Sunday, April22, 2018 L-36.com


Marine Weather and Tides
Rainier, OR

Version 3.4
What's New / NOTES
3/3/2018 - There is a new GOES Satellite for the east coast that required rewriting that part of the code. Please report any issues.
6/25/2017 - NOAA is having a major issue that impact the 7 day forecast load times. Many users are reporting problems. The issue has been reported.
5/23/2017 - Worked with NOAA again to speed up the 7 day forecast load times. Thanks to them for being responsive.

Sunrise 6:09AMSunset 8:10PM Sunday April 22, 2018 11:16 AM PDT (18:16 UTC) Moonrise 10:58AMMoonset 1:25AM Illumination 49% Phase: First Quarter Moon; Moon at 7 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- 231 Am Pdt Sun Apr 22 2018
In the main channel..Combined seas 5 to 7 ft easing to 3 to 5 ft Sunday evening. However, seas will temporarily build to near 8 ft during the ebb around 1030 am Sunday, 7 ft during the ebb around 1145 pm Sunday and 6 ft during the ebb around noon Monday.
PZZ200 231 Am Pdt Sun Apr 22 2018
Synopsis for southern washington and northern oregon coast.. Thermal low pressure along the coast will continue through tonight then shift over the waters Mon. The summer-like northerly wind will shift to northeasterly Mon.

7 Day Forecast for Marine Location Near Rainier, OR
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location: 46.1, -122.95     debug


Area Discussion for - Portland, OR
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Fxus66 kpqr 221641
afdpqr
area forecast discussion
national weather service portland or
940 am pdt Sun apr 22 2018

Synopsis High pressure over the region will maintain dry
conditions, with mostly clear skies. Will see warming temperatures,
with afternoon highs quite a bit above normal for Mon through thu.

Cooler air with return of shower threat by end of the week through
next weekend.

Short term Today through Wednesday... Thin high clouds will move
over SW washington and NW oregon this morning as an upper level
trough moves over the pacific nw. Clear skies this afternoon will
lead to inland temperatures warming into the mid to upper 60s.

Building high pressure will continue dry weather the next few days. A
thermal trough develops along the coast Monday morning and remains
through here until it slowly moves over the willamette valley Tuesday
and Wednesday. This will produce offshore winds, keep skies mostly
clear, and warm temperatures into the 70s on Monday, and 80s Tuesday
and Wednesday. Coastal regions will be warm too, with temperatures
likely peaking in the 70s. ~tj

Long term No changes. Previous discussion follows... Wednesday
night through Friday... High pres with warm dry air mass sits over
region through thu. Upper low will very slowly drift towards the
region from the southwest later Thu and fri. This will allow for some
cooling later Thu along the coast, and inland on fri. Could see a few
showers develop over the higher terrain, and with mid levels winds
out of the southeast, these would drift west-northwestward. Too
early, but could get a few thunderstorms coming off the cascades on
fri if pattern holds. Rockey

Aviation Vfr conditions to remain for the next 24 hours.

Winds gusting around 20-30 kt this afternoon at the coast and
around 20 kt inland.

Kpdx and approaches...VFR conditions continue to remain. Will
maintainVFR for the next 24 hours. Northwest to north wind
gusts approaching 20 kt for a few hours centered around 23 00z.

Mh jbonk

Marine Thermal low pressure over northern california will
continue along the oregon coast through Monday. This will be a
typical summertime northerly wind pattern that will bring gusty
winds across the waters. Small craft advisory level wind gusts
of 25 kt will continue across the central oregon waters. These
winds will likely push further north into the northern waters,
mainly south of CAPE meares, but could reach as far north as the
columbia river mouth Sunday afternoon and evening. The persistent
northerly winds will generate choppy seas, therefore a small
craft advisory hazardous seas is in effect through this evening
for the central coast zones.

Winds should turn offshore for a day or two early next week with
wind gusts of 20 to 25 kt possible near the coastal gaps such as
the mouth of the columbia river. A southerly wind reversal may
develop towards the middle to latter half of next week with seas
likely remaining under 10 ft for the next week. Mh 42

Pqr watches warnings advisories
Or... None.

Wa... None.

Pz... Small craft advisory for winds from 2 pm this afternoon to 9 pm
pdt this evening for coastal waters from CAPE shoalwater
wa to cascade head or out 60 nm.

Small craft advisory for winds until 3 am pdt Monday for
coastal waters from cascade head or to florence or out 60
nm.

Small craft advisory for hazardous seas until 11 pm pdt this
evening for coastal waters from cascade head or to
florence or out 60 nm.

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Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
LOPW1 - 9440422 - Longview, WA 0 mi46 min 50°F1028.7 hPa
ASTO3 - 9439040 - Astoria, OR 44 mi46 min NW 2.9 G 2.9 48°F 50°F1028.6 hPa
46243 - Clatsop Spit, OR - 162 63 mi46 min 51°F6 ft

Wind History for Longview, WA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Southwest Washington Regional Airport, WA3 mi20 minNNW 9 G 1610.00 miFair53°F37°F55%1029 hPa
Scappoose Industrial Airpark, OR23 mi23 minNNE 13 G 1910.00 miFair55°F35°F47%1027.5 hPa

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Last 24hrW5W5W8W7NW9W6NW7W7W8W4CalmCalmCalmCalmCalmCalmNW3NW3N3N3NW6N8N7N9
G16
1 day agoS6S7SE53W4CalmNW4NW5NW4CalmCalmE3CalmCalmCalmS44CalmW4NE3N3N46W10
2 days ago5SW4SW5CalmW6W7W7W83W5CalmN3CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmSE5S7

Tide / Current Tables for Longview, Washington - IGNORE HEIGHTS
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Longview
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

Sun -- 02:25 AM PDT     Moonset
Sun -- 04:58 AM PDT     3.09 feet Low Tide
Sun -- 06:12 AM PDT     Sunrise
Sun -- 08:57 AM PDT     8.20 feet High Tide
Sun -- 11:57 AM PDT     Moonrise
Sun -- 02:46 PM PDT     First Quarter
Sun -- 06:05 PM PDT     0.12 feet Low Tide
Sun -- 08:08 PM PDT     Sunset
Sun -- 11:03 PM PDT     6.93 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
65.24.43.73.33.13.95.87.68.27.97.264.63.2210.40.10.72.44.46.26.9

Tide / Current Tables for Kalama, Washington - IGNORE HEIGHTS
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Kalama
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

Sun -- 02:24 AM PDT     Moonset
Sun -- 05:39 AM PDT     3.09 feet Low Tide
Sun -- 06:12 AM PDT     Sunrise
Sun -- 09:24 AM PDT     8.20 feet High Tide
Sun -- 11:57 AM PDT     Moonrise
Sun -- 02:46 PM PDT     First Quarter
Sun -- 06:46 PM PDT     0.12 feet Low Tide
Sun -- 08:08 PM PDT     Sunset
Sun -- 11:30 PM PDT     6.93 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
6.45.74.84.13.53.23.24.56.78.18.17.66.75.442.71.60.80.30.21.23.35.36.7

Weather Map and Satellite Images
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wmap_P
GOES 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.
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Wind Forecast for Portland, OR (14,3,4,5)
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Ground Weather Radar Station Portland, OR
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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 numerious 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.