Tuesday, September28, 2021
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Marine Weather and Tides
Redwood City, 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 7:01AMSunset 6:57PM Tuesday September 28, 2021 10:24 AM PDT (17:24 UTC) Moonrise 10:46PMMoonset 1:22PM Illumination 52% Phase: Third Quarter Moon; Moon at 22 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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PZZ531 San Francisco Bay South Of The Bay Bridge- 807 Am Pdt Tue Sep 28 2021
.small craft advisory in effect from 3 pm pdt this afternoon through this evening...
Today..NW winds 5 to 15 kt...becoming 10 to 20 kt with gusts up to 30 kt in the afternoon.
Tonight..W winds 15 to 20 kt with gusts up to 30 kt.
Wed..W winds 10 to 15 kt.
Wed night..W winds 5 to 10 kt.
Thu..W winds 5 to 10 kt.
Thu night..NW winds around 5 kt.
Fri..W winds 10 to 15 kt.
Sat..W winds 5 to 10 kt.
PZZ500 807 Am Pdt Tue Sep 28 2021
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... Increasing northwest winds over the waters today. Strongest winds are expected along the big sur coast south of point sur. Winds will remain elevated through mid week before diminishing. Seas remain mixed as a longer period and larger northwest swell has arrived along with a weaker southerly swell. The combination of larger swell and stronger winds will result in hazardous seas conditions over the waters through Wednesday, particularly for smaller vessels. Seas will begin to subside on Wednesday.


7 Day Forecast for Marine Location Near Redwood City, CA
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location: 37.52, -122.2     debug


Area Discussion for - San Francisco/Monterey Bay Area, CA
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FXUS66 KMTR 281149 AFDMTR

Area Forecast Discussion National Weather Service San Francisco Bay Area 449 AM PDT Tue Sep 28 2021

SYNOPSIS. Seasonably cool conditions will continue Tuesday with breezy northerly winds in wake of yesterday's frontal passage. A warming and drying trend is then expected through late week and into the weekend with diminishing winds.

DISCUSSION. as of 03:34 AM PDT Tuesday . Precipitation associated with a frontal boundary that moved through the region during the past 12-18 hours has come to an end early this morning. The last place to report measurable rainfall was across the Monterey Peninsula where up to a few hundredths of an inch were reported (0.01" at KMRY). In wake of the frontal passage, only seeing a few low level clouds mainly in the hills within the increased northwest flow. Breezy winds will also develop and persist through much of the day as the mid/upper level trough axis shifts inland and away from the coast. Generally speaking, look for wind gusts of 25 to 35 mph near the coast and in the hills with gusts up to around 45 mph in the region's peaks. Fire concerns initially will be minimal given the recent rain and lingering boundary layer moisture. Additionally, temperatures look to remain a few to as much as 10 deg F below seasonal averages this afternoon.

As brief offshore flow develops in the region's higher elevations tonight through Wednesday night, look for warming and drying trend to occur. This will likely result in enhanced fire weather concerns in the North Bay Mountains, East Bay Hills and the Diablo Range through mid/late week. However, wind speeds are unlikely to reach critical thresholds. That said, critically dry conditions are expected across the interior in the coming days as high pressure builds over the region. As a result, we will continue to monitor fire weather concerns in the coming days.

By late week, look for afternoon temperatures across the interior to warm to 5-10 deg F above seasonal averages along with mostly clear sky conditions. Mild conditions are also likely near the coast each afternoon with the potential for mostly sunny skies there also. This pattern is likely to hold through the upcoming weekend as well. Forecast ensembles then indicate the return of troughing along the West Coast by the middle of next week.

AVIATION. as of 4:44 AM PDT Tuesday . For the 12z TAFs. Rain chances have pushed East and out of the area with post front clearing of the skies occuring. This has lead to widespread VFR, and with stratus failing to move inland Tuesday night, the VFR is expected to last through the TAF period across the area. Winds will begin to increase in the late morning, leading to a gusty afternoon. Surface winds look to back off into the evening, but keep their strength aloft in the North and East Bay, leading to LLWS concerns into Tuesday.

