Alert archive / Iowa / River Flood Warnings in 2025

River Flood Warning 16, NWS Des Moines, IA

July 30, 2025Marion County, Polk County, Warren County, Iowa

NWS Des Moines, IA issued this river flood warning at Jul 30, 2025, 1:26 PM CDT for Marion County, Polk County, Warren County, Iowa. It took effect at Jul 31, 2025, 8:00 AM CDT. It was in force for 4 days.

The area

The counties it named.

The facts

Issued: Jul 30, 2025, 1:26 PM CDT (18:26 UTC)
In effect from: Jul 31, 2025, 8:00 AM CDT
Expired: Aug 4, 2025, 10:00 AM CDT
In force: 4 days
Issued by: NWS Des Moines, IA
Area: Storm-based polygon
Flood severity: Minor

Counties Marion County, IA, Polk County, IA, Warren County, IA

The radar

The Des Moines radar (KDMX), 41 km from the middle of the area, began a volume at 18:28 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 Des Moines River at Des Moines SE 6th St (DESI4). The gauge peaked at 23.53 ft at Jul 31, 2025, 8:00 AM CDT.

Action stage: 20 ft
Minor stage: 24 ft
Moderate stage: 26 ft
Major stage: 30 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 05485500, 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 30, 12:50 PM CDT, 36 minutes earlier.

Area forecast discussion, Jul 30, 12:50 PM CDT, 36 minutes before

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Hazardous weather outlook, Jul 30, 5:31 AM CDT, 7 hours 55 minutes before

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In the hours before

Local storm report, Jul 30, 9:30 AM CDT, 3 hours 56 minutes before

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Local storm report, Jul 30, 9:31 AM CDT, 3 hours 55 minutes before

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      <h1 id="headline">This service is currently unavailable.</h1>
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      <p id="message2">
        Please try again in a few minutes.
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      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
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Local storm report, Jul 30, 9:32 AM CDT, 3 hours 54 minutes before

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      <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.
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Local storm report, Jul 30, 10:26 AM CDT, 3 hours before

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      <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.
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Special weather statement, Jul 30, 11:51 AM CDT, 1 hour 35 minutes before

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      <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.
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Local storm report, Jul 30, 12:26 PM CDT, 1 hour before

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      <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>
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The office that day

Everything else NWS Des Moines, IA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 29, 8:42 PM CDT	River Flood Warning	DMX	Black Hawk	5 days
Jul 29, 8:45 PM CDT	River Flood Watch	DMX	Poweshiek, Tama	14 hr
Jul 29, 8:45 PM CDT	River Flood Watch	DMX	Black Hawk	3 days
Jul 29, 8:45 PM CDT	River Flood Watch	DMX	Marshall	4 days
Jul 29, 8:45 PM CDT	River Flood Watch	DMX	Black Hawk	38 hr
Jul 29, 8:46 PM CDT	River Flood Watch	DMX	Cerro Gordo, Floyd, Worth	7 hr
Jul 29, 9:16 PM CDT	Special Weather Statement	DMX	Worth	44 min
Jul 29, 9:46 PM CDT	River Flood Watch	DMX	Polk	12 hr
Jul 29, 10:24 PM CDT	Special Weather Statement	DMX	Dallas, Polk	36 min
Jul 30, 12:13 AM CDT	Severe Thunderstorm Warning	DMX	Grundy, Marshall, Tama	47 min
Jul 30, 12:45 AM CDT	Severe Thunderstorm Warning	DMX	Audubon, Carroll, Crawford, Greene, Guthrie	45 min
Jul 30, 1:07 AM CDT	Severe Thunderstorm Warning	DMX	Black Hawk, Grundy, Tama	53 min
Jul 30, 1:16 AM CDT	Severe Thunderstorm Warning	DMX	Calhoun, Carroll, Dallas, Greene, Guthrie, Webster	44 min
Jul 30, 1:25 AM CDT	Severe Thunderstorm Warning	DMX	Adair, Audubon, Cass, Dallas, Guthrie	46 min
Jul 30, 1:46 AM CDT	Severe Thunderstorm Warning	DMX	Boone, Dallas, Greene, Guthrie, Hamilton, Polk and 1 more	59 min
Jul 30, 2:47 AM CDT	Severe Thunderstorm Warning	DMX	Boone, Dallas, Polk, Story	43 min
Jul 30, 3:59 AM CDT	River Flood Warning	DMX	Cerro Gordo, Floyd, Worth	3 days
Jul 30, 10:12 AM CDT	River Flood Warning	DMX	Polk	5 days
Jul 30, 10:21 AM CDT	River Flood Watch	DMX	Hamilton, Humboldt, Webster	4 days
Jul 30, 10:21 AM CDT	River Flood Watch	DMX	Humboldt	69 hr
Jul 30, 10:21 AM CDT	River Flood Watch	DMX	Humboldt, Kossuth	25 hr
Jul 30, 10:26 AM CDT	River Flood Watch	DMX	Dallas	20 hr
Jul 30, 10:39 AM CDT	River Flood Warning	DMX	Poweshiek, Tama	4 days
Jul 30, 11:28 AM CDT	River Flood Watch	DMX	Franklin, Wright	62 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.