Marine Weather and Tides
12/16/2019 NOAA is having trouble with requests that include wind gusts. I am posting graphs without wind gusts until it gets fixed.
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.
|Sunrise 7:04AM||Sunset 5:43PM||Wednesday February 19, 2020 6:39 AM PST (14:39 UTC)||Moonrise 5:03AM||Moonset 1:50PM||Illumination 18%|
7 Day Forecast for Marine Location Near St. Helens, ORHourly EDIT Help
Area Discussion for - Portland, OR  (on/off)  Help NOTE: mouseover dotted underlined text for definition
FXUS66 KPQR 191105 AFDPQR
Area Forecast Discussion National Weather Service Portland OR 303 AM PST Wed Feb 19 2020
SYNOPSIS. High pressure will keep the region dry through Friday. Offshore flow strengthens today, then weakens later tonight into Thursday. A weak weather system brushes the region early Saturday, followed by a stronger front pushing across the region Sat night and Sunday. A cool start to next week, but looks like should be dry.
SHORT TERM. Today through Friday . No big changes. High pressure over the region keeping area dry, but chilly. At 3 am, temperatures at many lowland locations were in the upper 20s to lower 30s. But, where east winds are blowing, temperatures are milder, such as Portland and Troutdale where temperatures were in the lower 40s. Do have few pockets of low stratus and fog forming to south of Eugene along the Coast Fork of the Willamette, as well as in the Cowlitz Lowlands. But, this will be short-lived and should dissipate between 9 and 11 am today. Otherwise,sunny and dry today. Most locations will see a mild day, with afternoon temperatures into the lower to middle 50s. Would not be surprised if a few spots reach near 60, especially along the coast where temps will get a boost from the downsloping wind flow.
Cross-Gorge pressure gradient sitting at almost 5 mb offshore, maintaining gusts to 25 to 40 in the western Columbia Gorge and gusts 20 to 25 mph across east Vancouver/Portland metro area. Offshore gradients will continue to build, and should peak this afternoon into this evening. Models still indicate this gradient will peak at around 6 to 6.5 mb offshore later this evening into the overnight hours. At this strength, would see gusts in the western Gorge of 40 to 50 mph, with gusts in east Portland/Vancouver metro areas of 25 to 40 mph. So, not enough to support any advisories. Where winds stay up tonight, temperatures will stay in the middle to upper 30s. But, for those that are wind-sheltered from the easterly winds, temperatures will again drop into the upper 20s.
But, rather dry air will be riding the offshore flow westward. With that, will be dry, with little if any potential of fog tonight into Thu. Even frost may be problematic, and would be patchy in nature.
Will see increasing clouds from the southwest on Thu, but generally will be a partly cloudy day with milder temperatures. Again, in wind-sheltered areas, will be a chilly start to the day. Offshore gradients will relax though the day on Thursday, with offshore winds easing. Will generally see light winds Thu night, with patchy fog. But, will be another chilly night. Gradually will see return to light onshore flow during the day on Friday, as a front slowly approaches from the west. Only expected variable cloudiness on Friday, with no rain as front still too far offshore. Still mild, with temperatures in the lower 50s for highs. /Rockey
LONG TERM. Friday night through Tuesday . No changes. Previous discussion follows. Models continue to hint that a weakening front will move across the area Friday night as a shortwave trough slides east into British Columbia. The 12Z operational model runs show light QPF across the northern two-thirds of the area late Friday night through Sat morning. Nearly all of the ECMWF KPDX ensemble members show no QPF in the 06Z-18Z Sat time frame. Models and their ensembles remain in good agreement showing a more consolidated shortwave trough dropping southeast into the Pacific Northwest late Saturday into Sunday. There are rather substantial differences between the GFS and ECMWF regarding this system. The operational GFS depicts a near 980 mb low at 48N 131W 06Z Sun, while the ECMWF is 5- 6 degrees longitude more west. This storm system looks to bring another shot of valley rain and mountain snow in the Sat night through early Mon period. The National Blend of Models (NBM) shows snow levels lowering to 1000 to 1500 ft Sun evening. However, by Sun night the bulk of the precipitation will have already occurred. The Oregon Coast Range, SW Washington Willapa Hills and even the higher parts of the PDX West Hills may get a little snow Sun night into Mon morning. High pressure returns Mon night and Tue for a return to drier conditions. Weishaar
AVIATION. Offshore flow is expected to maintain widespread VFR conditions across northwest Oregon and southwest Washington next 24 hours. There is a slight chance of fog with IFR conditions briefly in the vicinity of KEUG between 13Z and 19Z. Expect gusty winds through the west end of the Gorge and locally along the coast and in the Coast Range to continue as well, with a modest increase in strength after 15Z-20Z.
