Alert archive / Montana / River Flood Watches in 2009

River Flood Watch 9, NWS Missoula, MT

May 29, 2009Ravalli County, Montana

NWS Missoula, MT issued this river flood watch at May 29, 2009, 10:17 AM MDT for Ravalli County, Montana. It took effect at May 30, 2009, 4:50 AM MDT. It was in force for 27 hr.

The area

The counties it named.

The facts

Issued
May 29, 2009, 10:17 AM MDT (16:17 UTC)
In effect from
May 30, 2009, 4:50 AM MDT
Expired
May 31, 2009, 7:51 AM MDT
In force
27 hr
Issued by
NWS Missoula, MT
Flood severity
Minor

County Ravalli County, MT

The radar

The Missoula radar (KMSX), 107 km from the middle of the area, began a volume at 16:23 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 Bitterroot River near Darby (DARM8). The gauge peaked at 7.59 ft at May 31, 2009, 5:00 AM MDT.

actionminor678905/2905/3005/3106/01
Action stage
7 ft
Minor stage
7.5 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 12344000, 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 watch went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Missoula, MT wrote its last area forecast discussion before this river flood watch went out at May 29, 6:11 AM MDT, 4 hours 6 minutes earlier.

Area forecast discussion, May 29, 6:11 AM MDT, 4 hours 6 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 Missoula, MT issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 29, 10:04 AM MDTAreal Flood AdvisoryMSODeer Lodge47 hr
May 29, 10:17 AM MDTRiver Flood WatchMSORavalli46 hr
May 29, 10:17 AM MDTRiver Flood WatchMSOMissoula46 hr

Nearby

River Flood Watches in Montana, 2009Every river flood watch in 2009

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.