ESFPQR
An unseasonably strong and moist low pressure system will spread
moderate to locally heavy rain across southwest Washington and
northwest Oregon this morning, continuing through tonight and
possibly early Monday morning.
Rainfall rates are the primary concern with this event. Several
hours with rainfall rates of one quarter to one half inch per hour
are expected for the Coast Range, Cascades, and locally along the
coast later today through this evening. Rainfall rates of this
magnitude, especially when sustained for several hours, can cause
flooding of creeks and small streams. Areas of poor drainage will
also lead to standing water on some area roads. Flooding is not
anticipated on mainstem rivers, but significant rises are likely.
Rain is expected to taper to showers Monday morning, dramatically
decreasing the rainfall rates and any related impacts throughout the
day Monday.
Monitor weather.gov/portland for the latest updates and any watches,
warnings, or advisories that may be issued for this event.
Two atmospheric rivers are expected to arrive today through
Tuesday. Heavy rain is expected this morning into Monday morning
with additional rainfall later Monday through Tuesday. Snow levels
will be high. This combination could push rivers in the watch area
close to flood stage beginning Monday. Heavy rain may also lead to
localized flooding in urban areas.
* 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, Mason
and Skagit. In west central Washington, King, Lewis, Pierce and
Snohomish.
* WHEN...Through Wednesday morning.
* IMPACTS...Excessive runoff may result in flooding of rivers,
creeks, streams, and other low-lying and flood-prone locations.
Creeks and streams may rise out of their banks. Flooding may occur
in poor drainage and urban areas.
* ADDITIONAL DETAILS...
- http://www.weather.gov/safety/flood
* WHAT...Southwest winds 25 to 35 mph with gusts up to 55 mph
expected.
* WHERE...Potlatch, Tekoa, Colfax, Lapwai, Oakesdale, Pullman,
Pomeroy, Moscow, Lewiston Grade, Alpowa Summit, Gifford, Peck, La
Crosse, Genesee, Uniontown, Plummer, Clarkston, Rosalia, Lewiston,
and Culdesac.
* WHEN...From 8 AM to 11 PM PDT Monday.
* IMPACTS...Gusty winds will blow around unsecured objects. Trees or
tree limbs could be blown down and scattered power outages may
result.
* WHAT...Southwest winds 20 to 30 mph with gusts up to 50 mph
expected.
* WHERE...Wallace, Cheney, Odessa, Pinehurst, Harrington, Wenatchee,
Craigmont, Coeur d'Alene, Cashmere, Number 1 Canyon, Airway
Heights, Rockford, Hayden, Number 2 Canyon, Waterville, Kamiah,
Moses Lake, Kellogg, Fernwood, Creston, Davenport, Grand Coulee,
Othello, Mansfield, Worley, Badger Mountain Road, Coulee City,
Mullan, Quincy, Ritzville, Ephrata, Wilbur, Fairfield, Nezperce,
Spokane Valley, Chelan, Post Falls, Osburn, Entiat, Pangborn
Airport, Winchester, Downtown Spokane, Dobson Pass, St. Maries,
Fourth Of July Pass, Soldiers Meadow Road, and Lookout Pass.
* WHEN...From 8 AM to 11 PM PDT Monday.
* IMPACTS...Gusty winds will blow around unsecured objects. Trees or
tree limbs could be blown down and scattered power outages may
result.
* ADDITIONAL DETAILS...Peak wind gusts will occur in the afternoon
with cold front passage. Showers and thunderstorms may mix down
stronger winds with isolated wind gusts up to 55 mph.
* WHAT...West winds 25 to 35 mph with gusts up to 55 mph expected.
* WHERE...Foothills of the Blue Mountains of Oregon and Washington,
Eastern Columbia River Gorge of Oregon and Washington, Lower
Columbia Basin of Oregon and Washington, Kittitas Valley, Yakima
Valley, and Simcoe Highlands.
* WHEN...From 8 AM to 11 PM PDT Monday.
* IMPACTS...Gusty winds will blow around unsecured objects. Tree
limbs could be blown down and a few power outages may result.
ESFPDT
Synopsis: An atmospheric river will bring abundant moisture to the
region with an incoming system Sunday through Monday. Rainfall
amounts of 1 to 2 inches are expected along the Oregon and
Washington Cascade crest and in the higher mountains of northeast
Oregon and southeast Washington. These amounts may be increased
locally by 1 to 2 inches of snow melt from what remains of the high
mountain snowpack.
Where: The East Slopes of the Washington and Oregon Cascades, The
Northern and Southern Blue Mountains, The Blue Mountain Foothills of
Washington and Oregon, Wallowa County and the Grande Ronde Valley.
When: Rain will arrive along the Cascades early Sunday morning and
in the eastern mountains late Sunday morning and afternoon. Rain
will taper off Monday afternoon and evening.
What: The precipitation and possible snow melt will lead to rises on
area creeks, streams and rivers. Rivers are low enough that only the
Naches River at Cliffdell and the Naches River at Naches are
expected to reach bankfull Monday and only by a few inches at those
locations. However, with the heavier periods of rain rapid rises
will be possible on smaller streams and creeks, especially in
Wallowa County and this is the main concern for the next couple of
days.
