Wednesday, January27, 2021
Privacy Policy
L-36.com

Marine Weather and Tides
Yreka, CA

Version 3.4
NOTICE
1/26/2021 -- The West Coast Satellite images havd been updated. They now use GEOS-17.
1/1/2021 -- The 7 day forecast are now working well. Thank you NOAA for your support.

Sunrise 7:26AMSunset 5:20PM Wednesday January 27, 2021 6:25 AM PST (14:25 UTC) Moonrise 4:15PMMoonset 7:00AM Illumination 99% 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
    EDIT      (on/off)   Help
PZZ450 Pt St George To Cape Mendocino Out 10 Nm- 315 Am Pst Wed Jan 27 2021
.gale warning in effect through this evening...
Today..S winds 20 to 30 kt with gusts to around 40 kt. Waves W 19 ft at 16 seconds. Showers and slight chance of tstms.
Tonight..S winds 10 to 20 kt. Waves W 16 ft at 16 seconds. Showers.
Thu..S winds 5 to 10 kt. Waves W 13 ft at 14 seconds. Chance of rain.
Thu night..N winds 5 to 10 kt. Waves nw 9 ft at 13 seconds.
Fri..S winds 10 to 20 kt. Waves nw 8 ft at 12 seconds...and nw 3 ft at 20 seconds.
Sat..S winds 10 to 20 kt. Waves W 9 ft at 11 seconds...and nw 6 ft at 18 seconds.
Sun..S winds 10 to 20 kt. Waves S 9 ft at 9 seconds...and W 12 ft at 16 seconds.
PZZ400 315 Am Pst Wed Jan 27 2021
Synopsis for northern california waters..Gusty winds and steep hazardous seas will continue across the coastal waters through Thursday evening. A mid period westerly swell will move through the waters this evening.


7 Day Forecast for Marine Location Near Yreka, CA
   Hourly   EDIT   Help
location: 41.75, -122.64     debug


Area Discussion for - Medford, OR
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
FXUS66 KMFR 271137 AFDMFR

Area Forecast Discussion National Weather Service Medford OR 337 AM PST Wed Jan 27 2021

DISCUSSION. A major winter storm continues to impact Northern California and Southern Oregon with snowfall this morning. The heaviest snowfall continues to be in the Mount Shasta City area, where strong southerly winds are slamming into the terrain, bringing enhanced , heavy snowfall rates. Up to 4 inches per hour snowfall rates have been observed in the region, and Interstate 5 from south of Dunsmuir northward to Weed continues to be impacted by this. Blizzard conditions are being observed in Weed with frequent gusts to 35 mph and very low visibility. Winds should begin to diminish some this morning, so the Blizzard Warning there will transition to a Winter Storm Warning at 4am. We'll keep a close eye to this area this afternoon though, as winds will increase again and could bring strong winds and low visibility in falling/blowing snow to the Weed area once again. Periods heavy snow will continue from Dunsmuir north to Mt Shasta City and Weed to just south of Grenada through this evening as reinforcing low pressure offshore moves towards the coast and maintains hefty southerly flow and upslope enhanced precipitation.

This low pressure will bring multiple other impacts to the forecast area today. First, temperatures hover right around freezing in and around the Illinois Valley northward to Grants Pass and Wimer and farther north to Sexton Pass and Camas Mtn in Douglas County. As the vigorous low offshore moves closer, it will send some heavy precipitation into these areas this morning into the afternoon. For the morning hours, we don't expect much warming at all, and incoming heavy precipitation will bring down colder air, so we're maintain Winter Storm Warnings and Winter Weather Advisories for these areas. Travel will again become hazardous later this morning on portions of Highways 199, 238 and I-5 as these snow bands move in. Models indicate significant warming late morning into the afternoon, but we've seen enough of these types of cold low pressure systems bring longer-than-expected low snow levels to Josephine/Southern Douglas Counties, so we've kept snow levels down to around 1500 feet through the afternoon and keep a Winter Weather Advisory in the area through the afternoon, from Obrien north to Camas Mtn on Highway 42 and Canyon Creek Pass on I-5. We think periods of heavier precipitation will bring down snow levels enough to keep snow impacts going in these areas. Breaks in precipitation could bring temperatures enough to make for wet roadways, but confidence is low on that.

Another impact from the approaching low is another round of winds for areas east of the Cascades. We've issued a Wind Advisory today through this evening to account for this. Lastly, thunderstorms are possible over the coast and coastal waters as this cold low moves over the relatively warm Pacific Waters.

