Weather Alerts for N. Coast OR

Issued by the National Weather Service

High Wind Warning  HIGH WIND WARNING   High Wind Warning
N. COAST OR

Areas Affected:
Clatsop County Coast - Tillamook County Coast - South Washington Coast
Effective: Thu, 12/18 1:04pm Updated: Thu, 12/18 3:45pm Urgency: Expected
Expires: Thu, 12/18 7:00pm Severity:  Severe  Certainty: Likely

 
Details:
* WHAT...Southwest winds 20 to 30 mph with gusts up to 60 mph.

* WHERE...Clatsop County and Tillamook County Coast, and South
Washington Coast.

* WHEN...Until 7 PM PST this evening.

* IMPACTS...Damaging winds will blow down trees and power lines.
Widespread power outages are expected. Travel will be difficult,
especially for high profile vehicles.

Information:
Prepare for potential power outages. If you have a gas-powered
generator, ensure you have enough fuel. Ensure you have batteries,
flashlights, and a way to maintain a safe body temperature if you
were to lose heating and cooling.

Winds this strong can make driving difficult, especially for high
profile vehicles. Use extra caution.

Monitor the latest forecasts and warnings for updates.

High Wind Warning  HIGH WIND WARNING   High Wind Warning
N. COAST OR

Areas Affected:
Central Coast of Oregon - Central Oregon Coast Range
Effective: Thu, 12/18 1:04pm Updated: Thu, 12/18 3:45pm Urgency: Expected
Expires: Thu, 12/18 7:00pm Severity:  Severe  Certainty: Likely

 
Details:
* WHAT...Southwest winds 20 to 30 mph with gusts up to 60 mph.

* WHERE...Central Coast of Oregon and Central Oregon Coast Range.

* WHEN...Until 7 PM PST this evening.

* IMPACTS...Damaging winds will blow down trees and power lines.
Widespread power outages are expected. Travel will be difficult,
especially for high profile vehicles.

Information:
Prepare for potential power outages. If you have a gas-powered
generator, ensure you have enough fuel. Ensure you have batteries,
flashlights, and a way to maintain a safe body temperature if you
were to lose heating and cooling.

Winds this strong can make driving difficult, especially for high
profile vehicles. Use extra caution.

Monitor the latest forecasts and warnings for updates.

Flood Warning  FLOOD WARNING   Flood Warning
N. COAST OR

Areas Affected:
Clatsop, OR - Tillamook, OR
Effective: Thu, 12/18 10:30am Updated: Thu, 12/18 3:45pm Urgency: Expected
Expires: Thu, 12/18 10:30pm Severity:  Severe  Certainty: Likely

 
Details:
...The National Weather Service in Portland OR has issued a Flood
Warning for the following rivers in Oregon...Washington...

Nehalem River near Foss affecting Tillamook and Clatsop Counties.

Grays River at Covered Bridge near Rosburg affecting Wahkiakum
County.

...Forecast flooding changed from Minor to Moderate severity and
increased in duration for the following rivers in Oregon...

Wilson River near Tillamook affecting Tillamook County.

* WHAT...Moderate flooding is forecast.

* WHERE...Nehalem River near Foss.

* WHEN...Until early Friday afternoon.

* IMPACTS...Above 20.0 feet, flooding of some buildings in the town
of Nehalem begins, with the situation worsening during the high
tide. Also expect widespread low land flooding and numerous
flooded rural roads from the Foss gauging station downstream to
Nehalem.

* ADDITIONAL DETAILS...
- At 9:15 AM PST Thursday the stage was 11.4 feet.
- Bankfull stage is 13.0 feet.
- Forecast...The river will rise above flood stage this
afternoon and crest around 21.0 feet late this evening. It
will then fall below flood stage Friday morning.
- Flood stage is 15.0 feet.
- http://www.weather.gov/safety/flood

Information:
Be especially cautious at night when it is harder to recognize the
dangers of flooding.

Motorists should not attempt to drive around barricades or drive
through flooded areas.

Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.

Additional information is available at www.weather.gov.

The next statement will be issued this evening at 1030 PM PST.

