Scappoose, OR Marine Weather and Tide Forecast
Top   Marine   7-Day   NWS   Buoy   Airport   Tide   Map   GEOS   Radar   TAF  

Marine Weather and Tide Forecast for Scappoose, OR

June 18, 2024 4:45 AM PDT (11:45 UTC) Change Location
Sunrise 5:20 AM   Sunset 9:05 PM
Moonrise 5:10 PM   Moonset 1:44 AM 
  Print   HELP   Reset   Save   Recall  New
NOTE: Some of the data on this page has not been verified and should be used with that in mind. It may and occasionally will, be wrong. The tide reports are by xtide and are NOT FOR NAVIGATION.

Marine Forecasts
    EDIT      HIDE   Help
PZZ210 Columbia River Bar- 244 Am Pdt Tue Jun 18 2024

In the main channel -

General seas - 2 to 4 ft though Wednesday morning.

First ebb - Ebb current of 4.81 kt at 242 am Tuesday. Seas 4 ft.

SEcond ebb - Ebb current of 2.36 kt at 304 pm Tuesday. Seas 4 ft.

Third ebb - Ebb current of 5.26 kt at 324 am Wednesday. Seas 3 to 4 ft.

PZZ200 244 Am Pdt Tue Jun 18 2024

Synopsis for the southern washington and northern oregon coast - High pressure offshore will persist through the week with increasing northerlies across the coastal waters.

7 Day Forecast for Marine Location Near Scappoose, OR
   Hourly   EDIT   Help   Map   HIDE
NEW! Add second zone forecast

Area Discussion for - Portland, OR
      HIDE   Help   
NOTE: mouseover dotted underlined text for definition

Area Forecast Discussion National Weather Service Portland OR 247 AM PDT Tue Jun 18 2024

Drier and sunnier weather returns today as temperatures climb back near seasonal normals in the 70s inland.
Hotter conditions develop Wednesday through Saturday, peaking Thursday into Friday as highs in the Portland area possibly reach 90s degrees. Low pressure will moderate temperatures again Sunday into early next week, with precipitation chances remaining more uncertain.

Showers have mostly tapered off across northwest Oregon and southwest Washington as of early Tuesday morning, leaving a broken mid level cloud deck around 5000-6000 feet lingering over the area. Expect these clouds to dissipate through later this morning as northwest flow aloft and northerly flow closer to the surface continue to advect drier air into the region in the wake of the departing trough. Sunny skies this afternoon, coupled with gradually rising 500 mb heights and 850 mb temps climbing to around 8-9 degrees C, will correspond to high temps rebounding into the mid 70s across much of the area this afternoon. Temps will remain more moderate at the coast as a slight onshore component maintains the influence of the marine layer.

Temperatures will continue their sharp upward trajectory on Wednesday as the upper level pattern is characterized by a developing Rex Block in the upper levels over the West Coast.
Closer to the surface, a strengthening thermal trough extending from the California Central Valley into south-central Oregon will induce cross barrier flow over the Casacdes and subsequent downsloping for the interior lowlands. This will send highs well into the 80s on Wednesday afternoon for areas away from the coast, with NBM probabilistic guidance indicating a 30 percent chance to reach 90 degrees across the Portland metro area.

The heat still looks to peak across the area Thursday into Friday as high pressure continues to build over the region, with model guidance deviating relatively little from previous forecast packages. Operational NBM guidance as well as a majority of GEFS, ECENS, and CMC individual ensemble members continue to depict a most likely scenario of highs reaching around 90 degrees from Portland to Salem and the mid to upper 80s towards Eugene both Thursday and Friday. However, NBM probabilistic guidance continues to leave open the possibility of a higher end solution, showing a 30-40 percent chance to reach 95 degrees from the Portland metro area down to Salem on Friday afternoon. This probability is notably much lower, closer to 5 percent, into the south Willamette Valley as well as the I-5 corridor in southwest Washington. Additionally overnight lows are still forecast to drop into the upper 50s each night, which will hopefully serve to somewhat mitigate more widespread or cumulative HeatRisk concerns as the overnight period should offer at least some relief each day. Still, will have to continue to monitor the potential for highs to climb a bit higher into the 90s toward the end of the week, particularly on Friday.

