* WHAT...Snow. Additional snow accumulations up to 10 inches above
4500 feet, and a 1 to 3 inches below 4500 feet. Ice accumulations
up to a light glaze.
* WHERE...East Slopes of the Oregon Cascades.
* WHEN...Until 10 AM PST Tuesday.
* IMPACTS...Periods of moderate to heavy snow will combine with low
visibilities to create difficult driving conditions.
Patchy dense fog has developed and will reduce visibilities to 1/2
mile or less across the Blue Mountain foothills through the early
morning hours. Portions of I-84, SR-11, SR-125 and US-395 may be
impacted.
Motorists are urged to use caution when traveling through these
areas due to localized low visibilities. If you encounter dense
fog, slow down and use low beam headlights.
Patchy dense fog has developed and will reduce visibilities to 1/2
mile or less across the Blue Mountain foothills through the early
morning hours. Portions of I-84, SR-11, SR-125 and US-395 may be
impacted.
Motorists are urged to use caution when traveling through these
areas due to localized low visibilities. If you encounter dense
fog, slow down and use low beam headlights.
Patchy dense fog will reduce visibilities to 1/2 mile or less
across the Blue Mountain foothills through the evening hours.
Portions of I-84, SR-11, SR-125 and US-395 may be impacted.
Motorists are urged to use caution when traveling through these
areas this evening due to localized areas of low visibilities. If
you encounter dense fog, slow down and use low beam headlights.
Patchy dense fog will reduce visibilities to 1/2 mile or less
across the Blue Mountain foothills through the evening hours.
Portions of I-84, SR-11, SR-125 and US-395 may be impacted.
Motorists are urged to use caution when traveling through these
areas this evening due to localized areas of low visibilities. If
you encounter dense fog, slow down and use low beam headlights.
* WHAT...Flooding caused by excessive rainfall is possible.
* WHERE...A portion of northwest Washington, including the following
county, Mason.
* WHEN...Through late Tuesday night.
* IMPACTS...Excessive runoff may result in flooding of rivers,
creeks, streams, and other low-lying and flood-prone locations.
Low-water crossings may be flooded.
* ADDITIONAL DETAILS...
- Expected rainfall of 3 to 5 inches with snow levels at 7000
to 8000 feet Tuesday and Wednesday could drive the Skokomish
River above flood stage Tuesday night.
- http://www.weather.gov/safety/flood
ESFSEW
An atmospheric river will impact the region Tuesday and Wednesday,
bringing potentially significant rainfall that could drive some
rivers in western Washington into flood stage.
There is still a fair amount of uncertainty regarding river flooding
mid-week, but the latest rainfall forecast shows 3 to 5 inches over
the Olympic Peninsula with snow levels as high as 7000 to 8000 feet.
The northern and central Cascades will also see heavy rainfall
during this period, with up to 4 inches of liquid forecast through
Wednesday.
The Skokomish River is currently forecast to enter moderate flood
stage by Wednesday, and other area rivers will continue to be
monitored. In addition, urban and small stream flooding will need to
be monitored as well due to potential heavier rain rates Tuesday
night into early Wednesday morning.
Forecast models show potential for additional precipitation entering
western Washington towards the end of the week, which could cause
additional river flooding impacts.
Please monitor the latest river forecasts from the National Weather
Service for additional information.
* WHAT...Mixed precipitation above 3000 feet. Additional snow
accumulations up to 6 inches and ice accumulations around a light
glaze.
* WHERE...South Washington Cascades.
* WHEN...Until 10 AM PST Tuesday.
* IMPACTS...Plan on slippery road conditions. The hazardous
conditions could impact the Tuesday morning commute.
* WHAT...Heavy wet snow above 4000 feet. Additional snow
accumulations 8 to 10 inches.
* WHERE...Northern and Central Oregon Cascades.
* WHEN...Until 10 AM PST Tuesday.
* IMPACTS...Travel could be very difficult. The hazardous conditions
could impact the Tuesday morning commute.
* ADDITIONAL DETAILS...Heaviest snow is expected tonight into early
Tuesday morning.
* WHAT...Mixed precipitation. Total snow accumulations 1 to 3 inches
and ice accumulations up to a light glaze.
* WHERE...Kittitas Valley and Yakima Valley.
* WHEN...From 10 PM this evening to 4 AM PST Wednesday.
* IMPACTS...Travel could be difficult due to periods of moderate to
heavy snow. The hazardous conditions could impact the Tuesday
morning and evening commutes.
