Colma, CA Marine Weather and Tide Forecast
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Marine Weather and Tide Forecast for Colma, CA

April 21, 2024 1:50 AM PDT (08:50 UTC) Change Location
Sunrise 6:23 AM   Sunset 7:52 PM
Moonrise 5:00 PM   Moonset 4:24 AM 
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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.

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Marine Forecasts
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PZZ531 San Francisco Bay South Of The Bay Bridge- 903 Pm Pdt Sat Apr 20 2024

Tonight - W winds 10 to 15 knots, becoming sw 5 to 10 knots after midnight.

Sun - W winds 10 to 15 knots.

Sun night - W winds 10 to 15 knots.

Mon - SW winds 10 to 15 knots.

Mon night - SW winds 15 to 20 knots with gusts up to 25 knots.

Tue - SW winds 10 to 15 knots.

Tue night - SW winds 5 to 10 knots.

Wed - W winds 10 to 15 knots.

Thu - W winds 10 to 15 knots.

PZZ500 903 Pm Pdt Sat Apr 20 2024

Synopsis for the central california coast and bays including the Monterey bay - Greater farallones - .and cordell bank national marine sanctuaries - .
fresh to strong northerly winds continue to build across the coastal waters with near gale force gusts possible through early Monday morning. Gale force gusts are expected over the far northern outer waters in this same time period, but begin to diminish late Sunday night. Isolated gale force gusts remain possible across the far southern outer waters through Sunday night. Northwest swell builds through Monday as gusty conditions continue but looks to diminish by the middle of next week. Light southerly swell continues to move through the waters this weekend and through the upcoming work week.


7 Day Forecast for Marine Location Near Colma, CA
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Area Discussion for - San Francisco/Monterey Bay Area, CA
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FXUS66 KMTR 210550 AFDMTR

Area Forecast Discussion National Weather Service San Francisco CA 1050 PM PDT Sat Apr 20 2024

New AVIATION

SYNOPSIS
Issued at 247 AM PDT Sat Apr 20 2024

Slight warming trend across the interior through Monday with diminishing marine influences near the coast. Potential drizzle/light rain chances mid-to-late next week.

UPDATE
Issued at 904 PM PDT Sat Apr 20 2024

Clear and quiet across the region this evening outside of some passing high clouds. Modest winds aloft have dissipated the earlier low stratus along the coast, and it should remain well offshore a bit. However expect low-level northwest flow to promote renewed stratus intrusion around the Monterey Bay later tonight into Sunday morning. The going forecast is in good shape with no update necessary.

SHORT TERM
(This evening through Sunday)
Issued at 131 PM PDT Sat Apr 20 2024

After a summerlike start to the day with low clouds the afternoon features wall to wall sunshine across the Bay Area and Central Coast. Ample sunshine, building 500mb heights, and a warming airmass all contributed to warmer temperatures this afternoon.
Latest 24 hour trend shows many locations running 2 to 5 degrees warmer than yesterday. The warmest interior locations have a 20-30% chc of actually breaking 85 degrees.

Tonight and Sunday: Expecting less cloud cover thanks weak offshore flow develop at 2500 feet. Not strong offshore flow by any means, but a dry flow patter leading to better low level mixing and less stratus. That begin said, hi-res ensemble guidance does indicate some patchy stratus piling up around the Monterey peninsula and locally inland. This seems most plausible.
Given less morning clouds, even higher 500mb heights (building high pressure), and warming airmass (warmer 850mb temps) Sunday will feature even warmer temperatures. Max temps on Sunday will range from low 60s to low 70s coast/bays and 70s to mid 80s interior. Heat Risk potential still remains in the minor category.

LONG TERM
(Sunday night through next Friday)
Issued at 150 PM PDT Sat Apr 20 2024

To begin the workweek only subtle changes are expected with regards to sensible weather. Onshore flow at the sfc will keep cool temperatures at the coast, but interior locations will see another day of mild temperatures.