KPDX AND APPROACHES . VFR conditions next 24 hours. East winds expected to strengthen some during the day after 15Z-20Z.
MARINE. No changes. Previous discussion follows. Offshore winds prevail over the waters through today. A thermally-induced low over northern California will result in marginal SCA gusts over the PZZ275 and PZZ270. Localized regions of SCA gusts will continue through the night and into Wednesday morning as winds push through gaps in the coastal terrain. There is not enough confidence to issue a wide spread advisory past 10pm this evening as these winds are again marginal and highly localized. Small crafts near Heceta Head, Newport, Neskowin, Oceanside and Astoria should be cautious tonight and Wednesday morning.
Winds will subside Wednesday night and begin the transition back to a westerly regime by Friday morning. Winds will stay below 10 kt through Friday night ahead of a system that looks to arrive Saturday night.
Seas will trend between 5 to 8 ft through Friday afternoon. Seas will build as the fresh swell from the Saturday system moves into the waters. There is moderate probability of the seas building to near 20 ft Sunday afternoon according to the 12Z GWES. -BPhillips
PQR WATCHES/WARNINGS/ADVISORIES. OR . None. WA . None. PZ . Small Craft Advisory until 10 PM PST this evening for coastal waters from Cape Shoalwater WA to Florence OR from 10 to 60 NM.
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This discussion is for Northwest oregon and Southwest Washington from the Cascade crest to 60 nm offshore. This area is commonly referred to as the forecast area.
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||18 mi||52 min||43°F||1026.1 hPa|
|ASTO3 - 9439040 - Astoria, OR||56 mi||52 min||NNW 6 G 11||43°F||1023.7 hPa|
|TLBO3 - 9437540 - Garibaldi, Tillamook Bay, OR||63 mi||58 min||49°F||1022.8 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.
|Scappoose Industrial Airpark, OR||8 mi||47 min||W 5||10.00 mi||Fair||28°F||25°F||88%||1025.6 hPa|
|Southwest Washington Regional Airport, WA||18 mi||44 min||N 0||10.00 mi||Fair||25°F||24°F||96%||1026.7 hPa|
|Pearson Airfield, WA||19 mi||47 min||Var 5||10.00 mi||Fair||28°F||23°F||81%||1025.5 hPa|
|Portland, Portland International Airport, OR||21 mi||47 min||N 0||10.00 mi||Fair||36°F||26°F||67%||1025.5 hPa|
|Portland-Hillsboro Airport, OR||24 mi||47 min||Var 4||10.00 mi||Fair||38°F||24°F||57%||1025 hPa|
Link to 5 minute data for KSPB
Wind History from SPB (wind in knots)
|1 day ago||Calm||Calm||Calm||E||Calm||NE||SE||S||NE||Calm||Calm||Calm||W||W||N||Calm||NW||NW||Calm||Calm||Calm||Calm||NW|
|2 days ago||W||NE||SW||SE||Calm||SW||SW||NW||W||Calm||W||N||SW||Calm||W||Calm||Calm||Calm||Calm||W||Calm||W |
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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 (9,2,3,4)(on/off)  Help
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