Flood Warning  FLOOD WARNING   Flood Warning
N. COAST OR

Areas Affected:
Tillamook, OR
Effective: Thu, 12/18 10:30am Updated: Thu, 12/18 3:45pm Urgency: Expected
Expires: Thu, 12/18 10:30pm Severity:  Severe  Certainty: Likely

 
Details:
...The National Weather Service in Portland OR has issued a Flood
Warning for the following rivers in Oregon...Washington...

Nehalem River near Foss affecting Tillamook and Clatsop Counties.

Grays River at Covered Bridge near Rosburg affecting Wahkiakum
County.

...Forecast flooding changed from Minor to Moderate severity and
increased in duration for the following rivers in Oregon...

Wilson River near Tillamook affecting Tillamook County.

* WHAT...Moderate flooding is forecast.

* WHERE...Wilson River near Tillamook.

* WHEN...Until Friday morning.

* IMPACTS...Above 19.0 feet, expect widespread flooding in and near
Tillamook, from the Hwy 6 bridge over the Wilson downstream to Hwy
101 and local roads west of Hwy 101. Flooding of the Wilson River
RV park east of Tillamook is likely. Hwy 101 through the northern
portion of Tillamook has historically been closed at this and
higher stages. The worst of the flooding can be expected during
high tides.

* ADDITIONAL DETAILS...
- At 9:30 AM PST Thursday the stage was 7.9 feet.
- Bankfull stage is 10.5 feet.
- Forecast...The river will rise above flood stage this
afternoon and crest around 18.6 feet this evening. It will
then fall below flood stage overnight.
- Flood stage is 12.0 feet.
- http://www.weather.gov/safety/flood

Information:
Be especially cautious at night when it is harder to recognize the
dangers of flooding.

Motorists should not attempt to drive around barricades or drive
through flooded areas.

Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.

Additional information is available at www.weather.gov.

The next statement will be issued this evening at 1030 PM PST.

Flood Warning  FLOOD WARNING   Flood Warning
N. COAST OR

Areas Affected:
Tillamook, OR
Effective: Thu, 12/18 10:30am Updated: Thu, 12/18 3:45pm Urgency: Immediate
Expires: Thu, 12/18 10:30pm Severity:  Severe  Certainty: Observed

 
Details:
...The Flood Warning continues for the following rivers in
Washington...Oregon...

Cowlitz River at Kelso affecting Cowlitz County.

Johnson Creek at Sycamore affecting Multnomah and Clackamas
Counties.

Clackamas River at Estacada affecting Clackamas County.

Clackamas River near Oregon City affecting Clackamas County.

Sandy River near Bull Run affecting Multnomah and Clackamas
Counties.

Hood River Near Hood River affecting Hood River County.

Siuslaw River near Mapleton affecting Lane County.

Molalla River near Canby affecting Clackamas County.

Marys River near Philomath affecting Benton County.

Pudding River at Aurora affecting Marion and Clackamas Counties.

Luckiamute River near Suver affecting Polk and Benton Counties.

S Yamhill River at McMinnville affecting Yamhill County.

...The Flood Warning is extended for the following rivers in
Oregon...

Siletz River at Siletz affecting Lincoln County.

Trask River near Tillamook affecting Tillamook County.

* WHAT...Minor flooding is forecast.

* WHERE...Trask River near Tillamook.

* WHEN...From this afternoon to Friday morning.

* IMPACTS...Above 19.0 feet, expect flooding along the lower Trask
River. Dairy farms, buildings, and some residences adjacent to the
Trask in the vicinity of Hwy 101 will be flooded.

* ADDITIONAL DETAILS...
- At 9:00 AM PST Thursday the stage was 11.3 feet.
- Bankfull stage is 15.0 feet.
- Forecast...The river will rise above flood stage this
afternoon, and crest around 18.3 feet this evening. It will
then fall below flood stage overnight.
- Flood stage is 16.5 feet.
- http://www.weather.gov/safety/flood

Information:
Be especially cautious at night when it is harder to recognize the
dangers of flooding.

Motorists should not attempt to drive around barricades or drive
through flooded areas.

Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.

Additional information is available at www.weather.gov.

The next statement will be issued this evening at 1030 PM PST.

Flood Warning  FLOOD WARNING   Flood Warning
N. COAST OR

Areas Affected:
Lincoln, OR
Effective: Thu, 12/18 10:30am Updated: Thu, 12/18 3:45pm Urgency: Immediate
Expires: Thu, 12/18 10:30pm Severity:  Severe  Certainty: Observed

 
Details:
...The Flood Warning continues for the following rivers in
Washington...Oregon...

