Wednesday, March29, 2017 L-36.com


Marine Weather and Tides
Eugene, 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 7:37PM Tuesday March 28, 2017 10:25 PM PDT (05:25 UTC) Moonrise 6:38AMMoonset 7:34PM Illumination 3% 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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PZZ255 Coastal Waters From Cascade Head To Florence Or Out 10 Nm- Waters From Cascade Head To Florence Or From 10 To 60 Nm- 832 Pm Pdt Tue Mar 28 2017
.gale warning in effect until 7 am pdt Wednesday...
Tonight..S wind 20 to 25 kt. Wind rising to 25 to 30 kt with gusts to 35 kt by midnight. Gusts to 40 kt late. Combined seas 16 ft dominant period 16 seconds.
Wed..SW wind 25 to 30 kt with gusts to 35 kt. Wind easing to 15 to 20 kt with gusts to 25 kt in the afternoon. Combined seas 15 ft dominant period 15 seconds.
Wed night..W wind 15 to 20 kt with gusts to 25 kt. Wind waves W 4 ft at 5 seconds. W swell 9 ft at 14 seconds.
Thu..NW wind 15 to 20 kt with gusts to 25 kt. Wind easing to 10 to 15 kt in the afternoon. Wind waves nw 4 ft at 6 seconds. W swell 8 ft at 13 seconds.
Thu night..NW wind 10 to 15 kt...becoming N 5 to 10 kt after midnight. Wind waves N 2 ft at 4 seconds. W swell 7 ft at 14 seconds.
Fri..N wind 5 to 10 kt. Wind waves 1 ft. W swell 7 ft.
Fri night..NW wind 5 to 10 kt. Wind waves 2 ft. W swell 6 ft.
Sat..W wind 5 to 10 kt. Wind waves 2 ft. W swell 8 ft.
Sun..N wind 15 to 20 kt. Wind waves 4 ft. W swell 13 ft.
PZZ200 832 Pm Pdt Tue Mar 28 2017
Synopsis for southern washington and northern oregon coast.. A low pres center well offshore this evening will strengthen and move ne to E tonight. The low is expected to move ashore near vancouver island Wed morning. A slow-moving frontal boundary will reside over the waters tonight through Wed morning. A secondary cold front moves through the waters Wed evening. High pres builds Wed night and Thu then holds over the waters Fri. A weak front will move across the waters Saturday morning.

7 Day Forecast for Marine Location Near Eugene, OR
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location: 44.06, -123.17     debug


Area Discussion for - Portland, OR
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Fxus66 kpqr 282126
afdpqr
area forecast discussion
national weather service portland or
226 pm pdt Tue mar 28 2017

Synopsis Rain increasing this evening as front slowly approaches
from the west. This front will ensure quite a rain night and most of
Wednesday. Then decreasing showers on Thursday. Still looks like a
nice and mild few days for Fri and sat, though will see increasing
clouds on sat. Rain threat, while not all that great, returns for sun
into early next week.

Short term (tonight through Friday)...

first, up, due to upgrade with our system, do not have a lot of model
data to look over for the afternoon package. But, even so, not much
has changed in the short term.

Warm front lies well north of the region this afternoon, leaving the
region under cloudy and generally dry conditions. Still have
occasional light rain along the coast and into the coast mountains,
mainly to north of tillamook. It is mild, with many areas well into
the 50s as of 2 pm.

Noaa satellite imagery shows rather broad baroclinic zone well
offshore, extending from vancouver island back to the southwest. This
zone will slowly shift south and east this evening, with rain
spreading across the coastal zones early this evening, and inland
afterwards. May have hard time getting much rain to far southeast
corner of the forecast area, such as eastern lane and linn counties.

So, will keep pops lowest in that area, but will see spotty rain even
in the area later tonight.

Should be a decent shot of rain, as morning models were showing a
juicy plume of moisture along and ahead of the baroclinic zone.

Precipitable water values 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. But snow
levels rising, up to around 7000 to 8000 feet for tonight and wed.

So far this fall/winter season, we have had two months with record or
near record rainfall (october and february). Now, with rain expected
over the next 36 hours, could add a third month.

Models agree on dragging the trailing cold front into the region on
wed am, so will transition to showers in the north zones. But,
another wave on the boundary will approach and move into southwest
oregon later Wed and Wed evening. Net effect will be to slow the
fronts eastward progression, hanging it up over lane and linn
counties at that time. So, will keep rain into early evening for that
area, then transition to showers late Wed evening once the front
moves east.

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. In fact, Thu likely to be lot like it was
yesterday, with mix of Sun and clouds, with decreasing threat of
showers.

