Alert archive / Washington / Snow Advisories in 2008

Snow Advisory 22, NWS Spokane, WA

March 27, 20088 counties in Washington; Benewah County, Kootenai County, Latah County, Idaho

NWS Spokane, WA issued this snow advisory at Mar 27, 2008, 8:51 PM PDT for 8 counties in Washington; Benewah County, Kootenai County, Latah County, Idaho. It took effect at Mar 28, 2008, 3:44 AM PDT. It was in force for 30 hr.

The area

The counties it named.

The facts

Issued: Mar 27, 2008, 8:51 PM PDT (03:51 UTC)
In effect from: Mar 28, 2008, 3:44 AM PDT
Expired: Mar 29, 2008, 10:06 AM PDT
In force: 30 hr
Issued by: NWS Spokane, WA

Counties Benewah County, ID, Kootenai County, ID, Latah County, ID, Adams County, WA, Chelan County, WA, Douglas County, WA, Grant County, WA, Lincoln County, WA, Okanogan County, WA, Spokane County, WA, Whitman County, WA

The radar

The Spokane radar (KOTX), 57 km from the middle of the area, began a volume at 03:55 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 00:00Z, 3.9 hours before the alert went out and 146 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: 7 J/kg
Mixed-layer CIN: -18 J/kg
Mixed-layer LCL: 2076 m above ground
0-6 km bulk shear: 39 kt
0-1 km storm-relative helicity: 107 m²/s²
0-3 km storm-relative helicity: 81 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 Spokane, WA wrote its last area forecast discussion before this snow advisory went out at Mar 27, 5:17 PM PDT, 3 hours 34 minutes earlier.

Area forecast discussion, Mar 27, 5:17 PM PDT, 3 hours 34 minutes before

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Hazardous weather outlook, Mar 27, 4:17 PM PDT, 4 hours 34 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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        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 Spokane, WA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Mar 28, 3:44 AM PDT	Heavy Snow Warning	OTX	Douglas, Ferry, Grant, Lincoln, Okanogan, Pend Oreille and 2 more	37 hr
Mar 28, 3:44 AM PDT	Winter Storm Warning	OTX	Asotin, Garfield	31 hr

Nearby

Snow Advisories in Washington, 2008 Snow Advisories in Idaho, 2008 Every snow advisory in 2008

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.