Saturday, December7, 2019
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Marine Weather and Tides
Fairview, 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 7:08AMSunset 4:50PM Saturday December 7, 2019 2:44 PM PST (22:44 UTC) Moonrise 2:28PMMoonset 2:31AM Illumination 84% 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- 928 Am Pst Sat Dec 7 2019
.small craft advisory in effect until 9 pm pst this evening...
Today..S winds 10 to 20 kt. Gusts up to 35 kt this afternoon. Showers. A slight chance of Thunderstorms this afternoon.
Tonight..SW winds 5 to 10 kt with gusts up to 25 kt. Showers likely and a slight chance of Thunderstorms.
Sun..W winds 5 to 10 kt. A chance of rain.
Sun night..NW winds up to 10 kt.
Mon..NW winds up to 10 kt. Patchy fog.
Mon night..NW winds up to 10 kt.
Tue..NE winds around 5 kt.
Wed..NE winds up to 10 kt. Winds and wind waves higher in and near Thunderstorms.
PZZ500 928 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 Fairview, CA
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location: 37.67, -122     debug


Area Discussion for - San Francisco/Monterey Bay Area, CA
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FXUS66 KMTR 072109 AFDMTR

Area Forecast Discussion National Weather Service San Francisco Bay Area 109 PM 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 1:09 PM PST . The next round of rain has arrived to the North Bay. Latest KMUX radar imagery shows light to moderate rain falling across much of Sonoma and Napa Counties as of 1 pm PST. The rain is also starting to impact San Francisco this early afternoon. Expect the rain to continue spreading southeastward through the rest of the day. While we have yet to observe any lightning strikes in the San Francisco Bay Area, the chance of thunderstorms will continue through the evening hours for much of the region. The Day 1 Storm Prediction Center has the vast majority of the region in at least the general thunder category. Additionally, most of the North Bay is under a marginal risk for severe weather. The 18Z HRRR does indicate some locally impressive 0-1 km bulk shear and 0-1 km storm relative helicity values, but think the best potential for any sort of rotating storms will be to the east of the area in the Central Valley where the skies have thus far remained generally clear today. In addition to the thunderstorm risk, a Flash Flood Watch is in effect for the Kincade Fire burn area through 10 pm PST this evening.

Southerly winds will remain locally strong through the rest of the afternoon. Winds have already gusted above 40 mph at SFO, 31 mph at OAK, and at least 25 mph at MRY today. These winds will diminish later this afternoon or evening near sea level with breezy conditions likely persisting in the higher elevations into the overnight hours.

Scattered rain showers are expected to continue through about mid-day on Sunday as the upper level trough axis passes through the Bay Area. Behind this trough an upper level ridge will quickly build over the West Coast, bringing dry conditions to the Bay Area and Central California Coast for Monday and Tuesday. Models advertise a weak system that will impact parts of northern California around Wednesday. At this point it would appear the best chances for rain would be north of the Golden Gate with perhaps a few tenths of an inch. Another system will then arrive late Thursday or Friday to northern California, but again the best rain chances will be to the north of the Golden Gate. Overall -- all locations are expected to be significantly drier this upcoming week compared to the last few weeks. In fact, the latest 6-10 day precipitation outlook (valid December 13-17) from the Climate Prediction Center places much of central and southern California with favored odds of experiencing below normal precipitation.

AVIATION. as of 9:55 AM PST Saturday . Scattered showers will continue to increase in coverage and intensity through the morning hours. Skies are mainly MVFR this morning and this is expected to continue through the day. The upper low offshore will push more energy through the area this afternoon. Moderate to potentially heavy rain showers and a chance for thunderstorms will arrive this afternoon as another front pushes through. Winds this morning will gust to 25-30 kt with gusts increasing briefly this afternoon to 30-35 kt along the front. In and around thunderstorms winds may become directionally erratic. Occasional lulls have been observed at the terminals overnight and this will continue through the morning. LLWS will be a concern at the terminals through the afternoon. Winds will subside this evening after the front passes through. Scattered showers will persist this evening and overnight but rainfall should be light. MVFR cigs will persist through the end of the TAF period.

Vicinity of KSFO . MVFR cigs with bases generally 2000-2500 feet. Light scattered showers will persist early this morning. Scattered thunderstorms are possible this afternoon with moderate to briefly heavy rain. Southeast winds have gusted to near 30 kt this morning mixed with periods of lighter winds. Lulls in stronger winds will continue through the morning hours. Gusty winds 30-35 kt will be possible this afternoon with locally higher gusts in thunderstorms. LLWS will be a concern today especially during periods of lighter winds at the terminal.

SFO Bridge Approach . Similar to KSFO.

Monterey Bay Terminals . Borderline MVFR/VFR this morning with bases 3000 feet. Light rain showers continuing through the day. 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. Isolated thunderstorms are now possible into the Monterey Bay terminals this afternoon so VCTS continues in the TAFs.