As low pressure moves northward, the upper low and trough will gradually shift eastward, and this will bring the potential for snow impacts to areas east of the Cascades late tonight into Thursday. There's still a fair bit of uncertainty in how much snow will impact areas like Alturas and Lakeview, so we'll let the dayshift examine this and any potential Winter Weather Advisory issuances.

As energy from the upper trough pushes to the south and east into Central and Southern California, precipitation in our forecast area will come to an end on Friday. Another front, much faster moving and weaker than the current system, arrives Friday night. A wetter, stronger front moves in on Monday with snow levels around 3000-4000 feet.

AVIATION. For the 27/12Z TAFs . Conditions are generally a mix of MVFR/VFR, with areas of LIFR/IFR in heavy rain and snow, especially in the Mt Shasta Region. Winds have eased some overnight, but will increase again today as the next surface low moves up the coast. Some LLWS is possible along the coast again today.

Freezing levels of around 1000 ft this morning will increase to around 3000 ft above MSL by late this evening. Precipitation will be mostly showery, but at times, flight conditions within those showers could lower significantly. Otherwise, VFR/MVFR conditions should prevail, with the exception of the Mt Shasta Region, where heavy snow and strong winds will result in significantly reduced visibilities with LIFR conditions and heavy snow expected to continue through much of today. -BPN/BR-y

MARINE. Updated 200 AM PST Wednesday 27 Jan 2021 . South winds are expected to increase again this morning, although they will be considerably less than what occurred today and only reach advisory levels. Very steep seas build again today into this evening, peaking at around 18 ft. Conditions improve Thursday into Friday with relatively light winds and seas lowering to 8 to 10 ft.

Conditions worsen again late Friday into next weekend as a series of fronts move through the region. -BPN/BR-y

MFR WATCHES/WARNINGS/ADVISORIES. OR . Winter Weather Advisory until 4 AM PST early this morning for ORZ029>031. Wind Advisory until 10 PM PST this evening for ORZ030-031. Winter Weather Advisory until 4 PM PST this afternoon below 8500 feet in the for ORZ023>026. Winter Storm Warning until 10 AM PST this morning above 1500 feet in the for ORZ022. Winter Storm Warning until 10 AM PST this morning above 1500 feet in the for ORZ024. Winter Weather Advisory until 4 AM PST early this morning for ORZ027-028.

CA . Winter Weather Advisory until 4 AM PST early this morning for CAZ083>085. Wind Advisory until 10 PM PST this evening for CAZ084-085. Winter Weather Advisory until 10 AM PST Thursday below 8500 feet in the for CAZ080. Winter Weather Advisory from 10 PM this evening to 4 PM PST Thursday below 8500 feet in the for CAZ082-083. Winter Storm Warning until 10 PM PST this evening for CAZ081>083. Winter Storm Warning until 10 AM PST this morning above 1500 feet in the for CAZ080. Winter Weather Advisory until 4 AM PST early this morning for CAZ081. Blizzard Warning until 4 AM PST early this morning for CAZ081.

Pacific Coastal Waters . Hazardous Seas Warning until 2 AM PST Thursday for PZZ350-356-370-376.


Weather Reporting Stations
   EDIT       (on/off)   Help   NOTE: Click on distance to see the station location on a map

Wind History for Crescent City, CA
(wind in knots)    EDIT      (on/off)   Help
7
AM
8
AM
9
AM
10
AM
11
AM
12
PM
1
PM
2
PM
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
9
PM
10
PM
11
PM
12
AM
1
AM
2
AM
3
AM
4
AM
5
AM
6
AM
Last
24hr
SE16
G21
SE18
G23
S25
G36
SE28
G34
SE32
G43
SE28
G38
SE31
G43
SE36
G54
SE37
G47
S32
G43
SE33
G42
SE30
G38
SE28
G43
S32
G41
S23
G34
S16
G20
SE17
G22
SE17
G23
SE18
G22
SE19
G25
SE18
G23
SE22
G34
SE31
G40
SE28
G35
1 day
ago
NE4
NE4
NE4
NE2
SW1
SW4
SW4
W5
NW7
NW6
N2
NE2
E2
NE1
NE1
N2
E1
NE3
NE1
NE2
E3
E6
SE10
G13
SE15
2 days
ago
E4
E3
E5
G10
SE10
G13
S12
G16
S11
G14
S14
G17
N11
G17
NW13
G20
NE7
G10
N10
G15
NE5
N7
NW10
G17
NE3
N3
NE4
N3
NE4
NE4
NE4
NE4
NE6
G9
NE5

