Thursday, March30, 2017 L-36.com


Marine Weather and Tides
Bertsch-Oceanview, 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 6:59AMSunset 7:41PM Thursday March 30, 2017 1:20 PM PDT (20:20 UTC) Moonrise 7:58AMMoonset 10:01PM Illumination 12% Phase: Waxing Crescent; Moon at 3 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 900 Am Pdt Thu Mar 30 2017
Synopsis for the southern oregon a waters..SEas will remain steep this morning. High pressure will build west of the waters today through this evening. This will bring increasing north winds that could reach small craft south of brookings. Weak high pressure will move over the waters tonight through Friday. A weak front will move through the waters Saturday morning with high pressure building west of the waters Saturday afternoon. High and very long period west swell is expected this Saturday night through Sunday night.

7 Day Forecast for Marine Location Near Bertsch-Oceanview, CA
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location: 41.75, -124.18     debug


Area Discussion for - Medford, OR
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Fxus66 kmfr 301758
afdmfr
area forecast discussion
national weather service medford or
1057 am pdt Thu mar 30 2017

Updated aviation discussion
Discussion No updates planned this morning. The bulk of the
precipitation associated with last night's frontal system has
moved off to the east. Moist, onshore flow in the wake of the
system will continue to produce some showers today, especially
over the upslope areas west of the cascade crest. We will also see
gusty northwest winds across the east side, and a wind advisory
remains in effect for portions of lake and modoc counties through
this evening. -wright

Aviation 30/18z TAF cycle... The main concern will be moderate to
strong winds east of the cascades, including klamath falls into
early this evening.

Vfr conditions are expected to be the predominate condition through
this evening. However cannot rule out MVFR CIGS in showers this
morning in the umpqua basin, including roseburg and kept them as the
prevailing condition in the TAF until 21z. Also partial mountain
obscuration is possible into this afternoon.

Vfr conditions will continue tonight into Saturday morning. There
is a chance for MVFR CIGS to develop in the umpqua basin, including
roseburg around 8z, but confidence on the timing and these
conditions developing are low to medium so watch for updates on
this. -petrucelli

Prev discussion /issued 319 am pdt Thu mar 30 2017/
discussion... Showers are continuing this morning behind the
departing cold front. Snow levels have dropped to around 3500
feet, but as precipitation is on the lighter side, no significant
accumulations are expected. Showers should taper off through the
day and come to an end by this evening as high pressure builds
into the region.

The front itself was not a major wind producer, but high pressure
to our north and west and low pressure to the south and east will
produce a tightened gradient, and cold air will spill into the
region. As a result, breezy northwest winds are expected over
much of the region, especially for higher terrain, gaps and
passes, and any northwest to southeast oriented valleys, but the
strongest winds are likely to develop over the east side. A wind
advisory continues for portions of lake and modoc counties today,
and details can be found in the weather message pdxnpwmfr.

Clearer skies and a cooler air mass are expected to produce cold
morning lows Friday, and frost is possible in the west side
valleys.

Ridging and high pressure will keep the area dry through Friday
and into Saturday, until the trailing edge of a dissipating front
to our north glances southern oregon on Saturday afternoon. Models
are in agreement that an upper level trough will pass in the
vicinity, but vary in the strength and track. Models are also
producing some form of frontal development directly over the area
late Saturday or Sunday, but there is no agreement on timing or
exact location. With such low confidence, have kept at least a
chance of showers in the forecast during this time, but some
changes are likely forthcoming as models attempt to come to some
consensus during the next several forecast cycles.

One note of concern for Saturday and perhaps Sunday will be the
increased risk for sneaker waves along the southern oregon coast.

A large and very energetic wave train will make its way into the
coastal waters, and this type of pattern has been known to produce
sudden higher waves with significant sweep across the beaches.

Given the more pleasant weather Saturday, and area spring break
travel and recreation ongoing, have issued a beach hazard
statement to illustrate the increased risk. Those on area beaches
Saturday should be aware of this risk, and be extra vigilant for
sudden changes in wave conditions, even if the ocean appears
unthreatening.

