Portland, Oregon Weather Conditions

Severe Weather Alerts

National Weather Service:

Areal Flood Watch View All Alerts

Your Weather

To update your location please enter your ZIP code, city, state, airport code or country in the field below. Weather by E-mail: Forecast storm alerts. Weather E-Mail Alert Sign Up »

Current Conditions

  • 46°
  • Light Rain
  • Wind: ESE 14 mph
  • Humidity: 93%
  • Visibility: 10.0 miles
  • Dew Point: 44°
  • Pressure: 29.93 in. 0
  • Heat Index: 40

Select a Section

Click a section below for more information.

Next 12 Hours

10  pm
1  am
4  am
7  am
10  am
Rain
Rain
Rain
Rain
Rain
Rain
Rain
Rain
Rain
Rain
48°
46°
45°
45°
48°
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Saturday
  • Rain
  • High: 54 °
  • Low: 52 °
  • Rain
  • Sunday
  • Rain
  • High: 55 °
  • Low: 48 °
  • Rain
  • Monday
  • Chance of Rain
  • High: 55 °
  • Low: 45 °
  • Chance of Rain
  • Tuesday
  • Chance of Rain
  • High: 52 °
  • Low: 43 °
  • Chance of Rain
  • Wednesday
  • Chance of Rain
  • High: 45 °
  • Low: 36 °
  • Chance of Rain

Forecast for Portland, Oregon

Updated: 7:00 PM PST on December 19, 2014

  • Friday

    Mostly cloudy with rain showers, then rain in the afternoon. High of 52F. Winds from the South at 5 to 10 mph. Chance of rain 90%.

  • Friday Night

    Overcast with rain. Low of 45F. Winds from the SE at 5 to 15 mph. Chance of rain 100% with rainfall amounts near 0.5 in. possible.

  • Saturday

    Overcast with rain. Fog early. High of 54F. Breezy. Winds from the South at 15 to 20 mph. Chance of rain 100% with rainfall amounts near 0.7 in. possible.

  • Saturday Night

    Overcast with rain. Low of 52F. Winds from the SW at 10 to 15 mph. Chance of rain 100% with rainfall amounts near 0.8 in. possible.

  • Sunday

    Overcast with rain. High of 55F. Winds from the WSW at 5 to 15 mph. Chance of rain 100% with rainfall amounts near 0.8 in. possible.

  • Sunday Night

    Overcast with rain. Low of 48F. Winds from the WSW at 5 to 10 mph. Chance of rain 50% with rainfall amounts near 0.4 in. possible.

  • Monday

    Overcast with a chance of rain. High of 55F. Winds less than 5 mph. Chance of rain 40%.

  • Monday Night

    Overcast with a chance of rain. Fog overnight. Low of 45F. Winds from the SSE at 5 to 10 mph. Chance of rain 40%.

  • Tuesday

    Overcast with a chance of rain. Fog early. High of 52F. Winds from the SSW at 5 to 10 mph. Chance of rain 70% with rainfall amounts near 0.5 in. possible.

  • Tuesday Night

    Overcast with a chance of rain. Low of 43F. Winds less than 5 mph. Chance of rain 60% with rainfall amounts near 0.2 in. possible.

  • Wednesday

    Partly cloudy with a chance of rain. Fog early. High of 45F. Winds less than 5 mph. Chance of rain 40%.

  • Wednesday Night

    Overcast with a chance of rain. Fog overnight. Low of 36F. Winds less than 5 mph. Chance of rain 20%.

  • Thursday

    Mostly cloudy with a chance of rain. High of 48F. Winds less than 5 mph. Chance of rain 20%.

  • Thursday Night

    Partly cloudy. Fog overnight. Low of 28F. Winds less than 5 mph.

  • Friday

    Mostly cloudy. Fog early. High of 46F. Winds less than 5 mph.

  • Friday Night

    Partly cloudy with a chance of rain. Low of 30F. Winds less than 5 mph. Chance of rain 20%.

  • Saturday

    Mostly cloudy with a chance of snow. Fog early. High of 34F. Winds less than 5 mph. Chance of snow 40%.

  • Saturday Night

    Overcast with a chance of snow. Fog overnight. Low of 28F. Winds less than 5 mph. Chance of snow 50% with accumulations up to 1 in. possible.