Cowlitz River at Kelso affecting Cowlitz County.

Johnson Creek at Sycamore affecting Multnomah and Clackamas
Counties.

Clackamas River at Estacada affecting Clackamas County.

Clackamas River near Oregon City affecting Clackamas County.

Sandy River near Bull Run affecting Multnomah and Clackamas
Counties.

Hood River Near Hood River affecting Hood River County.

Siuslaw River near Mapleton affecting Lane County.

Molalla River near Canby affecting Clackamas County.

Marys River near Philomath affecting Benton County.

Pudding River at Aurora affecting Marion and Clackamas Counties.

Luckiamute River near Suver affecting Polk and Benton Counties.

S Yamhill River at McMinnville affecting Yamhill County.

...The Flood Warning is extended for the following rivers in
Oregon...

Siletz River at Siletz affecting Lincoln County.

Trask River near Tillamook affecting Tillamook County.

* WHAT...Moderate flooding is forecast.

* WHERE...Siletz River at Siletz.

* WHEN...From this afternoon to Friday afternoon.

* IMPACTS...Above 25.0 feet, expect major flooding, with evacuations
of residences and areas along the Siletz between mile post 2.5 and
mile post 5 on State Highway 229 near Sunset Landing downstream to
Coyote Rock. Stay tuned to local media sources and law enforcement
information for details.

* ADDITIONAL DETAILS...
- At 9:30 AM PST Thursday the stage was 7.9 feet.
- Bankfull stage is 12.0 feet.
- Forecast...The river is expected to rise above flood stage
this evening and crest around 24.3 feet late this evening. It
will then fall below flood stage Friday morning.
- Flood stage is 16.0 feet.
- http://www.weather.gov/safety/flood

Information:
Be especially cautious at night when it is harder to recognize the
dangers of flooding.

Motorists should not attempt to drive around barricades or drive
through flooded areas.

Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.

Additional information is available at www.weather.gov.

The next statement will be issued this evening at 1030 PM PST.

Flood Warning  FLOOD WARNING   Flood Warning
N. COAST OR

Areas Affected:
Benton, OR - Polk, OR
Effective: Thu, 12/18 10:30am Updated: Thu, 12/18 3:45pm Urgency: Immediate
Expires: Thu, 12/18 10:30pm Severity:  Severe  Certainty: Observed

 
Details:
...The Flood Warning continues for the following rivers in
Washington...Oregon...

Cowlitz River at Kelso affecting Cowlitz County.

Johnson Creek at Sycamore affecting Multnomah and Clackamas
Counties.

Clackamas River at Estacada affecting Clackamas County.

Clackamas River near Oregon City affecting Clackamas County.

Sandy River near Bull Run affecting Multnomah and Clackamas
Counties.

Hood River Near Hood River affecting Hood River County.

Siuslaw River near Mapleton affecting Lane County.

Molalla River near Canby affecting Clackamas County.

Marys River near Philomath affecting Benton County.

Pudding River at Aurora affecting Marion and Clackamas Counties.

Luckiamute River near Suver affecting Polk and Benton Counties.

S Yamhill River at McMinnville affecting Yamhill County.

...The Flood Warning is extended for the following rivers in
Oregon...

Siletz River at Siletz affecting Lincoln County.

Trask River near Tillamook affecting Tillamook County.

* WHAT...Moderate flooding is forecast.

* WHERE...Luckiamute River near Suver.

* WHEN...From Friday morning to early Sunday afternoon.

* IMPACTS...Above 29.0 feet, expect widespread flooding of the
lowland agricultural lands upstream from Falls City and Maple
Grove to the confluence with the Willamette River. Also expect
flooding and possible closure of numerous secondary roads near the
river.

* ADDITIONAL DETAILS...
- At 9:50 AM PST Thursday the stage was 19.1 feet.
- Bankfull stage is 25.0 feet.
- Forecast...The river will rise above flood stage Friday
morning and crest around 30.1 feet Saturday morning. It will
then fall below flood stage Sunday morning.
- Flood stage is 27.0 feet.
- http://www.weather.gov/safety/flood

Information:
Be especially cautious at night when it is harder to recognize the
dangers of flooding.

