Monday, December11, 2017 L-36.com


Marine Weather and Tides
Crescent City, CA

Version 3.4
What's New / NOTES
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.
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 7:29AMSunset 4:49PM Sunday December 10, 2017 9:36 PM PST (05:36 UTC) Moonrise 12:00AMMoonset 1:03PM Illumination 47% Phase: Third Quarter Moon; Moon at 22 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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This is a Weather Statement Zone, please check the Date to see if it has expired
PZZ330 1126 Pm Pdt Fri Aug 9 2013
.thunderstorms over the waters... Thunderstorms over the waters have weakened but isolated storms will continue overnight. Mariners can expect gusty and erratic winds with the storms along with frequent lightning. If caught on the open water stay below deck if possible...keep away from ungrounded metal objects. Lat...lon 4397 12411 4396 12411 4400 12413 4284 12455 4242 12440 4225 12441 4205 12428 4184 12422 4181 12580 4198 12579 4220 12589 4370 12576 4386 12565 4399 12562 4403 12414
PZZ300 801 Pm Pst Sun Dec 10 2017
Synopsis for the southern oregon coastal waters..High pressure will continue to produce relatively calm conditions through much of the next week. A dissipating cold front will brush the outer portions of the coastal waters area late Monday, at which time west swell will increase through Tuesday afternoon. North winds will increase Wednesday as high pressure rebuilds. A more active weather pattern is expected this weekend with increased swell and periods of increased southerly winds.

7 Day Forecast for Marine Location Near Crescent City, CA
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location: 41.76, -124.19     debug


Area Discussion for - Medford, OR
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Fxus66 kmfr 110414
afdmfr
area forecast discussion
national weather service medford or
814 pm pst Sun dec 10 2017

Update The current forecast looks like it is well on track.

Fog at the airport is at about a quarter of a mile, and looking at
the department of transportation traffic cameras, the fog does not
appear to be as dense as it was yesterday at this time--at least,
for now. That being said dense fog is likely to occur in roseburg
while some freezing fog will be possible across the rogue valley.

As a result, have left the dense fog and freezing fog advisories
as is. The air stagnation advisory also will continue without
issue. See the npwmfr for more details.

Otherwise, have not made any changes to the forecast; but have
included the previous discussion which details the pattern and
pattern change pretty well.

Aviation 11 00z TAF cycle... Lifr conditions will continue
tonight for rbg and mfr TAF sites. This is essentially a
persistent forecast as the inversion strengthens even more
tonight. Lifr conditions will continue until the early afternoon
hours on Monday for the umpqua valley and should lift around the
noon hours in the rogue valley.

Vfr conditions will prevail elsewhere, including the coast and
coastal waters. -smith

Marine Updated 800 pm pst Sunday, dec 10th, 2017... High
pressure will remain in control over the waters with conditions
remaining below small craft advisory levels through mid week. A
dissipating cold front is expected to brush the outer portions of
the coastal waters area late Monday, at which time west swell will
increase through Tuesday afternoon. North winds will increase
Wednesday as high pressure rebuilds, but will likely remain below
small craft advisory levels. A change to a more active weather
pattern is expected this weekend with increased swell and periods
of increased southerly winds. -bpn br-y

Prev discussion issued 302 pm pst Sun dec 10 2017
short term... Tonight through Wednesday night... Persistence
remains the predominant word to describe the short term. Low
clouds and fog have persisted in the umpqua valley near roseburg
and sutherlin, and also in the rogue valley near grants pass and
illinois valley near cave junction. Visibilities in those areas
will lower again and become dense tonight with expanding coverage
of stratus. There is expected to be the addition of dense freezing
fog again late tonight in the rogue valley. The inversion tonight
is expected to be not quite as strong as last night but be even
shallower. As a result, a dense fog advisory has been issued for
the umpqua valley and freezing fog advisory for the rogue and
illinois valley for late tonight into Monday morning... The same
areas which had dense fog this morning.

Changes through Wednesday night will be minor. A very weak
shortwave disturbance will dissipate before reaching the coast
late Tuesday. Otherwise, high pressure will remain firmly in
control through mid-week.

