Marine Weather and Tides
10/9/2019 Updated the Marine Zones.
9/4/2019 Fixed the weather maps due to NOAA moving them.
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.
6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at L-36.com. Allen
|Sunrise 7:38AM||Sunset 4:28PM||Tuesday December 10, 2019 9:40 PM PST (05:40 UTC)||Moonrise 3:46PM||Moonset 5:52AM||Illumination 100%|
7 Day Forecast for Marine Location Near Portland, ORHourly EDIT Help
Area Discussion for - Portland, OR  (on/off)  Help NOTE: mouseover dotted underlined text for definition
FXUS66 KPQR 102305 AFDPQR
Area Forecast Discussion National Weather Service Portland OR 305 PM PST Tue Dec 10 2019
SYNOPSIS. A series of fronts will push across the region over the next several days for rather wet weather with few extended breaks. Snow levels are expected to stay above the Cascade passes through Thursday.
SHORT TERM. This afternoon through Friday . The first of a series of fronts is making its way through the forecast area this afternoon, bringing steady rain and finally increasing vertical mixing enough to rid us of the stagnant air. Rain expected to turn to showers tonight behind the front, creating some breaks in precipitation. There is still a rather large discrepancy in PoPs overnight with some models showing high shower coverage and others indicating a drier period. Although the current trough moves through rather quickly this evening, the next one is right on its heels, so have trended towards slightly higher PoPs.
The next system begins to swing onshore around midday Wednesday with steady rain again spreading inland Wednesday afternoon. The 36 hours between Wednesday afternoon and Thursday evening look like a guaranteed soaker and the most rain we've seen locally in a while. However, with as dry as it's been recently, don't expect any river flooding.
Beachgoers should note that there will be an enhanced threat for sneaker waves Wednesday night through Thursday and conditions may meet criteria for high surf. The impacts of these threats will be rough beach conditions, with general wave run up farther than usual and occasional unexpected individual wave run up even farther. Wednesday night and Thursday won't be good times to be on the beaches or jetties.
Kept a slight chance of thunder in the forecast for Thursday afternoon and expanded it a little bit inland, to the east slopes of the Coast Range. It's not a high confidence thunderstorm pattern, but instability looks decent. Hope to refine thunder threat over the next couple of shifts.
Snow levels are expected to remain above the Cascade passes through Thursday. However, they are likely to drop Thursday night into Friday behind the front. Any need for winter weather headlines in the Cascades will be dependent on when the snow levels drop. Right now snow amounts are marginal for all elevations below 6000 ft except the South Washington Cascades through Friday. Again, will be refining the details over the next couple of shifts. Bowen
LONG TERM. Friday night through Tuesday . The upper air patters remains progressive through the weekend, but without any significant individual systems, expect continuing showers. Snow levels continue to drop, settling at around 2500 ft for Saturday and Sunday. Operational runs of the models seem to be in decent agreement that upper ridging will move over the area starting Monday. From there, there is also general agreement that the ridge won't become the semi-permanent type we've seen over the recent weeks, but the question is how quickly it moves out and the next system approaches. Expect to see about a 24 hour dry period sometime between Monday and Wednesday, followed by a continuing active pattern. Bowen
AVIATION. Widespread stratus will continue through this evening as a front with accompanying rain passes through. Ceilings and visibilities will continue to be a mix of MVFR-IFR through this evening and into tomorrow morning. Winds will shift from easterly to southerly throughout the night. Increased wind gusts around 21Z Wed for the coastal and northern TAF sites. Fog is not expected overnight.
KPDX AND APPROACHES . Current MVFR conditions will continue for KPDX and KTTD as the front passes with rain this evening. VFR visibilities should return late tonight with increasing southerly winds. -BPhillips
MARINE. A cold front will move across the waters today bringing southerly winds gusting to 25 kt. Winds will subside overnight for a brief period of time with seas continuing to stay between 9 to 11 ft until tomorrow afternoon which will continue to the Small Craft Advisory through Wednesday afternoon. Winds will ramp-up Wednesday morning as a strong surface front from a Gulf of Alaska low swings across the waters bringing Gale force winds between 40 to 45 kt Wednesday evening.
There is a general consensus between models that the primary swell will be between 17 to 19 ft between 15 and 17s. Combined wave heights may reach 20 ft in some areas. Seas will generally stay at or above 10 ft through the weekend. Long period swells pose an increased risk for hazardous beaches, please refer to short- term discussion for more information. -BPhillips
PQR WATCHES/WARNINGS/ADVISORIES. OR . None. WA . None. PZ . Small Craft Advisory until 1 PM PST Wednesday for coastal waters from Cape Shoalwater WA to Florence OR out 60 NM.
Gale Warning from 1 PM Wednesday to 1 AM PST Thursday for coastal waters from Cape Shoalwater WA to Florence OR out 60 NM.
Small Craft Advisory until 4 PM PST Wednesday for Columbia River Bar.
Weather Reporting StationsEDIT (on/off)  Help NOTE: Click on distance to see the station location on a map
|Stations||Dist||Age||Wind||Air Temp||Water Temp||Waves||Pressure||DewPt|
|LOPW1 - 9440422 - Longview, WA||42 mi||59 min||46°F||1019.7 hPa|
|TLBO3 - 9437540 - Garibaldi, Tillamook Bay, OR||66 mi||59 min||47°F||1019.2 hPa|
|ASTO3 - 9439040 - Astoria, OR||74 mi||59 min||N 5.1 G 8||43°F||46°F||1018.5 hPa|
Wind History for Longview, WA(wind in knots) EDIT (on/off)  Help
Airport ReportsEDIT (on/off)  Help Click EDIT to display multiple airports. Follow links for more data.
|Pearson Airfield, WA||6 mi||48 min||Var 5||4.00 mi||Light Rain Fog/Mist||42°F||39°F||89%||1020.3 hPa|
|Portland, Portland International Airport, OR||7 mi||48 min||ESE 9||10.00 mi||Overcast||42°F||39°F||92%||1020.3 hPa|
|Portland-Hillsboro Airport, OR||14 mi||48 min||N 0||3.00 mi||Light Rain Fog/Mist||44°F||42°F||93%||1019.9 hPa|
|Portland, Portland-Troutdale Airport, OR||15 mi||48 min||E 13||7.00 mi||Light Rain||41°F||37°F||86%||1020.4 hPa|
|Scappoose Industrial Airpark, OR||19 mi||48 min||SSE 5||4.00 mi||Light Rain Fog/Mist||41°F||39°F||96%||1019.9 hPa|
|Aurora State Airport, OR||20 mi||48 min||N 0||5.00 mi||Fog/Mist||44°F||42°F||93%||1020.2 hPa|
Link to 5 minute data for KPDX
Wind History from PDX (wind in knots)
|1 day ago||Calm||NE||Calm||Calm||E||E||E||SE||E||SE||E||E||E||N||Calm||Calm||NW||NW||W||Calm||SW||Calm||SE||SE|
|2 days ago||Calm||E||E||E||Calm||Calm||E||Calm||Calm||E||E||E||E||E||NE||N||Calm||Calm||Calm||Calm||Calm||Calm||Calm||Calm|
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GEOS Local Image of PacificNorthwest EDIT
NOTE: East coast views moved to GEOS-16. They are experimental and not well supported by NOAA so they may not be correct so be warned. This change required redoing a large amount of the GOES code. If the image you are expecting is not showing, please let me know. You may need to use the EDIT function to update your location.
Link to Loop
Other links: Northern Pacific Contential US Full GOES-East
Wind Forecast for Portland, OR (0,6,7,8)(on/off)  Help
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