Alert archive / Ohio / River Flood Warnings in 2026

River Flood Warning 45, NWS Wilmington, OH

August 12, 2026Hamilton County, Ohio

NWS Wilmington, OH issued this river flood warning at Aug 12, 2026, 2:01 PM EDT for Hamilton County, Ohio. It took effect at Aug 12, 2026, 6:04 PM EDT. It was in force for 2 hr.

The area

The counties it named.

The facts

Issued: Aug 12, 2026, 2:01 PM EDT (18:01 UTC)
In effect from: Aug 12, 2026, 6:04 PM EDT
Expired: Aug 12, 2026, 8:26 PM EDT
In force: 2 hr
Issued by: NWS Wilmington, OH
Area: Storm-based polygon
Flood severity: Minor

County Hamilton County, OH

The radar

The Cincinnati radar (KILN), 67 km from the middle of the area, began a volume at 18:04 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 Mill Creek at Evendale (EVNO1). The gauge peaked at 11.88 ft at Aug 12, 2026, 6:00 PM EDT.

Action stage: 9 ft
Minor stage: 12 ft
Moderate stage: 14 ft
Major stage: 16.5 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 03255420, 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 Wilmington, OH wrote its last area forecast discussion before this river flood warning went out at Aug 12, 12:31 PM EDT, 1 hour 30 minutes earlier.

Area forecast discussion, Aug 12, 12:31 PM EDT, 1 hour 30 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, Aug 12, 1:54 PM EDT, 7 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>

In the hours before

Local storm report, Aug 12, 1:05 PM EDT, 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, Aug 12, 1:07 PM EDT, 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>

Local storm report, Aug 12, 1:09 PM EDT, 52 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, Aug 12, 1:38 PM EDT, 23 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, Aug 12, 1:40 PM EDT, 21 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, Aug 12, 1:52 PM EDT, 9 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 Wilmington, OH issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Aug 12, 7:21 AM EDT	River Flood Advisory	ILN	Hamilton	2 hr
Aug 12, 8:07 AM EDT	Severe Thunderstorm Warning	ILN	Auglaize, Mercer, Shelby	22 min
Aug 12, 8:10 AM EDT	Areal Flood Advisory	ILN	Auglaize, Darke, Mercer, Miami, Preble, Shelby	6 hr
Aug 12, 8:50 AM EDT	Flash Flood Warning	ILN	Darke, Preble	3 hr
Aug 12, 9:09 AM EDT	Special Weather Statement	ILN	Auglaize, Logan	36 min
Aug 12, 9:41 AM EDT	Special Weather Statement	ILN	Hardin	34 min
Aug 12, 9:47 AM EDT	River Flood Warning	ILN	Hamilton	50 hr
Aug 12, 10:20 AM EDT	Flash Flood Warning	ILN	Butler	2 hr
Aug 12, 11:30 AM EDT	Areal Flood Warning	ILN	Butler, Darke, Montgomery, Preble	3 hr
Aug 12, 12:29 PM EDT	Areal Flood Warning	ILN	Butler, Hamilton, Preble, Warren	3 hr
Aug 12, 2:07 PM EDT	Areal Flood Warning	ILN	Auglaize, Butler, Darke, Mercer, Miami, Montgomery and 3 more	4 hr
Aug 12, 2:13 PM EDT	Areal Flood Warning	ILN	Butler, Hamilton	5 hr
Aug 12, 3:25 PM EDT	Special Weather Statement	ILN	Butler, Hamilton	50 min
Aug 12, 3:48 PM EDT	Severe Thunderstorm Warning	ILN	Clermont, Hamilton	42 min
Aug 12, 4:30 AM EDT	Flash Flood Warning	ILN	Carroll, Gallatin	8 hr
Aug 12, 5:12 AM EDT	Areal Flood Advisory	ILN	Grant, Owen	3 hr
Aug 12, 5:29 AM EDT	Flash Flood Warning	ILN	Owen	6 hr
Aug 12, 11:04 AM EDT	Areal Flood Warning	ILN	Gallatin, Owen	2 hr
Aug 12, 4:25 PM EDT	Special Weather Statement	ILN	Campbell, Grant, Kenton	50 min
Aug 12, 4:53 PM EDT	Special Weather Statement	ILN	Bracken, Mason, Pendleton, Robertson	52 min
Aug 12, 2:04 AM EDT	Areal Flood Advisory	ILN	Fayette, Franklin, Wayne	50 min
Aug 12, 2:21 AM EDT	Areal Flood Advisory	ILN	Ripley	63 min
Aug 12, 2:54 AM EDT	Flash Flood Warning	ILN	Fayette, Franklin, Wayne	3 hr
Aug 12, 3:09 AM EDT	Flash Flood Warning Considerable damage threat	ILN	Fayette, Franklin, Wayne	9 hr
Aug 12, 3:19 AM EDT	Flash Flood Warning	ILN	Franklin, Ripley	3 hr
Aug 12, 3:24 AM EDT	Flash Flood Warning	ILN	Ripley, Switzerland	3 hr
Aug 12, 4:05 AM EDT	Flash Flood Warning Considerable damage threat	ILN	Franklin, Ripley	15 hr
Aug 12, 4:09 AM EDT	Areal Flood Advisory	ILN	Fayette, Union, Wayne	2 hr
Aug 12, 5:04 AM EDT	Flash Flood Warning	ILN	Fayette, Union, Wayne	3 hr
Aug 12, 6:05 AM EDT	Areal Flood Advisory	ILN	Union, Wayne	3 hr
Aug 12, 6:22 AM EDT	Flash Flood Warning EmergencyConsiderable damage threat	ILN	Fayette, Union, Wayne	6 hr
Aug 12, 7:20 AM EDT	River Flood Warning	ILN	Fayette, Franklin	46 hr
Aug 12, 7:20 AM EDT	River Flood Warning	ILN	Union, Wayne	23 hr
Aug 12, 11:14 AM EDT	Flash Flood Warning EmergencyCatastrophic damage threat	ILN	Fayette, Franklin, Wayne	8 hr
Aug 12, 12:10 PM EDT	Flash Flood Warning EmergencyCatastrophic damage threat	ILN	Fayette, Union, Wayne	7 hr
Aug 12, 2:34 PM EDT	Special Weather Statement	ILN	Dearborn, Fayette, Franklin, Ripley, Union	41 min
Aug 12, 2:56 PM EDT	Severe Thunderstorm Warning	ILN	Dearborn, Franklin, Ripley	34 min
Aug 12, 6:54 PM EDT	Flash Flood Warning Considerable damage threat	ILN	Wayne	3 hr
Aug 12, 7:00 PM EDT	Areal Flood Warning	ILN	Fayette, Franklin, Union	18 hr
Aug 12, 7:06 PM EDT	Areal Flood Warning	ILN	Dearborn, Franklin, Ripley, Switzerland	18 hr

Nearby

River Flood Warnings in Ohio, 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.