Tuesday, May26, 2020
Privacy Policy
L-36.com


Marine Weather and Tides
Minnehaha, WA

Version 3.4
NOTICE
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 5:26AMSunset 8:49PM Tuesday May 26, 2020 8:30 PM PDT (03:30 UTC) Moonrise 7:42AMMoonset 11:44PM Illumination 25% Phase: Waxing Crescent; Moon at 5 days in cycle
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      (on/off)   Help
PZZ210 Columbia River Bar- 505 Pm Pdt Tue May 26 2020
In the main channel.. - general seas...2 to 4 ft through Wednesday. - first ebb...around 815 pm Tuesday. Seas to 5 ft. - second ebb...around 815 am Wednesday. Seas to 5 ft. - third ebb...around 915 pm Tuesday. Seas to 4 ft.
PZZ200 505 Pm Pdt Tue May 26 2020
Synopsis for the southern washington and northern oregon coast.. High pressure over the northeast pacific and a weak trough of low pressure over interior california will lead to a fairly typical summertime north to northwesterly wind pattern across the waters through the end of the work week. Expect winds to peak during the late afternoon and evening hours each day. Conditions will begin to change on Saturday as an upper low moves over the waters.


7 Day Forecast for Marine Location Near Minnehaha, WA
   Hourly   EDIT   Help
location: 45.62, -122.67     debug


Area Discussion for - Portland, OR
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
FXUS66 KPQR 270302 AFDPQR

Area Forecast Discussion National Weather Service Portland OR 802 PM PDT Tue May 26 2020

SYNOPSIS. A ridge of high pressure will build in over the Pacific Northwest for the latter half of the work week, bringing dry weather and warmer temperatures. Low pressure moving up from the southwest will bring increasing chances for showers and thunderstorms Friday night and Saturday, followed by a return to cooler more seasonable temperatures.

SHORT TERM. This afternoon through Friday . No changes. Previous discussion follows. Visible satellite imagery shows a mix of sun and clouds across the forecast area this afternoon, with some fair weather cumulus and thin cirrus above. Temperatures are generally up 5-10 deg F versus Monday, except right along the coast where the afternoon sea breeze is keeping temps in the upper 50s to mid 60s. With dewpoints generally in the 50s, expect a mild evening with a slightly muggy feel to it. Patchy valley fog is possible later tonight into Wednesday morning.

The long-advertised warming trend is expected to continue into Wednesday and Thursday, as high pressure keeps the region dry with occasional high clouds. With plenty of sunshine and 850 mb temps warming from +8 deg C today to +14 or +15 deg C Wednesday afternoon, it seems reasonable to expect temps to reach into the 80s for the inland valleys Wednesday. While somewhat weak, onshore flow will maintain cooler temps along the coast, and marine stratus may become more widespread as marine inversions strengthen due to the warming aloft.

Temperatures should warm further Thursday, with most 12z/18z guidance suggesting 850 mb temps continuing to warm to +16 to +18 deg C depending on one's choice of model. Cannot completely rule out a couple inland spots reaching 90 deg F Thursday afternoon, but we held temperatures below that given the potential for high clouds and a weakly onshore pressure gradient.

Flow aloft backs from southwesterly to southerly Friday as upper level ridging strengthens over the western United States. This may allow enough moisture to fuel an isolated thunderstorm or two along the Lane County Cascades Friday afternoon, but there may still be a capping inversion in place from our departing ridge. Shower and thunderstorm chances will increase Friday night into Saturday as an upper low lifts northward into the region from the California coastal waters, potentially turning the flow southeasterly aloft. Models show a healthy amount of moisture involved in this system, so any showers Fri night/Sat could be efficient rain producers. Weagle

LONG TERM. Friday night through Tuesday . No changes. Previous discussion follows. As mentioned above, models show reasonable agreement that an upper low off the California coast will lift northward into Oregon Friday night and Saturday. This is a fairly classic thunderstorm pattern for us, with deep moisture and southeasterly flow aloft bringing the chance of thunder to anyone in our forecast area. Any surface-based thunderstorms Friday afternoon should diminish during the evening, but increasing instability aloft and the approaching upper low bring the chance for nocturnal high- based convection later Friday night into Saturday morning. Model QPF is rather impressive Fri night/Sat, bolstered by total precipitable water values on the order of 1.25 to 1.50 inch. This upper low will likely initiate a strong marine push at the low levels, resulting in a substantial cooldown Saturday. More seasonable temperatures can be expected Sunday into early next week, along with decreasing showers. Weagle

AVIATION. Generally VFR conditions continuing for the next 24 hours. Patchy shallow valley fog is possible 10Z-17Z, but the fog is unlikely to impact flight conditions at main airports.

KPDX AND APPROACHES . VFR conditions next 24 hours.

MARINE. A typical summer-time north-northwesterly wind pattern has will continue through the rest of the week as high pressure dominates the northeast Pacific and thermal-induced low pressure sets up near the north California and south Oregon coast. Winds generally peaking around 15 to 20 kt during the late afternoon and evening hours each day. The strongest winds will be over the central Oregon waters, where gusts will approach 25 kt.

