Monday, June21, 2021
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Marine Weather and Tides
North Fair Oaks, 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 5:46AMSunset 8:34PM Monday June 21, 2021 12:49 AM PDT (07:49 UTC) Moonrise 4:22PMMoonset 2:13AM Illumination 86% Phase: Waxing Gibbous; Moon at 11 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- 852 Pm Pdt Sun Jun 20 2021
Tonight..NW winds 5 to 15 kt.
Mon..W winds 5 to 15 kt.
Mon night..NW winds 5 to 15 kt.
Tue..W winds 10 to 20 kt with gusts up to 25 kt.
Tue night..W winds 5 to 15 kt.
Wed..W winds 5 to 15 kt.
Thu..W winds 5 to 15 kt.
PZZ500 852 Pm Pdt Sun Jun 20 2021
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... South to southwest winds will persist through early this week. Locally breezy west to southwest winds are expected north of the bay bridge in the afternoons and evenings the next couple of days. Winds will gradually shift back out of west to northwest mid to late week. Seas remain northwest at 9 to 11 seconds along with a marginal southerly swell.


7 Day Forecast for Marine Location Near North Fair Oaks, CA
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location: 37.47, -122.18     debug


Area Discussion for - San Francisco/Monterey Bay Area, CA
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FXUS66 KMTR 210624 AFDMTR

Area Forecast Discussion National Weather Service San Francisco Bay Area 1124 PM PDT Sun Jun 20 2021

SYNOPSIS. As the marine layer has reestablished and lower pressure develops just west of the coast, cooler temperatures will continue for much of the week and possibly drop below average by midweek. Expect breezy conditions in the afternoon and evening hours for the next few days. The next chance for warmer temperatures looks to be next weekend with inland areas returning to the 90s.

DISCUSSION. as of as of 09:10 PM PDT Sunday . Infrared satellite imagery shows the offshore low pressure system centered near 34.5 N 128.5 W which is about 350 miles west of the Monterey Peninsula. This low is still forecast to gradually track into our region this week which will bring a cooler trend along with higher humidity values Monday through midweek. We'll also see a trend of breezy conditions in the afternoons and evenings for the first half of the week as onshore flow strengthens.

Stratus is once again banked up against the entire central CA and Bay Area coastline. The latest Fort Ord Profiler observations indicate that the marine layer is gradually deepening (now around 1800-2000 ft) which will allow for a greater marine influence inland (thanks to that low pressure system). The NAM model continues to hint at drizzle along the coast so don't be surprised if you have to use your windshield wipers intermittently closer to the coast.

Willow Fire did get a small burst of growth later this afternoon into early evening today. We saw the smoke plume become more prominent on satellite as it tracked northward towards the Bay Area. However, the smoke was elevated and did not have near surface impacts except closer to the actual fire perimeter. Ridgetop winds look a little stronger Monday night into Tuesday near the fire as the low gets closer to the coast, but the good news is that this will also coincide with cooler and moister conditions.

Looking ahead, the GFS and ECMWF are not in good alignment for the end of this week. There's still uncertainty as to when the next warm up will start this weekend. The ECMWF has this low pressure being more robust and staying over our CWA into Saturday morning before getting pushed northward by strengthening high pressure over the Four Corners region. Meanwhile, the GFS shows the high pressure pushing that low out of our area by early Friday. So while we are expecting a warm up this weekend, the confidence isn't strong as to it starting by Friday or by Saturday.

PREV DISCUSSION. as of 01:48 PM PDT Sunday . Seems appropriate that sunny skies accompany the Summer Solstice. Most of the Bay Area is experiencing sunny skies this afternoon, but coastal areas on the other hand are hanging onto some clouds. Despite the inland sunshine temperatures are actually running a few degrees cool across the interior. 5-10 degrees cooler in fact.

As for the Willow Fire - conditions have improved a little this afternoon with less smoke production, but satellite still shows some heat. Nearby weather stations are still relatively hot and dry with temps in the low 90s and RH dropping into the teens. HRRR smoke appears to be a little over done for this afternoon, but some smoke/haze is still possible N and E and of the Willow Fire.

For tonight . low clouds along the coast will move inland again. Some patchy fog/drizzle will also be possible.