Motorists should not attempt to drive around barricades or drive
through flooded areas.

Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.

Additional information is available at www.weather.gov.

The next statement will be issued this evening at 1030 PM PST.

Flood Warning  FLOOD WARNING   Flood Warning
N. COAST OR

Areas Affected:
Benton, OR
Effective: Thu, 12/18 10:30am Updated: Thu, 12/18 3:45pm Urgency: Immediate
Expires: Thu, 12/18 10:30pm Severity:  Severe  Certainty: Observed

 
Details:
...The Flood Warning continues for the following rivers in
Washington...Oregon...

Cowlitz River at Kelso affecting Cowlitz County.

Johnson Creek at Sycamore affecting Multnomah and Clackamas
Counties.

Clackamas River at Estacada affecting Clackamas County.

Clackamas River near Oregon City affecting Clackamas County.

Sandy River near Bull Run affecting Multnomah and Clackamas
Counties.

Hood River Near Hood River affecting Hood River County.

Siuslaw River near Mapleton affecting Lane County.

Molalla River near Canby affecting Clackamas County.

Marys River near Philomath affecting Benton County.

Pudding River at Aurora affecting Marion and Clackamas Counties.

Luckiamute River near Suver affecting Polk and Benton Counties.

S Yamhill River at McMinnville affecting Yamhill County.

...The Flood Warning is extended for the following rivers in
Oregon...

Siletz River at Siletz affecting Lincoln County.

Trask River near Tillamook affecting Tillamook County.

* WHAT...Minor flooding is forecast. This approaches the flood of
record.

* WHERE...Marys River near Philomath.

* WHEN...From late tonight to Friday evening.

* IMPACTS...Above 20.0 feet, expect widespread low land and
agricultural flooding. Numerous roads along the Marys are
affected, and some structures near the river may begin to flood.

* ADDITIONAL DETAILS...
- At 9:00 AM PST Thursday the stage was 9.4 feet.
- Bankfull stage is 16.0 feet.
- Forecast...The river will rise above flood stage late tonight
and crest around 20.2 feet Friday morning. It will then fall
below flood stage Friday afternoon.
- Flood stage is 20.0 feet.
- http://www.weather.gov/safety/flood

Information:
Be especially cautious at night when it is harder to recognize the
dangers of flooding.

Motorists should not attempt to drive around barricades or drive
through flooded areas.

Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.

Additional information is available at www.weather.gov.

The next statement will be issued this evening at 1030 PM PST.

Coastal Flood Advisory  COASTAL FLOOD ADVISORY   Coastal Flood Advisory
N. COAST OR

Areas Affected:
Clatsop County Coast - Tillamook County Coast - Central Coast of Oregon
Effective: Thu, 12/18 3:32pm Updated: Thu, 12/18 3:45pm Urgency: Expected
Expires: Thu, 12/18 11:45pm Severity: Minor Certainty: Likely

 
Details:
* WHAT...Tidal overflow flooding expected.

* WHERE...North and Central Coast of Oregon.

* WHEN...From 10 AM to 4 PM PST Friday. The highest threat for
minor flooding is during the high tides from 11 AM to 1 PM PST.

* IMPACTS...Minor flooding and erosion, up to one foot above
ground level, during high tides is expected in the low lying
areas near bays, sloughs, and the lower reaches of the coastal
rivers.

* ADDITIONAL DETAILS...The tidal overflow concerns are due to the
combination of high river levels and high tides..

Information:
A Coastal Flood Advisory means that tidal overflow flooding is
expected. Coastal residents in the warned area should be alert
for rising water, and take appropriate action to protect life and
property.

Do not drive around barricades or through water of unknown depth.
Take the necessary actions to protect flood-prone property.

Flood Advisory  FLOOD ADVISORY   Flood Advisory
N. COAST OR

Areas Affected:
Clatsop, OR - Tillamook, OR - Washington, OR
Effective: Thu, 12/18 1:36pm Updated: Thu, 12/18 3:45pm Urgency: Expected
Expires: Thu, 12/18 7:30pm Severity: Minor Certainty: Likely

 
Details:
* WHAT...Small stream flooding caused by excessive rainfall is
expected.

* WHERE...A portion of northwest Oregon, including the following
counties, Clatsop, Tillamook and Washington.

* WHEN...Until 730 PM PST.