  • Sunday

    Mostly cloudy with a chance of a thunderstorm. Fog early. High of 34F. Winds from the East at 5 to 10 mph. Chance of rain 30%.

  • Sunday Night

    Mostly cloudy with a chance of snow. Fog overnight. Low of 28F. Winds less than 5 mph. Chance of snow 20%.

  • Monday

    Partly cloudy with a chance of snow. Fog early. High of 34F with a windchill as low as 25F. Winds from the East at 5 to 10 mph. Chance of snow 40%.

  • Monday Night

    Clear. Fog overnight. Low of 28F with a windchill as low as 21F. Winds from the East at 5 to 10 mph.

Severe Weather Alert Descriptions

 Areal Flood Watch  Statement as of 10:54 am PST on December 19, 2014


... Flood Watch in effect from Saturday afternoon through Monday
afternoon for southwest Washington and northwest Oregon...

The National Weather Service in Portland has issued a Flood Watch
for southwest Washington and northwest Oregon. This watch is in
effect from Saturday afternoon through Monday afternoon.

Confidence continues to increase that a classic atmospheric river
type precipitation event will set up over the Pacific northwest
over the weekend and continue into early Monday. A deep and moist
westerly flow is expected to develop Saturday morning and
strengthen later Saturday and Sunday. A very long fetch of
moisture with origins west to the South China Sea will feed into
this system... bringing the potential for very large rainfall
totals across the region. With the flow forecasted to remain
perpendicular to the Coast Range and Cascades for an extended
period of time... expect strong orographic enhancement to lead to
the highest rainfall totals over the mountains. The Coast
Range... foothills and Cascades are expected to see in the range of
6 to 12 inches of rain... with locally higher amounts possible.
Lower but still significant totals are expected for the lower
terrain. Projected rainfall along the coast is forecasted to be
around 4 to 8 inches... with 2 to 5 inches expected over the
interior lowlands.

Given the latest forecasted rainfall totals... it appears that
there is the strong potential for flooding over the weekend on
numerous rivers and tributaries draining the Coast Range and
Cascades. A few rivers may reach major flood stage. The Current
River stage forecasts indicate that the faster responding rivers
could reach flood stage as early as Saturday evening. There also
appears to be potential for flooding on some of the main Stem
rivers early next week. In addition to flooding potential on the
main Stem rivers and tributaries... there are likely to be impacts
from Urban and Small Stream flooding and flooding along low lying
pasture land.

In addition to the flooding concerns... excessive rainfall has the
potential to create landslides... debris flows... and excessive runoff
in the vicinity of recent wildfire burn scars. Burn scars from two
large fires this Summer... the 36 pit fire in the Clackamas river
basin near Estacada and the deception complex near Oakridge... will
be particularly vulnerable.

Precautionary/preparedness actions...

A Flood Watch means there is a potential for flooding based on
current forecasts.

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.

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.

The next update for this watch will be issued by 6 am Saturday
morning.





Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: Southwest Portland, Portland, OR

Updated: 11:11 PM PST

Temperature: 46.2 °F Dew Point: 44 °F Humidity: 93% Wind: North at - Pressure: 29.97 in Hourly Precipitation: - Windchill: 46 °F Graphs

Location: Portland - West Hills, Portland, OR

Updated: 11:13 PM PST

Temperature: 44.2 °F Dew Point: 38 °F Humidity: 77% Wind: SSW at 4.0 mph Pressure: 29.84 in Hourly Precipitation: 0.03 in Windchill: 42 °F Graphs

Location: Lair Hill, Portland, OR

Updated: 11:13 PM PST

Temperature: 46.0 °F Dew Point: 44 °F Humidity: 94% Wind: Calm Pressure: 29.88 in Hourly Precipitation: 0.00 in Windchill: 46 °F Graphs

Location: Bridlemile, Portland, OR

Updated: 11:00 PM PST

Temperature: 45.0 °F Dew Point: 44 °F Humidity: 95% Wind: South at 5.8 mph Pressure: 29.74 in Hourly Precipitation: - Windchill: 42 °F Graphs

Location: APRSWXNET Portland OR US, Portland, OR

Updated: 10:31 PM PST

Temperature: 46 °F Dew Point: 46 °F Humidity: 99% Wind: Calm Pressure: 30.03 in Hourly Precipitation: 0.00 in Windchill: 46 °F Graphs

