Saturday, July11, 2020
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Marine Weather and Tides
Saratoga, CA

Version 3.4
NOTICE
12/16/2019 NOAA is having trouble with requests that include wind gusts. I am posting graphs without wind gusts until it gets fixed.
10/9/2019 Updated the Marine Zones.
9/4/2019 Fixed the weather maps due to NOAA moving them.
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.

Sunrise 5:56AMSunset 8:31PM Saturday July 11, 2020 1:23 PM PDT (20:23 UTC) Moonrise 11:41PMMoonset 11:15AM Illumination 62% Phase: Waning Gibbous; Moon at 21 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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PZZ560 Coastal Waters From Pigeon Point To Point Pinos California Out To 10 Nm- 903 Am Pdt Sat Jul 11 2020
.small craft advisory in effect until 3 pm pdt this afternoon...
Today..NW winds 15 to 25 kt with gusts up to 30 kt. Wind waves around 2 ft, increasing to 3 to 4 ft this afternoon. NW swell 3 to 5 ft at 8 seconds and S around 2 ft at 12 seconds.
Tonight..NW winds 15 to 25 kt with gusts up to 30 kt. Wind waves 3 to 4 ft. NW swell 4 to 6 ft at 9 seconds and S around 2 ft at 12 seconds.
Sun..NW winds 10 to 20 kt with gusts up to 30 kt. Wind waves 3 to 4 ft. NW swell 4 to 6 ft at 9 seconds and S up to 2 ft at 16 seconds.
Sun night..NW winds 10 to 20 kt with gusts up to 25 kt. Wind waves 3 to 4 ft. NW swell 5 to 7 ft at 8 seconds and S around 2 ft at 14 seconds.
Mon..NW winds 10 to 20 kt with gusts up to 25 kt. Wind waves 1 to 2 ft. NW swell 4 to 6 ft at 8 seconds and S around 2 ft at 13 seconds.
Mon night..W winds 5 to 15 kt. Wind waves 1 to 2 ft. NW swell 4 to 6 ft at 9 seconds and S around 2 ft at 11 seconds.
Tue..S winds up to 10 kt. Wind waves 1 ft. NW swell 4 to 6 ft and S around 2 ft.
Wed..S winds up to 10 kt. Wind waves 1 ft. NW swell 3 to 5 ft.
PZZ500 903 Am Pdt Sat Jul 11 2020
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... Moderate locally gusty northwest winds through the weekend. These winds will generate steep fresh wind driven northwest swell which will result in hazardous conditions for small craft vessels in the coastal waters. Otherwise, a light longer period south swell will be mixed in with the steep fresh northwest swell.


7 Day Forecast for Marine Location Near Saratoga, CA
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location: 37.29, -122.05     debug


Area Discussion for - San Francisco/Monterey Bay Area, CA
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FXUS66 KMTR 111743 AFDMTR

Area Forecast Discussion National Weather Service San Francisco Bay Area 1043 AM PDT Sat Jul 11 2020

SYNOPSIS. High pressure will dominate the weather pattern over the region this weekend resulting in very warm temperatures across the interior. Continued onshore flow will keep conditions near the coast cooler, yet still mild. A subtle cooling trend is on track to occur early next week.

DISCUSSION. as of 09:16 AM PDT Saturday . Low clouds and fog have begun to dissipate this morning along the coast, with patchy areas primarily over Santa Cruz county, Marin County, and the San Francisco Peninsula. Pressure gradient between SFO and ACV remained steady at around 5mb, indicative of our compressed marine layer. Fort Ord Profiler captured the shallow layer overnight, with some recovery this morning before going back to its gradual dissipation. As of this morning the most notable patch of the marine layer is a small, but growing marine layer deck due west of the San Francisco Peninsula. Expect that area to be the deepest spot for the marine layer along the CWA coastline today. In terms of temperatures and humidity overnight, RH values over higher terrain locations primarily along the East and North Bay were fairly low, with similar conditions expected Saturday night owing to the upper-level ridge setup.

The 590dm 500mb ridge over the Southwestern US has continued its expansion and will be the primary driver for our weather this weekend. Mild conditions are expected along the coast owing to greater diurnal heating as the marine layer influence remains low, while interior locations from Hollister up to Napa Valley will reach well over 90 degrees today. Some isolated areas can also expect to hit and surpass the 100 degree mark this afternoon.

