Alert archive / Iowa / Snow Advisories in 2006

Snow Advisory 5, NWS Des Moines, IA

November 10, 20069 counties in Iowa

NWS Des Moines, IA issued this snow advisory at Nov 10, 2006, 3:54 AM CST for 9 counties in Iowa. It was in force for 8 hr.

The area

The counties it named.

The facts

Issued: Nov 10, 2006, 3:54 AM CST (09:54 UTC)
Expired: Nov 10, 2006, 12:00 PM CST
In force: 8 hr
Issued by: NWS Des Moines, IA

Counties Cerro Gordo County, IA, Emmet County, IA, Hancock County, IA, Humboldt County, IA, Kossuth County, IA, Palo Alto County, IA, Pocahontas County, IA, Winnebago County, IA, Worth County, IA

The radar

The Des Moines radar (KDMX), 157 km from the middle of the area, began a volume at 09:57 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 nearest sounding before it

Minneapolis, MN (KMPX), launched 00:00Z, 9.9 hours before the alert went out and 196 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1395 m above ground
0-6 km bulk shear: 68 kt
0-1 km storm-relative helicity: -163 m²/s²
0-3 km storm-relative helicity: 146 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this snow advisory 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 snow advisory went out at Nov 9, 9:54 PM CST, 6 hours earlier.

Area forecast discussion, Nov 9, 9:54 PM CST, 6 hours before

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Hazardous weather outlook, Nov 9, 11:20 PM CST, 4 hours 34 minutes before

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</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>
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        Please try again in a few minutes.
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        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
Nov 10, 3:54 AM CST	Winter Weather Advisory	DMX	Black Hawk, Boone, Bremer, Butler, Calhoun, Dallas and 10 more	12 hr
Nov 10, 8:20 AM CST	Severe Thunderstorm Warning	DMX	Jasper	29 min
Nov 10, 8:36 AM CST	Severe Thunderstorm Warning	DMX	Poweshiek	18 min
Nov 10, 8:47 AM CST	Heavy Snow Warning	DMX	Kossuth, Palo Alto	3 hr
Nov 10, 8:47 AM CST	Winter Storm Warning	DMX	Cerro Gordo, Hancock, Winnebago, Worth	7 hr
Nov 10, 12:25 PM CST	Heavy Snow Warning	DMX	Kossuth	95 min
Nov 10, 12:25 PM CST	Snow Advisory	DMX	Calhoun, Humboldt, Webster	95 min

Nearby

Snow Advisories in Iowa, 2006 Every snow advisory in 2006

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.