Omak, Washington Weather Conditions

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National Weather Service:

Air Stagnation Advisory View All Alerts

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Current Conditions

  • 32°
  • Clear
  • Wind: North 16 mph
  • Humidity: 54%
  • Visibility: 10.0 miles
  • Dew Point: 17°
  • Pressure: 30.60 in. -
  • Heat Index: 21

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Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Thursday
  • Clear
  • High: 35 °
  • Low: 21 °
  • Clear
  • Friday
  • Clear
  • High: 41 °
  • Low: 21 °
  • Clear
  • Saturday
  • Clear
  • High: 42 °
  • Low: 21 °
  • Clear
  • Sunday
  • Clear
  • High: 36 °
  • Low: 23 °
  • Clear
  • Monday
  • Partly Cloudy
  • High: 36 °
  • Low: 25 °
  • Partly Cloudy

Forecast for Omak, Washington

Updated: 3:06 PM PST on November 26, 2015

Air stagnation advisory in effect from 9 PM this evening to noon PST Monday...
  • Tonight

    Clear. Lows 14 to 18.

  • Friday

    Sunny. Highs in the lower to mid 30s.

  • Friday Night

    Clear. Patchy fog overnight. Lows 14 to 18.

  • Saturday

    Sunny. Highs in the mid 30s.

  • Saturday Night

    Mostly clear. Lows 14 to 20.

  • Sunday

    Mostly sunny. Highs in the lower 30s.

  • Sunday Night through Tuesday Night

    Mostly cloudy. Patchy fog. Lows 18 to 27. Highs in the upper 20s to lower 30s.

  • Wednesday and Wednesday Night

    Mostly cloudy with a 40 percent chance of snow. Highs in the lower 30s. Lows in the upper 20s.

  • Thursday

    Mostly cloudy with a 50 percent chance of rain or snow. Highs in the 30s.

Severe Weather Alert Descriptions

 Air Stagnation Advisory  Statement as of 11:40 am PST on November 26, 2015

... Air stagnation advisory remains in effect from 9 PM this
evening to noon PST Monday...

* air quality... poor ventilation will result in a build up of
pollutants near the surface. Mountain valleys will be
especially susceptible to stagnant air and pollution build up.
Light northeasterly winds across the basin will also tend to
push pollutants up against the east slopes of the northern
Cascades between Thursday and Saturday. These winds will
become calm by Sunday with a greater risk of pollutant build
up over much of the region by this time.

* Timing... Thursday night through Monday morning.

* Impacts... prolonged periods of stagnant air can hold fine
particulates close to the ground and degrade air quality.

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. Persons with
respiratory illness should follow their physicians advice for
dealing with high levels of air pollution.

During periods of stagnant air... state air quality agencies
highly recommended that no outdoor burning occur and that
residential wood burning devices be limited as much as possible.
According to state air quality agencies... prolonged periods of
stagnant air can hold pollutants close to the ground... where
people live and breathe.

Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: Omak, Omak, WA

Updated: 3:04 PM PST

Temperature: 34.3 °F Dew Point: 19 °F Humidity: 54% Wind: NNE at 8.5 mph Pressure: 30.51 in Hourly Precipitation: 0.00 in Windchill: 27 °F Graphs

Location: OKANOGAN / MALOTT, Okanogan, WA

Updated: 3:09 PM PST

Temperature: 43.3 °F Dew Point: 17 °F Humidity: 34% Wind: NW at 8.5 mph Pressure: 30.53 in Hourly Precipitation: 0.00 in Windchill: 38 °F Graphs

Location: Silver Spur Resort, Brewster, WA

Updated: 2:58 PM PST

Temperature: 32.7 °F Dew Point: 18 °F Humidity: 54% Wind: North at 3.0 mph Pressure: 30.58 in Hourly Precipitation: 0.00 in Windchill: 33 °F Graphs

Location: Brewster, WA

Updated: 3:09 PM PST

Temperature: 35.2 °F Dew Point: 20 °F Humidity: 53% Wind: North at 6.0 mph Pressure: 30.30 in Hourly Precipitation: 0.00 in Windchill: 30 °F Graphs

Location: Tonasket School District, Tonasket, WA

Updated: 3:09 PM PST

Temperature: 31.8 °F Dew Point: 20 °F Humidity: 62% Wind: NNW at 5.0 mph Pressure: 29.53 in Hourly Precipitation: 0.00 in Windchill: 27 °F Graphs

Location: Sinlahekin Wildlife Area, Loomis, WA

Updated: 3:09 PM PST

Temperature: 28.9 °F Dew Point: 18 °F Humidity: 63% Wind: NNE at 5.0 mph Pressure: 30.68 in Hourly Precipitation: 0.00 in Windchill: 23 °F Graphs

Location: Biebesheimer Retreat, Chiliwist Valley, Brewster, WA

Updated: 3:09 PM PST

Temperature: 32.0 °F Dew Point: 13 °F Humidity: 44% Wind: Calm Pressure: 28.62 in Hourly Precipitation: 0.00 in Windchill: 32 °F Graphs

Location: South Pipestone Canyon, Twisp, WA

Updated: 3:09 PM PST

Temperature: 34.0 °F Dew Point: 20 °F Humidity: 55% Wind: South at 2.0 mph Pressure: 28.01 in Hourly Precipitation: 0.00 in Windchill: 34 °F Graphs