The on-again, off-again pattern is expected to continue for the
remainder of the forecast term, with high pressure and dry
conditions returning Monday and Tuesday, then another wet front
arriving by midweek. Due to the wide range of solutions during the
long term, there is little confidence in the details, so will wait
to refine these as focus sharpens in the coming days. -bpn
marine... Updated 300 am pdt Thursday 30 march 2017... Seas will
remain steep this morning due to west swell around 10 feet at 14
seconds. Westerly swell will diminish early this afternoon. High
pressure will build west of the waters today and persist on
Friday. This will bring increasing north winds today into tonight.

An area of small craft advisory level winds and seas is expected
to develop late this afternoon and this evening for locations
south of brookings within 25 nm of shore. North winds are expected
to lower below small craft levels tonight and Friday. A
disturbance will move across the area late Saturday and Sunday.

High and very long period west swell is expected to arrive late
Saturday into Sunday. This may bring dangerous bar crossings and
possible high surf to the coast.

Mfr watches/warnings/advisories
Or... Beach hazards statement from Saturday afternoon through Sunday
morning for orz021-022.

Wind advisory until 11 pm pdt this evening for orz031.

Ca... Wind advisory until 11 pm pdt this evening for caz085.

Pacific coastal waters... Small craft advisory from 5 pm this
afternoon to 11 pm pdt this evening for pzz356-376. Small
craft advisory for hazardous seas until 11 am pdt this morning
for pzz350-356-370-376.



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
CECC1 - 9419750 - Crescent City, CA 0 mi50 min NW 9.9 G 15 52°F 55°F1025.6 hPa
46027 - ST GEORGES - 8NM West Northwest of Crescent City, CA 13 mi90 min NNW 18 G 21 50°F 53°F8 ft1025.5 hPa (+1.2)
46244 - Humboldt Bay, North Spit, CA 60 mi59 min 53°F11 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, CA4 mi24 minNNW 16 G 2410.00 miFair54°F45°F72%1025.9 hPa
Brookings, Brookings Airport, OR23 mi24 minWNW 12 G 1710.00 miFair55°F43°F64%1027.1 hPa

Wind History from CEC (wind in knots)
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Last 24hrS9S11SE12SE12S13S11S11W5NW12NW13NW16
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N12N9N9N7
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1 day agoW6W6NW6NW5W9W4CalmS4SW3CalmS3SE6S6SE7SE5S5S7S9S10S13S12S14S16SW10
2 days agoNW7NW6NW8NW8N6N3NW6N4N3E4NE5N4N3N4NE4CalmE3E3E3E3NE4NW5W4S5

Tide / Current Tables for Crescent City, California
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Crescent City
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Thu -- 01:38 AM PDT     7.46 feet High Tide
Thu -- 07:02 AM PDT     Sunrise
Thu -- 08:07 AM PDT     -0.50 feet Low Tide
Thu -- 08:58 AM PDT     Moonrise
Thu -- 02:24 PM PDT     6.43 feet High Tide
Thu -- 07:40 PM PDT     Sunset
Thu -- 08:10 PM PDT     1.15 feet Low Tide
Thu -- 11:00 PM PDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
6.37.37.46.65.13.31.40.1-0.5-0.212.64.35.66.46.35.54.22.81.71.21.42.43.9

Tide / Current Tables for Brookings, Chetco Cove, Oregon
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Brookings
Click for Map
Thu -- 01:39 AM PDT     7.46 feet High Tide
Thu -- 07:02 AM PDT     Sunrise
Thu -- 08:11 AM PDT     -0.50 feet Low Tide
Thu -- 08:57 AM PDT     Moonrise
Thu -- 02:25 PM PDT     6.43 feet High Tide
Thu -- 07:41 PM PDT     Sunset
Thu -- 08:14 PM PDT     1.15 feet Low Tide
Thu -- 11:01 PM PDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
6.37.37.46.75.23.31.50.1-0.5-0.20.92.54.25.66.46.35.54.22.81.71.21.42.33.8

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 (16,3,4,5)
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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.