SeaTac, WA Severe Weather Alertstar_ratehome

...FLOOD WARNING REMAINS IN EFFECT UNTIL FURTHER NOTICE...

* WHAT...Minor flooding is occurring and minor flooding is forecast.

* WHERE...White River at R Street Bridge.

* WHEN...Until further notice.

* ADDITIONAL DETAILS...
- At 5:45 AM PST Friday the flow was 8,300.0 cfs.
- Flood flow is 7,500.0 cfs.
- Recent Activity...The maximum river flow in the 24 hours
ending at 5:45 AM PST Friday was 10,000.0 cfs.
- Forecast...The river is expected to rise to 8,558.3 cfs late
this morning. Additional rises are possible thereafter.
- Flood History...This crest compares to a previous crest of
8,080.0 cfs on 02/06/2020.
- http://www.weather.gov/safety/flood

&&

...FLOOD WARNING NOW IN EFFECT UNTIL SUNDAY MORNING...

* WHAT...Major flooding is occurring and major flooding is forecast.
This approaches the flood of record.

* WHERE...Cedar River near Landsburg.

* WHEN...Until Sunday morning.

* IMPACTS...At 7.5 feet, the Cedar River will cause severe flooding
from Landsburg downstream through Maplewood. Deep and swift flood
waters will inundate many roads and some residential areas,
especially in Maple Valley.  Flooding will occur all along the
river including headwaters, tributaries, and other streams within
and near the Cedar River Basin.  A stage of 7.5 feet on the Cedar
River corresponds to a phase 4 flood in the King County flood
system.

* ADDITIONAL DETAILS...
- At 6:15 AM PST Friday the stage was 8.5 feet.
- Flood stage is 5.7 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 6:15 AM PST Friday was 10.0 feet.
- Forecast...The river is expected to fall below flood stage
late tomorrow evening and continue falling to 4.9 feet early
Monday morning.
- Flood History...This crest compares to a previous crest of
8.5 feet on 12/04/1975.
- http://www.weather.gov/safety/flood

&&

...FLOOD WARNING NOW IN EFFECT UNTIL SUNDAY EVENING...

* WHAT...Major flooding is occurring and major flooding is forecast.
This approaches the flood of record.

* WHERE...Cedar River at Renton.

* WHEN...Until Sunday evening.

* IMPACTS...At 16.0 feet, the Cedar River will cause major flooding
in Renton, especially at the Renton Airport. Flooding will occur
all along the river including headwaters, tributaries, and other
streams within and near the Cedar River Basin.

* ADDITIONAL DETAILS...
- At 6:15 AM PST Friday the stage was 16.5 feet.
- Flood stage is 13.0 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 6:15 AM PST Friday was 18.2 feet.
- Forecast...The river is expected to fall below flood stage
late Sunday morning and continue falling to 12.5 feet early
Monday morning.
- Flood History...This crest compares to a previous crest of
16.3 feet on 01/08/2009.
- http://www.weather.gov/safety/flood

&&

...FLOOD WARNING REMAINS IN EFFECT UNTIL FURTHER NOTICE...

* WHAT...Minor flooding is occurring and moderate flooding is
forecast.

* WHERE...Green River near Auburn.

* WHEN...Until further notice.

* IMPACTS...At 12,000.0 cfs, the Green River will inundate low areas
from the middle Green River valley downstream to Auburn...with
water over several roads including SE Green Valley Rd and West
Valley Rd.  Levees from Auburn down through Tukwilla may exhibit
seeapage and may weaken due to saturation.  A flow of 12000 cfs on
the Green River corresponds to a phase 4 flood in the King County
flood system.

* ADDITIONAL DETAILS...
- At 5:45 AM PST Friday the flow was 9,390.0 cfs.
- Flood flow is 9,000.0 cfs.
- Recent Activity...The maximum river flow in the 24 hours
ending at 5:45 AM PST Friday was 11,900.0 cfs.
- Forecast...The river is expected to rise to a crest of
12,140.0 cfs late tonight.
- Flood History...This crest compares to a previous crest of
12,100.0 cfs on 12/07/1975.
- http://www.weather.gov/safety/flood

&&

...HEAVY RAINFALL THIS WEEK HAS LEAD TO AN INCREASED THREAT OF
LANDSLIDES IN WESTERN WASHINGTON...

Rainfall of 2 to 12 inches over the past several days has increased
soil moisture to very high levels across western Washington. This
amount of rain will put extra pressure on soil instability, leading
to an increased threat of landslides and debris flows, especially
from recent burned areas.

Numerous landslides have already been reported in the western
Cascades in western Washington. More landslides are possible.

Areas most susceptible to landslides debris flows under these
conditions are steep coastal bluffs, other steep hillsides or
road cuts, and recent burned areas. A diminishing threat of
landslides and debris flows will continue for several days after
the rain ends.

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

...FLOOD WARNING NOW IN EFFECT UNTIL THIS MORNING...

* WHAT...Minor flooding is occurring.

* WHERE...Snoqualmie River near Snoqualmie Falls.

* WHEN...Until this morning.

* IMPACTS...At 20,000.0 cfs, the Snoqualmie River will cause
widespread flooding of pasture lands and roads along the river
from the town of Snoqualmie downstream through Fall City. Roads
that may become flooded include Fall City-Carnation...Tolt Hill...
and Novelty Flats Roads. This river level on the Snoqualmie
corresponds roughly to a phase 3 flood in the King County flood
system.

* ADDITIONAL DETAILS...
- At 11:15 PM PST Thursday the flow was 20,600.0 cfs.
- Flood flow is 20,000.0 cfs.
- Recent Activity...The maximum river flow in the 24 hours
ending at 11:15 PM PST Thursday was 60,200.0 cfs.
- Forecast...The river is expected to fall to 4,900.6 cfs late
Sunday evening.
- Flood History...This crest compares to a previous crest of
20,400.0 cfs on 01/24/2015.
- http://www.weather.gov/safety/flood

&&

...FLOOD WARNING NOW IN EFFECT UNTIL LATE TOMORROW MORNING...

* WHAT...Major flooding is occurring and major flooding is forecast.

* WHERE...Snoqualmie River near Carnation.

* WHEN...Until late tomorrow morning.

* IMPACTS...At 58.0 feet, the Snoqualmie River will cause major
flooding from Fall City downstream through Carnation and Duvall.
Deep and swift flood waters will inundate many farms...residential
areas...and roads.  Flooding will occur all along the river
including headwaters...tributaries...and other streams within and
near the Snoqualmie River Basin.

* ADDITIONAL DETAILS...
- At 11:15 PM PST Thursday the stage was 59.6 feet.
- Flood stage is 54.0 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 11:15 PM PST Thursday was 60.5 feet.
- Forecast...The river is expected to fall below flood stage
late this evening and continue falling to 48.1 feet late
Sunday evening.
- Flood History...This crest compares to a previous crest of
59.5 feet on 11/10/1990.
- http://www.weather.gov/safety/flood

&&

...FLOOD WATCH REMAINS IN EFFECT THROUGH FRIDAY AFTERNOON...

* 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...Through Friday afternoon.

* IMPACTS...Area creeks and streams are running high and could flood
with more heavy rain.

* ADDITIONAL DETAILS...
- Rain continues tonight into Friday but the heaviest rain is
over.
- http://www.weather.gov/safety/flood

PRECAUTIONARY/PREPAREDNESS ACTIONS...

You should monitor later forecasts and be alert for possible Flood
Warnings. Those living in areas prone to flooding should be prepared
to take action should flooding develop.

&&