Alert archive / Indiana / River Flood Warnings in 2026

River Flood Warning 43, NWS Indianapolis, IN

April 3, 2026Knox County, Sullivan County, Indiana; Crawford County, Lawrence County, Illinois

NWS Indianapolis, IN issued this river flood warning at Apr 3, 2026, 12:14 PM EDT for Knox County, Sullivan County, Indiana; Crawford County, Lawrence County, Illinois. It took effect at Apr 4, 2026, 5:25 AM EDT. It was in force for 10 days.

The area

The counties it named.

The facts

Issued
Apr 3, 2026, 12:14 PM EDT (16:14 UTC)
In effect from
Apr 4, 2026, 5:25 AM EDT
Expired
Apr 13, 2026, 7:25 PM EDT
In force
10 days
Issued by
NWS Indianapolis, IN
Area
Storm-based polygon
Flood severity
Minor

Counties Crawford County, IL, Lawrence County, IL, Knox County, IN, Sullivan County, IN

The radar

The Evansville,IN radar (KVWX), 70 km from the middle of the area, began a volume at 16:17 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 Wabash River at Riverton (RVTI3). The gauge peaked at 18.09 ft at Apr 10, 2026, 1:00 PM EDT.

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Action stage
10 ft
Minor stage
15 ft
Moderate stage
22 ft
Major stage
26 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 03342000, 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 Indianapolis, IN wrote its last area forecast discussion before this river flood warning went out at Apr 3, 10:37 AM EDT, 1 hour 37 minutes earlier.

Area forecast discussion, Apr 3, 10:37 AM EDT, 1 hour 37 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, Apr 3, 11:55 AM EDT, 19 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, Apr 3, 9:38 AM EDT, 2 hours 36 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 Indianapolis, IN issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 2, 8:04 PM EDTSevere Thunderstorm WarningINDBoone, Clinton, Hendricks, Montgomery, Putnam26 min
Apr 2, 8:08 PM EDTSevere Thunderstorm WarningINDCarroll, Clinton, Tippecanoe22 min
Apr 2, 8:23 PM EDTSpecial Weather StatementINDCarroll37 min
Apr 2, 8:24 PM EDTSevere Thunderstorm WarningINDBoone, Clinton, Hamilton, Howard, Tipton36 min
Apr 2, 8:46 PM EDTSevere Thunderstorm WarningINDHoward, Tipton19 min
Apr 2, 8:52 PM EDTSpecial Weather StatementINDHamilton, Marion, Morgan23 min
Apr 3, 4:23 PM EDTSpecial Weather StatementINDShelby37 min
Apr 3, 4:34 PM EDTSpecial Weather StatementINDVermillion26 min
Apr 3, 4:57 PM EDTSpecial Weather StatementINDTippecanoe33 min
Apr 3, 5:07 PM EDTSevere Thunderstorm WarningINDTippecanoe, Warren38 min
Apr 3, 5:43 PM EDTSevere Thunderstorm WarningINDCarroll, Tippecanoe47 min
Apr 3, 6:05 PM EDTSpecial Weather StatementINDWarren25 min
Apr 3, 6:25 PM EDTSevere Thunderstorm WarningINDCarroll, Howard35 min
Apr 3, 6:48 PM EDTSpecial Weather StatementINDTippecanoe27 min
Apr 3, 7:05 PM EDTSevere Thunderstorm WarningINDCarroll, Clinton, Tippecanoe25 min

Nearby

River Flood Warnings in Indiana, 2026River Flood Warnings in Illinois, 2026Every 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.