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Marine Weather and Tide Forecast for Mountain House, CA

April 25, 2025 6:41 PM PDT (01:41 UTC)
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Sunrise 6:14 AM   Sunset 7:52 PM
Moonrise 3:56 AM   Moonset 4:43 PM 
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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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NOTE: Zones were updated 3/20/2025
PZZ530 San Pablo Bay, Suisun Bay, The West Delta And The San Francisco Bay North Of The Bay Bridge- 302 Pm Pdt Fri Apr 25 2025

Tonight - W wind 10 to 15 kt, easing to 5 to 10 kt late this evening and overnight. Waves around 2 ft or less. A slight chance of rain early this evening.

Sat - W wind 5 to 10 kt. Waves around 2 ft or less.

Sat night - W wind 5 to 10 kt. Waves around 2 ft or less. A chance of rain.

Sun - W wind 5 to 10 kt. Waves around 2 ft or less.

Sun night - W wind 5 to 10 kt, easing to around 5 kt after midnight. Waves around 2 ft or less.

Mon - SW wind around 5 kt, veering to W in the afternoon. Waves around 2 ft or less.

Mon night - SW wind 5 to 10 kt. Waves around 2 ft or less.

Tue - SW wind around 5 kt. Waves around 2 ft or less.

Tue night - SW wind 5 to 10 kt. Waves around 2 ft or less.

Wed - SW wind 5 to 10 kt. Waves around 2 ft or less.

Wed night - SW wind 5 to 10 kt. Waves around 2 ft or less.
PZZ500 302 Pm Pdt Fri Apr 25 2025

Synopsis for the central california coast and bays including the Monterey bay - Greater farallones - .and cordell bank national marine sanctuaries - .
scattered showers across the coastal waters and bays will continue today through early Sunday morning. Rough seas will develop Saturday across the northern coastal waters with gusty north winds. Drier more stable high pressure builds in across the region for next week.

7 Day Forecast for Marine Location Near Mountain House, CA
   
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Tide / Current for Borden Highway Bridge, Old River, San Joaquin River, California
  
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Borden Highway Bridge
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Fri -- 04:56 AM PDT     Moonrise
Fri -- 05:23 AM PDT     2.94 feet High Tide
Fri -- 06:17 AM PDT     Sunrise
Fri -- 11:48 AM PDT     0.10 feet Low Tide
Fri -- 05:42 PM PDT     Moonset
Fri -- 05:43 PM PDT     2.62 feet High Tide
Fri -- 07:51 PM PDT     Sunset
Fri -- 11:39 PM PDT     0.24 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
        
  Sorry, Borden Highway Bridge, Old River, San Joaquin River, California does not exist in database. Press Edit above and select a valid nearby location.

Borden Highway Bridge, Old River, San Joaquin River, California, Tide feet
12
am
0.2
1
am
0.7
2
am
1.4
3
am
2.1
4
am
2.6
5
am
2.9
6
am
2.9
7
am
2.5
8
am
1.8
9
am
1.2
10
am
0.6
11
am
0.2
12
pm
0.1
1
pm
0.3
2
pm
0.9
3
pm
1.6
4
pm
2.2
5
pm
2.5
6
pm
2.6
7
pm
2.3
8
pm
1.8
9
pm
1.2
10
pm
0.6
11
pm
0.3

Tide / Current for Vulcan Island .5 mi E, San Joaquin River, California Current
  
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Vulcan Island .5 mi E
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Fri -- 02:16 AM PDT     0.75 knots Max Flood
Fri -- 04:55 AM PDT     Moonrise
Fri -- 05:40 AM PDT     -0.00 knots Slack
Fri -- 06:16 AM PDT     Sunrise
Fri -- 08:44 AM PDT     -0.53 knots Max Ebb
Fri -- 12:12 PM PDT     0.00 knots Slack
Fri -- 02:52 PM PDT     0.64 knots Max Flood
Fri -- 05:41 PM PDT     Moonset
Fri -- 06:02 PM PDT     -0.00 knots Slack
Fri -- 07:51 PM PDT     Sunset
Fri -- 08:45 PM PDT     -0.47 knots Max Ebb
Fri -- 11:58 PM PDT     0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
        
  Sorry, Vulcan Island .5 mi E, San Joaquin River, California Current does not exist in database. Press Edit above and select a valid nearby location.

