Walnut Creek, CA Marine Weather and Tide Forecast
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Marine Weather and Tide Forecast for Walnut Creek, CA


December 11, 2023 11:23 AM PST (19:23 UTC)
Sunrise 7:12AM   Sunset 4:50PM   Moonrise  6:03AM   Moonset 3:39PM 

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. Privacy and Cookie policy

Marine Forecasts
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PZZ530 San Pablo Bay, Suisun Bay, The West Delta And The San Francisco Bay North Of The Bay Bridge- 836 Am Pst Mon Dec 11 2023
Today..NW winds around 5 knots...becoming sw this afternoon.
Tonight..W winds 5 to 10 knots.
Tue..NW winds 5 to 10 knots.
Tue night..NW winds 5 to 10 knots.
Wed..NE winds 5 to 10 knots.
Wed night..NE winds 5 to 10 knots.
Thu..NE winds 5 to 10 knots.
Fri..NE winds 5 to 10 knots.

PZZ500 836 Am Pst Mon Dec 11 2023
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries...
high pressure off the pacific northwest coast and low pressure off the california coast will maintain northerly winds over the coastal waters. Gusty winds build over the southern waters early this week as an upper level low deepens into the great basin. The tail end of a weak system passing by will bring a slight chance of showers over the waters late Monday into Tuesday morning. Winds diminish into the later half of the week as high pressure builds once again. NEw storm system approaches next weekend.


7 Day Forecast for Marine Location Near Walnut Creek, CA
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Area Discussion for - San Francisco/Monterey Bay Area, CA
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FXUS66 KMTR 111809 AFDMTR

Area Forecast Discussion National Weather Service San Francisco CA 1009 AM PST Mon Dec 11 2023

New AVIATION

SYNOPSIS
Issued at 1206 AM PST Mon Dec 11 2023

Look for quiet weather this week with mild days and cool night. A pattern change takes hold by early next week with a return to wet and unsettled conditions.

UPDATE
Issued at 925 AM PST Mon Dec 11 2023

Another chilly start to the day with lows bottoming out in the 30s across the interior and some coastal locations. A few isolated pockets in the upper 20s across S Salinas Valley as well.
Relatively speaking, quiet weather to start the work week. Latest surface analysis shows a weak dissipating cold front off the NorCal. As this dissipating front drifts southward a few clouds and coastal showers will be possible today. Did an update earlier this morning to remove shower chances over the waters this morning. KMUX remains in "clear air" mode this morning and isn't picking up any shower activity. No other updates needed.

SHORT TERM
(Today and tonight)
Issued at 1206 AM PST Mon Dec 11 2023

An upper level ridge initially across the region will flatten in response to a shortwave trough progressing from the Pacific Northwest into the Great Basin. This pattern change will bring a more onshore wind component for this afternoon and evening while increasing boundary layer moisture across coastal portions of the area. Expect a return of coastal stratus and patchy fog this evening into Tuesday morning along with warmer overnight coastal and bayside temperatures. Highs this afternoon with top out mostly in the 60s, with overnight lows mainly in the upper 30s and 40s. Some of the colder inland portions of the Central Coast may see readings briefly dip into the mid or lower 30s towards sunrise.

LONG TERM
(Tuesday through Sunday)
Issued at 1206 AM PST Mon Dec 11 2023

The aforementioned shortwave will obtain sufficiently short wavelength to close off over the Desert Southwest by late week as transient ridging builds over California. Meanwhile a closed upper low will approach the region from the eastern Pacific by late week.

An active and unsettled pattern still appears to evolve by early next week. Model solutions have been rather provocative with a robust basin-spanning Pacific jet and decent subtropical moisture tap in play. Rain chances should enter the picture by Saturday and persist into next week, with an Atmospheric River type setup potentially in play. Exact details such as timing, rain amounts, and intensity will be fine tuned in the days ahead. This will be an evolving forecast so be sure to keep up with changes.

AVIATION
(18Z TAFS)
Issued at 1009 AM PST Mon Dec 11 2023

VFR conditions will prevail throughout the day with just a few passing high clouds. The return of stratus is likely late this evening and into the overnight with MVFR (or lower) ceilings, possible fog in the North Bay. Conditions return to VFR by mid-to- late morning.

Vicinity of SFO...VFR likely to prevail trough late tonight with MVFR ceilings thereafter. Guidance is fairly confident for the return by around 09Z and lasting through midmorning. Ceilings then lift after ~17Z.

SFO Bridge Approach...Similar to SFO although the stratus may impact the approach 2-4 hours before the terminal.

Monterey Bay Terminals...VFR to prevail through evening with higher confidence in the return of MVFR/IFR ceilings as soon as 04Z.
Conditions improve shortly after the end of the TAF period.

MARINE
(Today through Saturday)
Issued at 907 AM PST Mon Dec 11 2023

High pressure off the Pacific Northwest coast and low pressure off the California coast will maintain northerly winds over the coastal waters. Gusty winds build over the southern waters early this week as an upper level low deepens into the Great Basin. The tail end of a weak system passing by will bring a slight chance of showers over the waters late Monday into Tuesday morning.
Winds diminish into the later half of the week as high pressure builds once again. New storm system approaches next weekend.

MTR WATCHES/WARNINGS/ADVISORIES
CA...None.
PZ...Small Craft Advisory until 9 AM PST Tuesday for Pt Pinos to Pt Piedras Blancas 0-10 nm.