* WHAT...Mixed precipitation. Total snow accumulations between 3 and
8 inches, and ice accumulations from a couple hundredths to two
tenths of an inch.
* WHERE...Upper and Lower Slopes of the Eastern Washington Cascades
Crest.
* WHEN...From 10 PM this evening to 4 AM PST Wednesday.
* IMPACTS...Travel could be difficult due to periods of moderate to
heavy snow and light freezing rain.
* WHAT...Mixed precipitation. Additional snow accumulations of 3 to
7 inches above 4000 feet, and a trace to 3 inches between 3500 and
4000 feet. Ice accumulations up to a light glaze.
* WHERE...In Oregon, Northern Blue Mountains of Oregon. In
Washington, Northwest Blue Mountains.
* WHEN...Until 4 PM PST Tuesday.
* IMPACTS...Travel could be difficult due to periods of moderate to
heavy snow.
* WHAT...Mixed precipitation. Additional snow accumulations of 3 to
7 inches above 4000 feet, and a trace to 3 inches between 3500 and
4000 feet. Ice accumulations up to a light glaze.
* WHERE...In Oregon, Northern Blue Mountains of Oregon. In
Washington, Northwest Blue Mountains.
* WHEN...Until 4 PM PST Tuesday.
* IMPACTS...Travel could be difficult due to periods of moderate to
heavy snow.
* WHAT...Snow above 4000 Feet. Additional snow accumulations of 2 to
5 inches.
* WHERE...Southern Blue Mountains of Oregon.
* WHEN...Until 4 PM PST Tuesday.
* IMPACTS...Travel could be difficult due to periods of moderate to
heavy snow.
* WHAT...Snow. Additional snow accumulations up to 10 inches above
4500 feet, and a trace to 3 inches below 4500 feet. Ice
accumulations up to a light glaze.
* WHERE...East Slopes of the Oregon Cascades.
* WHEN...Until 10 AM PST Tuesday.
* IMPACTS...Periods of moderate to heavy snow will combine with low
visibilities to create difficult driving conditions.
* WHAT...Snow. Additional snow accumulations of 2 to 5 inches above
4000 feet.
* WHERE...Ochoco-John Day Highlands.
* WHEN...Until 10 AM PST Tuesday.
* IMPACTS...Periods of moderate and heavy snow will combine with low
visibilities to create difficult driving conditions.
...The National Weather Service in Portland OR has issued a Flood
Watch for the following rivers in Washington...
Grays River at Covered Bridge near Rosburg affecting Wahkiakum
Lowlands zone.
* WHAT...Flooding is possible. There is a 50% chance the Grays River
reaches minor flood stage of 28.5 feet.
* WHERE...Grays River at Covered Bridge near Rosburg.
* WHEN...From Tuesday morning to Wednesday morning.
* IMPACTS...Above 28.5 feet, expect some flooding of roads along and
near the Grays River, especially downstream of the gage, including
roadway approaches to the Altoona Bridge over the Grays, and
portions of Covered Bridge Road, Barr-Durrah Road, and Loop Road
near Rosburg and Hwy 4.
* ADDITIONAL DETAILS...
- At 1:15 PM PST Monday the stage was 24.1 feet.
- Forecast...Flood stage may be reached based on the latest
forecast information.
- Flood stage is 28.5 feet.
- http://www.weather.gov/safety/flood
* WHAT...Mixed precipitation expected. Total snow accumulations
between 4 and 8 inches and ice accumulations between 0.10 and 0.20
inches.
* WHERE...Stevens Pass, Plain, Leavenworth, Holden Village, and
Stehekin.
* WHEN...From 4 AM Tuesday to 4 AM PST Wednesday.
* IMPACTS...Expect winter travel conditions. Walking surfaces
becoming slick.
* ADDITIONAL DETAILS...Snow will switch over to freezing rain
Tuesday evening.
* WHAT...Mixed precipitation expected. Total snow accumulations 2 to
6 inches and ice accumulations around a light glaze.
* WHERE...Number 2 Canyon, Mansfield, Pangborn Airport, Number 1
Canyon, Entiat, Cashmere, Badger Mountain Road, Chelan,
Waterville, and Wenatchee.
* WHEN...From 4 AM Tuesday to 4 AM PST Wednesday.
* IMPACTS...Expect winter travel conditions for the Tuesday morning
and evening commute.