Weak onshore flow is expected tonight, which will likely result in poor humidity recoveries in areas and overnight lows ranging between 60s and low 70s along our interior, especially in our higher elevations.

Sunday will be our warmest day, with mild coastal temperatures along with hot interior temperatures expected. Temps along the coast will land within the 65-75 F range while some of our interior locations should expect to reach the mid-90s. Moreover,some areas across the interior could easily experience highs in the 100-105 F range. Thankfully, models are suggesting there will be weak offshore flow owing to the stable conditions from the upper-level ridge. Nevertheless, the poor humidity recoveries along with the warmth this weekend will still result in elevated fire weather and heat concerns, especially for Sunday.

Looking ahead into next week, heights will fall across the CWA as the upper-level ridge weakens and allows for the intrusion of a disturbance off the Pacific into BC. Temperatures will return closer to seasonal averages by the first half of next week as a result. This disturbance will also allow for the marine layer to recover, bringing coastal locations back to their seasonal averages as well. Expect the main setup for next week to be the gradual shift in our upper-level setup as the ridge weakens and makes its way out of the southwest as this trough takes over.

AVIATION. as of 10:45 AM PDT Saturday . Widespread VFR with only a few hints of the marine layer left along the Marin headlands and offshore of the San Francisco Peninsula. Generally light onshore winds are prevailing this morning but will give way to moderate onshore winds, particularly through coastal gaps such as near KSFO, through the remainder of the day. For tonight, a compressed marine layer may bring a few clouds along the coast and bayshore, but otherwise VFR is expected. Tomorrow will see similar moderate onshore winds and VFR conditions as well.

Vicinity of KSFO . VFR, west to northwest wind increasing to 20 to 25 knots by early afternoon. Gusts should be infrequent but may approach 30kt if they develop. Wind easing tonight and Sunday morning but pick up again Sunday afternoon.

SFO Bridge Approach . Similar to KSFO.

Monterey Bay Terminals . VFR today. Calm winds shifting to west to northwest 10 to 15 knots by early afternoon. Generally VFR tonight though a few patches of low BKN/OVC clouds may develop late into the night for a few hours near KMRY/KWVI.

MARINE. as of 10:38 AM PDT Saturday . Moderate locally gusty northwest winds through the weekend. These winds will generate steep fresh wind driven northwest swell which will result in hazardous conditions for small craft vessels in the coastal waters. Otherwise, a light longer period south swell will be mixed in with the steep fresh northwest swell.

MTR WATCHES/WARNINGS/ADVISORIES. Tday. SCA . Pt Reyes to Pigeon Pt 0-10 nm until 3 PM SCA . Pigeon Pt to Pt Pinos 0-10 nm until 3 PM SCA . Pt Arena to Pigeon Pt 10-60 nm SCA . Pt Arena to Pt Reyes 0-10 nm SCA . Pt Pinos to Pt Piedras Blancas 0-10 nm SCA . Pigeon Pt to Pt Piedras Blancas 10-60 nm



PUBLIC FORECAST: Diaz/MM AVIATION: DRP MARINE: DRP

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Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
RTYC1 - 9414523 - Redwood City, CA 17 mi53 min NNW 7 G 8.9 73°F 74°F1017.1 hPa
MLSC1 - Moss Landing, South Harbor, CA 36 mi78 min WNW 8 G 21 58°F 1017.7 hPa54°F
AAMC1 - 9414750 - Alameda, CA 36 mi53 min W 6 G 7 69°F 71°F1016.9 hPa
46092 - MBM1 37 mi64 min WNW 14 55°F 55°F1017.5 hPa (+0.7)
ELXC1 - Elkhorn Slough Reserve, CA 37 mi98 min W 5.1 68°F 58°F
LNDC1 37 mi53 min WNW 4.1 G 7 71°F 1016.8 hPa
OMHC1 - 9414769 - Oakland Middle Harbor Met, CA 38 mi53 min W 5.1 G 7
46042 - MONTEREY - 27NM West of Monterey Bay, CA 39 mi43 min NW 18 G 21 55°F 55°F1018 hPa54°F
OBXC1 39 mi53 min 65°F 58°F
OKXC1 - 9414776 - Oakland (Berth 34), CA 39 mi53 min NW 9.9 G 11 62°F 1016.9 hPa
PXSC1 40 mi53 min 70°F 54°F
PXOC1 - 9414311 - San Francisco (Pier 1), CA 40 mi53 min SSW 4.1 G 7 71°F 1015.9 hPa
FTPC1 - 9414290 - San Francisco, CA 42 mi53 min W 8.9 G 14 58°F 64°F1017.5 hPa
46012 - HALF MOON BAY - 24NM South Southwest of San Francisco, CA 44 mi43 min NNW 18 G 21 55°F 1018.8 hPa53°F
46114 - West Monterey Bay, CA 44 mi57 min 55°F6 ft
PPXC1 - 9414847 - Richmond (Point Potrero), CA 46 mi53 min SSW 9.9 G 14 62°F 1017.2 hPa
46237 - San Francisco Bar, CA (142) 46 mi83 min 60°F4 ft
TIBC1 - Tiburon Pier, San Francisco Bay, CA 47 mi37 min SSE 11 69°F 1016 hPa
MEYC1 48 mi47 min WNW 13 G 17 60°F 64°F1017.8 hPa
RCMC1 - 9414863 - Richmond, CA 48 mi53 min S 5.1 G 7 66°F 66°F1016.5 hPa

