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Marine Weather and Tides Plymouth, 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.

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Sunrise 7:11AM

Sunset 5:21PM

Wednesday January 27, 2021 6:57 PM PST (02:57 UTC)

Moonrise 4:18PM

Moonset 6:41AM

Illumination 100%

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.

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7 Day Forecast for Marine Location Near Plymouth, CA

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Area Discussion for - Sacramento, CA

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FXUS66 KSTO 272331 AFDSTO

Area Forecast Discussion National Weather Service Sacramento CA 331 PM PST Wed Jan 27 2021

SYNOPSIS. A long duration, high impact winter storm will continue to impact the region through Friday. Periods of gusty winds, moderate to heavy rain and blizzard conditions over the Northern Sierra. Potential for burn scar impacts to the LNU Complex and SCU Complex burn scars.

DISCUSSION. The strong winter storm continues to bring weather impacts across interior Northern California through tomorrow night. The high winds from overnight decreased by the morning hours. Significant damage and widespread power outages were reported across the southern Sacramento Valley, northern San Joaquin Valley, and the mountains with the strong winds. Winds today remain gusty with gusts up to 25 to 35 mph, locally higher in the mountains. Snow also fell down to the valley floor in the northern Sacramento Valley. The city of Redding received anywhere from 1.5 inch of snow at the airport on the south side of town to 10 inches at the higher elevations in the city. Snow levels have risen to above 2500 to 3500 feet over the mountains today.

Precipitation became more showery this morning through early afternoon for much of the area as expected. Radar imagery shows the next wave of moderate to heavy precipitation is beginning to spread into the forecast area from the south as the upper trough begins to funnel atmospheric moisture north. Precipitation is expected to move north through the evening with the heaviest expected generally along and south of Interstate 80. Another inch to two inches of liquid precipitation is forecast in the Valley through tomorrow night with up to 3 to 4 inches in the foothills below 3000 feet. Although HREF suggests rain rates are likely to remain below debris flow criteria, there is still a chance of isolated periods of heavy rainfall that could fall over the LNU Complex and SCU Complex burn scars. Therefore, the Flash Flood Watch remains in effect through tomorrow afternoon.

Significant mountain snowfall is expected to continue with this next wave of moisture. An additional 3 to 6 feet, locally higher, of snow is forecast from western Plumas County and south. The southern Cascades, Coastal Range, and Shasta County mountains are forecast to receive about another additional foot of snow. The heaviest snow is also expected along and south of Interstate 80. The Blizzard Warning remains in effect for the Northern Sierra for elevations above 3000 feet. The Winter Storm Warning remains in effect for the remainder of the mountains and foothills.

Precipitation will begin to taper off by late tomorrow. Showers are expected to continue through Friday and linger through Saturday, especially for the mountains and foothills. -HEC

EXTENDED DISCUSSION (Sunday THROUGH Wednesday). Yet another storm is still on track for early next week. This is slightly slower than before with some precipitation starting Sunday night and the north then main push of energy sliding south Monday and Tuesday.

Looking at the strength of this system right now is for sure weaker then on going system. ECMWF Extreme Forecast values for QPF and snow much lower. Also NAEFS/ECMWF ensemble anomaly values also much lower. That being said it is nice storm that will bring beneficial moisture to the area again. Winds will be less and snow levels higher in the 3500 and above range.

Bulk of moisture with this next system should be out of the area late Tuesday night with a cool north flow over the area Wednesday which could bring some northerly winds. Rasch

AVIATION. Widespread IFR to LIFR conditions due to low cigs and moderate to heavy rainfall. Gusty southerly winds gusts 20 to 30 knots through 15z Thursday. LIFR conditions over the mountains due to snow.

STO WATCHES/WARNINGS/ADVISORIES. Winter Storm Warning until 2 AM PST Friday for Burney Basin / Eastern Shasta County-Motherlode-Mountains Southwestern Shasta County to Western Colusa County-Northeast Foothills/Sacramento Valley-Shasta Lake Area / Northern Shasta County-Western Plumas County/Lassen Park.

Blizzard Warning until 2 AM PST Friday for West Slope Northern Sierra Nevada.

Flash Flood Watch through Thursday afternoon for Northern San Joaquin Valley-Southern Sacramento Valley.

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Weather Reporting Stations

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Stations	Dist	Age	Wind	Air Temp	Water Temp	Waves	Pressure	DewPt
SFXC1 - San Francisco Bay Reserve, CA	66 mi	73 min	SSE 15	45°F			1007 hPa	42°F
PCOC1 - 9415144 - Port Chicago, CA	70 mi	64 min	E 11 G 16	46°F	50°F		1006 hPa
AAMC1 - 9414750 - Alameda, CA	92 mi	64 min	ESE 14 G 18	49°F	50°F		1005.7 hPa

Wind History for Port Chicago, CA

(wind in knots)    EDIT      (on/off)   Help

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Last 24hr

SE16 G21

SE15 G20

SE15 G20

SE14 G21

S12 G16

SE10 G17

SE11 G18

SE14 G21

E6 G11

E13

E9

S6 G9

SE3

E1

W3 G6

S6 G10

E9

E11 G15

E10 G13

E13 G16

E10 G13

E13 G18

E7 G11

E11 G14

1 day ago

W17 G21

W19

W16 G20

W14 G20

SW8

W11 G14

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S5 G8

SW4 G10

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S6 G10

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S8 G13

S8 G11

SW6 G12

S7 G11

S9 G13

S12 G18

S12 G15

S10 G18

SE14 G22

2 days ago

SW4

W16 G20

W19 G24

W21 G27

W20

W20 G25

W21 G26

W20

W19 G24

W16 G20

W18 G23

W20 G28

W16 G21

W13 G16

W14 G17

W10

W13 G16

W14 G17

W13 G18

W13 G17

W14 G20

W18

W19 G23

W16 G21

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Airport Reports

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Airport	Dist	Age	Wind kt	Visibility	Sky/Weather	Temp	DewPt	Humidity	Pressure
Sacramento Mather Airport, CA	25 mi	63 min	E 8 G 16	5.00 mi	Rain	45°F	43°F	93%	1007.4 hPa

Link to 5 minute data for KMHR

Wind History from MHR (wind in knots)

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Last 24hr

SE32 G40

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SE39 G49

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SE21 G32

SE24 G33

SE20 G29

S25 G34

SE24 G34

SE21 G33

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SE20 G32

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E8 G16

E10 G17

1 day ago

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Calm

Calm

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SE7

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S9 G17

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S15 G24

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SE28 G37

2 days ago

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NW10

NW8 G18

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N8

E5

SE6

Calm

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Tide / Current Tables for Sacramento #4, Sacramento River, California

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Tide / Current Tables for Clarksburg #4, Sacramento River, California

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Weather Map

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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

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Ground Weather Radar Station

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