Now, for last day of march, or Friday. Appears march will go out like
a lamb, under partly to mostly sunny skies and mild temperatures.

High pressure will bring lighter winds, and good deal of sunshine.

Temperatures in the 50s on the coast, with upper 50s to lower 60s
inland. If mother nature cooperates, could even get into the middle
60s from salem southward. rockey.

Long term (fri night through Tuesday)... No changes. Previous
discussion follows. Model agreement is better through sat,
with a more progressive pattern over the region. Models continue to
show ridging east of the region on Saturday. Still looks dry and mild
on Saturday, with just increasing mid and high clouds. Now, while
there are still differences in the models, will have to keep some
minor threat of showers in forecast for Sat night into early next
week.

Aviation MostlyVFR conditions across the region this
afternoon. CIGS will lower this evening along the coast and near
midnight in the willamette valley as a cold front nears and
steadier rain returns... With widespread MVFR conditions into
Wednesday morning. The coast may see occasional ifr conditions
late tonight. South winds could gust to around 30-35 kt along the
coast this evening through Wednesday morning, and to around 25-30
kt in the willamette valley.

Kpdx and approaches...VFR conditions this afternoon will
deteriorate to MVFR near midnight tonight with steady rain. S-se
winds may gust to 20-25kt late tonight into Wed morning. MVFR
cigs will likely persist most of wed. ~tj

Marine A low moving along an offshore front has stalled the
cold front just west of 60 nm this afternoon. South winds will
increase over the waters to gales as the low approaches this
evening and tonight. There will be an additional burst of strong
winds (gales) with the frontal passage early Wednesday morning.

Seas are a mix of a long-period (16-18 second)and a medium (12
second) period west swells... And steep south wind seas. Combined
seas are expected to build to around 15 ft tonight. Two strong
ebbs could result in breakers around 18 feet in the columbia
river bar this evening and Wednesday morning.

The winds will turn westerly and subside behind the front on
Wednesday. High pressure will build Wednesday night and Thursday
and hold through Friday for northwest winds and subsiding seas.

The seas will subside to below 10 ft on Thursday and 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
SBEO3 - 9435380 - South Beach, OR 61 mi38 min ESE 8 G 9.9 47°F 52°F1023.3 hPa
NWPO3 - Newport, OR 61 mi26 min ESE 6 G 9.9 46°F 1023 hPa (-1.7)
46229 - UMPQUA OFFSHORE, OR (139) 76 mi40 min 51°F11 ft

Wind History for South Beach, Yaquina River, OR
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Eugene, Mahlon Sweet Field, OR5 mi32 minSW 510.00 miLight Rain53°F45°F74%1023.5 hPa

Wind History from EUG (wind in knots)
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Last 24hrS7S7S6S4SE6S5S6SE7S6S6SE9S11S9SE11S11S8S12S13
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1 day agoS10SW6SW6S7SW5S9S6SW7S8S6S8S9SW8SW9SW9SW12SW8SW12W14
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Tide / Current Tables for Florence, Siuslaw River, Oregon
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Florence
Click for Map
Wed -- 02:22 AM PDT     6.92 feet High Tide
Wed -- 07:02 AM PDT     Sunrise
Wed -- 08:16 AM PDT     Moonrise
Wed -- 08:51 AM PDT     -0.16 feet Low Tide
Wed -- 02:53 PM PDT     6.40 feet High Tide
Wed -- 07:40 PM PDT     Sunset
Wed -- 08:59 PM PDT     0.52 feet Low Tide
Wed -- 09:51 PM PDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
4.76.16.96.85.94.42.71.20.1-0.10.41.73.456.16.45.94.83.41.90.90.512.1

Tide / Current Tables for Drift Creek, Alsea River, Oregon
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Drift Creek
Click for Map
Wed -- 02:20 AM PDT     6.87 feet High Tide
Wed -- 07:01 AM PDT     Sunrise
Wed -- 08:15 AM PDT     Moonrise
Wed -- 09:41 AM PDT     -0.15 feet Low Tide
Wed -- 02:50 PM PDT     6.41 feet High Tide
Wed -- 07:40 PM PDT     Sunset
Wed -- 09:50 PM PDT     0.36 feet Low Tide
Wed -- 09:51 PM PDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
4.15.86.86.764.93.41.90.70-0.10.92.74.666.465.13.82.51.30.60.41.2

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

GOES Local Image of PacificNorthwest    EDIT
Geos

Wind Forecast for Portland, OR (1,6,7,8)
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Ground Weather Radar Station Portland, OR
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weather_mapweather_map weather_map

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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.