Alert archive / Montana / Snow Advisories in 2006

Snow Advisory 4, NWS Missoula, MT

January 16, 20064 counties in Montana; Lemhi County, Idaho

NWS Missoula, MT issued this snow advisory at Jan 16, 2006, 2:31 PM MST for 4 counties in Montana; Lemhi County, Idaho. It took effect at Jan 17, 2006, 1:00 AM MST. It was in force for 28 hr.

The area

The counties it named.

The facts

Issued: Jan 16, 2006, 2:31 PM MST (21:31 UTC)
In effect from: Jan 17, 2006, 1:00 AM MST
Expired: Jan 18, 2006, 5:00 AM MST
In force: 28 hr
Issued by: NWS Missoula, MT

Counties Lemhi County, ID, Deer Lodge County, MT, Granite County, MT, Powell County, MT, Silver Bow County, MT

The radar

The Missoula radar (KMSX), 127 km from the middle of the area, began a volume at 21:31 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

Spokane, WA (KOTX), launched 12:00Z, 9.5 hours before the alert went out and 305 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: 968 m above ground
0-6 km bulk shear: 52 kt
0-1 km storm-relative helicity: 32 m²/s²
0-3 km storm-relative helicity: 101 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 Missoula, MT wrote its last area forecast discussion before this snow advisory went out at Jan 16, 2:30 PM MST, 1 minute earlier.

Area forecast discussion, Jan 16, 2:30 PM MST, 1 minute before

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Hazardous weather outlook, Jan 16, 1:58 PM MST, 33 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>
      <p id="message2">
        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 Missoula, MT issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jan 16, 3:11 AM MST	Winter Storm Warning	MSO	Flathead, Granite, Lake, Lincoln, Mineral, Missoula and 3 more	50 hr
Jan 16, 3:15 AM MST	Wind Advisory	MSO	Clearwater, Idaho	14 hr

Nearby

Snow Advisories in Montana, 2006 Snow Advisories in Idaho, 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.