Alert archive / Washington / Winter Storm Watches in 2009

Winter Storm Watch 13, NWS Spokane, WA

December 13, 200910 counties in Washington; 6 counties in Idaho

NWS Spokane, WA issued this winter storm watch at Dec 13, 2009, 2:30 PM PST for 10 counties in Washington; 6 counties in Idaho. It took effect at Dec 14, 2009, 4:00 PM PST. It was in force for .

The area

The counties it named.

The facts

Issued
Dec 13, 2009, 2:30 PM PST (22:30 UTC)
In effect from
Dec 14, 2009, 4:00 PM PST
Expired
Dec 14, 2009, 4:48 AM 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, Adams County, WA, Chelan County, WA, Douglas County, WA, Ferry County, WA, Grant County, WA, Lincoln County, WA, Okanogan County, WA, Pend Oreille County, WA, Spokane County, WA, Stevens County, WA

The radar

The Spokane radar (KOTX), 26 km from the middle of the area, began a volume at 22:32 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.

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 Dec 13, 2:20 PM PST, 10 minutes earlier.

Area forecast discussion, Dec 13, 2:20 PM PST, 10 minutes before
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Hazardous weather outlook, Dec 13, 6:30 AM PST, 8 hours before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SPOKANE WA
630 AM PST SUN DEC 13 2009

IDZ001-004-WAZ037-038-141500-
NORTHERN PANHANDLE-CENTRAL PANHANDLE MOUNTAINS-
NORTHEAST MOUNTAINS-OKANOGAN HIGHLANDS-
630 AM PST SUN DEC 13 2009

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTH IDAHO...
NORTH CENTRAL WASHINGTON AND NORTHEAST WASHINGTON.

.DAY ONE...TODAY AND TONIGHT

LIGHT SNOW ACCUMULATIONS WILL BE POSSIBLE TONIGHT FOR THE
MOUNTAINS AND VALLEYS OF THE NORTHERN AND CENTRAL IDAHO PANHANDLE.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

SIGNIFICANT SNOW ACCUMULATIONS WILL BE POSSIBLE IN THE MOUNTAINS
AND VALLEYS FROM MONDAY NIGHT THROUGH EARLY WEDNESDAY. THE ARRIVAL
OF WARMER AIR ON WEDNESDAY WILL CHANGE THE SNOW TO RAIN IN THE
VALLEYS.

IDZ003-026-027-WAZ031>033-141500-
IDAHO PALOUSE-LEWISTON AREA-LEWIS AND SOUTHERN NEZ PERCE COUNTIES-
NORTHEAST BLUE MOUNTAINS-LOWER GARFIELD AND ASOTIN COUNTIES-
WASHINGTON PALOUSE-
630 AM PST SUN DEC 13 2009

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTH IDAHO...
NORTH CENTRAL IDAHO AND SOUTHEAST WASHINGTON.

.DAY ONE...TODAY AND TONIGHT

ACCUMULATING SNOW WILL COME TO AN END BY MID TO LATE MORNING IN
THE NORTHEAST BLUE MOUNTAINS.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

ACCUMULATING SNOW WILL BE POSSIBLE MONDAY NIGHT AND EARLY TUESDAY
BEFORE PRECIPITATION TRANSITIONS OVER TO ALL RAIN TUESDAY MORNING.
LOCALLY HEAVY SNOW WILL BE LIKELY IN THE HIGH ELEVATIONS OF THE
NORTHERN BLUE MOUNTAINS.

IDZ002-WAZ034>036-141500-
COEUR DALENE AREA-MOSES LAKE AREA-UPPER COLUMBIA BASIN-
SPOKANE AREA-
630 AM PST SUN DEC 13 2009

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTH IDAHO...
EAST CENTRAL WASHINGTON AND NORTHEAST WASHINGTON.

.DAY ONE...TODAY AND TONIGHT

LIGHT SNOW SHOWERS WILL BE POSSIBLE TONIGHT. SIGNIFICANT
ACCUMULATIONS ARE NOT ANTICIPATED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

SIGNIFICANT LOW ELEVATION SNOW ACCUMULATIONS WILL BE POSSIBLE
MONDAY NIGHT THROUGH MIDDAY TUESDAY. THE ARRIVAL OF WARMER AIR
ON TUESDAY WILL CHANGE SNOW TO RAIN. THE HEAVIEST SNOWFALL
AMOUNTS ARE EXPECTED ALONG THE UPPER REACHES OF THE COLUMBIA BASIN
ALONG THE HWY 2 CORRIDOR.

WAZ041>044-141500-
WENATCHEE AREA-EAST SLOPES NORTHERN CASCADES-OKANOGAN VALLEY-
WATERVILLE PLATEAU-
630 AM PST SUN DEC 13 2009

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL
WASHINGTON AND NORTH CENTRAL WASHINGTON.

.DAY ONE...TODAY AND TONIGHT

LIGHT SNOW SHOWERS WILL BE POSSIBLE TONIGHT...MAINLY OVER THE
MOUNTAINS. SIGNIFICANT ACCUMULATIONS ARE NOT ANTICIPATED AT THIS
TIME.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

SIGNIFICANT LOW ELEVATION SNOW ACCUMULATIONS WILL BE POSSIBLE
MONDAY NIGHT THROUGH WEDNESDAY OVER THE WATERVILLE PLATEAU...THE
OKANOGAN VALLEY...AND ALONG THE EAST SLOPES OF THE NORTH
WASHINGTON CASCADES. THE ARRIVAL OF WARMER AIR ON TUESDAY NIGHT
INTO WEDNESDAY WILL CHANGE SNOW TO RAIN IN THE VALLEYS.

FOR THE HIGH ELEVATIONS OF THE NORTHERN CASCADES...SEVERAL ROUNDS
OF HEAVY SNOW APPEAR LIKELY THIS WEEK. SNOW LEVELS ARE EXPECTED TO
RISE SIGNIFICANTLY BY WEDNESDAY...AND SHOULD LIMIT ACCUMULATIONS
IN THE PASSES. UNTIL THE SNOW LEVELS RISE ON WEDNESDAY...TRAVEL
THROUGH THE PASSES MAY BE DANGEROUS.

In the hours before

Local storm report, Dec 13, 1:27 PM PST, 1 hour 3 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Dec 12, 8:42 PM PSTWinter Weather AdvisoryOTXSpokane, Whitman7 hr

Nearby

Winter Storm Watches in Washington, 2009Winter Storm Watches in Idaho, 2009Every winter storm watch in 2009

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive.