Alert archive / Iowa / River Flood Warnings in 2025

River Flood Warning 24, NWS La Crosse, WI

August 18, 2025Winneshiek County, Iowa

NWS La Crosse, WI issued this river flood warning at Aug 18, 2025, 11:17 AM CDT for Winneshiek County, Iowa. It took effect at Aug 18, 2025, 11:26 AM CDT. It was in force for 43 hr.

The area

The counties it named.

The facts

Issued: Aug 18, 2025, 11:17 AM CDT (16:17 UTC)
In effect from: Aug 18, 2025, 11:26 AM CDT
Expired: Aug 20, 2025, 6:46 AM CDT
In force: 43 hr
Issued by: NWS La Crosse, WI
Area: Storm-based polygon
Flood severity: Moderate

County Winneshiek County, IA

The radar

The La Crosse radar (KARX), 79 km from the middle of the area, began a volume at 16:20 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 Turkey River at Spillville (SPLI4). The gauge peaked at 11.21 ft at Aug 18, 2025, 3:00 PM CDT.

Action stage: 7 ft
Minor stage: 9 ft
Moderate stage: 11 ft
Major stage: 13 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 05411600, 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 La Crosse, WI wrote its last area forecast discussion before this river flood warning went out at Aug 17, 6:49 PM CDT, 16 hours 28 minutes earlier.

Area forecast discussion, Aug 17, 6:49 PM CDT, 16 hours 28 minutes before

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Hazardous weather outlook, Aug 17, 3:08 PM CDT, 20 hours 9 minutes before

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<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.
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</body>
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The office that day

Everything else NWS La Crosse, WI issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Aug 18, 6:29 AM CDT	River Flood Warning	ARX	Buffalo, Trempealeau	12 hr
Aug 18, 8:33 AM CDT	River Flood Warning	ARX	Buffalo, Trempealeau	3 days
Aug 18, 9:58 AM CDT	Areal Flood Advisory	ARX	Monroe, Vernon	3 hr
Aug 18, 2:51 PM CDT	River Flood Watch	ARX	Richland, Vernon	5 hr
Aug 18, 2:51 PM CDT	River Flood Watch	ARX	Crawford	3 days
Aug 18, 2:51 PM CDT	River Flood Watch	ARX	Crawford	20 hr
Aug 18, 6:42 AM CDT	River Flood Warning	ARX	Allamakee	48 hr
Aug 18, 7:20 AM CDT	Flash Flood Warning	ARX	Allamakee, Chickasaw, Floyd, Howard, Mitchell, Winneshiek	4 hr
Aug 18, 9:37 AM CDT	River Flood Warning	ARX	Floyd	59 hr
Aug 18, 11:02 AM CDT	Areal Flood Warning	ARX	Allamakee, Chickasaw, Floyd, Howard, Mitchell, Winneshiek	31 hr
Aug 18, 1:04 PM CDT	River Flood Warning	ARX	Winneshiek	5 hr
Aug 18, 2:37 PM CDT	River Flood Watch	ARX	Clayton	62 hr
Aug 18, 6:29 AM CDT	River Flood Warning	ARX	Mower	48 hr
Aug 18, 7:42 AM CDT	River Flood Warning	ARX	Mower	6 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.