An update will be provided Sunday morning.
Two atmospheric rivers are expected to arrive Sunday through
Tuesday. Heavy rain is expected Sunday morning into Monday with
additional rainfall through Tuesday. Snow levels will be high. This
combination could push rivers in the watch area close to flood stage
beginning on Monday. Heavy rain may also lead to flooding in urban
areas.
* WHAT...Flooding caused by excessive rainfall continues to be
possible.
* WHERE...A portion of west central Washington, including the
following county, Lewis.
* WHEN...From late tonight through Wednesday morning.
* IMPACTS...Excessive runoff may result in flooding of rivers,
creeks, streams, and other low-lying and flood-prone locations.
Creeks and streams may rise out of their banks. Flooding may occur
in poor drainage and urban areas.
* ADDITIONAL DETAILS...
- http://www.weather.gov/safety/flood
Two atmospheric rivers are expected to arrive Sunday through
Tuesday. Heavy rain is expected Sunday morning into Monday with
additional rainfall through Tuesday. Snow levels will be high. This
combination could push rivers in the watch area close to flood stage
beginning on Monday. Heavy rain may also lead to flooding in urban
areas.
* 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, Mason
and Skagit. In west central Washington, King, Pierce and Snohomish.
* WHEN...From late tonight through Wednesday morning.
* IMPACTS...Excessive runoff may result in flooding of rivers,
creeks, streams, and other low-lying and flood-prone locations.
Creeks and streams may rise out of their banks. Flooding may occur
in poor drainage and urban areas.
* ADDITIONAL DETAILS...
- http://www.weather.gov/safety/flood
ESFOTX
Where: Chelan and Pend Oreille counties in Washington. Boundary,
Bonner, Kootenai, Shoshone, Benewah, Latah, Lewis and Nez Perce
counties in Idaho.
What: Moderate to heavy rainfall will lead to rises on area creeks,
streams, rivers, and lakes. Rainfall totals of 1 to 2 inches at the
crest of the Cascades and mountains of northeast Washington and the
Idaho Panhandle is currently forecast.
An Areal Flood Watch has been issued for Lewis and Shoshone Counties
in Idaho. Moderate to heavy rainfall combined with rapid snowmelt
over the Clearwater Mountains may cause creeks and streams in
eastern Lewis County and southern Shoshone County to rise out of
their banks.
When: Beginning late Sunday morning along the crest of the Cascades
and moving into eastern Washington and the Idaho Panhandle Sunday
afternoon. Heaviest rainfall will occur between Sunday evening and
Monday morning.
This will be the last Hydrologic Outlook update.
Continue to monitor the latest forecasts and river forecasts from
the National Weather Service at weather.gov/Spokane or
water.noaa.gov/wfo/otx.
Two atmospheric rivers are expected to arrive Sunday through
Tuesday. Heavy rain is expected Sunday night into Monday morning
with additional rainfall through Tuesday. Snow levels will be high.
This combination could push rivers in the watch area close to flood
stage beginning Monday.
* 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, Mason
and Skagit. In west central Washington, King, Pierce and Snohomish.
* WHEN...From Sunday morning through Wednesday morning.
* IMPACTS...Excessive runoff may result in flooding of rivers,
creeks, streams, and other low-lying and flood-prone locations.
Creeks and streams may rise out of their banks. Flooding may occur
in poor drainage and urban areas.
* ADDITIONAL DETAILS...
- http://www.weather.gov/safety/flood
Two atmospheric rivers are expected to arrive beginning Sunday
evening and lasting into Wednesday morning. Heavy rain is expected
Sunday night into Monday morning for rises on area rivers and local
creeks, some into action stage.
* WHAT...Flooding caused by excessive rainfall is possible.
* WHERE...Portions of northwest and west central Washington,
including the following counties, in northwest Washington, Mason
and Skagit. In west central Washington, King, Pierce and Snohomish.
* WHEN...From Sunday morning through Wednesday morning.
* IMPACTS...Excessive runoff may result in flooding of rivers,
creeks, streams, and other low-lying and flood-prone locations.
Creeks and streams may rise out of their banks. Flooding may occur
in poor drainage and urban areas.
* ADDITIONAL DETAILS...
- http://www.weather.gov/safety/flood
ESFOTX
Where: Chelan and Pend Oreille counties in Washington. Boundary,
Bonner, Kootenai, Shoshone, Benewah, Latah, Lewis and Nez Perce
counties in Idaho.
When: Beginning Sunday evening along the crest of the Cascades and
moving into eastern Washington and the Idaho Panhandle Monday
morning.
What: Moderate rainfall leading to rises on area creeks, streams,
rivers and lakes. Monday morning rainfall could be locally heavy,
especially across Idaho. There is low confidence of the potential
for isolated rock or mud slides. The rain will largely be beneficial
to the parched region. Rainfall totals of 1 to 2 inches at the crest
of the Cascades and mountains of northeast Washington and the Idaho
Panhandle is currently forecast.
The next update will be provided Saturday afternoon.
Continue to monitor the latest forecasts and river forecasts from
the National Weather Service through the weekend.
