Alert archive / Wisconsin / River Flood Warnings in 2026

River Flood Warning 4, NWS Milwaukee, WI

April 4, 2026Milwaukee County, Wisconsin

NWS Milwaukee, WI issued this river flood warning at Apr 4, 2026, 4:49 AM CDT for Milwaukee County, Wisconsin. It took effect at Apr 4, 2026, 5:48 AM CDT. It was in force for 10 hr.

The area

The counties it named.

The facts

Issued: Apr 4, 2026, 4:49 AM CDT (09:49 UTC)
In effect from: Apr 4, 2026, 5:48 AM CDT
Expired: Apr 4, 2026, 4:15 PM CDT
In force: 10 hr
Issued by: NWS Milwaukee, WI
Area: Storm-based polygon
Flood severity: Minor

County Milwaukee County, WI

The radar

The Milwaukee radar (KMKX), 51 km from the middle of the area, began a volume at 09:49 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 Root River at Franklin (FRKW3). The gauge peaked at 8.03 ft at Apr 4, 2026, 8:00 AM CDT.

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 04087220, 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 Milwaukee, WI wrote its last area forecast discussion before this river flood warning went out at Apr 4, 12:29 AM CDT, 4 hours 20 minutes earlier.

Area forecast discussion, Apr 4, 12:29 AM CDT, 4 hours 20 minutes before

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Hazardous weather outlook, Apr 4, 12:38 AM CDT, 4 hours 11 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 Milwaukee, WI issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Apr 3, 8:43 PM CDT	Special Weather Statement	MKX	Walworth	32 min
Apr 3, 8:58 PM CDT	Severe Thunderstorm Warning	MKX	Racine, Walworth	32 min
Apr 3, 9:15 PM CDT	Special Weather Statement	MKX	Jefferson, Waukesha	45 min
Apr 3, 9:23 PM CDT	Special Weather Statement	MKX	Milwaukee	37 min
Apr 3, 9:48 PM CDT	River Flood Watch	MKX	Sauk	13 hr
Apr 3, 9:48 PM CDT	River Flood Watch	MKX	Sauk	13 hr
Apr 3, 9:48 PM CDT	River Flood Watch	MKX	Columbia, Sauk	13 hr
Apr 3, 9:54 PM CDT	Special Weather Statement	MKX	Milwaukee	36 min
Apr 4, 6:47 AM CDT	River Flood Warning	MKX	Milwaukee	4 hr
Apr 4, 10:45 AM CDT	River Flood Warning	MKX	Sauk	48 hr
Apr 4, 10:48 AM CDT	River Flood Warning	MKX	Sauk	4 days
Apr 4, 10:52 AM CDT	River Flood Warning	MKX	Columbia, Sauk	48 hr

Nearby

River Flood Warnings in Wisconsin, 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.