Wind History for Redwood City, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
San Jose, San Jose International Airport, CA8 mi30 minNW 710.00 miA Few Clouds85°F48°F28%1015.8 hPa
San Jose / Reid / Hillv, CA13 mi36 minW 610.00 miClear88°F53°F31%1015.9 hPa
Palo Alto Airport, CA14 mi96 minN 610.00 miClear75°F57°F54%1016.6 hPa
San Carlos Airport, CA20 mi36 minWNW 610.00 miClear79°F55°F45%1016.6 hPa

Link to 5 minute data for KSJC

Wind History from SJC (wind in knots)
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Last 24hrN6NW8NW10NW12NW11NW9NW8NW8NW5NW4NW3N3NW5NW4NW3CalmCalmCalmNW3CalmCalm3NW6NW7
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NW9NW12NW12N11N11NW11NW7N7NW3NW3CalmCalmCalmNW3NW3NW4N4NW3Calm5NW75NW8
2 days agoNW11N15NW14N11NW12N11NW7NW9NW8N4N4CalmN4N4N4CalmSE6S8SE533CalmN6NW8

Tide / Current Tables for Gold Street Bridge, Alviso Slough, San Francisco Bay, California
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Gold Street Bridge
Click for Map
Sat -- 12:15 AM PDT     Moonrise
Sat -- 01:16 AM PDT     2.78 feet Low Tide
Sat -- 05:17 AM PDT     7.37 feet High Tide
Sat -- 05:56 AM PDT     Sunrise
Sat -- 12:15 PM PDT     Moonset
Sat -- 01:03 PM PDT     0.80 feet Low Tide
Sat -- 06:56 PM PDT     8.50 feet High Tide
Sat -- 08:30 PM PDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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3.22.83.14.56.27.37.36.75.74.43.11.91.10.81.32.74.76.688.58.27.36.24.9

Tide / Current Tables for Dumbarton Point 2.3 mi NE, South San Francisco Bay, California Current
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Dumbarton Point 2.3 mi NE
Click for Map
Sat -- 12:15 AM PDT     Moonrise
Sat -- 12:45 AM PDT     0.00 knots Slack
Sat -- 02:58 AM PDT     0.68 knots Max Flood
Sat -- 05:47 AM PDT     -0.00 knots Slack
Sat -- 05:56 AM PDT     Sunrise
Sat -- 10:15 AM PDT     -0.91 knots Max Ebb
Sat -- 12:15 PM PDT     Moonset
Sat -- 12:54 PM PDT     0.00 knots Slack
Sat -- 03:39 PM PDT     1.03 knots Max Flood
Sat -- 07:02 PM PDT     -0.00 knots Slack
Sat -- 08:30 PM PDT     Sunset
Sat -- 11:00 PM PDT     -0.71 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-0.30.10.50.70.60.3-0.1-0.3-0.6-0.8-0.9-0.8-0.40.10.6110.90.50-0.3-0.5-0.7-0.7

Weather Map
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wmap_P
GEOS Local Image of CentralWestCoast    EDIT
NOTE: East coast views moved to GEOS-16. They are experimental and not well supported by NOAA so they may not be correct so be warned. This change required redoing a large amount of the GOES code. If the image you are expecting is not showing, please let me know. You may need to use the EDIT function to update your location.
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Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for San Francisco/Monterey Bay Area, CA (16,3,4,5)
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Ground Weather Radar Station San Francisco Bay Area, CA
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