Vulcan Island .5 mi E, San Joaquin River, California Current, knots
12
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0.3
1
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0.6
2
am
0.7
3
am
0.7
4
am
0.5
5
am
0.2
6
am
-0.1
7
am
-0.3
8
am
-0.5
9
am
-0.5
10
am
-0.5
11
am
-0.3
12
pm
-0.1
1
pm
0.3
2
pm
0.6
3
pm
0.6
4
pm
0.6
5
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0.3
6
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0
7
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-0.3
8
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-0.4
9
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-0.5
10
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-0.4
11
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-0.2

Area Discussion for San Francisco/Monterey Bay Area, CA
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NOTE: mouseover dotted underlined text for definition
FXUS66 KMTR 251959 AFDMTR

Area Forecast Discussion National Weather Service San Francisco CA Issued by National Weather Service Eureka CA 1259 PM PDT Fri Apr 25 2025

New SYNOPSIS, SHORT TERM, LONG TERM

SYNOPSIS
Issued at 1247 PM PDT Fri Apr 25 2025

Cool, cloudy, and for some, rainy conditions are forecast over the next 24 hours. Significant impacts due to rain or isolated storms are not anticipated. Some mountain top snow is also forecast across the Santa Lucia Range. Sunday and into next week appear rain-free with a slight warming trend. Thereafter, the upper air pattern may support opportunities for light rain next weekend.

SHORT TERM
(This afternoon through Saturday Night)
Issued at 1247 PM PDT Fri Apr 25

-Short Term Key Messages *Cool and cloudy conditions *Showers and isolated thunderstorm chances *Mountain top light snow

Showers will continue this afternoon and evening across southern portions of the Bay Area as well as the Central Coast. The primary culprit appears to be a couple of PV anomalies along the 2PVU surface rotating around the main upper low/trough. Rain will still remain on the "lighter" end and 12 hour rainfall amounts have largely tallied around a few hundredths of an inch across the region.

As the main upper trough digs southward, we'll see a re-invigoration of marine showers that will slide eastward. Guidance has been rather insistent on the Big Sur Coastline being the favored region for convection and given the range in the forecast, I'll nudge PoPs upward. As the upper low continues to pinwheel down the Central Coast, some modest 850-700mb WAA or trough of warm air aloft may result in some precipitation across the North Bay early Saturday morning. Currently, the greatest PoPs reside down across the Central Coast with rain chances ranging from 60-70% with PoPs around 30-50% across the North Bay. This leaves the heart of the Bay Area in a minimum PoP wise, but even here, a few sprinkles or light showers will remain possible (albeit around 20%).

As far as the potential for isolated thunderstorms, this remains a possibility, though the probability is diminishing. Forecast soundings indicate lapse rates may not be quite as steep (likely do to some slight shifts in the location of the coldest air aloft), but still supportive of more vigorous showers with a few isolated lightning strikes. For now, have confined the risk for a few storms to southern Monterey and San Benito counties. At this time, widespread severe weather is not anticipated, but brief bouts of accumulating hail may result in slick driving conditions.

There still remains an opportunity for some snow across the higher terrain of the Santa Lucia Range and potentially portions of the Diablo Range. Overall, not anticipating much in the way of significant impacts due to snow.



LONG TERM
(Sunday through next Thursday)
Issued at 1247 PM PDT Fri Apr 25 2025

-Long Term Key Messages *Lingering rain chances on Sunday Morning *Modest warming trend, 'Minor' HeatRisk next week

A slight change to the long term forecast and there now remains a potential (20-30% chance ) for lingering precipitation after sunrise Sunday. As the upper low departs, large scale ascent should ramp down. However, low level moisture remains plentiful and there's still an opportunity for largely light drizzle with some breezy conditions (10-20 mph wind gusts) as the surface pressure gradient remains a little tight.

Longer term model projections support a handful of days that will be dominated by shortwave ridging. This will mean a gradual warming trend, with "minor" HeatRisk returning. This type of heat isn't overly impactful, except to those that are exceptionally sensitive to heat (very young and elderly). As we progress into the first weekend of May, there are some signs that the pattern evolve such that a couple of upper troughs slide through the area. This may mean additional rain chances in the day 8-10 time frame according to a couple of the ensemble clusters. For now, we'll hold serve with a largely rain-free forecast given the time of year and the consensus of a dry period among a majority of the NWP. Of course, early May rains will be beneficial as it pertains to delaying the start of our dry/spring fire season.