Location: MesoWest Zoo Bridge (US 26 MP 72) OR US ODOT, Portland, OR

Updated: 10:40 PM PST

Temperature: 45 °F Dew Point: 45 °F Humidity: 99% Wind: West at 1 mph Pressure: - Hourly Precipitation: 0.00 in Windchill: 45 °F Graphs

Location: Multnomah Village North, Portland, OR

Updated: 11:11 PM PST

Temperature: 45.4 °F Dew Point: 45 °F Humidity: 97% Wind: Calm Pressure: 29.94 in Hourly Precipitation: 0.03 in Windchill: 45 °F Graphs

Location: N of Bridlemile School, Portland, OR

Updated: 11:04 PM PST

Temperature: 46.6 °F Dew Point: 45 °F Humidity: 93% Wind: Calm Pressure: 29.92 in Hourly Precipitation: 0.02 in Windchill: 47 °F Graphs

Location: Westerly, NW Portland, Portland, OR

Updated: 11:08 PM PST

Temperature: 46.2 °F Dew Point: 44 °F Humidity: 92% Wind: Calm Pressure: 29.88 in Hourly Precipitation: - Windchill: 46 °F Graphs

Location: Hillside, Portland, OR

Updated: 11:11 PM PST

Temperature: 46.4 °F Dew Point: 44 °F Humidity: 90% Wind: North at - Pressure: 29.62 in Hourly Precipitation: - Windchill: 46 °F Graphs

Location: South Burlingame, Portland, OR

Updated: 11:13 PM PST

Temperature: 46.4 °F Dew Point: 44 °F Humidity: 90% Wind: Calm Pressure: 29.53 in Hourly Precipitation: 1.30 in Windchill: 46 °F Graphs

Location: Creston - Kenilworth, Portland, OR

Updated: 11:11 PM PST

Temperature: 47.7 °F Dew Point: 46 °F Humidity: 92% Wind: North at - Pressure: 30.12 in Hourly Precipitation: - Windchill: 48 °F Graphs

Location: MesoWest Fremont Bridge West (I-405 MP 3. OR US ODOT, Portland, OR

Updated: 10:40 PM PST

Temperature: 47 °F Dew Point: 41 °F Humidity: 77% Wind: West at 9 mph Pressure: - Hourly Precipitation: 0.00 in Windchill: 43 °F Graphs

Location: Richmond / Stripling Weather Network, Portland, OR

Updated: 11:06 PM PST

Temperature: 45.7 °F Dew Point: 45 °F Humidity: 99% Wind: Calm Pressure: 29.86 in Hourly Precipitation: - Windchill: 46 °F Graphs

Location: Portland Rowing Club, Portland, OR

Updated: 11:13 PM PST

Temperature: 45.9 °F Dew Point: 45 °F Humidity: 96% Wind: Calm Pressure: 29.93 in Hourly Precipitation: 0.04 in Windchill: 46 °F Graphs

Location: Southwest Portland, Portland, OR

Updated: 11:11 PM PST

Temperature: 44.8 °F Dew Point: 44 °F Humidity: 98% Wind: North at - Pressure: 30.01 in Hourly Precipitation: - Windchill: 45 °F Graphs

Location: Waverleigh Heights, Portland, OR

Updated: 11:05 PM PST

Temperature: 47.8 °F Dew Point: 46 °F Humidity: 93% Wind: SE at 2.0 mph Pressure: 29.90 in Hourly Precipitation: - Windchill: 48 °F Graphs

Location: Sullivan's Gulch, Portland, OR

Updated: 11:12 PM PST

Temperature: 47.7 °F Dew Point: 46 °F Humidity: 94% Wind: Calm Pressure: 29.65 in Hourly Precipitation: 0.00 in Windchill: 48 °F Graphs

Location: Richmond, Portland, OR

Updated: 11:12 PM PST

Temperature: 46.2 °F Dew Point: 45 °F Humidity: 96% Wind: North at - Pressure: 29.98 in Hourly Precipitation: - Windchill: 46 °F Graphs

Location: Irvington, Portland, OR

Updated: 11:13 PM PST

Temperature: 47.6 °F Dew Point: 46 °F Humidity: 93% Wind: Calm Pressure: 29.84 in Hourly Precipitation: 0.00 in Windchill: 48 °F Graphs