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesinHgDewPt
MZXC1 - 9415102 - Martinez-Amorco CA 10 mi53 min WSW 1.9G2.9 49°F 55°F30.14
UPBC1 10 mi53 min WNW 2.9G2.9
PCOC1 - 9415144 - Port Chicago, CA 11 mi53 min SSW 1.9G4.1 53°F 54°F30.12
PSBC1 - 9415115 - Pittsburg (Suisun Bay), CA 13 mi53 min 0G1 49°F 30.13
LNDC1 14 mi53 min 0G1 53°F 30.13
CQUC1 15 mi52 min 53°F
AAMC1 - 9414750 - Alameda, CA 16 mi53 min S 1.9G2.9 53°F 55°F30.14
DPXC1 - 9415141 - Davis Point, San Pablo Bay, CA 16 mi53 min WSW 1G1.9 49°F 30.13
OKXC1 - 9414776 - Oakland (Berth 34), CA 16 mi65 min N 2.9G4.1 49°F 30.14
OMHC1 - 9414769 - Oakland Middle Harbor Met, CA 16 mi53 min NW 1.9G2.9
PPXC1 - 9414847 - Richmond (Point Potrero), CA 17 mi53 min NNW 2.9G4.1 54°F 30.14
PXOC1 - 9414311 - San Francisco (Pier 1), CA 19 mi53 min NNW 2.9G5.1 51°F 30.10
RCMC1 - 9414863 - Richmond, CA 19 mi53 min WNW 2.9G4.1 51°F 55°F30.13
PXSC1 20 mi53 min 52°F
SFXC1 - San Francisco Bay Reserve, CA 21 mi98 min SSW 1.9 48°F 30.1241°F
TIBC1 - Tiburon Pier, San Francisco Bay, CA 21 mi99 min NNW 6 49°F 30.1244°F
FTPC1 - 9414290 - San Francisco, CA 23 mi53 min ENE 4.1G5.1 51°F 58°F30.13
RTYC1 - 9414523 - Redwood City, CA 28 mi53 min NW 1G1.9 52°F 55°F30.13
46237 - San Francisco Bar, CA (142) 32 mi53 min 53°F 56°F4 ft
46026 - SAN FRANCISCO - 18NM West of San Francisco, CA 43 mi33 min ESE 1.9G3.9 56°F5 ft30.14

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Wind History for Martinez-Amorco Pier, CA
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Airport Reports
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AirportDistAgeWind ktVisSkyWeatherTempDewPtRHinHg
KCCR BUCHANAN FIELD,CA 6 sm30 mincalm10 smClear55°F36°F47%30.12
KOAK METROPOLITAN OAKLAND INTL,CA 15 sm30 minSSW 0410 smA Few Clouds52°F43°F71%30.12
KHWD HAYWARD EXECUTIVE,CA 17 sm29 minW 0410 smClear55°F39°F54%30.11
KLVK LIVERMORE MUNI,CA 19 sm30 minvar 0310 smClear54°F36°F50%30.11

Wind History from CCR
(wind in knots)


Tide / Current for Suisun Point, Carquinez Strait, California
   
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Suisun Point
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Mon -- 12:59 AM PST     3.74 feet High Tide
Mon -- 05:20 AM PST     2.19 feet Low Tide
Mon -- 06:04 AM PST     Moonrise
Mon -- 07:14 AM PST     Sunrise
Mon -- 11:19 AM PST     5.86 feet High Tide
Mon -- 03:38 PM PST     Moonset
Mon -- 04:48 PM PST     Sunset
Mon -- 07:22 PM PST     -0.45 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

Suisun Point, Carquinez Strait, California, Tide feet
12
am
3.5
1
am
3.7
2
am
3.5
3
am
3
4
am
2.5
5
am
2.2
6
am
2.3
7
am
2.7
8
am
3.5
9
am
4.5
10
am
5.4
11
am
5.8
12
pm
5.7
1
pm
5.1
2
pm
4.1
3
pm
2.9
4
pm
1.7
5
pm
0.7
6
pm
-0
7
pm
-0.4
8
pm
-0.3
9
pm
0.3
10
pm
1.2
11
pm
2.3



Tide / Current for Roe Island S, Suisun Bay, California Current
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Roe Island S
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Mon -- 12:17 AM PST     0.65 knots Max Flood
Mon -- 03:17 AM PST     -0.00 knots Slack
Mon -- 05:03 AM PST     -0.56 knots Max Ebb
Mon -- 06:03 AM PST     Moonrise
Mon -- 07:14 AM PST     Sunrise
Mon -- 07:26 AM PST     0.00 knots Slack
Mon -- 10:30 AM PST     0.97 knots Max Flood
Mon -- 01:28 PM PST     -0.01 knots Slack
Mon -- 03:38 PM PST     Moonset
Mon -- 04:48 PM PST     Sunset
Mon -- 05:11 PM PST     -2.58 knots Max Ebb
Mon -- 10:15 PM PST     0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

Roe Island S, Suisun Bay, California Current, knots
12
am
0.6
1
am
0.6
2
am
0.4
3
am
0.1
4
am
-0.4
5
am
-0.6
6
am
-0.5
7
am
-0.2
8
am
0.2
9
am
0.6
10
am
0.9
11
am
0.9
12
pm
0.7
1
pm
0.2
2
pm
-0.6
3
pm
-1.6
4
pm
-2.3
5
pm
-2.6
6
pm
-2.5
7
pm
-2.2
8
pm
-1.8
9
pm
-1.1
10
pm
-0.2
11
pm
0.3




Weather Map
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GEOS Local Image of Central West Coast   
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Sacramento, CA,



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