Saturday, May27, 2017

Marine Weather and Tides
Kalama, WA

Version 3.4
What's New / NOTES
5/23/2017 - Worked with NOAA again to speed up the 7 day forecast load times. Thanks to them for being responsive.
5/19/2016 - There were issues with the 3 day airport observation history. I switched to another data source. Let me know if you see any issues with the data feeds.

Sunrise 5:24AMSunset 8:53PM Saturday May 27, 2017 8:48 AM PDT (15:48 UTC) Moonrise 6:34AMMoonset 10:01PM Illumination 5% Phase: Waxing Crescent; Moon at 2 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
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PZZ210 Columbia River Bar- 227 Am Pdt Sat May 27 2017
.small craft advisory for rough columbia river bar in effect until 9 am pdt this morning...
In the main channel..Combined seas around 6 to 7 ft subsiding to near 5 ft early Saturday. However...seas temporarily 8 ft with breakers during the very strong ebb around 630 am Saturday morning...and to 6 ft during the ebb around 715 pm Saturday evening.
PZZ200 227 Am Pdt Sat May 27 2017
Synopsis for southern washington and northern oregon coast.. High pres will remain over the coastal waters with low pres inland through early next week. A weather system is possible around the middle to latter part of next week.

7 Day Forecast for Marine Location Near Kalama, WA
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location: 46, -122.85     debug

Area Discussion for - Portland, OR
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Fxus66 kpqr 271025
area forecast discussion
national weather service portland or
325 am pdt Sat may 27 2017

Synopsis An upper level ridge of high pressure will maintain it's
presence over the region through the memorial day weekend. Afternoon
high temperatures will remain well above normal. The ridge of high
pressure will shift eastward into the northern rockies early next
week as a weather disturbance approaches the area. Thunderstorm
chances develop Monday over the cascades but continue Tuesday and
expand westward to the valley as well. Temperatures trend gradually
cooler with rain chances during the second half of the week as a
disturbance tracks across the pacific northwest.

Short term Today through Monday night... Upper ridge well in place
today with probably the warmest temperatures still to come Sunday.

Although, there will be little difference for many areas over the
next 3 days with highs in the very upper 80s to lower 90s. Coastal
temperatures will also be quite pleasant with highs in the 60s to
lower 70s although the forecast there is a little more tricky as
stratus has filled in along the entire south washington and north
oregon shoreline. Additionally, have added patchy fog with
occasional drizzle for the morning hours as onshore flow may give
just enough lift against the terrain to squeeze some very light
precipitation out.

Sunday looks to be a near repeat of today although do have some
concerns regarding convection over the cascades and foothills. Spc
has placed most of our area under a general risk for thunderstorms.

0-3km most unstable CAPE and mixed layer LI would imply that is
valid for the cascade foothills, especially east of eugene. A look
at soundings, however, do show a fairly robust cap around 850 mb
with significantly drier air above it. So, it seems unlikely any
surface based convection will reach sufficiently high to generate
showers or thunderstorms, but do expect we will see cumulus clouds
over the terrain as we have the past couple days. The only exception
could come from temperatures becoming much hotter than forecasted
needing to reach into the upper 90s to overcome the 850 cap.

Monday seems a little better for deeper convection but there is
still the issue of the mid-level cap, although it's a bit higher and
weaker. Stronger onshore flow from a late marine push might be just
enough of a trigger to overcome the cap as the marine front reaches
the foothills. Jbonk

Long term Tuesday through Friday... No changes. Previous
discussion follows. Cooler conditions as heights lower by early
Tuesday as the upper ridge shifts east of the rockies and an upper
trough approaches the pacific northwest. With south to southwest
flow aloft over the region, continue to include a small chance of
thunderstorms over the higher cascade elevations, primarily near the
crest. While some differences in models with the timing of various
shortwave impulses moving through the base of the trough, overall do
see better agreement among the forecast models for the overall
pattern. Better chance for widespread showers, and perhaps even some
thunderstorms, Wednesday as the upper trough axis passes across the
region. Temperatures will trend cooler but still near or slightly
above seasonal norms by the end of the week. Cullen

Aviation Vfr conditions inland through Saturday night. Ifr
vis cig at the coast with a southerly wind reversal. Coast may
improve toVFR late this morning or early afternoon briefly
before stratus returns Saturday night.

Kpdx and approaches...VFR today and tonight. Bowen

Marine Winds will continue below 20 kt through at least the
middle of next week. Northerly winds continue over most of the
waters through the weekend. However nearshore winds will switch
back to out of the south again tonight, accompanied again by low
stratus and or fog.

Seas have settled in the 6 to 7 foot range and will settle to
around 5 ft through most of next week. With swell period
increasing, don't even expect particularly steep or choppy seas.


Pqr watches warnings advisories
Or... None.

Wa... None.

Pz... Small craft advisory for rough columbia river bar until 9 am
pdt this morning.

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Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
LOPW1 - 9440422 - Longview, WA 9 mi49 min 56°F1018.5 hPa (+1.1)
ASTO3 - 9439040 - Astoria, OR 51 mi49 min WSW 4.1 G 7 51°F 60°F1018.5 hPa (+1.7)
TLBO3 - 9437540 - Garibaldi, Tillamook Bay, OR 64 mi49 min 55°F1019.4 hPa (+1.5)

Wind History for Longview, WA
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1 day
2 days

Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Kelso, Kelso-Longview Airport, WA9 mi53 minN 010.00 miFair56°F50°F81%1019.1 hPa
Scappoose, Scappoose Industrial Airpark, OR16 mi56 minN 010.00 miFair61°F52°F72%1017.7 hPa

Wind History from KLS (wind in knots)
Last 24hrCalmNW6W44CalmCalm54NW10W11W8W7W3CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalm
1 day ago454N7N6N7N10
2 days agoS33CalmW4W9W8

Tide / Current Tables for Kalama, Washington - IGNORE HEIGHTS
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Click for MapNote: The Columbia River is subject to annual freshets. Short range predictions are available at local river forecast centers. The data for stations above Harrington Point apply only during low river stages. There is a tidal influence along most of the

Sat -- 01:41 AM PDT     2.03 feet Low Tide
Sat -- 05:27 AM PDT     Sunrise
Sat -- 05:30 AM PDT     9.87 feet High Tide
Sat -- 07:34 AM PDT     Moonrise
Sat -- 02:38 PM PDT     -1.78 feet Low Tide
Sat -- 07:03 PM PDT     7.95 feet High Tide
Sat -- 08:50 PM PDT     Sunset
Sat -- 11:00 PM PDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

Tide / Current Tables for Longview, Columbia River, Washington
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Click for Map
Sat -- 12:00 AM PDT     0.57 feet Low Tide
Sat -- 04:49 AM PDT     5.55 feet High Tide
Sat -- 05:27 AM PDT     Sunrise
Sat -- 07:35 AM PDT     Moonrise
Sat -- 01:26 PM PDT     -0.88 feet Low Tide
Sat -- 05:57 PM PDT     3.78 feet High Tide
Sat -- 08:51 PM PDT     Sunset
Sat -- 11:01 PM PDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

Weather Map and Satellite Images
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Weather Map
IR Satellite Image from GEOS

GOES Local Image of PacificNorthwest    EDIT

Wind Forecast for Portland, OR (11,2,3,4)
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Ground Weather Radar Station Portland, OR
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weather_mapweather_map weather_map

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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 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 numerious of sources and is presented automatically. It is not checked for accuracy either by anyone at 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.