ESFOTX
Where: Chelan and Pend Oreille counties in Washington. Boundary,
Bonner, Kootenai, Shoshone, Benewah, Latah, Lewis and Nez Perce
counties in Idaho.
When: Beginning Sunday evening along the crest of the Cascades and
moving into eastern Washington and the Idaho Panhandle Monday
morning.
What: Moderate rainfall leading to rises on area creeks, streams,
rivers and lakes. Monday morning rainfall could be locally heavy,
especially across Idaho. There is low confidence of the potential
for isolated rock or mud slides. The rain will largely be beneficial
to the parched region. Rainfall totals of 1 to 2 inches at the crest
of the Cascades and mountains of northeast Washington and the Idaho
Panhandle is currently forecast.
The next update will be provided Friday afternoon.
* WHAT...Temperatures as low as 32 will result in frost formation.
* WHERE...Oakesdale, Twisp, Winthrop, Wallace, Bonners Ferry,
Sandpoint, Rosalia, Colfax, Creston, Coulee City, Conconully,
Fernwood, Plummer, Schweitzer Mountain Road, Loup Loup Pass,
Moscow, Methow, Pullman, Athol, Harrington, Dobson Pass,
Uniontown, Mazama, Pinehurst, Osburn, Odessa, Potlatch, La Crosse,
Fourth Of July Pass, Clark Fork, Kellogg, Eastport, Genesee,
Ritzville, Lookout Pass, Wilbur, St. Maries, Grand Coulee, Tekoa,
Priest River, and Mullan.
* WHEN...Until 8 AM PDT this morning.
* IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive
outdoor plants may be killed if left uncovered.
* WHAT...Sub-freezing temperatures as low as 30 possible.
* WHERE...Republic, Highway 20 Wauconda Summit, Inchelium, Tiger,
Metaline Falls, Chewelah, Wauconda, Sherman Pass,
Springdale-Hunters Road, Deer Park, Newport, Chesaw Road, Ione,
Orin-Rice Road, Metaline, Northport, Colville, Kettle Falls,
Flowery Trail Road, Fruitland, and Boulder Creek Road.
* WHEN...Until 8 AM PDT this morning.
* IMPACTS...Frost and freeze conditions could kill crops and other
sensitive vegetation.
* WHAT...Temperatures as low as 32 will result in frost formation.
* WHERE...Davenport, Downtown Spokane, Rockford, Spokane Valley,
Cheney, Fairfield, and Airway Heights.
* WHEN...Until 8 AM PDT this morning.
* IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive
outdoor plants may be killed if left uncovered.
ESFOTX
Where: Chelan and Pend Oreille counties in Washington. Boundary,
Bonner, Kootenai, Shoshone, Benewah, Latah, Lewis and Nez Perce
counties in Idaho.
When: Beginning Sunday evening along the crest of the Cascades and
moving into eastern Washington and the Idaho Panhandle Monday
morning.
What: Moderate rainfall leading to rises on area creeks, streams,
rivers and lakes. Monday morning rainfall could be locally heavy,
especially across Idaho. There is low confidence of the potential
for isolated rock or mud slides. The rain will largely be beneficial
to the parched region. Rainfall totals of 1 to 2 inches at the crest
of the Cascades and mountains of northeast Washington and the Idaho
Panhandle is currently forecast.
The next update will be provided Friday afternoon.
* WHAT...Temperatures as low as 31 will result in frost formation.
* WHERE...Odessa, Fernwood, Schweitzer Mountain Road, Clark Fork,
Rosalia, Fairfield, Kellogg, Mullan, Dobson Pass, Potlatch, Fourth
Of July Pass, Pullman, St. Maries, Cheney, Oakesdale, Priest
River, Wallace, Loup Loup Pass, Eastport, Downtown Spokane,
Pinehurst, Osburn, Moscow, Creston, Grand Coulee, Lookout Pass,
Ritzville, Davenport, Mazama, Twisp, Wilbur, Rockford, Harrington,
Coulee City, Plummer, Sandpoint, Colfax, Uniontown, Athol,
Winthrop, La Crosse, Conconully, Genesee, Tekoa, Methow, Airway
Heights, Bonners Ferry, and Spokane Valley.
* WHEN...Until 8 AM PDT Friday.
* IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive
outdoor plants may be killed if left uncovered.
ESFSEW
A late season atmospheric river will bring moderate to heavy
precipitation from Sunday afternoon through Tuesday across all of
western Washington. Heavy rainfall rates are possible over the
southwest Olympics, and the Cascades. Total rainfall amounts will
range from 1 to 2 inches in the lowlands, and 2 to 4 inches in the
mountains. Snow levels above 5000 feet will result in most
precipitation falling as rain. This will result in rivers running
unusually high, with the Skagit, Snohomish, Skykomish, White, and
Skokomish Rivers potentially over action stage. The Snoqualmie River
potentially will reach minor flood stage. This may impact any use of
the river flood planes that are normally dry this time of year.
Rivers will crest sometime between Sunday and Tuesday.
The next update will be provided Friday afternoon.
Please monitor the latest river forecasts from the National Weather
Service for additional information.
