Alert archive / Iowa / River Flood Warnings in 2025

River Flood Warning 15, NWS Quad Cities, IA

July 30, 2025Linn County, Iowa

NWS Quad Cities, IA issued this river flood warning at Jul 30, 2025, 7:01 AM CDT for Linn County, Iowa. It took effect at Aug 1, 2025, 10:00 PM CDT. It was in force for 4 days.

The area

The counties it named.

The facts

Issued: Jul 30, 2025, 7:01 AM CDT (12:01 UTC)
In effect from: Aug 1, 2025, 10:00 PM CDT
Expired: Aug 5, 2025, 8:41 PM CDT
In force: 4 days
Issued by: NWS Quad Cities, IA
Area: Storm-based polygon
Flood severity: Moderate

County Linn County, IA

The radar

The Quad Cities radar (KDVN), 99 km from the middle of the area, began a volume at 12:00 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 Cedar River at Cedar Rapids (CIDI4). The gauge peaked at 12.68 ft at Aug 4, 2025, 6:00 AM CDT.

Action stage: 10 ft
Minor stage: 12 ft
Moderate stage: 14 ft
Major stage: 16 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 05464500, 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 Quad Cities, IA wrote its last area forecast discussion before this river flood warning went out at Jul 30, 6:18 AM CDT, 43 minutes earlier.

Area forecast discussion, Jul 30, 6:18 AM CDT, 43 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 30, 3:06 AM CDT, 3 hours 55 minutes before

Hazardous Weather Outlook
National Weather Service Quad Cities IA IL
306 AM CDT Wed Jul 30 2025

IAZ040>042-051>054-063>068-076>078-087>089-098-099-ILZ001-002-007-
009-015>018-024>026-034-035-MOZ009-010-310815-
Buchanan-Delaware-Dubuque-Benton-Linn-Jones-Jackson-Iowa-Johnson-
Cedar-Clinton-Muscatine-Scott-Keokuk-Washington-Louisa-Jefferson-
Henry IA-Des Moines-Van Buren-Lee-Jo Daviess-Stephenson-Carroll-
Whiteside-Rock Island-Henry IL-Bureau-Putnam-Mercer-Henderson-
Warren-Hancock-McDonough-Scotland-Clark-
306 AM CDT Wed Jul 30 2025

This Hazardous Weather Outlook is for portions of north central
Illinois...northwest Illinois...west central Illinois...east
central Iowa...northeast Iowa...southeast Iowa and northeast
Missouri.

.DAY ONE...TODAY AND TONIGHT

Thunderstorms will be seen today and tonight that will be capable
of producing heavy rainfall. The humid conditions will continue
into tonight.

The Storm Prediction Center has a marginal, level 1 out of 5, risk
of severe storms today into this evening. The primary risk will be
damaging winds.

Several area rivers are or will be experiencing flooding. Please
see the latest Flood Statements and Flood Warnings for details.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

Thunderstorms will be possible south of Interstate 80 Thursday
morning but no severe storms are expected.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed today into this evening.

In the hours before

Special weather statement, Jul 30, 4:39 AM CDT, 2 hours 22 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>

Special weather statement, Jul 30, 4:57 AM CDT, 2 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>

Local storm report, Jul 30, 5:07 AM CDT, 1 hour 54 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>

Special weather statement, Jul 30, 5:48 AM CDT, 1 hour 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>

Special weather statement, Jul 30, 6:22 AM CDT, 39 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>

Special weather statement, Jul 30, 6:45 AM CDT, 16 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 Quad Cities, IA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 29, 7:33 PM CDT	River Flood Warning	DVN	Keokuk	5 days
Jul 29, 7:34 PM CDT	River Flood Watch	DVN	Des Moines, Henry, Lee	14 hr
Jul 29, 8:35 PM CDT	River Flood Watch	DVN	Johnson, Louisa, Washington	5 days
Jul 29, 8:35 PM CDT	River Flood Watch	DVN	Louisa	21 days
Jul 29, 9:04 PM CDT	River Flood Warning	DVN	Johnson, Washington	4 days
Jul 30, 1:15 AM CDT	Severe Thunderstorm Warning	DVN	Benton, Buchanan	60 min
Jul 30, 2:06 AM CDT	Severe Thunderstorm Warning	DVN	Buchanan, Delaware	54 min
Jul 30, 2:14 AM CDT	Special Weather Statement	DVN	Benton, Linn	46 min
Jul 30, 2:27 AM CDT	Flood Watch	DVN	Benton, Buchanan, Cedar, Clinton, Delaware, Des Moines and 15 more	11 hr
Jul 30, 2:39 AM CDT	Special Weather Statement	DVN	Jones	51 min
Jul 30, 3:06 AM CDT	Severe Thunderstorm Warning	DVN	Cedar, Clinton, Dubuque, Jackson, Jones, Linn and 1 more	54 min
Jul 30, 3:57 AM CDT	Severe Thunderstorm Warning	DVN	Clinton, Jackson, Scott	39 min
Jul 30, 4:11 AM CDT	Special Weather Statement	DVN	Muscatine	49 min
Jul 30, 4:57 AM CDT	Special Weather Statement	DVN	Iowa, Keokuk	48 min
Jul 30, 5:48 AM CDT	Special Weather Statement	DVN	Keokuk, Washington	27 min
Jul 30, 6:22 AM CDT	Special Weather Statement	DVN	Cedar, Johnson, Muscatine	23 min
Jul 30, 6:45 AM CDT	Special Weather Statement	DVN	Cedar, Muscatine, Scott	45 min
Jul 30, 7:18 AM CDT	Special Weather Statement	DVN	Clinton	57 min
Jul 30, 7:33 AM CDT	Special Weather Statement	DVN	Lee	57 min
Jul 30, 7:50 AM CDT	Severe Thunderstorm Warning	DVN	Lee	40 min
Jul 30, 9:54 AM CDT	River Flood Warning	DVN	Des Moines, Henry, Lee	5 days
Jul 30, 9:57 AM CDT	River Flood Warning	DVN	Clinton, Scott	10 days
Jul 30, 10:00 AM CDT	River Flood Watch	DVN	Cedar, Jones, Linn	59 hr
Jul 30, 10:42 AM CDT	River Flood Warning	DVN	Louisa, Muscatine	21 days
Jul 30, 10:42 AM CDT	River Flood Warning	DVN	Johnson, Louisa, Washington	5 days
Jul 30, 10:42 AM CDT	River Flood Warning	DVN	Louisa	9 days
Jul 30, 10:42 AM CDT	River Flood Warning	DVN	Louisa	10 days
Jul 30, 10:48 AM CDT	River Flood Watch	DVN	Linn	23 hr
Jul 30, 10:48 AM CDT	River Flood Watch	DVN	Cedar, Johnson, Muscatine	6 days
Jul 30, 11:14 AM CDT	River Flood Watch	DVN	Des Moines, Lee	7 days
Jul 30, 11:14 AM CDT	River Flood Watch	DVN	Des Moines	21 days
Jul 30, 11:14 AM CDT	River Flood Watch	DVN	Des Moines, Louisa	7 days
Jul 30, 3:52 AM CDT	Special Weather Statement	DVN	Jo Daviess	38 min
Jul 30, 4:35 AM CDT	Special Weather Statement	DVN	Henry, Mercer, Warren, Whiteside	40 min
Jul 30, 4:39 AM CDT	Special Weather Statement	DVN	Carroll, Jo Daviess, Stephenson	66 min
Jul 30, 11:14 AM CDT	River Flood Warning	DVN	Hancock	11 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.