Alert archive / Idaho / Winter Storm Watches in 2007

Winter Storm Watch 3, NWS Spokane, WA

January 6, 2007Pend Oreille County, Spokane County, Stevens County, Washington; 6 counties in Idaho

NWS Spokane, WA issued this winter storm watch at Jan 6, 2007, 4:09 AM PST for Pend Oreille County, Spokane County, Stevens County, Washington; 6 counties in Idaho. It took effect at Jan 7, 2007, 4:00 AM PST. It was in force for .

The area

The counties it named.

The facts

Issued: Jan 6, 2007, 4:09 AM PST (12:09 UTC)
In effect from: Jan 7, 2007, 4:00 AM PST
Expired: Jan 6, 2007, 3:19 PM PST
In force
Issued by: NWS Spokane, WA

Counties Benewah County, ID, Bonner County, ID, Boundary County, ID, Kootenai County, ID, Latah County, ID, Shoshone County, ID, Pend Oreille County, WA, Spokane County, WA, Stevens County, WA

The radar

The Spokane radar (KOTX), 62 km from the middle of the area, began a volume at 12:11 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, 0.2 hours before the alert went out and 37 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: 693 m above ground
0-6 km bulk shear: 44 kt
0-1 km storm-relative helicity: 337 m²/s²
0-3 km storm-relative helicity: 345 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 Spokane, WA wrote its last area forecast discussion before this winter storm watch went out at Jan 6, 3:28 AM PST, 41 minutes earlier.

Area forecast discussion, Jan 6, 3:28 AM PST, 41 minutes before

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Hazardous weather outlook, Jan 6, 1:31 AM PST, 2 hours 38 minutes before

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In the hours before

Local storm report, Jan 5, 10:47 PM PST, 5 hours 22 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPOKANE WA
1047 PM PST FRI JAN 05 2007

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0555 PM     HEAVY SNOW       PLAIN                   47.60N 114.12W
01/05/2007  M4.0 INCH        LAKE               MT   TRAINED SPOTTER

            NEW SNOW TOTAL. ELEVATION 1960. CHELAN 10.

0600 PM     HEAVY SNOW       20 NW LEAVENWORTH       47.80N 120.97W
01/05/2007  M4.0 INCH        CHELAN             WA   TRAINED SPOTTER

            LAKE WENATCHEE, AFTERNOON TOTAL. CHELAN 34.

0615 PM     HEAVY SNOW       CLAYTON                 44.26N 114.40W
01/05/2007  E4.0 INCH        CUSTER             ID   NWS EMPLOYEE

            AFTERNOON TOTAL.

1030 PM     HEAVY SNOW       SANDPOINT               48.28N 116.56W
01/05/2007  E4.0 INCH        BONNER             ID   TRAINED SPOTTER

            CURRENT ACCUMULATION AND SNOWING HARD. ELEVATION 2106.
            BONNER 2.

&&

SSAVOY

Local storm report, Jan 6, 12:50 AM PST, 3 hours 19 minutes before

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Local storm report, Jan 6, 1:02 AM PST, 3 hours 7 minutes before

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The office that day

Everything else NWS Spokane, WA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jan 6, 3:19 PM PST	High Wind Watch	OTX	Chelan, Douglas, Grant	6 hr
Jan 6, 3:19 PM PST	Snow and Blowing Snow Advisory	OTX	Ferry, Okanogan	22 hr
Jan 6, 3:19 PM PST	Wind Advisory	OTX	Adams, Asotin, Douglas, Garfield, Grant, Lincoln and 3 more	28 hr
Jan 6, 3:19 PM PST	Winter Storm Warning	OTX	Pend Oreille, Spokane, Stevens	31 hr

Nearby

Winter Storm Watches in Idaho, 2007 Winter Storm Watches in Washington, 2007 Every winter storm watch in 2007

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.