Thursday, October28, 2021
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Marine Weather and Tides
Rancho Tehama Reserve, CA

Version 3.4
NOTICE
3/30/2021 -- ANZ330 has been split into ANZ331 and ANZ332. Click EDIT in Marine Forecast and select your new zone.
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 7:30AMSunset 6:11PM Thursday October 28, 2021 1:58 PM PDT (20:58 UTC) Moonrise 11:21PMMoonset 1:44PM Illumination 45% Phase: Third Quarter Moon; Moon at 23 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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PZZ455 Cape Mendocino To Pt Arena Out 10 Nm- 900 Am Pdt Thu Oct 28 2021
.small craft advisory in effect until 6 pm pdt this evening...
Today..NW winds 5 to 10 kt. Waves nw 11 ft at 16 seconds. Patchy fog.
Tonight..NW winds 5 to 10 kt. Waves nw 9 ft at 14 seconds.
Fri..NW winds 5 to 10 kt. Waves nw 7 ft at 14 seconds. Slight chance of showers.
Fri night..NW winds 5 to 10 kt. Waves W 6 ft at 12 seconds.
Sat..S winds 5 kt. Waves nw 5 ft at 11 seconds.
Sun..SE winds 5 to 15 kt. Waves nw 5 ft at 11 seconds...and nw 3 ft at 19 seconds.
Mon..SE winds 5 to 15 kt. Waves sw 6 ft at 10 seconds...and W 10 ft at 16 seconds.
PZZ400 900 Am Pdt Thu Oct 28 2021
Synopsis for northern california waters..Westerly swell around 10 feet will persist today, and then slowly subside tonight through Saturday. Brisk northerly winds and large steep waves will increase Friday afternoon and evneing over the northern waters after the passage of a cold front. Otherwise, unsettled weather conditions with showers and isolated Thunderstorms are forecast Friday through Saturday. Another front will approach late in the weekend, bringing a new round of southerly winds, followed by a westerly swell by Monday.


7 Day Forecast for Marine Location Near Rancho Tehama Reserve, CA
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location: 40, -122.37     debug


Area Discussion for - Sacramento, CA
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FXUS66 KSTO 281034 AFDSTO

Area Forecast Discussion National Weather Service Sacramento CA 334 AM PDT Thu Oct 28 2021

SYNOPSIS. Dry and mild weather the next couple of days. Low pressure moving over the far northern portion of California will bring a chance of showers late Friday and Saturday, mainly to the northern mountains. Rain returns to the the majority of Northern California early next week.

DISCUSSION. A little north wind down the Valley overnight provided sufficient mixing to limit fog in the Valley, while the night fog product showed moisture trapped in the mountain valleys/basins, i.e. Burney Basin and around Big Q. Increasing subsidence this morning, from the upper ridge axis building over the region, may lead to some fog in the Valley, as moisture from recent rain will be trapped below the radiative inversion. The HREF suggests some patchy chances of better than 50/50 of VSBYS less than 3SM developing before or after sunrise from the Nrn San Joaquin Valley northward into the central Sac Vly, mainly in the 0600-1000 time frame. At 0300, MCC and SAC began to report BR. Otherwise, a very pleasant day with max temps near to a little above normal in the Valley, and 3 to 9 degrees above normal in the mountains due to the warmer air aloft.

The upper ridge over Norcal shifts Ewd on Fri in advance of a closing mid-level low pressure center. Differences in the track of the low center provide a great deal of uncertainty in the areal coverage of PoPs/QPFs mainly Fri nite and Sat. The GFS continues to be farther south and faster than the ECMWF. The 5H cluster analysis shows a trof over Norcal with only Cluster 3 heavily weighted to the ECMWF showing a closed low just off the N CA coast by 12z Sat. Looks as if the models, especially the GFS have slowed the timing of spreading precip into our CWA and have adjusted the PoP/QPF timing in the morning package to Fri nite and Sat. This also includes limiting the chance of thunder to Sat with the consolidated low near the CA/OR border. Forecast water vapor transport shows Norcal in between moisture plumes so just light QPFs are expected over the Nrn mountain zones. The SREF QPF plumes show a mean of about 0.20" at MHS, and less than a tenth of RDD, however the majority of members are higher and consolidated just under a tenth of an inch.

A narrow highly amplified ridge builds along the W Coast on Sun while the cut-off low fills/exits our area, but suppresses heights and warming in our CWA. Thus a cooling trend is expected over the weekend. The narrow, amplified ridge will quickly be shunted Ewd by the next progressive Pacific trof and front which is forecast to move inland on Mon bringing another round of precip to interior Norcal. JHM

EXTENDED DISCUSSION (Monday THROUGH Thursday).

Models in good agreement with progression of next Pacific frontal system into NorCal Monday. Front progged to weaken as it moves into the CWA with overall light QPF. Drier weather expected Tuesday into early Wednesday under upper level ridge. Models differ with progression and overall QPF of next system, but point to more widespread light to moderate precipitation around the Wed/Thu timeframe.

AVIATION.

VFR conds ovr intr NorCal nxt 24 hrs exc lcl MVFR/IFR poss in BR/FG in Cntrl Vly til 17z with sfc wnd blo 12 kts.

STO WATCHES/WARNINGS/ADVISORIES. None.


Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Red Bluff, Red Bluff Municipal Airport, CA12 mi64 minVar 310.00 miFair71°F54°F55%1021 hPa

Link to 5 minute data for KRBL

Wind History from RBL (wind in knots)
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Last 24hr5N9N8N9N9NW6NW7NW10NW9N7N7NW8N6N6N6N6NW7NW9N6N5NE8E6SE53
1 day agoS14SE13S14SE9SE9SE8SE6S4S600NW30N5N6NW4NW5NW6NW4N6N6N4N54
2 days ago4S7S11SE8SE9SE6S4SW6S7SW4S5S6S7S9S12S11S11S12S11S15SE15
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Tide / Current Tables for Westport, California
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Westport
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Thu -- 07:11 AM PDT     4.33 feet High Tide
Thu -- 07:39 AM PDT     Sunrise
Thu -- 12:00 PM PDT     3.54 feet Low Tide
Thu -- 01:06 PM PDT     Last Quarter
Thu -- 02:48 PM PDT     Moonset
Thu -- 04:48 PM PDT     4.62 feet High Tide
Thu -- 06:17 PM PDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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Tide / Current Tables for Fort Bragg Landing, California
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Fort Bragg Landing
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Thu -- 07:12 AM PDT     4.43 feet High Tide
Thu -- 07:39 AM PDT     Sunrise
Thu -- 12:02 PM PDT     3.54 feet Low Tide
Thu -- 01:06 PM PDT     Last Quarter
Thu -- 02:48 PM PDT     Moonset
Thu -- 04:49 PM PDT     4.72 feet High Tide
Thu -- 06:17 PM PDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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Weather Map
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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.
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