Saturday, December7, 2019
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Marine Weather and Tides
Pacheco, CA

Version 3.4
NOTICE
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.
6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at L-36.com. Allen

Sunrise 7:09AMSunset 4:49PM Saturday December 7, 2019 3:52 AM PST (11:52 UTC) Moonrise 2:28PMMoonset 2:32AM Illumination 80% Phase: Waxing Gibbous; Moon at 10 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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PZZ530 San Pablo Bay, Suisun Bay, The West Delta And The San Francisco Bay North Of The Bay Bridge- 238 Am Pst Sat Dec 7 2019
.small craft advisory in effect through this evening...
Today..S winds 15 to 25 kt with gusts up to 35 kt. Showers and a slight chance of Thunderstorms.
Tonight..SW winds 10 to 20 kt with gusts up to 25 kt. Showers and a slight chance of Thunderstorms.
Sun..SW winds up to 10 kt. Rain likely.
Sun night..N winds around 5 kt.
Mon..W winds up to 10 kt. Patchy fog.
Mon night..W winds up to 10 kt.
Tue..NE winds up to 10 kt.
Wed..NE winds up to 10 kt. Winds and wind waves higher in and near Thunderstorms.
PZZ500 238 Am Pst Sat Dec 7 2019
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... A secondary frontal boundary will move through the coastal waters today. Scattered Thunderstorms will move into the coastal waters which could produce lightning, gusty winds, and possible waterspouts. Breezy to gusty south to southwest winds will continue through the day today before diminishing this evening. A moderate west swell will continue through Sunday. Steep wind waves will continue through the day today creating hazardous seas.


7 Day Forecast for Marine Location Near Pacheco, CA
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location: 37.98, -122.07     debug


Area Discussion for - San Francisco/Monterey Bay Area, CA
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FXUS66 KMTR 071120 AFDMTR

Area Forecast Discussion National Weather Service San Francisco Bay Area 320 AM PST Sat Dec 7 2019

SYNOPSIS. Showery conditions through the morning, then another frontal band will move across the district bringing heavier showers and a chance of thunderstorms. Lingering showers on Sunday but trending drier by afternoon. Dry weather returns early next week.

DISCUSSION. as of 3:20 AM PST Saturday . Showers continue to move southward through the district although the front has weakened considerably. The complex upper low is still offshore, and another shortwave can be seen on IR satellite imagery approaching the coast. A lot of lightning is being detected with this impulse, and SPC has most of northern California under the general thunderstorm risk with a bullseye of marginal severe risk including the North Bay in the Day 1 outlook. Thus, it looks more likely for thunderstorm development this afternoon, especially across the North Bay. Therefore, another flash flood watch is warranted for the Kincade Fire burn area to account for possible brief downpours with thunderstorms in this passing shortwave. The current watch expires at 4 am.

This impulse is forecast to move through by this evening, although showers will linger into Sunday.

Winds remain gusty over the higher terrain, but are decreasing. The wind advisory will be canceled before 4 am. Winds are forecast to be gusty again as this next impulse moves through later today, but are expected to be below wind advisory criteria.

High pressure to build back in by Monday bringing drier conditions to the area. The midweek weather system still looks very weak with rain chances very slim.

AVIATION. as of 10:45 PM PST Friday . Frontal system weakening as it moves through the Bay Area but is bringing light rain and MVFR cigs. A break is expected later tonight into Saturday morning behind the front. Lightning strikes associated with a second front have been detected about 150 miles off the coast. This system will arrive in the North Bay after 15Z and the Bay Area after 18Z bringing light to moderate rain that will last through Saturday night. Latest models show a 35 percent chance of tstorms in SFO Saturday afternoon so have added VCTS to Bay Area tafs.

Winds gusting to 25 kt may decrease some overnight but should pick up again with the next system. Gusts to 30-35 kt possible in heavier rains. Things should wind down Saturday night with just some scattered showers.

Vicinity of KSFO . MVFR cigs with bases 2500-3000 feet. Light rain ending after 10Z but resuming after 18Z. Possibility of a thunderstorm in the afternoon with occasional moderate rain. Winds gusting to 25-28 kt through Saturday . locally higher in heavier rains and thunderstorms. Stronger winds above the surface could cause LLWS up to 2000 ft.

SFO Bridge Approach . Similar to KSFO.

Monterey Bay Terminals . VFR cigs with bases around 4000 ft. Light rain through 15Z with a seconds front bringing another period of light rain by Saturday evening. Gusty south to southeast winds to 20-25 kt at MRY and 30-35 kt in the Salinas Valley. Stronger winds above the surface could cause LLWS at MRY up to 2000 ft.

MARINE. as of 2:38 AM PST Saturday . A secondary frontal boundary will move through the coastal waters today. Scattered thunderstorms will move into the coastal waters which could produce lightning, gusty winds, and possible waterspouts. Breezy to gusty south to southwest winds will continue through the day today before diminishing this evening. A moderate west swell will continue through Sunday. Steep wind waves will continue through the day today creating hazardous seas.