Vicinity of KSFO . VFR through the TAF period. Expect mild to moderate winds to last into the early afternoon. Westerly winds will increase again for Tuesday afternoon with peak winds increasing to around 18 kts with around 24 kt gusts possible. These winds look to last into the Tuesday night before weakening into the late night.

KSFO Bridge Approach . Similar to KSFO.

Monterey Bay . VFR through the TAF period. Expect mild winds to last into the early afternoon. Westerly winds will gain strength in the afternoon, leading to gusty conditions which will last into the early night.

BEACHES. The first larger northwest swell of the season continues. Swell heights of 8 to 10 feet at 13 to 15 seconds are forecast. Expect an increased risk of moderate to large breaking waves (13 to 17 feet) and stronger rip currents. Additionally, increasing winds behind a cold frontal passage in combination with this building swell may cause waves to run up farther along area beaches than usual. Waves will be capable of knocking down beach goers with a risk of being dragged into the cold turbulent ocean waters. Therefore, a Beach Hazards Statement has been issued from through 11 PM Tuesday. This hazard is primarily for west to northwest facing beaches. Caution is urged, and it is recommended to stay off of rocks and jetties.

Never turn your back to the ocean.

Northwest swell will gradually subside on Wednesday.

MARINE. as of 04:45 AM PDT Tuesday . Northwest winds continue over the waters. Locally stronger winds will persist along the Big Sur coast south of Point Sur. Winds will then gradually strengthen later on Tuesday and remain elevated through mid to late week. Mixed seas remain with a moderate period northwest swell and a longer period southerly swell. An additional larger northwest swell will arrive tonight with seas quickly building into Tuesday. The combination of stronger winds and building swell will result in hazardous seas conditions, particularly for smaller vessels. Seas will begin to subside on Wednesday.

MTR WATCHES/WARNINGS/ADVISORIES. Tday. SCA . Pigeon Pt to Pt Pinos 0-10 nm SCA . Pt Arena to Pt Reyes 0-10 nm SCA . Pt Reyes to Pigeon Pt 0-10 nm SCA . Pt Pinos to Pt Piedras Blancas 0-10 nm SCA . Pt Arena to Pigeon Pt 10-60 nm SCA . Pigeon Pt to Pt Piedras Blancas 10-60 nm SCA . Mry Bay from 9 AM SCA . SF Bay from 3 PM



PUBLIC FORECAST: RGass AVIATION: Murdock MARINE: Murdock

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Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
RTYC1 - 9414523 - Redwood City, CA 1 mi54 min NW 11 G 13 60°F 1019.5 hPa
AAMC1 - 9414750 - Alameda, CA 18 mi54 min NW 4.1 G 11 61°F 67°F1019.1 hPa
LNDC1 19 mi54 min N 8 G 11 61°F 1018.6 hPa
OKXC1 - 9414776 - Oakland (Berth 34), CA 21 mi54 min N 8.9 G 12 60°F 1018.8 hPa
OBXC1 21 mi54 min 60°F
OMHC1 - 9414769 - Oakland Middle Harbor Met, CA 21 mi54 min NW 9.9 G 12
PXOC1 - 9414311 - San Francisco (Pier 1), CA 22 mi54 min NW 5.1 G 7 61°F 1017.8 hPa
PXSC1 22 mi54 min 62°F 52°F
FTPC1 - 9414290 - San Francisco, CA 24 mi54 min SW 2.9 G 5.1 60°F 66°F1018.7 hPa
PPXC1 - 9414847 - Richmond (Point Potrero), CA 28 mi54 min N 9.9 G 15 62°F 1019.1 hPa
46237 - San Francisco Bar, CA (142) 29 mi54 min 58°F 60°F9 ft
RCMC1 - 9414863 - Richmond, CA 30 mi54 min NW 6 G 8 60°F 65°F1018.9 hPa
MZXC1 - 9415102 - Martinez-Amorco CA 36 mi54 min WNW 13 G 14 59°F 67°F1018.8 hPa
DPXC1 - 9415141 - Davis Point, San Pablo Bay, CA 37 mi54 min NW 6 G 7 59°F 1018.7 hPa
46012 - HALF MOON BAY - 24NM South Southwest of San Francisco, CA 38 mi34 min NNW 19 G 25 59°F 13 ft1019.2 hPa53°F
46026 - SAN FRANCISCO - 18NM West of San Francisco, CA 38 mi34 min NNW 18 G 21 59°F10 ft1019.4 hPa
PCOC1 - 9415144 - Port Chicago, CA 38 mi54 min W 8.9 G 12 60°F 67°F1018.6 hPa
PSBC1 - 9415115 - Pittsburg (Suisun Bay), CA 40 mi54 min WNW 11 G 13 62°F 1018.1 hPa
46269 41 mi54 min 57°F 59°F6 ft
SFXC1 - San Francisco Bay Reserve, CA 48 mi99 min WNW 5.1 58°F 1019 hPa47°F

