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National Weather Service:
Air Stagnation Advisory

Current Conditions
Updated: 6:53 AM PST on February 05, 2012
Clear Ephrata: 25°
 Clear
Wind: 5 mph from the North
Dew Point: 21 °F
Pressure: 30.40 in
Windchill: 19 °F
Humidity: 85%
Visibility: 10.0 miles
Local Radar
Local Satellite
5 Day Forecast for Ephrata
Sun Mon Tue Wed Thu
Clear Partly Cloudy Partly Cloudy Partly Cloudy Partly Cloudy
Clear Partly Cloudy Partly Cloudy Partly Cloudy Partly Cloudy
41° | 22° 38° | 22° 38° | 20° 40° | 22° 41° | 23°
Forecast as of 4:03 am PST on February 5, 2012

Air stagnation advisory in effect until 10 am PST Tuesday below 4000 feet...
Today
Sunny. Patchy fog in the morning. Highs in the 40s. North wind 5 to 10 mph.
Tonight
Mostly clear. Lows in the 20s. Northeast wind 5 to 10 mph.
Monday
Mostly sunny. Patchy fog in the morning. Highs in the upper 30s to lower 40s. Northeast wind 5 to 15 mph.
Monday Night
Mostly clear. Lows in the lower to mid 20s. Northeast wind 5 to 10 mph in the evening...becoming 5 to 15 mph overnight.
Tuesday
Mostly sunny. Highs in the upper 30s to lower 40s. Northeast wind 5 to 15 mph in the morning...becoming 5 to 10 mph in the afternoon.
Tuesday Night
Partly cloudy. Lows in the lower to mid 20s.
Wednesday
Partly sunny. Highs in the mid 30s to lower 40s.
Wednesday Night through Saturday
Partly cloudy. Lows in the mid to upper 20s. Highs in the upper 30s to upper 40s.
Astronomy
Sunrise:07:19 AM (PST) Moon Rise:03:05 PM (PST)
Sunset:05:05 PM (PST) Moon Set:05:39 AM (PST)
Moon Phase
Feb. 05 Feb. 07 Feb. 14 Feb. 21 Feb. 29
Air Stagnation Advisory
Statement as of 10:48 am PST on February 4, 2012

... Air stagnation advisory remains in effect until 10 am PST
Tuesday below 4000 feet...

An air stagnation advisory below 4000 feet remains in effect
until 10 am PST Tuesday.

* Timing: through at least Tuesday morning.

* Locations include: valleys of the east slopes of the Cascades
including Leavenworth... wintrhop... and the Lake Chelan area.
Much of central and north central Washington including
Wenatchee... Waterville... Republic and Omak. The valleys of the
northeast Washington mountains including Colville... Chewelah... and
Cusick.

* Impacts: air quality will likely decrease through the weekend
into early next week.

Precautionary/preparedness actions...

An air stagnation advisory indicates that due to limited movement
of an air mass across the advisory area... pollution has the
potential to increase to dangerous levels. Please check with you
local air quality agency for possible restrictions in your area.
 

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