Saturday, June24, 2017 L-36.com


Marine Weather and Tides
Maywood Park, OR

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 5:20AMSunset 9:05PM Saturday June 24, 2017 6:47 AM PDT (13:47 UTC) Moonrise 5:16AMMoonset 8:39PM Illumination 0% Phase: New Moon; Moon at 0 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- 510 Am Pdt Sat Jun 24 2017
.small craft advisory for rough columbia river bar in effect until 7 am pdt this morning...
In the main channel..Combined seas 3 to 4 ft through early Sun morning. However, seas will temporarily build to near 7 ft with breakers during the very strong ebb around 530 am this morning. Seas to 5 ft can be expected during the weaker ebb around 6 pm Sat evening.
PZZ200 510 Am Pdt Sat Jun 24 2017
Synopsis for southern washington and northern oregon coast.. High pres will remain over the ne pac for the next several days. A surface thermal trough along the coastline remains nearly stationary today. A south wind flow reversal develops over the far south waters early Sat evening and then spreads north Sat night and Sun.

7 Day Forecast for Marine Location Near Maywood Park, OR
   Hourly   EDIT   Help
location: 45.6, -122.55     debug


Area Discussion for - Portland, OR
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxus66 kpqr 241311 aaa
afdpqr
area forecast discussion
national weather service portland or
611 am pdt Sat jun 24 2017

Synopsis High pressure over the pacific northwest will bring
unseasonably hot to even record breaking temperatures across
northwestern oregon and southwestern washington Saturday and Sunday.

A marine push should result in cooler temperatures beginning late
Sunday and Monday. Dry northwesterly flow sets up next week across
the region, bringing more seasonable temperatures and a pattern of
morning clouds and afternoon sunshine.

Short term Sunday through Tuesday... Rather strong upper level high
pressure will remain and slide across the pacific northwest this
weekend, supporting the warmest temperatures so far this season
across northwestern oregon and southwestern washington. Some of the
coastal sites - primarily tillamook and points north - will be in the
neighborhood of 90 degrees f, while stations across the interior
lowlands may reach or eclipse the century mark. Not much change to
the maximum temperature forecast for the weekend with this update, as
forecast models still supporting maximum temperatures around 100
degrees f. The 00z ksle sounding came in with an 850mb temperature of
~20c, which is slightly warmer than forecast by the models in recent
cycles (particularly the GEFS ensemble members). This certainly gives
credence to the idea that 850mb temperatures will warm further as we
move into tomorrow and rise to at least 22c for kpdx and ~23-25c
farther south towards ksle and keug. As thermal low pressure shifts
towards the coast and even slightly offshore
overnight, winds across the region should take on a more easterly
component. This should aid in the low level atmosphere mixing out to
the aforementioned warm temperatures aloft at 850mb on Saturday. This
would seem to support high temperatures approaching 100f for the pdx
metro and likely closer to 101-103f for the mid-valley and south
through eugene. Air over eastern oregon and the columbia river gorge
will be slightly cooler than the air residing over western oregon so
temperatures should be slightly cooler near and within the columbia
river gorge on Saturday. As a result, continued the trend of keeping
the warmest temperatures in the pdx metro towards downtown and points
west and south. Offshore winds will likely allow
temperatures to warm rapidly Saturday morning along the coast, with
many spots likely approaching 90f. There is some possibility that a
few sites - such as tillamook, for example - could exceed 90f by
quite a bit, but confidence in this occurring is low. In addition,
areas towards newport, waldport and florence appear less likely to
keep enough of an east wind to warm up to near 90f so kept high
temperatures cooler in these locations.

No changes to the existing advisories and warnings at this time, as
the relatively dry air mass and at least some reasonable overnight
relief as temperatures drop off should prevent more widespread
issues. As discussed in the previous discussion, the excessive heat
warning for the western columbia river gorge is due to the
combination of high temperatures and warm low temperatures Saturday
night, where many areas within this zone will likely have a
hard time dropping below 65-70f. Such warm low temperatures greatly
increase the risk of heat related illness and stress, especially for
those without air conditioning.