Long term... Thursday until next Tuesday... High pressure and the
rather persistent pattern will continue up until Thursday.

Thursday should be our last day of morning fog before a short wave
trough moves through Friday. This trough will bring a little bit
of rain and perhaps some freezing rain east of the cascades Friday
morning. The freezing rain should be very light looking at the
model QPF output and the soundings east of the cascades.

After this quick hitting system moves through Friday, a deep trough
will setup in the gulf of alaska. In general, models are in pretty
good agreement with what will happen as an atmospheric river type
event will impact the region. This should result in wetting
precipitation for the majority of next weekend. The only reason for
a little lack of confidence is how models are still changing run to
run with exact timing and location. Right now the forecast calls
for snow levels around 4000-6500 feet on Saturday before the snow
levels rise on Sunday. The bulk of the precipitation will arrive
when snow levels are higher, so not willing to commit to say that
the mountains will see enough snow to make a difference in the snow
pack.

After Sunday night, it appears some more precipitation will be on
the way during the Tuesday and Wednesday time frame. It's still
unclear how strong that upcoming system might be or if it will
miss the oregon area entirely.

-smith

Mfr watches warnings advisories
Or... Air stagnation advisory until 2 pm pst Thursday for
orz023-024-026-029>031.

Dense fog advisory from 2 am to 10 am pst Monday for orz023.

Freezing fog advisory from 2 am to 10 am pst Monday for
orz024-026.

Ca... None.

Pacific coastal waters... None.

Bms bpn dw


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
CECC1 - 9419750 - Crescent City, CA 1 mi54 min ENE 5.1 G 6 55°F 52°F1022.4 hPa
46027 - ST GEORGES - 8NM West Northwest of Crescent City, CA 12 mi46 min ESE 5.8 G 7.8 55°F 53°F6 ft1022.4 hPa (+1.0)
46244 - Humboldt Bay, North Spit, CA 60 mi36 min 54°F6 ft

Wind History for Crescent City, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Crescent City, Jack McNamara Field Airport, CA3 mi1.7 hrsE 610.00 miFair50°F37°F63%1022.7 hPa
Brookings, Brookings Airport, OR22 mi40 minE 410.00 miFair48°F37°F66%1024.9 hPa

Wind History from CEC (wind in knots)
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Last 24hrCalmCalmCalmE6E5E5E5E6E6E6E5E6E3E6S5S6CalmW3CalmSE3E5E6E6E7
1 day agoE7E8E8E6E8E7E7SE3E6E4E4E4SE6E4S5N6N4N4NE4N3N4CalmE6E6
2 days agoE7E7E6E6E8E7E6E7E6E6E6E6E5E5E4SW3SW4S6CalmE3E5E6E7E5

Tide / Current Tables for Crescent City, California
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Crescent City
Click for Map
Mon -- 01:01 AM PST     Moonrise
Mon -- 06:23 AM PST     6.88 feet High Tide
Mon -- 07:34 AM PST     Sunrise
Mon -- 12:52 PM PST     2.00 feet Low Tide
Mon -- 01:32 PM PST     Moonset
Mon -- 04:46 PM PST     Sunset
Mon -- 06:35 PM PST     5.21 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
11.62.645.36.36.86.86.15.13.92.92.222.333.94.65.15.24.7432.2

Tide / Current Tables for Brookings, Chetco Cove, Oregon
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Brookings
Click for Map
Mon -- 01:01 AM PST     Moonrise
Mon -- 06:24 AM PST     6.88 feet High Tide
Mon -- 07:35 AM PST     Sunrise
Mon -- 12:56 PM PST     2.00 feet Low Tide
Mon -- 01:33 PM PST     Moonset
Mon -- 04:45 PM PST     Sunset
Mon -- 06:36 PM PST     5.21 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
11.62.63.95.26.36.86.86.25.242.92.222.333.84.65.15.24.8432.2

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

GOES Local Image of CentralWestCoast    EDIT
Geos

Wind Forecast for Medford, OR (0,6,7,8)
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Ground Weather Radar Station Medford, 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.