Tuesday, March28, 2017 L-36.com

Marine Weather and Tides
Netarts, OR

Version 3.4
What's New / NOTES
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.
3/12/2015 - Added section for Gulf current for users in the GMZ marine zones.
This was requested by a user. If you have requests, please let me know.

Sunrise 6:56AMSunset 7:38PM Tuesday March 28, 2017 8:53 AM PDT (15:53 UTC) Moonrise 6:40AMMoonset 7:39PM Illumination 1% Phase: Waxing Crescent; Moon at 1 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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PZZ250 Coastal Waters From Cape Shoalwater Wa To Cascade Head Or Out 10 Nm- Waters From Cape Shoalwater Wa To Cascade Head Or From 10 To 60 Nm- 817 Am Pdt Tue Mar 28 2017
.gale warning in effect from this evening through Wednesday morning...
Today..S wind 20 to 25 kt with gusts to 30 kt. Wind waves S 6 ft at 8 seconds. W swell 10 ft at 16 seconds. SEcondary swell W 8 ft at 11 seconds. Occasional rain.
Tonight..S wind 20 to 25 kt with gusts to 35 kt. Combined seas 15 ft dominant period 16 seconds. Rain.
Wed..SW wind 20 to 25 kt with gusts to 35 kt in the morning...easing to 15 to 20 kt in the early afternoon. Wind waves sw 5 ft at 7 seconds. W swell 11 ft at 15 seconds. Rain in the morning...then showers likely in the afternoon.
Wed night..NW wind 10 to 15 kt with gusts to 20 kt. Wind waves nw 3 ft at 5 seconds. W swell 11 ft at 13 seconds... Subsiding to 9 ft at 13 seconds after midnight. Chance of showers.
Thu..NW wind 15 to 20 kt. Wind waves nw 3 ft at 6 seconds. W swell 8 ft at 13 seconds. Chance of showers.
Thu night..NW wind 10 to 15 kt...easing to 5 to 10 kt after midnight. Gusts to 20 kt. Wind waves nw 2 ft at 5 seconds. W swell 8 ft at 15 seconds.
Fri..SW wind 5 to 10 kt. Wind waves 2 ft. W swell 8 ft.
Sat..W wind 10 to 15 kt. Wind waves 3 ft. W swell 9 ft.
PZZ200 817 Am Pdt Tue Mar 28 2017
Synopsis for southern washington and northern oregon coast.. A warm front moves across the waters this morning before a cold front slowly moves through this afternoon through Wednesday morning. High pressure builds Wednesday night through Thursday night then holds over the waters through Friday. A weak front will move across the waters Saturday morning.

7 Day Forecast for Marine Location Near Netarts, OR
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location: 45.43, -123.95     debug

Area Discussion for - Portland, OR
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Fxus66 kpqr 281517
area forecast discussion
national weather service portland or
817 am pdt Tue mar 28 2017

Synopsis A warm front approaching wa and northern or will
bring increasing chances for rain to the region today and tonight. A
cold front will move SE through or wed, turning rain into showers
wed and Wed night. Showers will continue through thu, but drier
weather is in store for Fri as a ridge of high pres moves across.

Short term (today through Thursday)..

Occasional light rain over the northern zones today, especially north
of tillamook and over the coast and coast mountains. Will boost pops
for those area a bit more for today. Also, bit better threat of light
rain inland today, but will keep lowlands in 40 to 50 percent chance

Only other change is to boost QPF for tonight and into wed. This
mainly due to decent precipitable water plume, of 1.0 to 1.3 inches
offshore aimed at region for later today and tonight. So, seems like
good rainfall for a bit, with 1 to 3 inches tonight and Wed for the
coast mountains, and generally half to locally 1 inch for interior
lowlands. Otherwise, wet night and generally wet Wed on tap.

Previous discussion as follows: a surface ridge of high pres
over western oregon early this morning is expected to shift into
southern oregon today and tonight. This will eventually deepen the
onshore flow and moisture over the region. A warm front is expected
to approach the region late tonight as a low pres center heads up
towards vancouver island Wed morning. Isentropic lift will increase
and lower ahead of the warm front. Today, the moist isentropic lift
will tend to be weak and primarily confined to mid levels. Prefer to
keep some mention of light precipitation over all but the far
southern part of the forecast area given the current distribution
of light rain over the area and the weak lift. Tonight pops quickly
increase to categorical as models develop stronger moist isentropic
lift with a strengthened SW flow on the order of 40 to 50 kt along
the 290k isentrope just a few thousand feet msl. With plenty of
clouds and the approach of the warm front, temps should remain mild
tonight with snow levels rising well above cascade passes by wed

Models agree on dragging the trailing cold front SE through the
forecast area Wed and Wed evening. With deep moisture preceding the
front chances for rain will remain categorical Wed morning, then
remain high across the south part of the area Wed afternoon and
evening as the baroclinic zone may be a little slow to clear the
region as the front becomes closer to parallel with the upper flow.

Behind the front a cooler air mass moves in, with the cold upper
trough moving through late Wed night into Thu morning. Expect
showers to become more orographically favored once the upper trough
passes Thu morning.