Location: Laurelhurst, Portland, OR

Updated: 11:13 PM PST

Temperature: 46.8 °F Dew Point: 41 °F Humidity: 81% Wind: Calm Pressure: 29.74 in Hourly Precipitation: 0.00 in Windchill: 47 °F Graphs

Location: Smith School, Portland, OR

Updated: 10:59 PM PST

Temperature: 46.9 °F Dew Point: 44 °F Humidity: 90% Wind: NE at 1.6 mph Pressure: 29.91 in Hourly Precipitation: 0.02 in Windchill: 47 °F Graphs

Location: Creston Park, Portland, OR

Updated: 11:13 PM PST

Temperature: 46.9 °F Dew Point: 45 °F Humidity: 94% Wind: Calm Pressure: 29.90 in Hourly Precipitation: 0.04 in Windchill: 47 °F Graphs

Location: West Hills, Portland, OR

Updated: 11:13 PM PST

Temperature: 45.6 °F Dew Point: 44 °F Humidity: 94% Wind: ESE at 4.2 mph Pressure: 29.18 in Hourly Precipitation: 0.00 in Windchill: 44 °F Graphs

Location: Raleigh Park, Portland, OR

Updated: 11:12 PM PST

Temperature: 45.8 °F Dew Point: 44 °F Humidity: 94% Wind: Calm Pressure: 29.90 in Hourly Precipitation: 0.00 in Windchill: 46 °F Graphs

Location: Forest Park, Portland, OR

Updated: 11:10 PM PST

Temperature: 44.6 °F Dew Point: 44 °F Humidity: 96% Wind: West at 2.0 mph Pressure: 29.05 in Hourly Precipitation: 0.01 in Windchill: 45 °F Graphs

Location: SW Portland - Tryon Creek, Portland, OR

Updated: 11:09 PM PST

Temperature: 44.4 °F Dew Point: 44 °F Humidity: 99% Wind: Calm Pressure: 29.91 in Hourly Precipitation: - Windchill: 44 °F Graphs

Location: West Slope, Portland, OR

Updated: 11:11 PM PST

Temperature: 46.7 °F Dew Point: 45 °F Humidity: 94% Wind: ESE at 1.0 mph Pressure: 29.88 in Hourly Precipitation: 0.01 in Windchill: 47 °F Graphs

Location: Cedar Mill, Portland, OR

Updated: 11:11 PM PST

Temperature: 45.1 °F Dew Point: 44 °F Humidity: 94% Wind: North at - Pressure: 29.96 in Hourly Precipitation: 0.02 in Windchill: 45 °F Graphs

Location: Torreyview, Portland, OR

Updated: 11:13 PM PST

Temperature: 46.2 °F Dew Point: 44 °F Humidity: 91% Wind: Calm Pressure: 30.30 in Hourly Precipitation: 0.00 in Windchill: 46 °F Graphs

Location: Woodstock, Portland, OR

Updated: 11:10 PM PST

Temperature: 47.4 °F Dew Point: 45 °F Humidity: 91% Wind: SSE at 2.0 mph Pressure: 29.82 in Hourly Precipitation: - Windchill: 47 °F Graphs

Location: West Portland Park, Portland, OR

Updated: 11:12 PM PST

Temperature: 45.2 °F Dew Point: 43 °F Humidity: 92% Wind: Calm Pressure: 29.87 in Hourly Precipitation: 0.05 in Windchill: 45 °F Graphs

Location: Ardenwald Station #1, Portland, OR

Updated: 11:09 PM PST

Temperature: 46.8 °F Dew Point: 45 °F Humidity: 93% Wind: Calm Pressure: 29.90 in Hourly Precipitation: 0.03 in Windchill: 47 °F Graphs

Location: Garden Home, Portland, OR

Updated: 11:13 PM PST

Temperature: 45.9 °F Dew Point: 45 °F Humidity: 97% Wind: ESE at 2.0 mph Pressure: 29.90 in Hourly Precipitation: 0.02 in Windchill: 46 °F Graphs

Location: Mt Tabor, Portland, OR

Updated: 11:10 PM PST

Temperature: 47.6 °F Dew Point: 44 °F Humidity: 86% Wind: SE at 2.0 mph Pressure: 29.88 in Hourly Precipitation: 0.02 in Windchill: 48 °F Graphs

