Snoqualmie, WA Weather Alerts

* WHAT...Hot conditions with temperatures in the mid 80s to mid 90s
expected. This will pose a moderate risk of heat-related illness.

* WHERE...Portions of northwest and west central Washington.

* WHEN...From 8 AM Thursday to 11 PM PDT Friday.

* IMPACTS...Heat will significantly increase the risk of
heat-related illnesses for those who are sensitive to heat,
especially those without effective cooling or adequate hydration.

* ADDITIONAL DETAILS...Localized areas of Major HeatRisk are
possible in Cascade Valleys.

* WHAT...Hot conditions with temperatures in the mid 80s to mid 90s
expected. This will pose a moderate risk of heat-related illness.

* WHERE...Portions of northwest and west central Washington.

* WHEN...From 8 AM Thursday to 11 PM PDT Friday.

* IMPACTS...Heat will significantly increase the risk of
heat-related illnesses for those who are sensitive to heat,
especially those without effective cooling or adequate hydration.

* WHAT...Hot conditions with afternoon temperatures up to 100
degrees and overnight lows in the 60s. This will pose a moderate
to major risk of heat-related illness.

* WHERE...Portions of northwest and west central Washington.

* WHEN...Until 10 PM PDT Tuesday.

* IMPACTS...Extreme heat will significantly increase the risk of
heat-related illnesses for much of the population, especially
those who are heat sensitive and those without effective cooling
or adequate hydration.

* ADDITIONAL DETAILS...Temperatures will gradually cool during the
middle and late portions of the week, but will remain well above
normal in the 80s for much of the lowlands.

* WHAT...Mixed precipitation. Additional snow accumulations of
up to one inch and ice accumulations of a light glaze.

* WHERE...East Puget Sound Lowlands from Snohomish County to
Pierce County, including Arlington, Gold Bar, Duvall,
Snoqualmie, Buckley, and Eatonville.

* WHEN...Until 10 AM PST this morning.

* IMPACTS...Plan on slippery road conditions.

Record-breaking cold temperatures are expected to spread across
western Washington this afternoon and tonight and continue into
at least early next week. The coldest temperatures and wind chills
are expected Friday through Sunday followed by a very slow
warming trend.

This cold snap will begin with rapidly falling temperatures
this afternoon through tonight and could result in flash freezing
of any wet surfaces including roadways. This could create rapidly
deteriorating travel/commute conditions.

By Friday morning, extremely cold air will be in place across
western Washington with overnight lows ranging from the single
digits in western Whatcom County to around 15-25 degrees across
most other lowland areas. Temperatures will likely cool further on
Saturday morning with most locations seeing overnight lows in the
teens.

These cold temperatures will combine with enhanced winds to result
in even colder wind chill values. Widespread wind chills of 15 to
5 degrees above zero are likely with even colder wind chills of
negative 5 to negative 25 degrees across western Whatcom County
where wind gusts of 40 to 55 mph are expected to peak tonight.

Please take precautions to ensure your safety over the coming
days. Slow down and leave plenty of space when driving as icy
conditions are likely to develop. Know the signs of hypothermia
and frostbite and don't forget to protect your pets, pipes, and
sensitive plants. If you or anyone you know needs to find shelter,
please visit wa211.org or call 2-1-1 during business hours to
find sheltering and humans service resources.

* WHAT...Southeast winds 25 to 35 mph with gusts up to 45 mph
expected, getting up to 55 mph near gaps in the terrain.

* WHERE...East Puget Sound Lowlands.

* WHEN...From 6 PM this evening to 1 PM PST Wednesday.

* IMPACTS...Gusty winds could blow around unsecured objects.
Tree limbs could be blown down and a few power outages may
result.

A frontal system will bring another round of widespread lowland rain
and mountain snow with snow levels rising to 5500 and 7000 feet.
Forecast rainfall totals are from 2-3 inches in the Cascades and the
Olympics. Combined with recent heavy rains that has rivers running
high and soils already saturated with little time to dry out, this
will lead to significant rises on streams and rivers. There is also
a low chance of exceeding flood stage on rivers in the outlook areas
of King, Thurston, Grays Harbor, and Lewis Counties.

Please monitor the latest river forecasts from the National Weather
Service for additional information.

Rainfall of 4 to 8 inches over the past week has increased soil
moisture to moderate levels across western Washington. Heavy
rainfall of 1 to 2 inches is expected through Sunday. This amount of
rain will put extra pressure on soil instability, leading to an
increased threat of landslides.

For more information about current conditions, visit
www.weather.gov/seattle, select Hydrology, and then scroll down
for the links to the landslide information pages.

For more information on landslides, visit the website for the
Washington State Department of Natural Resources landslide
geologic hazards at: http://bit.ly/2mtA3wn

A frontal system will bring another round of widespread lowland rain
and mountain snow with snow levels rising to between 6000 and 6500
feet. Though considerably weaker than the last event earlier this
week, forecast rainfall totals have increased today and are from 2-3
inches in the Cascades and 3-4 inches in the Olympics. Snow levels
are also forecast higher. Combined with recent heavy rains that has
rivers running high and soils already saturated with little time to
dry out, this will lead to significant rises on streams and rivers.
There is also a low chance of exceeding flood stage on river in the
outlook areas of King, Thurston, Grays Harbor, and Lewis Counties.

Please monitor the latest river forecasts from the National Weather
Service for additional information.

* WHAT...Flooding caused by excessive rainfall continues to be
possible.

* WHERE...Portions of northwest and west central Washington,
including the following counties, in northwest Washington,
Clallam, Grays Harbor, Island, Jefferson, Kitsap, Mason, San Juan,
Skagit and Whatcom. In west central Washington, King, Lewis,
Pierce, Snohomish and Thurston.

* WHEN...From Saturday evening through late Wednesday night.

* IMPACTS...Excessive runoff may result in flooding of rivers,
creeks, streams, and other low-lying and flood-prone locations.
Flooding may occur in poor drainage and urban areas. Extensive
street flooding and flooding of creeks and rivers are possible.

* ADDITIONAL DETAILS...
- Excessive rainfall from a long-duration atmospheric river
event. Total rainfall forecast has increased with total
liquid accumulation through Wednesday of next week ranging
from 3 to 7 inches over the lowlands to upwards of 10 to 12
inches over the Cascades and 10 to 15 inches over the
Olympics.
- http://www.weather.gov/safety/flood