Alert archive / Idaho / Snow Advisories in 2006

Snow Advisory 34, NWS Spokane, WA

December 24, 2006Douglas County, Okanogan County, Washington; 4 counties in Idaho

NWS Spokane, WA issued this snow advisory at Dec 24, 2006, 4:07 AM PST for Douglas County, Okanogan County, Washington; 4 counties in Idaho. It took effect at Dec 24, 2006, 4:00 PM PST. It was in force for 30 hr.

The area

The counties it named.

The facts

Issued: Dec 24, 2006, 4:07 AM PST (12:07 UTC)
In effect from: Dec 24, 2006, 4:00 PM PST
Expired: Dec 25, 2006, 9:54 PM PST
In force: 30 hr
Issued by: NWS Spokane, WA

Counties Benewah County, ID, Kootenai County, ID, Latah County, ID, Shoshone County, ID, Douglas County, WA, Okanogan County, WA

The radar

The Spokane radar (KOTX), 14 km from the middle of the area, began a volume at 12:09 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, 0.1 hours before the alert went out and 89 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: 846 m above ground
0-6 km bulk shear: 82 kt
0-1 km storm-relative helicity: 13 m²/s²
0-3 km storm-relative helicity: 52 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 Dec 24, 3:42 AM PST, 25 minutes earlier.

Area forecast discussion, Dec 24, 3:42 AM PST, 25 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>

Hazardous weather outlook, Dec 23, 7:45 PM PST, 8 hours 22 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 Spokane, WA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Dec 24, 4:07 AM PST	Winter Storm Watch	OTX	Ferry, Okanogan, Pend Oreille, Spokane, Stevens	11 hr
Dec 24, 2:55 PM PST	Winter Weather Advisory	OTX	Chelan, Douglas, Ferry, Grant, Okanogan, Pend Oreille and 2 more	6 hr

Nearby

Snow Advisories in Idaho, 2006 Snow Advisories in Washington, 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.