb 20, 6:04 PM EST	Special Weather Statement	GRR	Eaton	56 min
Feb 20, 6:34 PM EST	River Flood Advisory	GRR	Calhoun	5 days
Feb 20, 6:34 PM EST	River Flood Advisory	GRR	Calhoun	4 days

Nearby

River Flood Advisories in Michigan, 2018 Every river flood advisory 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.