* IMPACTS...Minor flooding in low-lying and poor drainage areas.
Water over roadways. Some low-water crossings may become
impassable. River or stream flows are elevated.

* ADDITIONAL DETAILS...
- At 136 PM PST, Doppler radar and automated rain gauges
indicated heavy rain. This will cause small stream flooding.
Rapid river rises will cause minor flooding in the advisory
area. Between 1 and 2 inches of rain have fallen.
- Additional rainfall amounts of 2 to 4 inches are expected
over the area. This additional rain will result in minor
flooding.
- Some locations that will experience flooding include...
Cannon Beach, Garibaldi, Manzanita, Tillamook, Rockaway
Beach, Lees Camp, Trask, Elsie, Cape Meares, Netarts,
Oceanside, Bay City, Wheeler, Nehalem, Foss, Salmonberry,
Hamlet, Mohler, Wilson River Summit and Sunset Summit.
- http://www.weather.gov/safety/flood

Information:
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.

Be aware of your surroundings and do not drive on flooded roads.

Stay away or be swept away. River banks and culverts can become
unstable and unsafe.

In hilly terrain there are hundreds of low water crossings which are
potentially dangerous in heavy rain. Do not attempt to cross flooded
roads. Find an alternate route.

Flood Advisory  FLOOD ADVISORY   Flood Advisory
N. COAST OR

Areas Affected:
Clackamas, OR - Columbia, OR - Multnomah, OR - Washington, OR - Yamhill, OR - Clark, WA - Skamania, WA
Effective: Thu, 12/18 3:37pm Updated: Thu, 12/18 3:45pm Urgency: Expected
Expires: Thu, 12/18 7:30pm Severity: Minor Certainty: Likely

 
Details:
* WHAT...Urban and small stream flooding caused by excessive
rainfall is expected.

* WHERE...Portions of northwest Oregon, including the following
counties, Clackamas, Columbia, Multnomah, Washington and Yamhill
and southwest Washington, including the following counties, Clark
and Skamania.

* WHEN...Until 730 PM PST.

* IMPACTS...Minor flooding in low-lying and poor drainage areas.
River or stream flows are elevated.

* ADDITIONAL DETAILS...
- At 335 PM PST, Doppler radar and automated rain gauges
indicated moderate to heavy rain. This will cause urban and
small stream flooding. Between 1 and 2 inches of rain have
fallen with hourly rainfall rates ranging between 0.10 inches
per hour and 0.30 inches per hour.
- Additional rainfall amounts of 0.5 to 1 inches are expected
over the area through 730 pm. This additional rain will
result in minor flooding.
- Some locations that will experience flooding include...
Hillsboro, McMinnville, Oregon City, Battle Ground,
Washougal, St. Helens, Sandy, Woodland, Stevenson, Cascade
Locks, Portland Downtown, Vancouver Downtown, Portland,
Vancouver, Gresham, Beaverton, Tigard, Lake Oswego, Tualatin
and West Linn.
- http://www.weather.gov/safety/flood

Information:
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.

Be aware of your surroundings and do not drive on flooded roads.

Wind Advisory  WIND ADVISORY   Wind Advisory
N. COAST OR

Areas Affected:
North Oregon Coast Range Lowlands - North Oregon Coast Range - Lower Columbia River - Tualatin Valley - West Hills and Chehalem Mountains - Inner Portland Metro - East Portland Metro - Outer Southeast Portland Metro - Willapa and Wahkiakum Lowlands - Willapa Hills - Cowlitz County Lowlands - North Clark County Lowlands - Inner Vancouver Metro - East Clark County Lowlands - South Washington Cascade Foothills
Effective: Thu, 12/18 1:04pm Updated: Thu, 12/18 3:45pm Urgency: Expected
Expires: Thu, 12/18 7:00pm Severity:  Moderate  Certainty: Likely

 
Details:
* WHAT...South winds 15 to 20 mph with gusts up to 45 mph expected.

* WHERE...Greater Portland/Vancouver Metro, Willapa Hills and
Adjacent River Valleys of Pacific and Wahkiakum Counties, Lower
Columbia River and Cowlitz River Valleys, North Oregon Coast Range
Lowlands, North Oregon Coast Range, and South Washington Cascade
Foothills.

* WHEN...Until 7 PM PST this evening.