Wind History for Redwood City, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
San Carlos Airport, CA3 mi37 minWNW 1010.00 miA Few Clouds63°F48°F60%1019 hPa
Palo Alto Airport, CA5 mi97 minWNW 810.00 miA Few Clouds61°F50°F68%1018.6 hPa
Hayward, Hayward Air Terminal, CA11 mi30 minVar 310.00 miFair64°F47°F54%1019.2 hPa
San Francisco, San Francisco International Airport, CA11 mi28 minWNW 910.00 miA Few Clouds65°F47°F52%1018.4 hPa
Oakland, Metro Oakland International Airport, CA12 mi31 minNW 1110.00 miA Few Clouds65°F47°F52%1018.7 hPa
Half Moon Bay Airport, CA16 mi29 minN 12 G 176.00 miFair with Haze61°F54°F77%1018.6 hPa
San Jose, San Jose International Airport, CA18 mi31 minNW 1210.00 miA Few Clouds65°F46°F51%1018 hPa
Livermore, Livermore Municipal Airport, CA24 mi31 minN 010.00 miFair61°F46°F58%1018 hPa
San Jose / Reid / Hillv, CA24 mi34 minWNW 810.00 miClear63°F46°F56%1018.3 hPa

Link to 5 minute data for KSQL

Wind History from SQL (wind in knots)
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Last 24hrCalmNW7NW8W6W8SW12
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W14SW11W7W6W5W14W8W8NW7CalmNW6NW6NW10NW7W8W8NW10
1 day agoCalmCalmW8W10W11W12W12
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W9NW8W5CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalm
2 days agoNW5N10--N6N11N10W9NW8W10W103CalmW7W7CalmW6W3W3CalmCalmCalmCalmCalm--

Tide / Current Tables for Redwood Creek entrance (inside), San Francisco Bay, California
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Redwood Creek entrance (inside)
Click for Map
Tue -- 12:54 AM PDT     0.98 feet Low Tide
Tue -- 07:02 AM PDT     Sunrise
Tue -- 08:25 AM PDT     6.16 feet High Tide
Tue -- 01:02 PM PDT     3.62 feet Low Tide
Tue -- 02:21 PM PDT     Moonset
Tue -- 06:05 PM PDT     7.11 feet High Tide
Tue -- 06:55 PM PDT     Sunset
Tue -- 06:58 PM PDT     Last Quarter
Tue -- 11:45 PM PDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.211.32.13.14.15.15.86.16.15.54.73.93.63.94.65.66.67.16.96.35.34.12.8

Tide / Current Tables for Little Coyote Pt 3.1 mi ENE, South San Francisco Bay, California Current
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Little Coyote Pt 3.1 mi ENE
Click for Map
Tue -- 02:48 AM PDT     0.43 knots Max Flood
Tue -- 06:54 AM PDT     -0.00 knots Slack
Tue -- 07:02 AM PDT     Sunrise
Tue -- 08:28 AM PDT     -0.25 knots Max Ebb
Tue -- 11:24 AM PDT     0.00 knots Slack
Tue -- 02:22 PM PDT     Moonset
Tue -- 02:23 PM PDT     0.24 knots Max Flood
Tue -- 05:30 PM PDT     -0.00 knots Slack
Tue -- 06:55 PM PDT     Sunset
Tue -- 06:58 PM PDT     Last Quarter
Tue -- 08:45 PM PDT     -0.62 knots Max Ebb
Tue -- 11:45 PM PDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.10.30.40.40.40.30.2-0-0.2-0.2-0.1-00.10.20.20.20.20.1-0.1-0.3-0.6-0.6-0.5-0.3

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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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