AVIATION
(18Z TAFS)
Issued at 1110 AM PDT Fri Apr 25 2025

Low pressure spins offshore leaving much of the area with VFR cigs, though a few areas have seen cigs fall to MVFR for a few hours. This should generally remain the trend for the forecast period, unless a shower moves over the region. Tomorrow morning, when rain chances look to pick up, we may see longer stretches of MVFR for terminals around KSFO and down the Central Coast, though confidence is low on timing and exact locations of showers.

Vicinity of SFO...VFR conditions should prevail through much of the day, with VCSH being possible through the evening. Showers should start to increase by Saturday morning and perhaps bring a brief period of MVFR conditions. Conditions look to improve mid to late morning with VFR conditions prevailing through the day.

SFO Bridge Approach...Similar to SFO.

Monterey Bay Terminals...Similar story as the rest of the TAF sites, though Monterey Bay Terminals likely have the best shots of showers through the forecast period and into Saturday. Generally VFR conditions will prevail, though MVFR conditions will be possible with any stronger showers that move through. There is a small chance for thunderstorms for the southern half of Monterey and San Benito counties.

MARINE
(Today through Wednesday)
Issued at 842 AM PDT Fri Apr 25 2025

A chilly upper level low arriving from the northwest will result in scattered showers across the coastal waters and bays today through Sunday morning. Gusty northwest winds and rough seas return across the northern outer coastal waters late Saturday. Dry weather returns early next week due to an eastward moving high pressure system over the Pacific.

MTR WATCHES/WARNINGS/ADVISORIES
CA...None.
PZ...Small Craft Advisory from 3 PM to 9 PM PDT Saturday for Pt Arena to Pt Reyes 10-60 NM.


Weather Reporting Stations
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Stations Dist Age Wind AirWater WavesinHgDewPt
PSBC1 - 9415115 - Pittsburg (Suisun Bay), CA 22 mi54 minWSW 6G8.9 60°F 29.92
PCOC1 - 9415144 - Port Chicago, CA 29 mi54 minW 14G16 58°F 29.93
MZXC1 - 9415102 - Martinez-Amorco CA 33 mi54 minWSW 9.9G13 57°F 62°F29.9342°F
UPBC1 33 mi54 minW 15G19
LNDC1 38 mi54 minWSW 8.9G12 55°F 29.95
AAMC1 - 9414750 - Alameda, CA 39 mi54 minWSW 8.9G11 55°F 60°F29.96
DPXC1 - 9415141 - Davis Point, San Pablo Bay, CA 40 mi54 minSW 14G17 56°F 29.93
OKXC1 - 9414776 - Oakland (Berth 34), CA 40 mi54 minWNW 7G12 54°F 29.96
OMHC1 - 9414769 - Oakland Middle Harbor Met, CA 40 mi54 minWSW 11G14
OBXC1 41 mi54 min 55°F 44°F
RTYC1 - 9414523 - Redwood City, CA 41 mi54 minE 2.9G4.1 54°F 63°F29.96
PPXC1 - 9414847 - Richmond (Point Potrero), CA 42 mi54 minSW 8.9G12 55°F 29.96
PXOC1 - 9414311 - San Francisco (Pier 1), CA 44 mi54 minWSW 5.1G9.9 55°F 29.93
PXSC1 44 mi54 min 56°F 44°F
RCMC1 - 9414863 - Richmond, CA 45 mi54 minSSW 4.1G9.9 55°F 58°F29.95
TIBC1 - Tiburon Pier, San Francisco Bay, CA 47 mi118 min0 53°F 29.9542°F
FTPC1 - 9414290 - San Francisco, CA 48 mi54 minSW 5.1G8 54°F 29.96


Wind History for Port Chicago, CA
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Airport Reports
   
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AirportDistAgeWind ktVisSkyWeatherAirDewPtRHinHg
KTCY TRACY MUNI,CA 12 sm26 minWSW 0910 smOvercast57°F41°F55%29.92
KLVK LIVERMORE MUNI,CA 16 sm48 minW 0910 smOvercast55°F41°F58%29.93
KSCK STOCKTON METROPOLITAN,CA 18 sm46 minWNW 1110 smA Few Clouds61°F45°F55%29.91

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





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