Alert archive / Montana / Winter Storm Watches in 2006

Winter Storm Watch 3, NWS Missoula, MT

January 13, 2006Granite County, Missoula County, Ravalli County, Montana; Idaho County, Lemhi County, Idaho

NWS Missoula, MT issued this winter storm watch at Jan 13, 2006, 4:12 AM MST for Granite County, Missoula County, Ravalli County, Montana; Idaho County, Lemhi County, Idaho. It took effect at Jan 14, 2006, 5:00 PM MST. It was in force for 15 hr.

The area

The counties it named.

The facts

Issued: Jan 13, 2006, 4:12 AM MST (11:12 UTC)
In effect from: Jan 14, 2006, 5:00 PM MST
Expired: Jan 15, 2006, 8:15 AM MST
In force: 15 hr
Issued by: NWS Missoula, MT

Counties Idaho County, ID, Lemhi County, ID, Granite County, MT, Missoula County, MT, Ravalli County, MT

The radar

The Missoula radar (KMSX), 110 km from the middle of the area, began a volume at 11:09 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

Great_falls, MT (KTFX), launched 00:00Z, 11.2 hours before the alert went out and 314 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: 1717 m above ground
0-6 km bulk shear: 90 kt
0-1 km storm-relative helicity: 146 m²/s²
0-3 km storm-relative helicity: 148 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 winter storm watch 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 winter storm watch went out at Jan 12, 7:47 PM MST, 8 hours 25 minutes earlier.

Area forecast discussion, Jan 12, 7:47 PM MST, 8 hours 25 minutes before

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Hazardous weather outlook, Jan 12, 8:44 PM MST, 7 hours 28 minutes before

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      <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.
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      <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 12, 7:50 PM MST	Winter Storm Warning	MSO	Flathead, Lake, Lincoln, Sanders	27 hr
Jan 12, 7:49 PM MST	High Wind Warning	MSO	Clearwater, Idaho	8 hr
Jan 13, 4:05 AM MST	Wind Advisory	MSO	Clearwater, Idaho	3 hr

Nearby

Winter Storm Watches in Montana, 2006 Winter Storm Watches in Idaho, 2006 Every winter storm watch 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.