MARINE. as of 12:59 PM 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. Tngt. Flash Flood Watch . CAZ506-507 SCA . SF Bay until 9 PM SCA . Mry Bay until 9 PM SCA . Pt Arena to Pt Reyes 0-10 nm until 9 PM SCA . Pt Reyes to Pigeon Pt 0-10 nm until 9 PM SCA . Pigeon Pt to Pt Pinos 0-10 nm until 9 PM SCA . Pt Pinos to Pt Piedras Blancas 0-10 nm until 9 PM SCA . Pt Arena to Pigeon Pt 10-60 nm until 9 PM SCA . Pigeon Pt to Pt Piedras Blancas 10-60 nm until 9 PM



PUBLIC FORECAST: Rowe AVIATION: BFG MARINE: BFG

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Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
RTYC1 - 9414523 - Redwood City, CA 16 mi62 min SSE 12 G 17 62°F 56°F1013.4 hPa
AAMC1 - 9414750 - Alameda, CA 17 mi62 min S 13 G 16 54°F1012.7 hPa
LNDC1 17 mi62 min SSW 14 G 19 60°F 1012.2 hPa
OBXC1 20 mi62 min 59°F 59°F
OKXC1 - 9414776 - Oakland (Berth 34), CA 20 mi62 min SSW 15 G 19 59°F 1012 hPa
PXOC1 - 9414311 - San Francisco (Pier 1), CA 23 mi56 min SE 11 G 16 61°F 1010.7 hPa
PPXC1 - 9414847 - Richmond (Point Potrero), CA 25 mi56 min S 21 G 26 61°F 1012.1 hPa
UPBC1 26 mi56 min SW 14 G 21
PSBC1 - 9415115 - Pittsburg (Suisun Bay), CA 26 mi62 min SW 11 G 20 65°F 1011.6 hPa
FTPC1 - 9414290 - San Francisco, CA 26 mi62 min S 8.9 G 22 54°F1012 hPa
MZXC1 - 9415102 - Martinez-Amorco CA 26 mi62 min S 15 G 20 61°F 54°F1011.8 hPa
PCOC1 - 9415144 - Port Chicago, CA 27 mi62 min SSW 9.9 G 15 60°F 53°F1011.7 hPa
RCMC1 - 9414863 - Richmond, CA 28 mi62 min S 14 G 22 54°F1011.4 hPa
TIBC1 - Tiburon Pier, San Francisco Bay, CA 28 mi39 min SE 14 60°F 1011 hPa
DPXC1 - 9415141 - Davis Point, San Pablo Bay, CA 30 mi56 min SSW 19 G 26 60°F 1010.8 hPa
46237 - San Francisco Bar, CA (142) 35 mi44 min 54°F10 ft
SFXC1 - San Francisco Bay Reserve, CA 37 mi59 min SW 13 60°F 1012 hPa55°F
46026 - SAN FRANCISCO - 18NM West of San Francisco, CA 45 mi34 min S 23 G 29 58°F 56°F1012 hPa

Wind History for Redwood City, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Hayward, Hayward Air Terminal, CA6 mi50 minS 122.50 miLight Rain62°F54°F75%1013.5 hPa
Livermore, Livermore Municipal Airport, CA10 mi51 minSSW 13 G 219.00 miMostly Cloudy62°F50°F65%1011.6 hPa
Oakland, Metro Oakland International Airport, CA12 mi51 minSSW 21 G 279.00 miLight Rain and Breezy62°F55°F78%1012.5 hPa
Palo Alto Airport, CA15 mi57 minSSE 11 G 218.00 miShowers in Vicinity63°F55°F77%1012.9 hPa
San Carlos Airport, CA16 mi2 hrsS 14 G 2510.00 miMostly Cloudy64°F55°F73%1013.2 hPa
San Francisco, San Francisco International Airport, CA19 mi1.8 hrsS 26 G 357.00 miMostly Cloudy and Windy61°F55°F84%1012.1 hPa
San Jose, San Jose International Airport, CA21 mi51 minS 17 G 239.00 miLight Rain63°F53°F70%1013.1 hPa
Concord, Buchanan Field, CA22 mi51 minS 138.00 miLight Rain62°F55°F78%1010.4 hPa

Link to 5 minute data for KHWD

Wind History from HWD (wind in knots)
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1 day agoCalmCalmW3N3CalmCalmCalmE3SE4E3E5E5NE5E4E9E7SE8E7E7SE10SE12
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2 days agoNE9NE3NE7NE5NE3E4CalmNE3NE5CalmNE3CalmNE5E3NE7NE5NE6NE6NE5E4CalmE7NW3W4

Tide / Current Tables for Alameda Creek, San Francisco Bay, California
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Alameda Creek
Click for Map
Sat -- 02:32 AM PST     Moonset
Sat -- 03:45 AM PST     0.43 feet Low Tide
Sat -- 07:10 AM PST     Sunrise
Sat -- 09:01 AM PST     5.88 feet High Tide
Sat -- 02:28 PM PST     Moonrise
Sat -- 04:49 PM PST     Sunset
Sat -- 05:05 PM PST     0.28 feet Low Tide
Sat -- 09:53 PM PST     4.32 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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2.61.810.50.51.12.54.15.45.95.75.14.23.121.10.50.30.71.7344.34.1

Tide / Current Tables for Oakland Airport SW, South San Francisco Bay, California Current
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Oakland Airport SW
Click for Map
Sat -- 02:24 AM PST     0.00 knots Slack
Sat -- 02:32 AM PST     Moonset
Sat -- 05:40 AM PST     0.54 knots Max Flood
Sat -- 07:10 AM PST     Sunrise
Sat -- 08:44 AM PST     -0.00 knots Slack
Sat -- 11:31 AM PST     -0.67 knots Max Ebb
Sat -- 02:29 PM PST     Moonrise
Sat -- 03:22 PM PST     0.00 knots Slack
Sat -- 04:49 PM PST     Sunset
Sat -- 06:30 PM PST     0.51 knots Max Flood
Sat -- 09:28 PM PST     -0.01 knots Slack
Sat -- 11:45 PM PST     -0.47 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-0.4-0.3-0.10.10.40.50.50.40.2-0.1-0.5-0.7-0.7-0.6-0.4-0.10.20.40.50.50.40.1-0.2-0.4

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 (17,4,5,8)
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Ground Weather Radar Station San Francisco Bay Area, CA
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