MTR WATCHES/WARNINGS/ADVISORIES. Tday. Flash Flood Watch . CAZ506-507 GLW . SF Bay until 3 AM GLW . Pt Arena to Pt Reyes 0-10 nm until 3 AM GLW . Pt Reyes to Pigeon Pt 0-10 nm until 3 AM GLW . Pigeon Pt to Pt Pinos 0-10 nm until 3 AM GLW . Pt Pinos to Pt Piedras Blancas 0-10 nm until 3 AM GLW . Pt Arena to Pigeon Pt 10-60 nm until 3 AM GLW . Pigeon Pt to Pt Piedras Blancas 10-60 nm until 3 AM SCA . Mry Bay



PUBLIC FORECAST: Sims AVIATION: W Pi MARINE: ST

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Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
UPBC1 5 mi52 min S 6 G 11
MZXC1 - 9415102 - Martinez-Amorco CA 5 mi52 min S 8 G 9.9 59°F 54°F1014.1 hPa (-0.4)
PCOC1 - 9415144 - Port Chicago, CA 6 mi52 min SE 1.9 G 4.1 58°F 53°F1013.9 hPa (-0.5)
PSBC1 - 9415115 - Pittsburg (Suisun Bay), CA 11 mi52 min SSE 4.1 G 6 56°F 1014.2 hPa (+0.0)
DPXC1 - 9415141 - Davis Point, San Pablo Bay, CA 12 mi52 min SSW 11 G 17 59°F 1013.6 hPa (+0.0)
SFXC1 - San Francisco Bay Reserve, CA 15 mi67 min SSE 5.1 55°F 1014 hPa
PPXC1 - 9414847 - Richmond (Point Potrero), CA 16 mi58 min S 14 G 17 58°F 1014.2 hPa
LNDC1 17 mi52 min SSE 6 G 8 58°F 1014.3 hPa (+0.0)
OKXC1 - 9414776 - Oakland (Berth 34), CA 18 mi52 min SSW 13 G 19 58°F 1014.2 hPa (+0.0)
RCMC1 - 9414863 - Richmond, CA 18 mi52 min 54°F
AAMC1 - 9414750 - Alameda, CA 19 mi52 min 54°F
OBXC1 19 mi52 min 59°F 58°F
PXOC1 - 9414311 - San Francisco (Pier 1), CA 21 mi52 min SE 8.9 G 13 59°F 1013.2 hPa (+0.0)
TIBC1 - Tiburon Pier, San Francisco Bay, CA 21 mi41 min SE 11 58°F 1014 hPa
FTPC1 - 9414290 - San Francisco, CA 24 mi58 min SSW 8 G 15 59°F 54°F1014.6 hPa
46237 - San Francisco Bar, CA (142) 33 mi52 min 54°F11 ft
46026 - SAN FRANCISCO - 18NM West of San Francisco, CA 44 mi22 min SSE 21 G 27 57°F 55°F1013.9 hPa
PRYC1 - 9415020 - Point Reyes, CA 48 mi52 min 54°F1012.8 hPa (+0.4)

Wind History for Union Pacific Rail Road Bridge (UPRR), CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Concord, Buchanan Field, CA1 mi59 minN 010.00 miOvercast58°F53°F84%1012.7 hPa
Napa, Napa County Airport, CA19 mi58 minN 010.00 miOvercast56°F55°F97%1013.2 hPa
Oakland, Metro Oakland International Airport, CA21 mi59 minSE 1010.00 miOvercast59°F54°F83%1014.4 hPa
Fairfield / Travis Air Force Base, CA22 mi1.9 hrsESE 510.00 miOvercast55°F53°F95%1014.9 hPa
Hayward, Hayward Air Terminal, CA22 mi58 minSE 87.00 miLight Rain59°F54°F83%1015.3 hPa
Livermore, Livermore Municipal Airport, CA23 mi59 minSW 410.00 miLight Rain58°F52°F81%1013.9 hPa

Link to 5 minute data for KCCR

Wind History from CCR (wind in knots)
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Last 24hrCalmCalmCalmNW4E4CalmW5NW7N5NW6W4CalmCalmS9S12
G19
S9SE8S11S5S7SE8SE5SE4Calm
1 day agoCalmCalmCalmE3S3SE4--E45NE5NE6NE4CalmN3CalmCalmCalmNW3CalmCalmCalmCalmCalmCalm
2 days agoCalmN4NE6N6NE4NE3NE4NE8N4N6N3NE3NE4N3N5NE3NE5NE4NE4NE3CalmN3CalmCalm

Tide / Current Tables for Benicia, Carquinez Strait, California
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Benicia
Click for Map
Sat -- 02:32 AM PST     Moonset
Sat -- 03:36 AM PST     0.88 feet Low Tide
Sat -- 07:11 AM PST     Sunrise
Sat -- 10:21 AM PST     4.83 feet High Tide
Sat -- 02:28 PM PST     Moonrise
Sat -- 04:48 PM PST     Sunset
Sat -- 05:01 PM PST     0.43 feet Low Tide
Sat -- 11:02 PM PST     3.54 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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2.61.91.30.90.91.322.93.84.44.84.74.13.22.21.40.70.40.71.322.83.33.5

Tide / Current Tables for Roe Island S, Suisun Bay, California Current
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Roe Island S
Click for Map
Sat -- 02:32 AM PST     Moonset
Sat -- 02:58 AM PST     -1.51 knots Max Ebb
Sat -- 06:15 AM PST     0.00 knots Slack
Sat -- 07:10 AM PST     Sunrise
Sat -- 09:14 AM PST     0.92 knots Max Flood
Sat -- 12:26 PM PST     -0.00 knots Slack
Sat -- 02:28 PM PST     Moonrise
Sat -- 04:04 PM PST     -2.05 knots Max Ebb
Sat -- 04:48 PM PST     Sunset
Sat -- 07:49 PM PST     0.00 knots Slack
Sat -- 10:27 PM PST     0.62 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-0.1-0.9-1.4-1.5-1.4-0.9-0.20.40.80.90.90.60.2-0.6-1.4-1.8-2-1.9-1.4-0.70.10.40.60.6

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 (6,6,7,8)
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Ground Weather Radar Station Sacramento, CA
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