Alert archive / Wisconsin / River Flood Warnings in 2025

River Flood Warning 3, NWS Green Bay, WI

March 30, 2025Oconto County, Wisconsin

NWS Green Bay, WI issued this river flood warning at Mar 30, 2025, 2:18 AM CDT for Oconto County, Wisconsin. It took effect at Mar 30, 2025, 7:00 AM CDT. It was in force for 5 hr.

The area

The counties it named.

The facts

Issued: Mar 30, 2025, 2:18 AM CDT (07:18 UTC)
In effect from: Mar 30, 2025, 7:00 AM CDT
Expired: Mar 30, 2025, 11:40 AM CDT
In force: 5 hr
Issued by: NWS Green Bay, WI
Area: Storm-based polygon
Flood severity: Minor

County Oconto County, WI

The radar

The Green Bay radar (KGRB), 56 km from the middle of the area, began a volume at 07:18 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 Oconto River near Oconto (OCTW3). The gauge peaked at 8.65 ft at Mar 29, 2025, 11:00 PM CDT.

Action stage: 7 ft
Minor stage: 9 ft
Moderate stage: 12 ft
Major stage: 14 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 04071765, 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 Green Bay, WI wrote its last area forecast discussion before this river flood warning went out at Mar 29, 6:33 PM CDT, 7 hours 45 minutes earlier.

Area forecast discussion, Mar 29, 6:33 PM CDT, 7 hours 45 minutes before

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Hazardous weather outlook, Mar 29, 4:14 PM CDT, 10 hours 4 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 Green Bay, WI issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Mar 30, 10:28 AM CDT	River Flood Warning	GRB	Portage	21 days
Mar 30, 10:28 AM CDT	River Flood Warning	GRB	Portage	21 days
Mar 30, 12:49 PM CDT	River Flood Warning	GRB	Marathon	21 hr

Nearby

River Flood Warnings in Wisconsin, 2025 Every river flood warning in 2025

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.