The upper level low pressure lurking off the CA coast will continue to slowly drift eastward. This low will help to deepen the night/morning marine layer and cause further cooling/moistening of the region. Temperatures will cool a few degrees each day through Wednesday with more widespread 60s/70s at the coast and 70s/low 90s inland. A few of the models spit out some precip as the low approaches over the waters and coast. This is most likely drizzle. Therefore patchy drizzle has been added to the forecast. Wouldn't be surprised to see a few bucket tips Tuesday and Wednesday mornings. The previous discussion mentioned the possibility of thunderstorms over NorCal. Lastest guidance stills shows some lift and moisture Monday and Tuesday, but primarily north of the Bay Area.

The upper low meanders slowly to the NE Wednesday through Friday keeping relatively quiet and cooler weather in places. What happens there after is lower confidence as medium range models shows are almost out of phase. The EC keeps the low/trough in place and the GFS shows a robust ridge with more of a heat signal. Ensembles fall somewhere in the middle. Given the uncertainty will allow for a slight warming trend next weekend, but not increase too much yet. Far interior locations have a shot at triple digit heat once again Stay tuned.

AVIATION. For the 06z TAFs. Evening satellite is showing the marine layer spreading deeper into interior valleys. This trend will continue as low pressure sits off the coast of California. Therefore, look for cigs to develop around the region through the night. Smoke will continue to be an issue as the Willow fire remains active. Look for clearing tomorrow from the cloud decks, but smoke will linger through the day.

Vicinity of KSFO . The marine layer is slowly returning. MVFR/IFR conditions expected through mid to late tomorrow morning. Onshore winds tomorrow afternoon around 15kts.

SFO Bridge Approach . Wildfire smoke may occasionally reduce slant range visibility, otherwise similar to KSFO.

Monterey Bay Terminals . IFR cigs are expected overnight with clearing mid morning Monday. Smoke could be an issue, especially out to the east of the airports.

MARINE. as of 10:54 PM PDT Sunday . South to southwest winds will persist through early this week. Locally breezy west to southwest winds are expected north of the Bay Bridge in the afternoons and evenings the next couple of days. Winds will gradually shift back out of west to northwest mid to late week. Seas remain northwest at 9 to 11 seconds along with a marginal southerly swell.

MTR WATCHES/WARNINGS/ADVISORIES. Tngt. NONE.



PUBLIC FORECAST: Bingaman AVIATION: Dhuyvetter/BFG MARINE: Dhuyvetter

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Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
RTYC1 - 9414523 - Redwood City, CA 3 mi49 min W 5.1 G 6 60°F 1012.9 hPa (+1.2)
AAMC1 - 9414750 - Alameda, CA 22 mi49 min W 7 G 11 58°F 70°F1012.7 hPa (+0.8)
LNDC1 23 mi49 min W 7 G 9.9 58°F 1012.4 hPa (+0.8)
OMHC1 - 9414769 - Oakland Middle Harbor Met, CA 24 mi49 min WSW 11 G 13
OKXC1 - 9414776 - Oakland (Berth 34), CA 25 mi49 min W 9.9 G 12 58°F 1012.3 hPa (+0.9)
OBXC1 25 mi55 min 58°F
PXOC1 - 9414311 - San Francisco (Pier 1), CA 25 mi49 min W 8.9 G 13 56°F 1011.5 hPa (+1.1)
PXSC1 26 mi49 min 58°F 58°F
FTPC1 - 9414290 - San Francisco, CA 28 mi49 min WSW 6 G 9.9 56°F 58°F1012.5 hPa (+0.8)
PPXC1 - 9414847 - Richmond (Point Potrero), CA 32 mi49 min SW 12 G 17 58°F 1012.7 hPa (+0.9)
TIBC1 - Tiburon Pier, San Francisco Bay, CA 32 mi92 min N 8 56°F 1012 hPa
46237 - San Francisco Bar, CA (142) 33 mi49 min 55°F4 ft
RCMC1 - 9414863 - Richmond, CA 34 mi49 min WSW 7 G 12 57°F 63°F1012.6 hPa (+1.3)
46012 - HALF MOON BAY - 24NM South Southwest of San Francisco, CA 38 mi29 min 9.7 G 14 56°F 54°F
46269 38 mi49 min 57°F 60°F3 ft
MZXC1 - 9415102 - Martinez-Amorco CA 39 mi49 min W 16 G 22 58°F 69°F1011.6 hPa (+1.6)
UPBC1 39 mi49 min W 20 G 25
46026 - SAN FRANCISCO - 18NM West of San Francisco, CA 40 mi39 min S 3.9 G 5.8 54°F1013.2 hPa
PCOC1 - 9415144 - Port Chicago, CA 41 mi49 min WSW 20 G 24 59°F 71°F1011.1 hPa (+1.4)
DPXC1 - 9415141 - Davis Point, San Pablo Bay, CA 41 mi49 min WSW 15 G 19 59°F 1011.8 hPa (+1.3)
PSBC1 - 9415115 - Pittsburg (Suisun Bay), CA 42 mi49 min WNW 20 G 23 61°F 1010 hPa (+1.8)
46042 - MONTEREY - 27NM West of Monterey Bay, CA 49 mi39 min S 5.8 G 7.8 57°F 57°F1013.3 hPa