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports. Follow links for more data.
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Montague Siskiyou County Airport, CA9 mi32 minSSW 510.00 miMostly Cloudy33°F24°F70%1001.5 hPa

Link to 5 minute data for KSIY

Wind History from SIY (wind in knots)
7
AM
8
AM
9
AM
10
AM
11
AM
12
PM
1
PM
2
PM
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
9
PM
10
PM
11
PM
12
AM
1
AM
2
AM
3
AM
4
AM
5
AM
6
AM
Last 24hrS4CalmS3CalmNE3N4S29
G38
S38
G46
S33
G44
S24
G46
S30
G43
S31
G40
S32
G41
S21
G31
S27
G39
S25
G37
S14S18
G32
S19S11S14SW7S8S5
1 day agoCalmCalmCalmCalmCalmS33S5CalmW7SW4SW6SW4--W5S3CalmW4SW5S3CalmCalmCalmSW4
2 days agoNE6SW4S3SW4S3CalmCalmS4SW4S3CalmN6N7NW5CalmE3CalmNE3SE3E3N4N3NW4N4

Tide / Current Tables for Crescent City, California (2) (expired 1989-12-31)
   EDIT   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Crescent City
Click for Map
Wed -- 04:10 AM PST     3.69 feet Low Tide
Wed -- 07:06 AM PST     Moonset
Wed -- 07:33 AM PST     Sunrise
Wed -- 10:02 AM PST     7.68 feet High Tide
Wed -- 04:21 PM PST     Moonrise
Wed -- 05:16 PM PST     -0.66 feet Low Tide
Wed -- 05:26 PM PST     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

12
am
1
am
2
am
3
am
4
am
5
am
6
am
7
am
8
am
9
am
10
am
11
am
12
pm
1
pm
2
pm
3
pm
4
pm
5
pm
6
pm
7
pm
8
pm
9
pm
10
pm
11
pm
5.75.24.643.73.94.55.46.57.37.77.46.44.831.3-0-0.6-0.50.41.83.44.75.7

Tide / Current Tables for Crescent City, California
   EDIT      (on/off)   Help   One Week of Data
Crescent City
Click for Map
Wed -- 04:11 AM PST     3.69 feet Low Tide
Wed -- 07:06 AM PST     Moonset
Wed -- 07:33 AM PST     Sunrise
Wed -- 10:03 AM PST     7.67 feet High Tide
Wed -- 04:21 PM PST     Moonrise
Wed -- 05:17 PM PST     -0.67 feet Low Tide
Wed -- 05:26 PM PST     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

12
am
1
am
2
am
3
am
4
am
5
am
6
am
7
am
8
am
9
am
10
am
11
am
12
pm
1
pm
2
pm
3
pm
4
pm
5
pm
6
pm
7
pm
8
pm
9
pm
10
pm
11
pm
5.75.34.643.73.94.55.46.57.37.77.46.44.831.3-0-0.6-0.50.41.83.44.75.7

Weather Map
       (on/off)   Help Weather Map
wmap_P
GEOS Local Image of CentralWestCoast    EDIT
NOTE: This section has been updated as of 1/26/2021. If the image you are expecting is not showing, please let me know. You may use the EDIT function to update your location.
Link to Loop

Other links: GEOS-West     Contential US     Full GOES-East
Ground Weather Radar Station




Cookie Policy:
This website uses cookies to save your settings. No personal information is saved. I do not collect statistics on your visit. You can disable cookies in your browser if you like but it is not recommended for this site. I do not sell cookies. Go to a bakery for that. In fact I do not sell anything. To disable cookies from L-36.com, please refer to the Help button in your browser.
Privacy Policy:
I do not sell or share any user data or anything else for that matter. The only personal information I save is in the site log which has a line for each page view which includes the IP address your browser sends in the header as well as which page you requested. I use this to block hackers and other bad actors. I do not use this raw data to create profiles on users. I periodically delete the log files. Google supplies the ads on this site. Because I do not track who you are, I cannot customize how these ads are served. They may be personalized to improve the ad experience. If you do not want personalized ads, please adjust the settings on the Google site HERE. NOTE: The best I can determine, this site is not subject to CCPA but I am doing my best to comply anyway.
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 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.