Location: Raleigh Hills, Beaverton, OR

Updated: 11:13 PM PST

Temperature: 46.9 °F Dew Point: 45 °F Humidity: 92% Wind: Calm Pressure: 29.90 in Hourly Precipitation: 0.07 in Windchill: 47 °F Graphs

Location: Humboldt, Portland, OR

Updated: 11:13 PM PST

Temperature: 46.0 °F Dew Point: 46 °F Humidity: 99% Wind: Calm Pressure: 30.03 in Hourly Precipitation: 0.02 in Windchill: 46 °F Graphs

Location: Portland, OR

Updated: 11:13 PM PST

Temperature: 47.0 °F Dew Point: 42 °F Humidity: 81% Wind: WSW at 3.0 mph Pressure: 29.82 in Hourly Precipitation: 0.01 in Windchill: 47 °F Graphs

MSN Maps of:

Temp: Dew Point: Humidity Wind Pressure Hr Precip -

NWS Forecaster Discussion




Area forecast discussion 
National Weather Service Portland or 
910 PM PST Friday Dec 19 2014 


Synopsis...mild and very wet weather is expected this weekend with 
a strong westerly flow over the Pacific resulting in heavy rain 
across much of the region...especially mountainous terrain. There is 
the potential for some flooding late this weekend into early next 
week. Longer range model output is suggesting a colder air mass will 
settle over the Pacific northwest late next week. 


&& 


Short term...surface observations and radar indicated some light 
rain scattered over the area this evening. Moist isentropic lift is 
expected to pick up overnight...and is seen lowering in model forecasts 
from near the 300k isentrope down to 290k and below after 
midnight...which should result in most areas seeing rain developing 
overnight. Low level pressure gradients increase rapidly overnight and 
into Sat morning as a warm front approaches the coast. Flow is 
initially out of the S to SW Sat morning...but turns to the west during 
the day. Surface pressure gradients in models continue to suggest 
strongest winds along the coast to run from late tonight through Sat 
morning...but likely to be a little below high wind criteria for 
most locations. Will continue to mention gusts to around 55 miles per hour 
mainly for The Headlands and beaches. The strong SW flow in the 
morning coupled with the arrival of the tropical moisture coming 
across the Pacific suggests some heavy rainfall developing over much 
of the forecast area Sat morning. As the flow turns more westerly at 
850 mb later in the day...orographic effects will enhance with 
windward terrain catching the heaviest rain...and a bit of a rain 
shadowing effect beginning to show to the leeward sides of the 
mountains. Snow levels will rise during the day Sat with warm air 
advection...but not before some snow falls in the Cascades. The SW 
facing Cascades of S Washington will be the most orographically favored in 
the morning when snow levels remain low...and so are likely to see 
the most significant snowfall. On the coast...seas expected to begin 
subsiding by early afternoon which coupled with shortening wave 
periods will bring an and to high surf threat. 


Remainder of short term discussion unchanged...both GFS and NAM are 
trending down with quantitative precipitation forecast on Sunday so decreased it to some extent... 
but since that looks like when the best orographic enhancement will 
occur...did not want to limit it too much. Did bring inland valley 
quantitative precipitation forecast down a bit though to reflect likely strong rain shadow effect 
from the Coast Range. Still think we could see rain rates in the 
higher elevations of 1.5 to 2 inches per 6 hours for as many as 24 
hours in a row though. A few inches of snow fell today on Mount Hood 
and probably some of the other area peaks but snow pack is generally 
minimal right now. Despite low snow pack...latest Hydro guidance 
suggests some rivers will reach flood stage. Please refer to 
hydrology section and current Flood Watch for more details. 


