Thursday, October1, 2020
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Marine Weather and Tides
Happy Camp, CA

Version 3.4
NOTICE
8/26/2020 The 7 day forecast is taking about 5 seconds to load but it will eventually load. NOAA is still working on it.
8/18/2020 NOAA continues to have trouble. Wind guest will occasionally be left off graphs. I am working with NOAA to resolve the issue.
12/16/2019 NOAA is having trouble with requests that include wind gusts. I am posting graphs without wind gusts until it gets fixed.
10/9/2019 Updated the Marine Zones.
9/4/2019 Fixed the weather maps due to NOAA moving them.
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.

Sunrise 7:12AMSunset 6:59PM Thursday October 1, 2020 8:48 AM PDT (15:48 UTC) Moonrise 6:18PMMoonset 5:50AM Illumination 100% Phase: Full Moon; Moon at 14 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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PZZ450 Pt St George To Cape Mendocino Out 10 Nm- 231 Am Pdt Thu Oct 1 2020
Today..N winds 5 to 10 kt. Waves W 5 ft at 11 seconds...and W building to 7 ft at 16 seconds. Patchy fog.
Tonight..N winds 5 to 10 kt. Waves N 5 ft at 6 seconds...and W 8 ft at 15 seconds. Patchy fog.
Fri..N winds 5 to 10 kt. Waves N 4 ft at 5 seconds...and W 6 ft at 13 seconds. Patchy fog.
Fri night..N winds 5 to 10 kt. Waves N 4 ft at 5 seconds... And W 5 ft at 12 seconds.
Sat..N winds 5 to 10 kt. Waves N 5 ft at 6 seconds...and W 6 ft at 14 seconds.
Sun..N winds 5 to 10 kt. Waves N 6 ft at 6 seconds...and W 5 ft at 12 seconds.
Mon..N winds 5 kt. Waves nw 6 ft at 9 seconds.
PZZ400 231 Am Pdt Thu Oct 1 2020
Synopsis for northern california waters..Northerly winds and steep seas will increase tonight and Thursday, mainly in the southern outer waters. Otherwise, a long-period northwest swell will gradually decay through today, with additional northwest swell trains moving through the waters late in the week.


7 Day Forecast for Marine Location Near Happy Camp, CA
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location: 41.5, -123.35     debug


Area Discussion for - Medford, OR
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FXUS66 KMFR 011132 AFDMFR

Area Forecast Discussion National Weather Service Medford OR 432 AM PDT Thu Oct 1 2020

Updated Aviation Discussion.

DISCUSSION. Fire activity looks similar to what was occuring yesterday at this time, with the more active fires ranging from the Red Salmon Complex in extreme southwest Siskiyou county to fires farther south in California. 700 mb winds are from the south, while the 850 mb winds are from the north to northeast this morning, this will bring another day of higher smoke pushing into the region while the lower level smoke from ridge top levels to the valley floors remaining near the fire sources. This will bring another day of 4,000 to 5,000 foot smoke moving over southwest Oregon, and then mixing down in the afternoon. This thick smoke aloft will also keep temperatures lower with reduced solar heating. other than the smoke, stratus is pushing over the coastal range this morning into the inland Umpqua Basin, burning back to west of the coastal range by late morning, and then burning back a little offshore early afternoon. This stratus will then return inland late afternoon/early evening, but with a weaker upvalley flow this afternoon into the evening is not expected to spill over into the inland valley north of the Umpqua Divide.

On Friday the 700 mb winds increase from the south and become southwesterly over southwest Oregon, but also switch to the northwest over western Siskiyou county in the afternoon, bringing a net mix in the smoke flow over the region. That is, for most of the area, western Siskiyou county however will still see the worst of the smoke Friday. Stronger up valley flow in th afternoon into the evening, will return stratus spilling over the coastal rages into inland Douglas county by saturday morning.

Saturday will see the upper level ridge flattening, and the thermal trough moving inland, bringing stronger up valley flow in th afternoon into the evening, and a stronger marine push is expected, with stratus looking to spill over the Umpqua Divide, and up to the Siskiyous in the west side.

Models remain in good agreement in a break in the lingering summer like pattern, and more ensemble members are showing a return to a more seasonal cooler and wet pattern by the end of next week.

Sven

AVIATION. For the 01/12Z TAFs . Over the coastal waters and along the coast . widespread LIFR/IFR cigs and MVFR/IFR vsbys due to low clouds and fog are expected through this morning. Conditions will improve to MVFR cigs in the early afternoon with partial clearing to VFR in the afternoon. IFR cigs and MVFR/IFR vsbys will return to the coast this evening.