Some locations in the portland metro area closer to the gorge - i.E.,
those spots in near troutdale & gresham - will likely keep sufficient
east wind Saturday night to prevent temperatures from cooling down
much below 65 degrees f. Also, some of the higher hills in the N the
willamette valley such as mt scott, the west hills, bald
peak chehalem mountain on the yamhill washington county line and the
salem hills will likely remain within the thermal belt and remain
considerably warmer than nearby adjacent valley bottoms. In fact,
would not be surprised to see some of these sites also only bottom
out near 70f Saturday night despite the dry air in place. While this
detail has been incorporated into the forecast grids, agree with the
assessment of previous shifts that the localized areas in each of the
zones make it appropriate to maintain the current heat advisories in
place as opposed to upgrading the entire zones to excessive heat
warnings.

Sunday still looks on track to be a transition day as a southerly
wind reversal works its way up the coast. It is already off the far
southern oregon coast, a bit ahead of schedule, and is projected to
push onto the central oregon coast by late Saturday afternoon or
evening and eventually onto the north oregon coast either Saturday
night or early Sunday. As a result, slightly lowered temperatures
along the central oregon coast and coast range where it's looking
increasingly likely more likely the cooler marine air will exert its
influence. Enough marine air may also trickle into the willamette
valley that temperatures could end up a bit cooler than the current
forecast, especially near and south of corvallis albany. Regardless,
there is high confidence thermal low pressure will shift east of the
cascades Sunday night and result in the entire forecast area cooling
considerably by Monday.

Finally, a weak upper level impulse lifting northeastward into
northern california and oregon late Sunday night and Monday will help
to destabilize the atmosphere is it brushes our southern cwa. At this
point, it appears there is a chance of thunderstorms grazing
primarily the lane and linn county cascades. The current forecast
captures this well for now, but a subtle track in the synoptic
situation could very well either keep thunderstorm activity entire
clear of the forecast area or alternatively bring activity to a much
larger portion of the late Sunday night and Monday. Will need to
monitor the evolution of this feature as it approaches the region.

Cullen

Long term Tuesday night through Saturday... Forecast models remain
in decent agreement for the start of the extended period. Lower-level
onshore flow will continue through at least the mid-week period as a
broad upper level trough moves through the pacific northwest. Expect
temperatures closer to seasonal norms Wednesday. However, maintained
a slight warming trend for the second half of next week along with a
dry forecast, as heights rise and the air mass warms a bit in
response to an upper level trough building over the region. Cullen

Aviation Vfr skc across the forecast area through early sun
morning. Thermally-induced surface low pressure along the coast
at 12z remains nearly stationary through the afternoon. Ifr
stratus expected to reach k6s2 between 00z and 06z Sunday and
then spread north to around ktmk between 06z and 12z.

Kpdx and approaches...VFR through early Sunday morning. East wind
develops at the terminal around 18z sat, but near or shortly
after sunrise at kttd. Gusts 25-35 kt at the west end of the
columbia gorge Saturday through early Sunday morning. Weishaar

Marine High pressure to remain over the NE pacific for the
next several days. A thermally-induced surface trough resides
along the coast from northern california to the south washington
coast early this morning. The thermal trough remains in place
today, which will result in gusty N to NE wind over the waters.

Outer waters to see small craft advisory wind speeds develop once
again late this morning and continue through late Saturday
evening. A south to southwest flow reversal begins over the far
south waters early this evening and then spreads north Saturday
night and Sunday morning.

General surface high pres will reside over the waters Mon through
at least next week, with periods of small craft advisory level
wind speeds.

Uni-wave conditions continue through the weekend, with a dominant
fresh swell and little to no background longer-period swell. Will
extend the small craft advisory for hazardous seas in pzz275
through 12z this morning. All in all, seas will generally be 4 to
6 ft today through much of next week. However, sea conditions
will remain steep and choppy due to the pre-dominant wind-wave
component. Weishaar

Pqr watches warnings advisories
Or... Excessive heat warning from noon today to 9 pm pdt Sunday for
western columbia river gorge.

Heat advisory from noon today to 9 pm pdt Sunday for cascade
foothills in lane county-central columbia river gorge-
central willamette valley-greater portland metro area-
lower columbia-northern oregon cascade foothills.

Heat advisory from noon today to 9 pm pdt this evening for
central coast range of western oregon-coast range of
northwest oregon-south willamette valley.

