Alert archive / Iowa / River Flood Warnings in 2025

River Flood Warning 11, NWS Des Moines, IA

July 29, 2025Black Hawk County, Bremer County, Butler County, Iowa

NWS Des Moines, IA issued this river flood warning at Jul 29, 2025, 11:39 AM CDT for Black Hawk County, Bremer County, Butler County, Iowa. It took effect at Jul 30, 2025, 1:00 AM CDT. It was in force for 4 days.

The area

The counties it named.

The facts

Issued: Jul 29, 2025, 11:39 AM CDT (16:39 UTC)
In effect from: Jul 30, 2025, 1:00 AM CDT
Expired: Aug 3, 2025, 12:47 AM CDT
In force: 4 days
Issued by: NWS Des Moines, IA
Area: Storm-based polygon
Flood severity: Minor

Counties Black Hawk County, IA, Bremer County, IA, Butler County, IA

The radar

The Des Moines radar (KDMX), 146 km from the middle of the area, began a volume at 16:39 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 Shell Rock River at Shell Rock (SHRI4). The gauge peaked at 13.32 ft at Aug 1, 2025, 3:00 AM CDT.

Action stage: 10 ft
Minor stage: 12 ft
Moderate stage: 16 ft
Major stage: 18 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 05462000, 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 Des Moines, IA wrote its last area forecast discussion before this river flood warning went out at Jul 29, 6:54 AM CDT, 4 hours 45 minutes earlier.

Area forecast discussion, Jul 29, 6:54 AM CDT, 4 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, Jul 29, 5:05 AM CDT, 6 hours 34 minutes before

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<html lang="en">
<head>
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  <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>
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In the hours before

Special weather statement, Jul 29, 8:43 AM CDT, 2 hours 56 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>

Local storm report, Jul 29, 11:26 AM CDT, 13 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 Des Moines, IA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 28, 10:29 PM CDT	Severe Thunderstorm Warning Destructive damage threat	DMX	Emmet, Kossuth, Palo Alto	76 min
Jul 28, 10:35 PM CDT	Severe Thunderstorm Warning Considerable damage threat	DMX	Calhoun, Humboldt, Pocahontas, Sac, Webster	70 min
Jul 28, 10:50 PM CDT	Severe Thunderstorm Warning	DMX	Calhoun, Carroll, Crawford, Greene, Sac, Webster	55 min
Jul 28, 11:17 PM CDT	Severe Thunderstorm Warning Destructive damage threat	DMX	Cerro Gordo, Emmet, Hancock, Kossuth, Palo Alto, Winnebago and 1 more	73 min
Jul 28, 11:27 PM CDT	Severe Thunderstorm Warning Considerable damage threat	DMX	Franklin, Hamilton, Hardin, Humboldt, Webster, Wright	63 min
Jul 28, 11:32 PM CDT	Severe Thunderstorm Warning	DMX	Boone, Calhoun, Carroll, Greene, Hamilton, Hardin and 2 more	58 min
Jul 28, 11:51 PM CDT	Severe Thunderstorm Warning	DMX	Cerro Gordo, Worth	39 min
Jul 29, 12:11 AM CDT	Severe Thunderstorm Warning	DMX	Butler, Cerro Gordo, Franklin, Hancock, Winnebago, Worth and 1 more	79 min
Jul 29, 12:27 AM CDT	Special Weather Statement	DMX	Hamilton, Hardin, Story	33 min
Jul 29, 12:47 AM CDT	Severe Thunderstorm Warning	DMX	Black Hawk, Bremer, Butler, Grundy, Hardin	58 min
Jul 29, 12:53 AM CDT	Special Weather Statement	DMX	Grundy, Hardin, Marshall	52 min
Jul 29, 1:23 AM CDT	Severe Thunderstorm Warning Considerable damage threat	DMX	Black Hawk, Grundy, Tama	37 min
Jul 29, 1:32 AM CDT	Severe Thunderstorm Warning	DMX	Grundy, Jasper, Marshall, Poweshiek, Tama	28 min
Jul 29, 1:54 AM CDT	Severe Thunderstorm Warning	DMX	Jasper, Mahaska, Marshall, Poweshiek, Tama	66 min
Jul 29, 2:54 AM CDT	Special Weather Statement	DMX	Mahaska	36 min
Jul 29, 8:43 AM CDT	Special Weather Statement	DMX	Palo Alto	32 min
Jul 29, 9:44 AM CDT	Severe Thunderstorm Warning	DMX	Humboldt, Kossuth, Palo Alto, Pocahontas	34 min
Jul 29, 11:39 AM CDT	River Flood Watch	DMX	Black Hawk	9 hr
Jul 29, 1:20 PM CDT	Special Weather Statement	DMX	Humboldt	25 min
Jul 29, 3:08 PM CDT	Flood Watch	DMX	Adair, Adams, Appanoose, Audubon, Boone, Calhoun and 36 more	23 hr

Nearby

River Flood Warnings in Iowa, 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.