Alert archive / Iowa / Flash Flood Watches in 2015

Flash Flood Watch 8, NWS Des Moines, IA

September 6, 201533 counties in Iowa

NWS Des Moines, IA issued this flash flood watch at Sep 6, 2015, 4:06 AM CDT for 33 counties in Iowa. It took effect at Sep 6, 2015, 7:00 PM CDT. It was in force for 13 hr.

The area

The counties it named.

The facts

Issued: Sep 6, 2015, 4:06 AM CDT (09:06 UTC)
In effect from: Sep 6, 2015, 7:00 PM CDT
Expired: Sep 7, 2015, 7:40 AM CDT
In force: 13 hr
Issued by: NWS Des Moines, IA
Flood severity: None

All 33 counties

Adair County, IA, Adams County, IA, Appanoose County, IA, Audubon County, IA, Black Hawk County, IA, Boone County, IA, Cass County, IA, Clarke County, IA, Dallas County, IA, Davis County, IA, Decatur County, IA, Greene County, IA, Grundy County, IA, Guthrie County, IA, Hamilton County, IA, Hardin County, IA, Jasper County, IA, Lucas County, IA, Madison County, IA, Mahaska County, IA, Marion County, IA, Marshall County, IA, Monroe County, IA, Polk County, IA, Poweshiek County, IA, Ringgold County, IA, Story County, IA, Tama County, IA, Taylor County, IA, Union County, IA, Wapello County, IA, Warren County, IA, Wayne County, IA

The radar

The Des Moines radar (KDMX), 32 km from the middle of the area, began a volume at 09:07 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.

What forecasters said that day

The local office's own words before this flash flood watch went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Des Moines, IA wrote its last area forecast discussion before this flash flood watch went out at Sep 6, 3:56 AM CDT, 10 minutes earlier.

Area forecast discussion, Sep 6, 3:56 AM CDT, 10 minutes before

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Hazardous weather outlook, Sep 5, 3:54 PM CDT, 12 hours 12 minutes before

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  <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.
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      <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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The office that day

Everything else NWS Des Moines, IA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Sep 6, 5:55 PM CDT	Special Weather Statement	DMX	Calhoun	35 min
Sep 6, 6:05 PM CDT	Severe Thunderstorm Warning	DMX	Calhoun, Humboldt, Pocahontas	40 min
Sep 6, 6:13 PM CDT	Severe Thunderstorm Warning	DMX	Hancock	47 min
Sep 6, 6:25 PM CDT	Severe Thunderstorm Warning	DMX	Calhoun	35 min
Sep 6, 6:52 PM CDT	Severe Thunderstorm Warning	DMX	Calhoun, Carroll, Greene	53 min

Nearby

Flash Flood Watches in Iowa, 2015 Every flash flood watch in 2015

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.