Tuesday and beyond: High pressure weakens and is slowly replaced by a weak upper level low off the coast on Tuesday. This feature will ultimately weaken and move inland as an open wave on Wednesday. This change in the longwave pattern will bring temperatures to below seasonal averages for Tuesday and Wednesday with max temps staying mainly in the 60s. There's also a 10-20% chc of some patchy drizzle Wednesday morning. Cool weather, but dry, remains for Thursday. Light rain and/or drizzle returns to the forecast Thursday night and Friday as a more defined upper level trough sweeps through the region. In addition, more clouds are expected with a colder airmass. Temperatures on Friday will struggle to reach 60 at the coast and the hills with interior locations staying in the 60s.

AVIATION
(06Z TAFS)
Issued at 1049 PM PDT Sat Apr 20 2024

VFR through the TAF period for most terminals. Moderate onshore winds from earlier this evening have helped to mix out much of the stratus. As a result, not expecting stratus to impact terminals tonight with the exception of Monterey Bay briefly. Otherwise, light winds persist overnight and increase into the afternoon tomorrow to become breezy. Stratus does not appear to return until well beyond the TAF period.

Vicinity of SFO...VFR. A FEW low clouds may drift over the terminal in the early morning of Sunday, but not expecting CIGs to form. Winds are still elevated at this hour, and are expected to remain so through much of the night, easing only to about 10 knots. In the afternoon of Sunday, moderate winds return, but are not expected to gust above 20 knots or so. Winds then ease into the evening hours of Sunday.

SFO Bridge Approach...Similar to SFO.

Monterey Bay Terminals...Stratus may make a brief appearance over the KMRY terminal in the early to mid morning of Sunday, bringing MVFR conditions. Aside from this, expecting VFR from the late morning onwards. Onshore winds return in the afternoon around 10-12 knots.

MARINE
(Tonight through next Friday)
Issued at 904 PM PDT Sat Apr 20 2024

Fresh to strong northerly winds continue to build across the coastal waters with near gale force gusts possible through early Monday morning. Gale force gusts are expected over the far northern outer waters in this same time period, but begin to diminish late Sunday night. Isolated gale force gusts remain possible across the far southern outer waters through Sunday night. Northwest swell builds through Monday as gusty conditions continue but looks to diminish by the middle of next week. Light southerly swell continues to move through the waters this weekend and through the upcoming work week.

MTR WATCHES/WARNINGS/ADVISORIES
CA...None.
PZ...Small Craft Advisory until 9 PM PDT Sunday for Pigeon Pt to Pt Pinos 10-60 NM-Pt Arena to Pt Reyes 0-10 nm.

Small Craft Advisory until 3 AM PDT Monday for Pt Pinos to Pt Piedras Blancas 0-10 nm.

Small Craft Advisory until 3 AM PDT Sunday for Pt Arena to Pt Reyes 10-60 NM.

Gale Warning from 3 AM to 9 PM PDT Sunday for Pt Arena to Pt Reyes 10-60 NM.




Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesinHgDewPt
PXOC1 - 9414311 - San Francisco (Pier 1), CA 8 mi50 min S 1.9G2.9 56°F
AAMC1 - 9414750 - Alameda, CA 9 mi50 min SW 7G8 56°F 62°F
FTPC1 - 9414290 - San Francisco, CA 9 mi50 min SE 1.9G2.9 54°F
PXSC1 9 mi50 min 58°F
OKXC1 - 9414776 - Oakland (Berth 34), CA 10 mi50 min SSE 2.9G5.1 57°F
OMHC1 - 9414769 - Oakland Middle Harbor Met, CA 10 mi50 min SSE 5.1G5.1
LNDC1 11 mi50 min SE 1.9G4.1 57°F
46237 - San Francisco Bar, CA (142) 14 mi80 min 54°F 55°F5 ft
TIBC1 - Tiburon Pier, San Francisco Bay, CA 15 mi126 min 0 54°F 30.0945°F
PPXC1 - 9414847 - Richmond (Point Potrero), CA 16 mi50 min SE 5.1G8 59°F
RTYC1 - 9414523 - Redwood City, CA 16 mi50 min 0G1.9 58°F 66°F
RCMC1 - 9414863 - Richmond, CA 17 mi50 min S 5.1G7 56°F 59°F
46026 - SAN FRANCISCO - 18NM West of San Francisco, CA 23 mi70 min 55°F7 ft
DPXC1 - 9415141 - Davis Point, San Pablo Bay, CA 27 mi50 min WSW 7G8.9 61°F
MZXC1 - 9415102 - Martinez-Amorco CA 29 mi50 min W 6G7 62°F 62°F
UPBC1 29 mi50 min WNW 7G11
PCOC1 - 9415144 - Port Chicago, CA 33 mi50 min SSW 4.1G9.9 56°F
1801589 34 mi80 min NW 18G21 53°F 54°F7 ft30.1253°F
PRYC1 - 9415020 - Point Reyes, CA 37 mi62 min 30.12
PSBC1 - 9415115 - Pittsburg (Suisun Bay), CA 38 mi50 min WNW 11G14 66°F
SFXC1 - San Francisco Bay Reserve, CA 42 mi125 min WSW 5.1 57°F 30.0446°F


