... Dense fog advisory in effect until 10 am PST this morning...
... Air stagnation advisory remains in effect until noon PST Monday...
The National Weather Service in Seattle has issued a dense fog
advisory... which is in effect until 10 am PST this morning. An air
stagnation advisory remains in effect until noon on Monday.
* Visibility... areas of visibility one-quarter mile or less this
* Air quality... cold air trapped near the surface by warmer air
aloft will allow pollutants such as wood smoke and Carbon
monoxide to continue increasing through Monday morning.
* Timing... dense fog will start to thin out later this morning.
Air stagnation will start to improve on Monday.
* Impacts... due to local dense fog and freezing
temperatures... slow down and watch for other vehicles and
pedestrians. Sub-freezing temperatures with the fog will make
some roads frosty and slippery this morning. The degraded air
quality has resulted in some burn bans. Those with respiratory
illnesses should consider limiting outdoor activities.
An air stagnation advisory is based on weather conditions. It is not
an air pollution advisory or forecast. Air pollution advisories and
forecasts are issued by air quality agencies.
Check with your local clean air agency for any restrictions... such
as burn bans... in your area.
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. With below
freezing temperatures and dense fog... frost on roadways will set
up slippery driving conditions early this morning.
... Record low temperature set at Quillayute WA Airport...
A record low temperature of 21 degrees was set at Quillayute WA
Airport yesterday. This ties the old record of 21 set in 2006.