Friday, September21, 2018 L-36.com


Marine Weather and Tides
Rouses Point, NY

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9/17/2018 XTide broke when 1and1 "upgraded" my server. It has been esculated. I am sorry for the problem.

Sunrise 6:39AMSunset 6:53PM Friday September 21, 2018 11:48 AM EDT (15:48 UTC) Moonrise 5:40PMMoonset 2:50AM Illumination 89% Phase: Waxing Gibbous; Moon at 12 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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7 Day Forecast for Marine Location Near Hood River, OR
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location: 45.71, -121.53     debug


Area Discussion for - Portland, OR
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Fxus66 kpqr 210959
afdpqr
area forecast discussion
national weather service portland or
258 am pdt Fri sep 21 2018

Synopsis An approaching front from the west will bring increasing
clouds today, with rain to the coast towards evening. This rain will
spread inland tonight. Showery Saturday on tap, but, sunny and dry
weather returns on Sunday. High pres will build over the pacnw next
week, with warm days but cool nights.

Short term Today through Sunday... Cold front is well offshore this
morning, but is approaching at a steady clip. Expect increasing
clouds today, especially this afternoon. Will be dry inland for most
of the day, and even along the coast until mid to late afternoon.

Models have been in fairly good agreement in depicting the rain along
the coast towards late afternoon. Rain will slowly spread into the
interior this evening, though think may not see much to east of south
of eugene until around or just after midnight. Have increased pops
for rain for tonight. With the main low heading into british
columbia, think that bulk of the precipitation will be shunted to our
north. Even so, would expect generally 0.25 to 0.50 inch over parts
of the north oregon coast range and willapa hills across to the south
washington cascades. Most of the interior lowlands generally getting
0.10 to 0.25 inch of rain, with less than 0.10 for areas to south and
east of eugene.

Front will push inland tonight, with rain decreasing late tonight, or
even changing over to showers by daybreak sat. Upper flow stays
westerly on Saturday, with cool air mass in place. This will allow
for quite a bit of showers across region Sat am. Now, the upper
trough axis will move over the region later in the day. As such, will
see showers decreasing, as the upper flow begins to turn more
northwesterly towards evening. Will keep showers going over the
cascades into the evening, but those will be decreasing Sat night.

With the trough axis well east of the region on sun, and more stable
northwesterly flow aloft over our area, will keep region dry for
Sunday. While not out the question, could still see a lingering
shower over the cascades in the morning, but think will keep that out
of the forecast and instead go with morning clouds. Otherwise, partly
to mostly sunny for Sunday, but still cool. Rockey

Long term Sunday night through Thursday... The operational models
and their ensembles continue to support the idea of an extended
period of dry weather and above average temperatures next week as
shortwave ridging builds over the pacific northwest. Northerly winds
should develop early in the week as thermal low pressure builds
northward into northwest oregon and southwest washington.

Temperatures appear likely to warm into the 80s either Monday or
Tuesday. Depending on the exact placement of thermal low pressure, we
could see these warm temperatures progress westward to coastal
locations as well, but it's still too early to be confident which
days this will or will not occur. In addition, gusty east winds
should develop at some point across the western columbia river gorge
and cascade ridgetops, but timing differences between models remain.

Neuman

Aviation Vfr conditions continue early this morning with only
variable high clouds streaming across the forecast area and light
surface winds. Enough cirrus and wind to likely preclude
significant fog development, though there does remain about a 15
percent chance that the coastal areas may see lower conditions
develop by daybreak. Otherwise, increasing mid-level clouds
through the day ahead of an approaching front. MVFR CIGS may
reach the northern coastal areas by the afternoon, but elsewhere,
expect mostlyVFR conditions through the most of the period with
a lowering trend after 20z and rain spreading onshore after 00z.

Breezy southwest winds can also be expected Friday afternoon and
early evening ahead of the front.

Kpdx and approaches...VFR conditions expected through 00z
Saturday, but lowering increasing mid-level clouds and breezy
winds develop the late afternoon into evening. MVFR CIGS and rain
expected to move into the terminal area by 03z. Cullen

Marine A stronger surface low develops well offshore tonight
and is forecast to move inside 130w by this afternoon. Forecast
models still slightly differ, but better agreement in terms of
the strength and track of the low. Confidence is rather high
that small craft advisory wind speeds will develop over the north
zones late Fri morning and continue through early Saturday, and
the previously issued advisory remains on track. Confidence is
lower in these stronger gusts moving into the southern outer
waters (ie. South of cascade head and beyond 20 nm from shore),
but still see some potential for at least occasional 25 kt gusts.

North wind returns Sunday and continues through the first half of
next week. Gusts up to 30 kt will be possible for across the
southern outer coastal waters late Monday through Tuesday night.

Seas will remain 3 to 5 feet early this morning, but will build
to 6 to 9 ft by late Friday. Expect the largest seas north of
cascade head and beyond 20 nm from shore. Seas then ease to
around 5 ft Saturday night and hold through the start of next
week. NW wind wave will be the dominant feature Sun through the
middle of next week, with a much smaller longer period background
swell. This will result in choppy conditions and could lead to
square sea conditions. However, will hold off on issuing an
advisory for seas at this time until confidence improves. Cullen

Pqr watches warnings advisories
Or... None.

Wa... None.

Pz... Small craft advisory for winds from noon today to 5 am pdt
Saturday for coastal waters from CAPE shoalwater wa to
cascade head 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 80 mi37 min 65°F1016.9 hPa

Wind History for Longview, WA
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Airport Reports
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Last 24hr24------------------------SW12
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1 day ago53------------------------322SW632SE2E21S2
2 days ago----------------------------1214334434

Tide / Current Tables for Ellsworth, Washington - IGNORE HEIGHTS
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Tide / Current data from XTide NOT FOR NAVIGATION
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Tide / Current Tables for Vancouver, Washington - IGNORE HEIGHTS
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Tide / Current data from XTide NOT FOR NAVIGATION
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Weather Map and Satellite Images
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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 (11,2,3,4)
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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.