State Map
East Slopes of the Central Cascades of Washington
East Slopes of the Southern Cascades of Washington
San Juan County
Western Whatcom County
Central Cascade Foothills
Western Skagit County
Everett and Vicinity
Seattle Metropolitan Area
Tacoma Area
Admiralty Inlet Area
Hood Canal, Kitsap Peninsula
Southwest Interior
Olympics
Eastern Strait of Juan de Fuca
Western Strait of Juan de Fuca
North Coast
Central Coast
West Slopes Northern Cascades and Passes
West Slopes Central Cascades and Passes
South Washington Cascades
Willapa Hills
South Washington Coast
Lower Columbia and I-5 Corridor in Cowlitz County
Western Columbia River Gorge
East Columbia River Gorge
Kittitas Valley
Yakima Valley
Lower Columbia Basin
Foothills of the Blue Mountains
Northwest Blue Mountains
Northeast Blue Mountains
Lower Garfield and Asotin Counties
Washington Palouse
Moses Lake Area
Upper Columbia Basin
Spokane Area
Northeast Mountains
Okanogan Highlands
Greater Vancouver Area
South Washington Cascade Foothills
Wenatchee Area
East Slopes Northern Cascades
Okanogan Valley
Waterville Plateau
East Slopes of the Central Cascades of Washington East Slopes of the Southern Cascades of Washington San Juan County Western Whatcom County Central Cascade Foothills Northwest Interior Everett and Vicinity Seattle Metropolitan Area Tacoma Area Admiralty Inlet Area Hood Canal, Kitsap Peninsula Southwest Interior Olympics Eastern Strait of Juan de Fuca Western Strait of Juan de Fuca North Coast Central Coast West Slopes Northern Cascades and Passes West Slopes Central Cascades and Passes South Washington Cascades Willapa Hills South Washington Coast Lower Columbia and I-5 Corridor in Cowlitz County Western Columbia River Gorge East Columbia River Gorge Kittitas Valley Yakima Valley Lower Columbia Basin Foothills of the Blue Mountains Northwest Blue Mountains Northeast Blue Mountains Lower Garfield and Asotin Counties Washington Palouse Moses Lake Area Upper Columbia Basin Spokane Area Northeast Mountains Okanogan Highlands Greater Vancouver Area South Washington Cascade Foothills Wenatchee Area East Slopes Northern Cascades Okanogan Valley Waterville Plateau

Ryegrass Summit on I-90 @ MP 126

National Weather Service Warning - Non-Precipitation Warning for Kittitas Valley

Issued: 9:40 PM Dec 17  Will Expire: 6:45 AM Dec 18


URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE PENDLETON OR
940 PM PST WED DEC 17 2014

...STAGNANT CONDITIONS TO CONTINUE THROUGH THE WEEK...

.INVERSIONS WILL RESULT IN STAGNANT CONDITIONS WITH LOW CLOUDS
AND DENSE FOG AT TIMES.


/O.CON.KPDT.AS.Y.0004.000000T0000Z-141219T1800Z/
/O.CON.KPDT.FG.Y.0014.000000T0000Z-141218T1800Z/
KITTITAS VALLEY-
INCLUDING THE CITIES OF...ELLENSBURG...THORP
940 PM PST WED DEC 17 2014

...AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST
FRIDAY...
...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST
THURSDAY...

AN AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST
FRIDAY. A DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST
THURSDAY.

* TIMING: AIR STAGNATION ADVISORY THROUGH AT LEAST MIDDAY FRIDAY.
WIDESPREAD DENSE FOG WILL DEVELOP IN THE KITTITAS VALLEY TONIGHT.
RAIN SHOWERS OVERNIGHT MAY BRIEFLY IMPROVE VISIBILITIES.

* VISIBILITIES: ONE QUARTER OF A MILE OR LESS AT TIMES.

* LOCATIONS: THE KITTITAS VALLEY.

* IMPACTS: POLLUTANTS TRAPPED NEAR THE SURFACE CAN NEGATIVELY
AFFECT THOSE WITH RESPIRATORY CONDITIONS. MOTORISTS WILL
HAVE TO USE CAUTION AS VISIBILITIES WILL CHANGE SUDDENLY.
ROADWAYS MAY BECOME SLICK IN AREAS WHERE TEMPERATURES FALL
TO AROUND FREEZING.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

AN AIR STAGNATION ADVISORY INDICATES THAT DUE TO LIMITED MOVEMENT
OF AN AIR MASS ACROSS THE ADVISORY AREA...POLLUTION WILL
INCREASE. CHECK WITH YOUR LOCAL AIR QUALITY AGENCY FOR POSSIBLE
RESTRICTIONS IN YOUR AREA. FOR ADDITIONAL WEATHER INFORMATION...
CHECK OUR WEBSITE AT WWW.WEATHER.GOV/PENDLETON.

A DENSE FOG ADVISORY MEANS VISIBILITIES WILL FREQUENTLY BE
REDUCED TO LESS THAN ONE QUARTER MILE. IF DRIVING...SLOW DOWN...
USE YOUR HEADLIGHTS...AND LEAVE PLENTY OF DISTANCE AHEAD OF YOU.

&&

$$