Wind History for Redwood City, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Palo Alto Airport, CA3 mi4 hrsN 1210.00 miClear63°F57°F83%1010.8 hPa
San Carlos Airport, CA6 mi54 minW 510.00 miA Few Clouds59°F54°F82%1012.5 hPa
Mountain View, Moffett Field, CA7 mi54 minN 610.00 miOvercast61°F57°F88%1012.2 hPa
Hayward, Hayward Air Terminal, CA14 mi55 minNNW 710.00 miOvercast59°F54°F83%1013 hPa
San Francisco, San Francisco International Airport, CA14 mi53 minW 610.00 miA Few Clouds62°F52°F70%1012 hPa
San Jose, San Jose International Airport, CA15 mi56 minNNW 410.00 miA Few Clouds60°F54°F80%1012.1 hPa
Oakland, Metro Oakland International Airport, CA16 mi56 minNW 510.00 miMostly Cloudy58°F55°F90%1012.3 hPa
Half Moon Bay Airport, CA17 mi54 minSSE 85.00 miFog/Mist55°F54°F94%1013.2 hPa
San Jose / Reid / Hillv, CA21 mi3 hrsWNW 510.00 miClear64°F54°F68%1011.8 hPa

Link to 5 minute data for KPAO

Wind History from PAO (wind in knots)
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Last 24hr------------------CalmCalmCalm------N10NW10NW14N14N14--N14--N12
1 day ago------------------Calm66N7N8N8N8N13N15N14N15N12--N11N11
2 days ago------------------3Calm5456N9N11N13N14NW11NW14NW12NW11NW9

Tide / Current Tables for Redwood City, Wharf 5, California (3)
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Redwood City
Click for Map
Mon -- 03:12 AM PDT     Moonset
Mon -- 04:56 AM PDT     -0.06 feet Low Tide
Mon -- 05:48 AM PDT     Sunrise
Mon -- 11:07 AM PDT     6.31 feet High Tide
Mon -- 04:21 PM PDT     2.04 feet Low Tide
Mon -- 05:22 PM PDT     Moonrise
Mon -- 08:33 PM PDT     Sunset
Mon -- 10:23 PM PDT     8.79 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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6.54.82.91.30.2-0.10.51.73.24.75.86.365.13.92.72.12.23.24.76.47.98.78.7

Tide / Current Tables for Dumbarton Bridge, San Francisco Bay, California Current
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Dumbarton Bridge
Click for Map
Mon -- 01:55 AM PDT     -1.59 knots Max Ebb
Mon -- 03:12 AM PDT     Moonset
Mon -- 05:25 AM PDT     0.00 knots Slack
Mon -- 05:47 AM PDT     Sunrise
Mon -- 08:37 AM PDT     1.70 knots Max Flood
Mon -- 12:25 PM PDT     -0.00 knots Slack
Mon -- 02:26 PM PDT     -0.75 knots Max Ebb
Mon -- 05:01 PM PDT     0.00 knots Slack
Mon -- 05:22 PM PDT     Moonrise
Mon -- 08:21 PM PDT     1.58 knots Max Flood
Mon -- 08:33 PM PDT     Sunset
Mon -- 11:40 PM PDT     -0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-0.8-1.4-1.6-1.4-1-0.30.51.21.61.71.410.3-0.4-0.7-0.7-0.4-00.61.21.51.51.10.5

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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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