Location: Loup Loup Ski Bowl, Twisp, WA

Updated: 3:09 PM PST

Temperature: 24.3 °F Dew Point: 15 °F Humidity: 67% Wind: West at 1.1 mph Pressure: 30.52 in Hourly Precipitation: 83.85 in Windchill: 24 °F Graphs

Location: Moore Drive, Riverside, WA

Updated: 3:06 PM PST

Temperature: 22.1 °F Dew Point: 17 °F Humidity: 81% Wind: North at - Pressure: 25.80 in Hourly Precipitation: - Windchill: 22 °F Graphs

MSN Maps of:

Temp: Dew Point: Humidity Wind Pressure Hr Precip -

NWS Forecaster Discussion

Area forecast discussion...updated 
National Weather Service Spokane Washington 
244 PM PST Thursday Nov 26 2015 

chilly temperatures and clear skies are expected through at least Friday 
as strong high pressure builds over the Pacific northwest. Light 
winds and a strengthening inversion will increase the potential 
for air stagnation this weekend. We will also have the potential 
for areas of fog and low clouds over the weekend into early next 
week. The next chance of precipitation is expected next Wednesday 
with the arrival of a frontal system. 



Tonight through Mon: the biggest challenge remains determining the 
areal coverage of stratus (low clouds) and lake fog the next few 
nights. We simply tried to re-introduce low clouds in the areas 
that had coverage this morning... but modified slightly. The most 
persistent stratus should be along the highways 2 and 95 corridor 
in boundary and Bonner counties Idaho. Patchy low clouds were also 
added to Priest Lake, and also kept patchy fog for Lake Chelan and 
Lake Wenatchee. It's interesting that the NAM is producing light 
amnts of pcpn mainly Sat nt and sun nt across the cntrl part of 
the Columbia Basin. No other guidance is doing this. The NAM fcst 
soundings also show a sufficiently deep saturated sfc lyr (with a 
dry dendritic layer aloft) to produce snow grains for the above- 
mentioned nights. We did not put any pcpn in the fcst attm.Bz 

Monday night through Tuesday night: high pressure will continue to 
dominate over the inland northwest. Little air movement and large 
scale subsidence will result in stagnant conditions. There is a 
good chance that little will change in air quality across the 
region. Slightly higher dew point temperatures will result in a 
higher probability for fog or low stratus early next week. Best 
chances for fog will be in the mountain valleys and across the 
western portion of the basin. 

Wednesday through thursday: models show reasonable consistency in 
showing the ridge breaking down around this time. Energy pushing in 
off of the Pacific looks to split or weaken as it impinges upon 
the upper level ridge of higher pressure. This will assuredly 
result in light amounts of precip as lift will be weak, and models 
also show little in the way of moisture. The main impact to watch 
out for will be for the potential of a mixture of snow and freezing 
precip. Temperatures will likely remain around freezing as the 
first bit of moisture pushes in. With how weak the energy looks to 
be, it will likely do little to mix up the lower atmosphere. Weak 
easterly winds will result in better mixing potential for the 
southeast portion of the region. Where mixing will have a harder 
time occurring, and where mixed precip will be more likely, will 
be over the western basin and into the valleys of the east slopes 
of the northern Cascades and across the northern mountains. With 
that said, confidence is still too low to add a mention of 
freezing precip to the forecast, but best potential would be from 
the Wednesday morning through the Thursday morning portion of the 
extended forecast. /Svh 


18z tafs: strong high pressure will produce clear skies over the 
inland northwest for the next 24 to 36 hours. VFR conditions are 
expected at all airports this Thanksgiving Holiday. 


Preliminary point temps/pops... 
Spokane 15 30 18 32 17 32 / 0 0 0 0 0 0 
Coeur D'Alene 14 31 18 33 19 32 / 0 0 0 0 0 0 
Pullman 15 31 17 32 18 33 / 0 0 0 0 0 0 
Lewiston 18 33 20 33 22 33 / 0 0 0 0 0 0 
Colville 12 34 13 37 16 34 / 0 0 0 0 0 0 
Sandpoint 17 31 18 34 17 33 / 0 0 0 0 0 0 
Kellogg 14 32 13 34 18 33 / 0 0 0 0 0 0 
Moses Lake 14 32 17 33 18 33 / 0 0 0 0 0 0 
Wenatchee 20 33 19 33 21 34 / 0 0 0 0 0 0 
Omak 17 33 16 35 17 33 / 0 0 0 0 0 0 


Otx watches/warnings/advisories... 
Idaho...air stagnation advisory from 9 PM this evening to noon PST 
Monday for central Panhandle mountains-Coeur D'Alene area- 
Idaho Palouse-Lewis and southern Nez Perce counties- 
Lewiston area-northern Panhandle. 

Washington...air stagnation advisory from 9 PM this evening to noon PST 
Monday for east slopes northern Cascades-lower Garfield and 
Asotin counties-Moses Lake area-northeast Blue Mountains- 
northeast mountains-Okanogan Highlands-Okanogan Valley- 
Spokane area-upper Columbia Basin-Washington Palouse- 
Waterville Plateau-Wenatchee area. 



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