Inland . VFR conditions will prevail through the TAF period. Smoke aloft from wildfires will bring periods of MVFR vsbys to areas away from the coast today. /BR-y

MARINE. Updated 130 AM PDT Thursday 1 October 2020 . Seas at or below 6 feet will persist through this morning with moderate north winds. Coastal stratus and fog will produce periods of reduced visibilities through the morning hours. Although sub-advisory conditions are expected to continue into the weekend, seas will build later this morning as a long period swell arrives. Northwest swell of 8 to 9 ft at 14 to 15 seconds peaks this afternoon and evening, then seas gradually subside early Friday. Seas transition to wind wave dominated late this weekend as a thermal trough develops late Saturday night and strengthens into Sunday. This will mark a return of gusty north winds and steep wind driven seas, especially south of Cape Blanco, Sunday into Monday. /BR-y

FIRE WEATHER. Updated 200 PM PDT Tuesday 29 September 2020 .

Hot, dry, and somewhat unstable conditions under high pressure will continue across the region through much of the week, although there will be some slight cooling and a bit of an improvement in humidities by the weekend. Smoke will be moving into the region today and Tuesday, and this may help limit daytime highs a bit, as well as cap off some of the instability, but will also decrease visibilities and produce poorer air quality. One constant, however, will be the dryness, with low daytime humidities and moderate to poor recoveries, especially over the higher terrain and the East Side. Winds should remain light, other than some afternoon breezes, and this will preclude any critical fire weather concerns.

Models are indicating a return of the thermal trough late this weekend or early next week, producing a return of easterly winds. Indications are that the flow will be weaker this time around, but confidence is low at this time range; usually we see an increase in model wind strength as the event approaches the near term. Will be keeping an eye on this for possible headlines heading into the weekend.

There are no indication of any precipitation chances over the next week, but some guidance is indicating a possible change in the pattern in the far extended term, around 10-14 days out. -BPN

MFR WATCHES/WARNINGS/ADVISORIES. OR . None.

CA . None.

Pacific Coastal Waters . None.

SBN/MNF


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
CECC1 - 9419750 - Crescent City, CA 47 mi54 min 54°F 58°F1019.8 hPa
46027 - ST GEORGES - 8NM West Northwest of Crescent City, CA 60 mi28 min N 16 G 18 58°F1020.4 hPa
46244 - Humboldt Bay, North Spit, CA 68 mi52 min 60°F4 ft

Wind History for Crescent City, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Montague Siskiyou County Airport, CA51 mi55 minS 65.00 miFair with Haze47°F27°F46%1025.8 hPa

Link to 5 minute data for KSIY

Wind History from SIY (wind in knots)
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Last 24hrCalmCalmCalmN3CalmCalmW4CalmSW3SW333CalmS4NW3CalmCalmNE4E3CalmCalmCalmE3S6
1 day agoCalmCalmCalm3Calm3W43SW3S4SW8SW4N4CalmCalm3NE3NE4NE8N3NE4CalmNE4Calm
2 days agoN12N9W4333N5NW8N6N6CalmN5NE64NE5CalmW3CalmCalmNE4W4SW5SW3S4

Tide / Current Tables for Crescent City, California
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Crescent City
Click for Map
Thu -- 06:04 AM PDT     0.85 feet Low Tide
Thu -- 06:53 AM PDT     Moonset
Thu -- 07:14 AM PDT     Sunrise
Thu -- 12:18 PM PDT     6.60 feet High Tide
Thu -- 02:06 PM PDT     Full Moon
Thu -- 06:26 PM PDT     1.19 feet Low Tide
Thu -- 06:57 PM PDT     Sunset
Thu -- 07:21 PM PDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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6.56.153.62.31.30.81.12.13.44.966.66.45.64.431.91.31.323.24.55.7

Tide / Current Tables for Crescent City, California (2) (expired 1989-12-31)
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Crescent City
Click for Map
Thu -- 06:03 AM PDT     0.84 feet Low Tide
Thu -- 06:53 AM PDT     Moonset
Thu -- 07:14 AM PDT     Sunrise
Thu -- 12:17 PM PDT     6.61 feet High Tide
Thu -- 02:06 PM PDT     Full Moon
Thu -- 06:24 PM PDT     1.20 feet Low Tide
Thu -- 06:57 PM PDT     Sunset
Thu -- 07:21 PM PDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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6.5653.62.21.20.81.22.13.54.966.66.45.64.431.91.31.323.24.55.7

Weather Map
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wmap_P
GEOS Local Image of CentralWestCoast    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.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Ground Weather Radar Station Medford, OR
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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 numerous 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.