Guidance shows good agreement on temperatures beginning to trend downward on Friday as the Rex Block breaks down and high pressure shifts east and opens the door to stronger onshore flow. That said, still expect highs to reach into the mid 80s for most interior locations on Saturday afternoon. More substantial cooling should come on Sunday as WPC ensemble clusters show good agreement on the next upper level trough beginning to impact the Pacific Northwest, with temps back closer to seasonal norms in the low to mid 70s. Precipitation remains an iffier proposition as the core of the upper trough remains north over BC, with NBM guidance holding onto 20-30 PoPs along coastal areas and southwest Washington Sunday into Monday while keeping the rest of the area dry through early next week.

Upper level troughing moving across the region this morning will shift east today with increasing northwesterly flow aloft. Should maintain predominately VFR though increasing clouds inland this morning with CIGS around 4000 to 6000 ft through the morning. At the coast, best chance (~60%) for MVFR CIGS near KAST through 18Z this morning. Farther south, light offshore flow should maintain mostly clear skies. Low level flow turns bit more northerly later this morning, increasing through the afternoon.
With dry northerly flow in the lower levels expect clouds to gradually scatter becoming mostly clear later today.

PDX AND APPROACHES...VFR with broken CIGS around 4000 to 6000 ft.
There is a small chance (25-35%) of higher end MVFR CIGS between 10Z and 15Z. Clouds break up 18Z to 21Z, with VFR under mostly clear skies afterwards. Expect northwest winds increasing up to 9 kt this afternoon/evening. /DH

Not much change as high pressure offshore is expected to persist through the week. Northerly winds 5-10 kt across coastal waters this morning increase to around 15-20 kt later this afternoon as a thermal trough strengthens from northern CA into southern OR. A Small Craft Advisory will be in effect south of Cape Falcon through tonight. Expect will see periods of winds gusting up to 25 kt through Friday during the late afternoon and evenings. Latest guidance suggests a SCA will likely be needed across all coastal waters for Wednesday and Thursday. Seas around 4 to 6 feet will generally be wind driven through the week. A weak front is expected to approach the waters this weekend. /DH

PZ...Small Craft Advisory from 5 PM this afternoon to 4 AM PDT Wednesday for PZZ252-272.
Small Craft Advisory from 2 PM this afternoon to 4 AM PDT Wednesday for PZZ253-273.

Weather Reporting Stations
   EDIT       HIDE   Help
Stations Dist Age Wind AirWater WavesinHgDewPt
KLMW1 20 mi51 min 30.09
LOPW1 - 9440422 - Longview, WA 28 mi51 min 62°F30.10
TLBO3 - 9437540 - Garibaldi, Tillamook Bay, OR 56 mi51 min 57°F30.11

Wind History for No Ports station near this location
(wind in knots)    EDIT      HIDE   Help
toggle option: (graph/table)

No data

Airport Reports
    EDIT      HIDE   Help   Click EDIT to display multiple airports. Follow links for more data.
Link to 1 hour of 5 minute data for KSPB
NEW Forecast page for KSPB

Wind History graph: SPB
(wind in knots)
toggle option: (graph/table)

Tide / Current for Rocky Point, Multnomah Channel, Oregon
EDIT   Weekend mode (on/off)   HIDE   Help
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

Rocky Point, Multnomah Channel, Oregon, Tide feet

Tide / Current for Kelley Point, Oregon - IGNORE HEIGHTS
   EDIT      HIDE   Help
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

Kelley Point, Oregon - IGNORE HEIGHTS, Tide feet

Weather Map
      HIDE   Help

GEOS Local Image of Pacific Northwest   

Portland, OR,

NOTICE: Some pages have affiliate links to Amazon. As an Amazon Associate, I earn from qualifying purchases. Please read website Cookie, Privacy, and Disclamers by clicking HERE. To contact me click HERE. For my YouTube page click HERE