The atmospheric river spigot looks like it finally shuts off Sunday 
night with decreasing probability of precipitation into Monday as high pressure pushes into 
the area from off the California coast. However river flooding may 
continue to be a threat as the significant weekend precipitation drains down 
from the higher terrain. Bowen/wishaar 


&& 


Long term...no changes. Previous discussion follows. Monday night 
through Friday...an upper level ridge will amplify over the region 
late Monday into Tuesday. Extended models agree on a weak shortwave 
attempting to flatten the ridge Tuesday morning as an upper level 
trough begins to deepen in the Gulf of Alaska. Cloudy and rainy 
conditions will linger into the middle of next week as this dirty 
ridge remains over the area. The next more significant system 
arrives late Wednesday afternoon as the upper level trough axis 
becomes more negatively tilted and starts to shift inland. This 
Marks the next best shot for the Cascades to finally see some snow 
accumulations...as snow levels drop to 2000-2500 feet through 
Christmas day. Holiday travelers headed over the Cascade passes will 
certainly need to monitor the forecast. Colder north flow will 
follow and allow temperatures to cool well below normal as 
conditions dry out next Friday. /27 


&& 


Hydrology...confidence continues to increase that a significant 
atmospheric river type precipitation event will impact southwest 
Washington and northwest Oregon over the weekend and into early next 
week. Precipitation will start late tonight into early Sat as a warm 
front pushes onshore. The baroclinic zone will then stall over the 
region later Sat and remain nearly stationary into early Monday. 
Significant sub-tropical moisture with a long fetch that stretches 
all the way to the South China Sea will feed into this frontal 
system...bringing the likelihood of very large rainfall totals 
across the region. Low and middle level winds will switch from 
southerly to westerly Sat afternoon. These strong westerly winds 
will continue into early Monday...which will create significant 
orographic enhancement to the precipitation along the higher terrain 
of the Coast Range...foothills...and Cascades. These areas are 
expected to see around 6 to 12 inches over rain through early 
Monday...with localized areas seeing even higher amounts in the north 
Oregon Cascades. The lower terrain is forecasted to see 
lower...although still impressive totals. We expect 4 to 8 inches to 
fall along the coast...and 2 to 5 inches over the interior lowlands. 


Based on the latest forecast rainfall totals...numerous area rivers 
are now projected to reach flood stage. A few locations are even 
projected to reach major flood stage. A Flood Watch has been issued 
for all of SW Washington and northwest Oregon starting late Sat afternoon 
and continuing through Monday. Some of the faster responding rivers 
draining the Coast Range and Cascades could reach flood stage as 
early as Sat evening. Slower responding and main Stem rivers would 
likely not reach flood until later Sunday or early next week. 


In addition to the flooding concerns...excessive rainfall has the 
potential to create landslides...debris flows...and excessive runoff 
in the vicinity of recent wildfire burn scars. Burn scars from two 
large fires this Summer...the 36 pit fire in the Clackamas river 
basin near Estacada and the deception complex near Oakridge...will 
be particularly vulnerable. 


As is usually the case with these atmospheric river heavy 
precipitation events...a lot depends on exactly where the band of 
subtropical moisture sets up. The forecast models have been consistently 
highlighting our region for some of the most significant impacts for 
the last several days. However...there could still be shifts in the 
exact positioning of the system...which would effect precipitation 
estimates and river forecasts. Please continue to follow the latest 
forecasts. River forecasts are available on our web Page at: 
http://water.Weather.Gov/ahps2/index.Php?Wfo=pqr (all lower case). 
Pyle 


&& 


Aviation...rain beginning to filter into the area with conditions 
slowly lowering as a warm front approaches the area. MVFR is 
increasing on the coast and should be widespread overnight with 
areas of IFR developing and continuing through Saturday in 
moderate to heavy rain. Inland areas generally VFR but expect 
conditions to head to low MVFR around 12z Sat or so with the warm 
front closer to the area. Moderate to heavy rain at times will 
also reduce visibilities to 1 to 2 miles a times. The warm front 
lifts north of the area midday Sat but continued rain as the 
following front remain stalled over northwest Oregon and SW Washington. 


Kpdx and approaches...current VFR conditions with light rain is 
expected to yield to low MVFR around 12z Sat as a warm front 
approaches. IFR conditions also possible especially late tonight 
and Sat morning. /Mh 


&& 


Marine...variety of marine impacts over the next 24 hours. Larger 
long period westerly swell reached buoy 46089 about 80 nm offshore 
late this afternoon and had been fluctuating between 16 and 19 feet 
but has now settled around 20 feet. Near shore buoys are around 16 
feet and should climb to near 20 feet by midnight and continue through 
Saturday afternoon then begin to subside. Current buoy 
observations compare favorably to model output so confidence in 
forecast is good. 


Southwesterly to westerly winds will continue into 
Sunday...keeping seas well in the teens through Sunday night. Seas 
may temporarily bottom out near 10 feet early next week before a 
weak front...and accompanying larger westerly swell around 15 feet 
slides into the waters towards midweek. 


