Sunday, April30, 2017 L-36.com


Marine Weather and Tides
Crescent City, CA

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 6:12AMSunset 8:14PM Sunday April 30, 2017 7:48 AM PDT (14:48 UTC) Moonrise 9:09AMMoonset 12:00AM Illumination 21% Phase: Waxing Crescent; Moon at 5 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 204 Am Pdt Sun Apr 30 2017
Synopsis for the southern oregon coastal waters..Showers associated with a cold front will move onshore this morning. A thermal trough will return this afternoon leading to stronger north winds and steeper seas...highest south of gold beach... Through late this evening. Offshore high pressure and the thermal trough will weaken on Monday but are expected to redevelop Tuesday into Wednesday. Another front will push through on Thursday with stronger north winds Friday into next weekend.

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 301132
afdmfr
area forecast discussion
national weather service medford or
432 am pdt Sun apr 30 2017
updated aviation section

Discussion A weak front is washing out over mostly the west
side this morning. Radar returns, with a line of showers moving
inland to the north, but the medford radar on mt ashland not
showing any returns, indicate that the showers are mostly low
topped and wit the onshore 700 mb flow from the west northwest at
30 kt the bulk of the precipitation should fall on the west side
of the coastal ranges and the cascades, with little falling east
of the cascades this morning. Almost all of the precipitation
should be over by late morning as an upper level ridge begins to
build again over the area. The axis of the upper level ridge moves
west Monday with another weak front moving in on northwest zonal
flow pattern Monday night. This weak front has very similar
characteristics of the front current moving through, and will have
similar results. Models continue to indicate a strong ridge
building into the region Wednesday, with 850 mb temperatures
agreeing with MOS guidance, bringing high temperatures in the mid
80s in the west side valleys, and possibly reaching 90 at
medford. With these high temperatures Wednesday southerly flow
also begins to feed moisture into the region. This southerly moist
flow into the region continues into Thursday with models now
showing computed from 850 mb li's near -5 over the cascades and
instability now halfway across the west side on the 00z run.

Aviation 30/12z TAF cycle... This morning, MVFR and areas of ifr
with light rain can be expected along the coast, mainly north of
cape blanco. Meanwhile, a mix ofVFR/MVFR ceilings with higher
terrain obscured will prevail inland from the coast to the cascades
and siskiyous. Elsewhere, ceilings will mostly remainVFR with only
a slight chance of light showers. Conditions will improve toVFR
across the entire area this afternoon and remain that way through
tonight. -spilde

Marine Updated 200 am pdt Sunday, 30 april 2017... Showers
associated with a weak cold front will move onshore this morning. A
thermal trough will develop this afternoon resulting in stronger
north winds and steeper seas through late this evening... Affecting
areas from about 3 to 40 nm from shore, but with the highest winds
and steepest seas south of gold beach. A weak system will disrupt
the thermal trough Monday and Monday night, but it should redevelop
Tuesday into Wednesday. A cold front will move through the coastal
waters on Thursday. Models continue to show the thermal trough
potentially becoming quite strong toward the end of next week.

-spilde

Mfr watches/warnings/advisories
Or... None.

Ca... None.

Pacific coastal waters... Small craft advisory from 2 pm this afternoon
to 2 am pdt this evening for pzz356-376.



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
CECC1 - 9419750 - Crescent City, CA 1 mi49 min E 4.1 G 5.1 50°F 55°F1026.3 hPa (+0.3)
46027 - ST GEORGES - 8NM West Northwest of Crescent City, CA 12 mi59 min E 5.8 G 5.8 51°F 53°F3 ft1025.6 hPa (+0.4)
46244 - Humboldt Bay, North Spit, CA 61 mi58 min 54°F4 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 mi53 minE 410.00 miOvercast50°F45°F83%1026.3 hPa
Brookings, Brookings Airport, OR22 mi53 minN 010.00 miOvercast50°F45°F83%1027.6 hPa

Wind History from CEC (wind in knots)
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Last 24hrCalmCalmNW7NW6NW11N9NW9NW7NW10N9NW9NW11N7NW9NW8NW8CalmCalmE5E5E4CalmNE3E4
1 day agoN12N11N15
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N12N8N6SE3SW4S3S4CalmCalmCalmCalm
2 days agoN3N5N6NW9NW12NW13NW14NW12NW15
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NE5N4NE5NE5N9N8N9

Tide / Current Tables for Crescent City, California
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Crescent City
Click for Map
Sun -- 12:07 AM PDT     Moonset
Sun -- 02:38 AM PDT     7.34 feet High Tide
Sun -- 06:14 AM PDT     Sunrise
Sun -- 09:38 AM PDT     -1.35 feet Low Tide
Sun -- 10:09 AM PDT     Moonrise
Sun -- 04:21 PM PDT     5.77 feet High Tide
Sun -- 08:14 PM PDT     Sunset
Sun -- 09:39 PM PDT     2.45 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
5.16.47.27.36.65.23.31.4-0.2-1.2-1.3-0.60.72.445.15.75.654.13.22.62.53

Tide / Current Tables for Brookings, Chetco Cove, Oregon
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Brookings
Click for Map
Sun -- 12:09 AM PDT     Moonset
Sun -- 02:39 AM PDT     7.34 feet High Tide
Sun -- 06:13 AM PDT     Sunrise
Sun -- 09:42 AM PDT     -1.35 feet Low Tide
Sun -- 10:09 AM PDT     Moonrise
Sun -- 04:22 PM PDT     5.77 feet High Tide
Sun -- 08:15 PM PDT     Sunset
Sun -- 09:43 PM PDT     2.45 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
5.16.37.27.36.65.23.41.5-0.1-1.1-1.3-0.70.72.33.95.15.75.654.13.22.62.52.9

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 (10,2,3,4)
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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.