In general, seas should hold in the 4 to 5 ft range through early Thursday. Significant wave heights will be mainly driven by wind waves during this time, as the background westerly swell will be weak, as suggested by the latest ENP/NWPS model guidance. Seas should begin to build Thursday afternoon and evening as prominent northerly flow continues and a more notable west- northwest swell develops. By Thursday night, combined seas should approach 10 ft and remain elevated into the weekend. -TK

PQR WATCHES/WARNINGS/ADVISORIES. OR . None. WA . None. PZ . Small Craft Advisory until 3 AM PDT Wednesday for coastal waters from Cascade Head OR to Florence OR out 60 NM.



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 nm offshore. This area is commonly referred to as the forecast area.


Weather Reporting Stations
   EDIT       (on/off)   Help   NOTE: Click on distance to see the station location on a map
Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
LOPW1 - 9440422 - Longview, WA 37 mi48 min 57°F1019.6 hPa
TLBO3 - 9437540 - Garibaldi, Tillamook Bay, OR 66 mi42 min 58°F1019.8 hPa
ASTO3 - 9439040 - Astoria, OR 71 mi42 min Calm G 1.9 62°F 58°F1020.4 hPa

Wind History for Longview, WA
(wind in knots)    EDIT      (on/off)   Help
Last
24hr
1 day
ago
2 days
ago

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports. Follow links for more data.
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Pearson Airfield, WA1 mi37 minNNW 710.00 miFair68°F50°F53%1018.8 hPa
Portland, Portland International Airport, OR4 mi37 minNW 810.00 miPartly Cloudy66°F52°F61%1018.9 hPa
Scappoose Industrial Airpark, OR14 mi37 minNNW 610.00 miFair66°F52°F61%1018.8 hPa
Portland, Portland-Troutdale Airport, OR15 mi37 minWSW 310.00 miFair67°F51°F57%1018.4 hPa
Portland-Hillsboro Airport, OR16 mi37 minNE 610.00 miFair66°F52°F61%1018.7 hPa

Link to 5 minute data for KVUO

Wind History from VUO (wind in knots)
9
PM
10
PM
11
PM
12
AM
1
AM
2
AM
3
AM
4
AM
5
AM
6
AM
7
AM
8
AM
9
AM
10
AM
11
AM
12
PM
1
PM
2
PM
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
Last 24hrCalmW3CalmCalmCalmCalmCalmCalmNW3NW5NW4NW43N5NW76W7W7W5W8NW7NW7NW5N7
1 day ago4N4N4CalmW3CalmCalmCalmCalmNW4NW3CalmW3CalmCalmCalm3CalmE5CalmSE3NW333
2 days agoCalmCalmW3CalmCalmSE4CalmE4CalmCalmE3SE4CalmSW4W4SW44SW44SW4SW4NW5N45

Tide / Current Tables for Vancouver, Washington - IGNORE HEIGHTS
   EDIT   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.


Tide / Current Tables for Kelley Point, Oregon - IGNORE HEIGHTS
   EDIT      (on/off)   Help   One Week of Data
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.


Weather Map
       (on/off)   Help Weather Map
wmap_P
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 (23,6,7,8)
      (on/off)   Help

Ground Weather Radar Station Portland, OR
   (on/off)   Help
weather_mapweather_map weather_map

Ad by Google

Cookie Policy:
This website uses cookies to save your settings. No personal information is saved. I do not collect statistics on your visit. You can disable cookies in your browser if you like but it is not recommended for this site. I do not sell cookies. Go to a bakery for that. In fact I do not sell anything. To disable cookies from L-36.com, please refer to the Help button in your browser.
Privacy Policy:
I do not sell or share any user data or anything else for that matter. The only personal information I save is in the site log which has a line for each page view which includes the IP address your browser sends in the header as well as which page you requested. I use this to block hackers and other bad actors. I do not use this raw data to create profiles on users. I periodically delete the log files. If you are subject to CCPA, Google ads on this site will not be based on your past behavior so you will likely not see an ad for a lawn mower just because you looked for one at a big box website. I do not believe this site is subject to CCPA but I am doing what I can to follow the guidelines anyway.
Disclaimer:
The information on this web site has not been checked for accuracy. It is for entertainment purposes only and should be independently verified before using for any other reason. There are five sources. 1) Documents and manuals from a variety of sources. These have not been checked for accuracy and in many cases have not even been read by anyone associated with L-36.com. I have no idea of they are useful or accurate, I leave that to the reader. 2) Articles others have written and submitted. If you have questions on these, please contact the author. 3) Articles that represent my personal opinions. These are intended to promote thought and for entertainment. These are not intended to be fact, they are my opinions. 4) Small programs that generate result presented on a web page. Like any computer program, these may and in some cases do have errors. Almost all of these also make simplifying assumptions so they are not totally accurate even if there are no errors. Please verify all results. 5) Weather information is from numerous of sources and is presented automatically. It is not checked for accuracy either by anyone at L-36.com or by the source which is typically the US Government. See the NOAA web site for their disclaimer. Finally, tide and current data on this site is from 2007 and 2008 data bases, which may contain even older data. Changes in harbors due to building or dredging change tides and currents and for that reason many of the locations presented are no longer supported by newer data bases. For example, there is very little tidal current data in newer data bases so current data is likely wrong to some extent. This data is NOT FOR NAVIGATION. See the XTide disclaimer for details. In addition, tide and current are influenced by storms, river flow, and other factors beyond the ability of any predictive program.