Long term (thu night through Monday)... No changes. Previous
discussion follows. Model agreement is better through Fri and sat,
with a more progressive pattern over the region. Models continue to
show ridging over the region by fri, with dry and mild temperatures.

Still differences in the models, but will maintain dry weather into
sat. But, will trend back to some chance of showers for Sat night
and Sun as will see another front shift across the region at that
time. With the progressive pattern, will see fronts moving across
the region about every 2 days. So, after Sunday, will transition to
another decreasing shower day on Monday, with potentially another
dry day or two to start next week. However, since it is spring and
mother nature can get feisty at times, will keep some mention of
showers to start next week. /mh rockey.

Aviation A warm front moving onshore this morning will bring
light rain or drizzle and a mix ofVFR and MVFR to SW washington
and far NW oregon this morning. There may be brief improvement to
vfr for inland locations as the warm front lifts north between
16 and 18z. However, an approaching cold front will continue a
mix of MVFR CIGS for coastal areas. The trailing cold front will
move NW to SE across the area late tonight into Wed morning for
rain and widespread MVFR conditions. Gusty south winds will
persist at coastal tafs through tonight.

Kpdx and approaches... Light rain or drizzle and occasional MVFR
cigs expected through around 15z as a warm front moves north of
the area. Conditions should improve toVFR after 16z. Rain will
increase again between 06z-12z Wednesday and MVFR CIGS will
return. ~tj

Marine A warm front is moving through the waters this morning.

The trailing cold front will move into the waters north of
cascade head early this afternoon... And south of cascade head
late this afternoon. A low moving along the front will stall the
front over the waters tonight and early Wednesday morning before
the front moves onshore early Wednesday afternoon. South winds
will increase as the low nears the waters with gale force gusts
expected late this evening through early Wednesday morning. Have
upgraded the gale watch to a gale warning. The winds will turn
westerly and subside behind the front on Wednesday.

The seas are a combination of two west swell trains today... One
at 18 seconds and the other around 12 seconds. The longer period
swell will become the dominant wave train by Wednesday morning.

Steep wind waves will contribute to the mixed seas in response to
the increasing winds. Combined seas are expected to build to
around 15 ft tonight.

High pressure will build Wednesday night and Thursday and hold
through Friday for northwest winds and subsiding seas. Seas
subside below 10 ft on Thursday then remain between 5 and 7 feet
through Saturday. ~tj

Pqr watches/warnings/advisories
Or... None.

Wa... None.

Pz... Small craft advisory for winds until 10 pm pdt this evening for
coastal waters from CAPE shoalwater wa to florence or out
60 nm.

Gale warning from 10 pm this evening to 7 am pdt Wednesday for
coastal waters from CAPE shoalwater wa to florence or out
60 nm.

Small craft advisory for hazardous seas until 10 pm pdt this
evening for coastal waters from CAPE shoalwater wa to
florence or out 60 nm.

Small craft advisory for rough columbia river bar until 9 am
pdt Wednesday.

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Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
TLBO3 - 9437540 - Garibaldi, Tillamook Bay, OR 9 mi53 min 50°F1025.5 hPa (+0.0)
ASTO3 - 9439040 - Astoria, OR 55 mi53 min S 8.9 G 13 49°F 46°F1023.7 hPa (-0.4)
46243 - Clatsop Spit, OR - 162 55 mi53 min 48°F11 ft

Wind History for Garibaldi, OR
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1 day
2 days

Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Tillamook, Tillamook Airport, OR7 mi58 minSSE 910.00 miOvercast48°F44°F87%1026.1 hPa

Wind History from TMK (wind in knots)
Last 24hrS3SE4S8SW11SW12SW9S11
1 day agoCalmE3E4E3SE4SE6S6SW9
2 days agoS3S5S5E3CalmSW6SW8SW6SW6S4SE3CalmCalmCalmE4CalmE3E5CalmCalmCalmE3E4E3

Tide / Current Tables for Netarts, Netarts Bay, Oregon
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Tue -- 01:42 AM PDT     6.84 feet High Tide
Tue -- 07:02 AM PDT     Sunrise
Tue -- 07:40 AM PDT     Moonrise
Tue -- 08:13 AM PDT     0.21 feet Low Tide
Tue -- 01:59 PM PDT     6.73 feet High Tide
Tue -- 07:39 PM PDT     Sunset
Tue -- 08:27 PM PDT     0.22 feet Low Tide
Tue -- 08:37 PM PDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

Tide / Current Tables for Tillamook, Hoquarten Slough, Tillamook Bay, Oregon
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Tue -- 02:17 AM PDT     6.57 feet High Tide
Tue -- 07:02 AM PDT     Sunrise
Tue -- 07:40 AM PDT     Moonrise
Tue -- 09:50 AM PDT     0.14 feet Low Tide
Tue -- 02:34 PM PDT     6.46 feet High Tide
Tue -- 07:38 PM PDT     Sunset
Tue -- 08:37 PM PDT     Moonset
Tue -- 10:04 PM PDT     0.15 feet Low Tide
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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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.