Weather Alerts for PDX Metro

Issued by the National Weather Service

Flood Warning  FLOOD WARNING   Flood Warning
PDX METRO

Areas Affected:
Clackamas, OR - Marion, OR
Effective: Wed, 12/17 11:17am Updated: Wed, 12/17 3:00pm Urgency: Expected
Expires: Wed, 12/17 11:30pm Severity:  Severe  Certainty: Likely

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

Wilson River near Tillamook affecting Tillamook County.

Johnson Creek at Sycamore affecting Multnomah and Clackamas
Counties.

Clackamas River at Estacada affecting Clackamas County.

Siletz River at Siletz affecting Lincoln County.

Marys River near Philomath affecting Benton County.

Pudding River at Aurora affecting Marion and Clackamas Counties.

Siuslaw River near Mapleton affecting Lane County.

Luckiamute River near Suver affecting Benton and Polk Counties.

* WHAT...Moderate flooding is forecast.

* WHERE...Pudding River at Aurora.

* WHEN...From late Thursday night to Wednesday, December 24.

* IMPACTS...Above 27.0 feet, expect widespread flooding of numerous
secondary roads and agricultural land.

* ADDITIONAL DETAILS...
- At 10:00 AM PST Wednesday the stage was 14.4 feet.
- Bankfull stage is 21.0 feet.
- Forecast...The river is expected to rise above flood stage
early Friday morning to a crest of 26.6 feet early Saturday
morning. It will then fall below flood stage Tuesday
afternoon.
- Flood stage is 22.0 feet.
- http://www.weather.gov/safety/flood

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

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

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

Additional information is available at www.weather.gov.

The next statement will be issued this evening at 1130 PM PST.

Flood Warning  FLOOD WARNING   Flood Warning
PDX METRO

Areas Affected:
Clackamas, OR - Multnomah, OR
Effective: Wed, 12/17 11:17am Updated: Wed, 12/17 3:00pm Urgency: Expected
Expires: Wed, 12/17 11:30pm Severity:  Severe  Certainty: Likely

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

Wilson River near Tillamook affecting Tillamook County.

Johnson Creek at Sycamore affecting Multnomah and Clackamas
Counties.

Clackamas River at Estacada affecting Clackamas County.

Siletz River at Siletz affecting Lincoln County.

Marys River near Philomath affecting Benton County.

Pudding River at Aurora affecting Marion and Clackamas Counties.

Siuslaw River near Mapleton affecting Lane County.

Luckiamute River near Suver affecting Benton and Polk Counties.

* WHAT...Major flooding is forecast.

* WHERE...Johnson Creek at Sycamore.

* WHEN...From Thursday afternoon to early Friday afternoon.

* IMPACTS...Above 14.0 feet, expect widespread flooding of
residential and commercial areas along Johnson Creek.

* ADDITIONAL DETAILS...
- At 10:30 AM PST Wednesday the stage was 6.0 feet.
- Bankfull stage is 10.0 feet.
- This forecast is three feet higher than last weeks crest of
11.3 feet.
- Forecast...The river will rise sharply on Thursday and peak
around 14.3 feet late Thursday night into Friday morning.
- Flood stage is 11.0 feet.
- http://www.weather.gov/safety/flood

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

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

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

Additional information is available at www.weather.gov.

The next statement will be issued this evening at 1130 PM PST.

Flood Warning  FLOOD WARNING   Flood Warning
PDX METRO

Areas Affected:
Clackamas, OR
Effective: Wed, 12/17 11:17am Updated: Wed, 12/17 3:00pm Urgency: Expected
Expires: Wed, 12/17 11:30pm Severity:  Severe  Certainty: Likely

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

Wilson River near Tillamook affecting Tillamook County.

Johnson Creek at Sycamore affecting Multnomah and Clackamas
Counties.

Clackamas River at Estacada affecting Clackamas County.

Siletz River at Siletz affecting Lincoln County.

Marys River near Philomath affecting Benton County.

Pudding River at Aurora affecting Marion and Clackamas Counties.

Siuslaw River near Mapleton affecting Lane County.

Luckiamute River near Suver affecting Benton and Polk Counties.

* WHAT...Major flooding is forecast.

* WHERE...Clackamas River at Estacada.

* WHEN...From Thursday evening to Saturday morning.

* IMPACTS...Above 25.0 feet, expect major flood damage at parks
along the river. Also expect flooding in Carver, along with
numerous homes along the Clackamas River from Estacada downstream
to the confluence with the Willamette.

