Alert archive / Washington / Heavy Snow Warnings in 2007

Heavy Snow Warning 8, NWS Spokane, WA

October 17, 20075 counties in Washington; Bonner County, Boundary County, Kootenai County, Idaho

NWS Spokane, WA issued this heavy snow warning at Oct 17, 2007, 2:54 PM PDT for 5 counties in Washington; Bonner County, Boundary County, Kootenai County, Idaho. It took effect at Oct 18, 2007, 8:00 AM PDT. It was in force for . No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Oct 17, 2007, 2:54 PM PDT (21:54 UTC)
In effect from: Oct 18, 2007, 8:00 AM PDT
Expired: Oct 18, 2007, 4:55 AM PDT
In force
Issued by: NWS Spokane, WA

Counties Bonner County, ID, Boundary County, ID, Kootenai County, ID, Ferry County, WA, Okanogan County, WA, Pend Oreille County, WA, Spokane County, WA, Stevens County, WA

The radar

The Spokane radar (KOTX), 68 km from the middle of the area, began a volume at 21:51 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 heavy snow warning 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 heavy snow warning went out at Oct 17, 2:46 PM PDT, 8 minutes earlier.

Area forecast discussion, Oct 17, 2:46 PM PDT, 8 minutes before

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Hazardous weather outlook, Oct 17, 2:49 PM PDT, 5 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SPOKANE WA
249 PM PDT WED OCT 17 2007

IDZ001-WAZ037-038-042-182200-
NORTHERN PANHANDLE-NORTHEAST MOUNTAINS-OKANOGAN HIGHLANDS-
EAST SLOPES NORTHERN CASCADES-
INCLUDING THE CITIES OF...SANDPOINT...RATHDRUM...BONNERS FERRY...
PRIEST RIVER...COLVILLE...DEER PARK...CHEWELAH...NEWPORT...
KETTLE FALLS...REPUBLIC...INCHELIUM...LEAVENWORTH...MAZAMA...
TWISP...WINTHROP
249 PM PDT WED OCT 17 2007

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

THE FOLLOWING WATCHES WARNINGS OR ADVISORIES ARE CURRENTLY IN EFFECT
   SNOW ADVISORY IN EFFECT FROM 6 AM TO 6 PM PDT THURSDAY ABOVE
     3000 FEET FOR EAST SLOPES NORTH CASCADES
   HEAVY SNOW WARNING IN EFFECT FROM 8 AM THURSDAY TO 3 PM PDT
     FRIDAY ABOVE 5000 FEET FOR OKANOGAN HIGHLANDS
   HEAVY SNOW WARNING IN EFFECT FROM 11 AM THURSDAY TO 10 PM PDT
     FRIDAY ABOVE 5000 FEET FOR NORTH IDAHO PANHANDLE
   HEAVY SNOW WARNING IN EFFECT FROM 9 AM THURSDAY TO 10 PM PDT
     FRIDAY ABOVE 5000 FEET FOR NORTHEAST MOUNTAINS

PLEASE SEE THE FOLLOWING PRODUCTS FOR MORE INFORMATION.
   SEAWSWOTX  /WWUS46 KOTX/

.DAY ONE...THIS AFTERNOON AND TONIGHT

A WEAK SYSTEM WILL PASS THROUGH THE AREA THROUGH TONIGHT WITH NO
HAZARDOUS WEATHER EXPECTED.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

A COUPLE STRONG SYSTEMS WILL IMPACT THE AREA THURSDAY AND FRIDAY.
SIGNIFICANT EARLY SEASON SNOW ACCUMULATIONS ARE LIKELY ABOVE 5000
FEET OM THE OKANOGAN HIGHLANDS...NORTHEAST MOUNTAINS...AND NORTH PANHANDLE.
MODERATE ACCUMULATIONS ARE ALSO LIKELY ON THURSDAY ABOVE 3000 FEET
ALONG THE EAST SLOPES OF THE NORTH WASHINGTON CASCADES.

IDZ002>004-026-027-WAZ031>036-041-043-044-182200-
COEUR DALENE AREA-IDAHO PALOUSE-CENTRAL PANHANDLE MOUNTAINS-
LEWISTON AREA-LEWIS AND SOUTHERN NEZ PERCE COUNTIES-
NORTHEAST BLUE MOUNTAINS-LOWER GARFIELD AND ASOTIN COUNTIES-
WASHINGTON PALOUSE-MOSES LAKE AREA-UPPER COLUMBIA BASIN-
SPOKANE AREA-WENATCHEE AREA-OKANOGAN VALLEY-WATERVILLE PLATEAU-
INCLUDING THE CITIES OF...COEUR DALENE...POST FALLS...HAYDEN...
MOSCOW...ST. MARIES...KELLOGG...PINEHURST...OSBURN...WALLACE...
MULLAN...LEWISTON...KAMIAH...CRAIGMONT...NEZPERCE...WINCHESTER...
ANATONE...PEOLA...CLARKSTON...PULLMAN...MOSES LAKE...EPHRATA...
OTHELLO...QUINCY...RITZVILLE...COULEE DAM...ODESSA...
ELECTRIC CITY...WILBUR...GRAND COULEE...COULEE CITY...SPOKANE...
WENATCHEE...OMAK...OKANOGAN...BREWSTER...BRIDGEPORT...OROVILLE...
WATERVILLE...MANSFIELD
249 PM PDT WED OCT 17 2007

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

.DAY ONE...THIS AFTERNOON AND TONIGHT

A WEAK SYSTEM WILL PASS THROUGH THE AREA TODAY WITH NO HAZARDOUS WEATHER
EXPECTED.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

A STRONG SYSTEM WILL IMPACT THE AREA ON THURSDAY...BRINGING RAIN
TO MOST VALLEY LOCATIONS AND SNOW IN THE MOUNTAINS WITH SNOW
LEVELS RISING FROM 4500-5000 FEET THURSDAY MORNING TO NEAR
5500-6000 FEET THURSDAY AFTERNOON AND EVENING. AS A SURFACE LOW
TRACKS NORTH INTO BRITISH COLUMBIA...WINDY CONDITIONS MAY DEVELOP
ESPECIALLY IN THE SPOKANE/COEUR DALENE AREAS...AND THE PALOUSE
THURSDAY EVENING. A SECOND SYSTEM WILL MOVE INTO THE AREA ON
FRIDAY...BRINGING ANOTHER ROUND OF VALLEY RAIN AND MOUNTAIN SNOW TO
THE AREA. WINDY CONDITIONS CAN ALSO BE EXPECTED ACROSS THE UPPER
COLUMBIA BASIN AND PALOUSE LATE FRIDAY MORNING THROUGH THE EARLY
EVENING.

The office that day

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

Issued	Product	Office	Counties	Lasted
Oct 17, 2:54 PM PDT	Snow Advisory	OTX		14 hr

Nearby

Heavy Snow Warnings in Washington, 2007 Heavy Snow Warnings in Idaho, 2007 Every heavy snow warning 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; radar from the NEXRAD Level II archive.