Winds with the next frontal storm system is still on track to 
impact the waters late tonight and Saturday morning. Expect winds 
to gradually increase with solid gale force winds of 30 to 35 knots 
with gusts of 40 knots expected across the waters by Saturday 
morning. 00z model runs a touch weaker so possibility of 
widespread storm force winds has diminished. There may be an hour 
or two between 4 am and 7 am Sat where a coastal jet develops and 
push gusts up closer to 50 knots. Additional gusts of 35 knots may 
linger across the waters into Saturday evening as another weak 
surge of winds enters the waters. 


People should avoid walking and climbing on jetties along the 
Oregon and Washington coasts through Saturday...but especially 
this afternoon and evening. There is considerable concern that 
sneaker waves will run up much farther up the beach than waves 
observed over the previous 15 to 30 minutes. Under similar 
scenarios...people have been killed by being swept off their feet 
and dragged out to sea by the receding water or by the water 
dislodging stuck Driftwood that subsequently roles over an 
unsuspecting person. Please be cognizant of this when recreating 
on the beaches of the Oregon and Washington coasts through 
Saturday. 


High tide near Toke Point is expected to flirt with 11 feet on 
Saturday due to a tidal anomaly near 1 feet. However...the heaviest 
rain will not have arrived to allow the flows on the Willapa and 
Naselle rivers to increase enough that minor tidal overflow 
flooding will be a concern. While the tidal anomaly will likely be 
slightly less on Sunday...the substantial increase in river flows 
expected on the Willapa and Naselle rivers increase our concern on 
minor tidal overflow flooding occurring around the towns of 
Raymond...Naselle and other low lying spots around Willapa Bay 
Washington. In fact...by midday Sunday...several Oregon coastal 
rivers will likely be near flood stage or exceeding flood stage so 
tidal overflow concerns will likely encompass a larger portion of 
our coastline. Due to the rivers remaining relatively high into 
Monday...tidal overflow concerns could certainly linger with the 
high tide midday Monday. Expect these issues to be most prevalent 
between 9 am and 3 PM on Sunday/Monday. /Neuman 


&& 


Pqr watches/warnings/advisories... 
or...Flood Watch from Saturday afternoon through Monday afternoon 
for Cascade foothills in Lane County-Cascades in Lane County- 
central Coast Range of western Oregon-central Columbia 
River gorge-central Oregon coast-central Willamette Valley- 
Coast Range of northwest Oregon-greater Portland metropolitan area- 
lower Columbia-north Oregon coast-northern Oregon Cascade 
foothills-northern Oregon Cascades-south Willamette Valley- 
Upper Hood River Valley-western Columbia River gorge. 


High surf advisory until 4 PM PST Saturday for central Oregon 
coast-north Oregon coast. 


Washington...Flood Watch from Saturday afternoon through Monday afternoon 
for central Columbia River gorge-Greater Vancouver area-I-5 
corridor in Cowlitz County-South Washington Cascade 
foothills-South Washington Cascades-South Washington coast- 
western Columbia River gorge-Willapa Hills. 


High surf advisory until 4 PM PST Saturday for South 
Washington coast. 


Winter Weather Advisory until 1 PM PST Saturday for South 
Washington Cascades. 


Pz...Small Craft Advisory for winds until 1 am PST Saturday for 
coastal waters from Cape Shoalwater Washington to Florence or out 60 nm. 


Gale Warning from 1 am to 9 PM PST Saturday for coastal waters 
from Cape Shoalwater Washington to Florence or out 60 nm. 


Small Craft Advisory for hazardous seas until 1 am PST Saturday 
for coastal waters from Cape Shoalwater Washington to Florence or out 
60 nm. 


Small Craft Advisory for rough Columbia River bar until 4 am PST 
Sunday. 


&& 




$$ 


Interact with US via social media 
www.Facebook.Com/nwsportland 
www.Twitter.Com/nwsportland 


This discussion is for northwest Oregon and southwest Washington 
from the Cascade crest to 60 nautical miles offshore. The area is 
commonly referred to as the forecast area. 






National Weather Service Glossary of Abbreviations

Non-Expanded Version (with abbreviations)

Powered by the Weather Underground, Inc.