* IMPACTS...Gusty winds will blow around unsecured objects.
Saturated soils could result in downed trees, and tree limbs could
be blown down. Power outages may result.

Information:
Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects such as garbage cans and
other objects that can easily blow around.

Wind Advisory  WIND ADVISORY   Wind Advisory
N. COAST OR

Areas Affected:
Central Oregon Coast Range Lowlands - West Central Willamette Valley - East Central Willamette Valley - Benton County Lowlands - Linn County Lowlands - Lane County Lowlands - Clackamas County Cascade Foothills - Cascade Foothills of Marion and Linn Counties
Effective: Thu, 12/18 1:04pm Updated: Thu, 12/18 3:45pm Urgency: Expected
Expires: Thu, 12/18 7:00pm Severity:  Moderate  Certainty: Likely

 
Details:
* WHAT...South winds 15 to 20 mph with gusts up to 45 mph expected.

* WHERE...Central and Southern Willamette Valley, Central Oregon
Coast Range Lowlands, Clackamas County Cascade Foothills, and
Cascade Foothills of Marion and Linn Counties.

* WHEN...Until 7 PM PST this evening.

* IMPACTS...Gusty winds will blow around unsecured objects.
Saturated soils could result in downed trees, and tree limbs could
be blown down. Power outages may result.

Information:
Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects such as garbage cans and
other objects that can easily blow around.

Flood Watch  FLOOD WATCH   Flood Watch
N. COAST OR

Areas Affected:
Clatsop County Coast - Tillamook County Coast - Central Coast of Oregon - North Oregon Coast Range Lowlands - Central Oregon Coast Range Lowlands - North Oregon Coast Range - Central Oregon Coast Range - Lower Columbia River - Tualatin Valley - West Hills and Chehalem Mountains - Inner Portland Metro - East Portland Metro - Outer Southeast Portland Metro - West Central Willamette Valley - East Central Willamette Valley - Benton County Lowlands - Linn County Lowlands - Lane County Lowlands - West Columbia River Gorge of Oregon above 500 ft - West Columbia River Gorge I-84 Corridor - Upper Hood River Valley - Central Columbia River Gorge I-84 Corridor - Clackamas County Cascade Foothills - Cascade Foothills of Marion and Linn Counties - Lane County Cascade Foothills - North Oregon Cascades - Cascades of Marion and Linn Counties - Cascades of Lane County - South Washington Coast - Willapa and Wahkiakum Lowlands - Willapa Hills - Cowlitz County Lowlands - North Clark County Lowlands - Inner Vancouver Metro - East Clark County Lowlands - South Washington Cascade Foothills - West Columbia River Gorge - SR 14 - Central Columbia River Gorge - SR 14 - South Washington Cascades
Effective: Thu, 12/18 2:42am Updated: Thu, 12/18 3:45pm Urgency: Future
Expires: Thu, 12/18 7:00pm Severity:  Severe  Certainty: Possible

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

* WHERE...Northwest Oregon and southwest Washington including the
following counties. In Oregon: Benton, Clackamas, Clatsop,
Columbia, Hood River, Lane, Linn, Lincoln, Marion, Multnomah,
Polk, Tillamook, Washington, and Yamhill. In Washington: Clark,
Cowlitz, Pacific, Skamania, and Wahkiakum.

* WHEN...Through Saturday afternoon.

* 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. Storm drains
and ditches may become clogged with debris. Area creeks and
streams are running high and could flood with more heavy rain.
Landslides and debris flows are possible during this flood event.
People, structures, and roads located below steep slopes, in
canyons, and near the mouths of canyons may be at serious risk
from rapidly moving landslides.

* ADDITIONAL DETAILS...
- An atmospheric river is forecast to bring periods of heavy
rain to northwestern Oregon and southwestern Washington
today. This system occurs at a time when area rivers continue
to run high and soils remain saturated following heavy rain
earlier in the month. During initial heavy rainfall today,
the urban and small stream flooding threat will be most
urgent, although the details of precise timing and location
of the highest risk remains uncertain at this time. As runoff
works its way downstream, the river flooding threat will
increase tonight into Friday, with numerous area rivers now
forecast to reach at least Minor flood stage. Slower reacting
rivers may stay in flood stage into Saturday afternoon.
- http://www.weather.gov/safety/flood

Information:
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.