Sunday, April22, 2018 L-36.com


Marine Weather and Tides
Salem, 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 6:12AMSunset 8:08PM Sunday April 22, 2018 2:35 PM PDT (21:35 UTC) Moonrise 11:02AMMoonset 1:22AM Illumination 50% 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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PZZ255 Coastal Waters From Cascade Head To Florence Or Out 10 Nm- Waters From Cascade Head To Florence Or From 10 To 60 Nm- 231 Am Pdt Sun Apr 22 2018
.small craft advisory for winds in effect through late tonight...
.small craft advisory for hazardous seas in effect through this evening...
Today..N wind 15 to 20 kt. Gusts to 25 kt. Wind waves N 6 ft at 6 seconds. W swell 6 ft at 12 seconds.
Tonight..N wind 15 to 20 kt. Gusts to 25 kt in the evening. Wind waves N 5 ft at 6 seconds. W swell 6 ft at 13 seconds.
Mon..N wind 10 to 15 kt with gusts to 20 kt. Wind waves N 3 ft at 5 seconds. W swell 4 ft at 12 seconds.
Mon night..N wind 10 to 15 kt with gusts to 20 kt. Wind waves N 3 ft at 5 seconds. W swell 4 ft at 11 seconds. SEcondary swell W 4 ft at 17 seconds.
Tue..N wind 10 to 15 kt. Wind waves N 3 ft at 4 seconds. W swell 9 ft at 15 seconds.
Tue night..N wind 10 to 15 kt. Wind waves N 3 ft at 4 seconds. W swell 8 ft at 15 seconds.
Wed..N wind 10 to 15 kt. Wind waves 3 ft. W swell 7 ft.
Thu..S wind 5 to 10 kt. Wind waves 3 ft. NW swell 6 ft.
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 Salem, OR
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location: 44.91, -123.05     debug


Area Discussion for - Portland, OR
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Fxus66 kpqr 222022
afdpqr
area forecast discussion
national weather service portland or
125 pm 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 Tonight through Wednesday... Expect dry conditons
through midweek as an upper level ridge slowly moves across the
region. Low level flow will turn offshore tonight as a thermal
induced trough builds north just off the coast. Models tend to show
the trough shifting onto the coast during the afternoon mon, and a
little inland during the late day Tue and wed. Temps inland will
warm into the 70s Mon as 850 mb temps warm to around 8 to 12c, then
are likely to top 80 at many interior locations Tue and Wed as 850
mb temps warm to 14c Tue and 16c wed. At the coast, the offshore
breezes early in the day should allow for a quick warm up each day,
but as winds turn back onshore sometime in the afternoon, expect to
see the diurnal temps rise cut off. Of course timing for this is
critical to hitting the high temp forecasts, and right now it
appears in general the southern parts of the coast are likely to see
the temps cut off earlier, likely limiting highs there to the 60s,
with 70s more likely along the north part of the coast.

Long term Wednesday night through Sunday... The general idea of
the cutoff low off the north ca coast slowly approaching the coast
late in the week suggests some moisture spreading north in the
southerly flow aloft for increasing chances of showers beginning
late Thu or Thu night. The pattern with a SE flow aloft can also
suggest the possibility for thunderstoms, particularly over the
cascades, but for now will leave out the mention as GFS soundings
not indicating sufficuent instability. Temps will be cooling back
down closer to normal as onshore flow resumes. While models begin to
show more significant differences by the weekend, the net result is
still plnety of clouds, chances for showers, and seasonable temps.

Aviation Vfr conditions to dominate for the next 24 hours.

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

Kpdx and approaches...VFR conditions continue to dominate. Will
maintainVFR for the next 24 hours. Northwest to north wind gusts
approaching 20 kt for a few hours centered around 22 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 late this 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 look to turn offshore on Monday and Tuesday, 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 this week with seas
likely remaining under 10 ft.

Small craft advisory level winds, could return towards the
weekend, as a front moves into the north oregon and south
washington waters. Mh 42

Pqr watches warnings advisories
Or... None.

Wa... None.

Pz... Small craft advisory for winds until 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
SBEO3 - 9435380 - South Beach, OR 56 mi48 min NNW 11 G 19 52°F 54°F1026.3 hPa
NWPO3 - Newport, OR 58 mi36 min NNW 19 G 22 50°F 1026.4 hPa (-1.2)
TLBO3 - 9437540 - Garibaldi, Tillamook Bay, OR 64 mi48 min 53°F

Wind History for South Beach, Yaquina River, OR
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Salem - McNary Field, OR2 mi40 minN 710.00 miFair60°F39°F46%1025.5 hPa
McMinnville, McMinnville Municipal Airport, OR20 mi43 minN 710.00 miFair61°F35°F38%1025.5 hPa

Wind History from SLE (wind in knots)
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Last 24hrNW76N10NE9N9N8N12N8N7N7N6N5N5N7N5CalmN4NW4NE8N8N9N9N10
G18
N7
1 day agoSW6SW6S75W7W7W10SW5SW10SW10SW11S6S6S6S8W3W4CalmNW3NW6N7W6CalmN8
2 days agoN66CalmN7NW8W6NW6N3CalmSE4CalmCalmCalmCalmCalmCalmCalmCalmCalmSE5E4N3NW7Calm

Tide / Current Tables for Portland, Morrison Street Bridge, Oregon
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Portland
Click for Map
Sun -- 02:22 AM PDT     Moonset
Sun -- 05:15 AM PDT     1.78 feet Low Tide
Sun -- 06:12 AM PDT     Sunrise
Sun -- 10:33 AM PDT     4.30 feet High Tide
Sun -- 11:58 AM PDT     Moonrise
Sun -- 02:46 PM PDT     First Quarter
Sun -- 07:44 PM PDT     1.68 feet Low Tide
Sun -- 08:06 PM PDT     Sunset
Sun -- 11:55 PM PDT     3.21 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
32.82.62.321.81.92.22.93.64.24.23.83.22.92.72.52.321.81.722.53

Tide / Current Tables for Portland, Willamette River, Oregon - IGNORE HEIGHTS
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Portland
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 -- 12:31 AM PDT     6.90 feet High Tide
Sun -- 02:22 AM PDT     Moonset
Sun -- 06:12 AM PDT     Sunrise
Sun -- 08:21 AM PDT     3.09 feet Low Tide
Sun -- 11:35 AM PDT     8.20 feet High Tide
Sun -- 11:58 AM PDT     Moonrise
Sun -- 02:46 PM PDT     First Quarter
Sun -- 08:06 PM PDT     Sunset
Sun -- 09:28 PM PDT     0.12 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
6.66.96.55.95.24.43.83.33.13.55.87.88.27.875.94.63.32.11.20.50.20.42.2

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 (17,4,5,8)
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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.