* ADDITIONAL DETAILS...
- At 9:45 AM PST Wednesday the stage was 15.6 feet.
- Bankfull stage is 18.0 feet.
- Forecast...The river will rise to above flood stage on
Thursday evening.  It is expected to peak just above the
major flood stage at 25.06 feet early Friday morning.
- Flood stage is 20.0 feet.
- http://www.weather.gov/safety/flood

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

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

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

Additional information is available at www.weather.gov.

The next statement will be issued this evening at 1130 PM PST.

Winter Weather Advisory  WINTER WEATHER ADVISORY   Winter Weather Advisory
PDX METRO

Areas Affected:
North Oregon Cascades - Cascades of Marion and Linn Counties
Effective: Wed, 12/17 10:44am Updated: Wed, 12/17 3:00pm Urgency: Expected
Expires: Thu, 12/18 7:00am Severity:  Moderate  Certainty: Likely

 
Details:
* WHAT...Wet snow expected. Total snow accumulations up to 6 inches.
Winds gusting as high as 40 mph.

* WHERE...North Oregon Cascades and Cascades of Marion and Linn
Counties.

* WHEN...From 4 AM to 10 AM PST Thursday.

* IMPACTS...Roads, and especially bridges and overpasses, will
likely become slick and hazardous.

Information:
Be prepared for slippery roads. Slow down and use caution while
driving. If you are going outside, watch your first few steps taken
on stairs, sidewalks, and driveways. These surfaces could be icy and
slippery, increasing your risk of a fall and injury.

Have a winter emergency driving kit readily available. Common items
to include: flashlight, batteries, blankets, a shovel, water,
non-perishable food items, tire chains, etc.

For the latest road conditions and chain restrictions in Oregon,
call 5 1 1, or visit: www.tripcheck.com.

Wind Advisory  WIND ADVISORY   Wind Advisory
PDX METRO

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: Wed, 12/17 2:46pm Updated: Wed, 12/17 3:00pm Urgency: Expected
Expires: Thu, 12/18 2:15am 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...From 8 AM to 7 PM PST Thursday.

* IMPACTS...Gusty winds will blow around unsecured objects. Tree
limbs could be blown down and a few 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
PDX METRO

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 - Lane County Cascade Foothills
Effective: Wed, 12/17 2:46pm Updated: Wed, 12/17 3:00pm Urgency: Expected
Expires: Thu, 12/18 2:15am Severity:  Moderate  Certainty: Likely

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

* WHERE...Central and Southern Willamette Valley, Foothills of the
Northern and Central Oregon Cascades, and Central Oregon Coast
Range Lowlands.

* WHEN...From 8 AM to 7 PM PST Thursday.

* IMPACTS...Gusty winds will blow around unsecured objects. Tree
limbs could be blown down and a few 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
PDX METRO

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: Wed, 12/17 2:50pm Updated: Wed, 12/17 3:00pm Urgency: Future
Expires: Thu, 12/18 3:00am Severity:  Severe  Certainty: Possible

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

* WHERE...Portions of Oregon, including the following areas, Benton
County Lowlands, Cascade Foothills of Marion and Linn Counties,
Cascades of Lane County, Cascades of Marion and Linn Counties,
Central Coast of Oregon, Central Columbia River Gorge I-84
Corridor, Central Oregon Coast Range, Central Oregon Coast Range
Lowlands, Clackamas County Cascade Foothills, Clatsop County
Coast, East Central Willamette Valley, East Portland Metro, Inner
Portland Metro, Lane County Cascade Foothills, Lane County
Lowlands, Linn County Lowlands, Lower Columbia River, North Oregon
Cascades, North Oregon Coast Range, North Oregon Coast Range
Lowlands, Outer Southeast Portland Metro, Portland West Hills and
Chehalem Mountain, Tillamook County Coast, Tualatin Valley, Upper
Hood River Valley, West Central Willamette Valley, West Columbia
River Gorge I-84 Corridor and West Columbia River Gorge of Oregon
above 500 ft and southwest Washington, including the following
areas, Central Columbia River Gorge SR 14 Corridor, Cowlitz County
Lowlands, East Clark County Lowlands, Inner Vancouver Metro, North
Clark County Lowlands, South Washington Cascade Foothills, South
Washington Cascades, South Washington Coast, West Columbia River
Gorge SR 14 Corridor, Willapa Hills and Willapa and Wahkiakum
Lowlands.

* WHEN...From late tonight through late Friday 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. 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 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 on Thursday, 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 Thursday
night into Friday, with numerous area rivers now forecast to
reach at least Minor flood stage.
- 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.