Wind History for Alameda, CA
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Airport Reports
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AirportDistAgeWind ktVisSkyWeatherTempDewPtRHinHg
KSFO SAN FRANCISCO INTL,CA 5 sm54 minWNW 1310 smPartly Cloudy55°F52°F88%30.10
KOAK METROPOLITAN OAKLAND INTL,CA 11 sm57 minNNW 0310 smA Few Clouds55°F54°F94%30.12
KHAF HALF MOON BAY,CA 12 sm15 minNNW 055 smOvercast Mist 54°F54°F100%30.11
KSQL SAN CARLOS,CA 15 sm15 mincalm9 smClear55°F46°F72%30.11
KHWD HAYWARD EXECUTIVE,CA 16 sm56 mincalm10 smClear57°F48°F72%30.10
Link to 5 minute data for KSFO


Wind History from SFO
(wind in knots)
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Tide / Current for Oyster Point Marina, San Francisco Bay, California
   
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Oyster Point Marina
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Sun -- 05:24 AM PDT     Moonset
Sun -- 05:50 AM PDT     0.76 feet Low Tide
Sun -- 06:25 AM PDT     Sunrise
Sun -- 11:54 AM PDT     5.60 feet High Tide
Sun -- 05:43 PM PDT     1.28 feet Low Tide
Sun -- 06:00 PM PDT     Moonrise
Sun -- 07:51 PM PDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

Oyster Point Marina, San Francisco Bay, California, Tide feet
12
am
6.5
1
am
5.8
2
am
4.6
3
am
3.2
4
am
1.9
5
am
1
6
am
0.8
7
am
1.2
8
am
2.2
9
am
3.4
10
am
4.5
11
am
5.3
12
pm
5.6
1
pm
5.2
2
pm
4.3
3
pm
3.1
4
pm
2.1
5
pm
1.4
6
pm
1.3
7
pm
1.8
8
pm
2.8
9
pm
4.2
10
pm
5.4
11
pm
6.3



Tide / Current for Sierra Point 1.3 mi ENE, South San Francisco Bay, California Current
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Sierra Point 1.3 mi ENE
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Sun -- 02:57 AM PDT     -1.04 knots Max Ebb
Sun -- 05:24 AM PDT     Moonset
Sun -- 06:03 AM PDT     0.00 knots Slack
Sun -- 06:25 AM PDT     Sunrise
Sun -- 09:10 AM PDT     0.94 knots Max Flood
Sun -- 12:11 PM PDT     -0.00 knots Slack
Sun -- 03:10 PM PDT     -0.95 knots Max Ebb
Sun -- 06:00 PM PDT     Moonrise
Sun -- 06:11 PM PDT     0.01 knots Slack
Sun -- 07:51 PM PDT     Sunset
Sun -- 09:13 PM PDT     0.91 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

Sierra Point 1.3 mi ENE, South San Francisco Bay, California Current, knots
12
am
-0.1
1
am
-0.6
2
am
-1
3
am
-1
4
am
-0.9
5
am
-0.6
6
am
-0
7
am
0.5
8
am
0.8
9
am
0.9
10
am
0.9
11
am
0.6
12
pm
0.1
1
pm
-0.4
2
pm
-0.8
3
pm
-0.9
4
pm
-0.9
5
pm
-0.6
6
pm
-0.1
7
pm
0.4
8
pm
0.7
9
pm
0.9
10
pm
0.8
11
pm
0.6




Weather Map
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GEOS Local Image of Central West Coast   
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San Francisco Bay Area, CA,



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