Wa... Excessive heat warning from noon today to 9 pm pdt Sunday for
western columbia river gorge.

Heat advisory from noon today to 9 pm pdt Sunday for central
columbia river gorge-greater vancouver area-i-5 corridor
in cowlitz county-south washington cascade foothills.

Heat advisory from noon today to 9 pm pdt this evening for
willapa hills.

Pz... Small craft advisory for winds from 11 am this morning to 11 pm
pdt this evening for waters from CAPE shoalwater wa to
florence or from 10 to 60 nm.

Small craft advisory for rough columbia river bar until 7 am
pdt this morning.

Interact with us via social media:


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 41 mi47 min 62°F1019 hPa (+0.0)
TLBO3 - 9437540 - Garibaldi, Tillamook Bay, OR 73 mi47 min 54°F1016.3 hPa (-0.0)
ASTO3 - 9439040 - Astoria, OR 77 mi47 min NNW 2.9 G 7 66°F 65°F1017.7 hPa (+0.0)

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
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Portland, Portland International Airport, OR3 mi54 minW 310.00 miFair61°F50°F67%1017.7 hPa
Pearson Airfield, WA6 mi54 minN 010.00 miFair56°F48°F77%1017.7 hPa
Portland, Portland-Troutdale Airport, OR9 mi54 minN 010.00 miFair58°F54°F87%1017.5 hPa
Scappoose Industrial Airpark, OR20 mi54 minN 010.00 miFair57°F50°F78%1017.6 hPa
Portland-Hillsboro Airport, OR22 mi54 minN 010.00 miFair58°F48°F72%1016.9 hPa

Wind History from PDX (wind in knots)
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
9
PM
10
PM
11
PM
12
AM
1
AM
2
AM
3
AM
4
AM
5
AM
6
AM
Last 24hrNW4NW4N54NW8W10NW10NW95NW9NW14N8N10
G17
NW6N5W5W5W5W5W4W4W3CalmW3
1 day agoNW5N4NW4N3W8NW8NW11
G15
NW10NW11NW12NW13N9
G17
NW12
G19
NW11
G20
NW12NW10
G17
NW12NW8NW5NW6NW6NW3N3N3
2 days agoNW6NW9NW8
G16
N6NW9NW11NW9
G16
W9NW10
G18
N9N5NW14
G20
NW15
G18
NW15NW9NW11
G21
NW10NW9
G16
NW9NW10NW3NW4N3N4

Tide / Current Tables for Ellsworth, Washington - IGNORE HEIGHTS
   EDIT   RT Ports Option   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Ellsworth
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 -- 03:39 AM PDT     2.19 feet Low Tide
Sat -- 05:21 AM PDT     Sunrise
Sat -- 06:15 AM PDT     Moonrise
Sat -- 07:40 AM PDT     9.84 feet High Tide
Sat -- 04:43 PM PDT     -1.87 feet Low Tide
Sat -- 09:03 PM PDT     Sunset
Sat -- 09:15 PM PDT     7.77 feet High Tide
Sat -- 09:39 PM PDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
4.73.72.82.32.34.179.39.89.27.96.14.22.20.5-0.8-1.7-1.8-03.16.17.77.66.9

Tide / Current Tables for Vancouver, Washington - IGNORE HEIGHTS
   EDIT      (on/off)   Help   One Week of Data
Vancouver
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 -- 03:14 AM PDT     2.19 feet Low Tide
Sat -- 05:22 AM PDT     Sunrise
Sat -- 06:16 AM PDT     Moonrise
Sat -- 07:14 AM PDT     9.84 feet High Tide
Sat -- 04:18 PM PDT     -1.87 feet Low Tide
Sat -- 08:49 PM PDT     7.77 feet High Tide
Sat -- 09:03 PM PDT     Sunset
Sat -- 09:39 PM PDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
4.33.32.62.22.85.38.29.89.68.77.25.33.31.5-0.1-1.3-1.8-1.31.24.477.87.46.5

Weather Map and Satellite Images
       (on/off)   Help
Weather Map
wmap_P
IR Satellite Image from GEOS
west_satellite

GOES Local Image of PacificNorthwest    EDIT
Geos

Wind Forecast for Portland, OR (9,2,3,4)
      (on/off)   Help

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

Ad by Google

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.