Friday, September18, 2020
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Marine Weather and Tides
Burlingame, CA

Version 3.4
NOTICE
8/26/2020 The 7 day forecast is taking about 5 seconds to load but it will eventually load. NOAA is still working on it.
8/18/2020 NOAA continues to have trouble. Wind guest will occasionally be left off graphs. I am working with NOAA to resolve the issue.
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 6:53AMSunset 7:13PM Friday September 18, 2020 5:21 PM PDT (00:21 UTC) Moonrise 7:15AMMoonset 7:25PM Illumination 3% Phase: Waxing Crescent; Moon at 2 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- 230 Pm Pdt Fri Sep 18 2020
Rest of today..W winds 10 to 15 kt.
Tonight..W winds 5 to 15 kt.
Sat..W winds 5 to 15 kt with gusts up to 25 kt.
Sat night..W winds 10 to 20 kt with gusts up to 25 kt.
Sun..NW winds 5 to 15 kt.
Sun night..W winds around 5 kt.
Mon..W winds 10 to 20 kt with gusts up to 25 kt.
Tue..W winds 10 to 20 kt with gusts up to 25 kt.
PZZ500 230 Pm Pdt Fri Sep 18 2020
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... Winds continue to be out of the northwest and light, but locally stronger gusts are forecast south of pigeon point, into the northern Monterey bay, and south of point sur along the big sur coast. Winds will forecast to increase late Saturday afternoon and into Saturday evening. Seas remain mixed with a shorter period northwest swell and a moderate period south to southwest swell.


7 Day Forecast for Marine Location Near Burlingame, CA
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location: 37.61, -122.32     debug


Area Discussion for - San Francisco/Monterey Bay Area, CA
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FXUS66 KMTR 182124 AFDMTR

Area Forecast Discussion National Weather Service San Francisco Bay Area 224 PM PDT Fri Sep 18 2020

SYNOPSIS. Near seasonable and mild conditions continue through the weekend. Temperatures look to cool slightly to start then next work week. The mid to late portion of the next week offers a steady warming and drying trend.


DISCUSSION. as of 02:23 PM PDT Friday . Cloud cover has remained intact though much of the late morning, but cleared behind a weak front. This front has been pushing inland from a low pressure along the coast of Oregon since last night. Surface winds have stayed weak with a few areas in the upper altitudes across North Bay seeing breezier conditions, around 20 mph gusts. Winds have also began to shift behind the front with more of a westerly flow, which is expected to remain into early evening. The trough to the north will continue to push inland with the center of the associated low crossing over Oregon tonight. Winds from the surface up to 850 mb are forecast to become more Northerly this evening and overnight. The shift in winds could limit the return of the marine layer tonight. The HRRR and the NAM are indicating a weak/shallow marine layer tonight while the EURO and the GFS are not showing significant development.

Saturday morning's compressed marine layer looks to reduce chances for patchy fog and drizzle. A compressed marine layer could allow for earlier marine layer mixing and slightly warmer conditions along the coast. The models are in good agreement that winds from the surface to 700 mb level will stay Northerly for most of the day heading into Sunday. Concerns from this track of wind include drier conditions in the afternoon and the possibility to pull smoke from the August Complex back into the region. Luckily, winds look to remain generally weak. Sunday looks to continue the pattern of drier conditions and temperatures rising at a gradual pace.

Into the next work week: There is some disagreement between models on the positioning of a slight trough on Monday. They do agree on some cooling, specifically for more interior areas. This looks to be short lived, as temperatures are set to rebound and warm at a steady pace for the second half of the work week as weak ridging transits the region.

Longer term models are showing another trough moving over the West Coast the weekend after this. The main disagreement is on the depth of the trough with the GFS offering a deeper, but more widespread gradient. Again this is more than 170 hours out and model output can change wildly in that time. This is something that we will be monitoring.

AVIATION. As of 10:45 AM PDT Friday . for 18Z TAFS. VFR with high clouds moving over the general region from both a weak cold front to the north and the remnants of tropical system Karina to the south. Breezy onshore winds expected this afternoon with a few stronger gusts possible. Expecting a return of the marine layer for IFR-MVFR cigs for tonight as winds ease.

Vicinity of KSFO . VFR, though a patch of thickening clouds sits just to the west over Half Moon Bay. Most cloud cover Friday afternoon should be from passing high clouds. Winds are still forecast to be from the west and increase strengthen into the afternoon to around 15k gust 20kt. Borderline IFR-MVFR cigs overnight.

SFO Bridge Approach . Similar to SFO.

Monterey Bay Terminals . High clouds continue to pass over the terminals, but otherwise VFR with onshore flow. Winds remain onshore and breezy Friday afternoon with a few stronger gusts through the Salinas valley. Cigs lower once again overnight for IFR conditions.

MARINE. as of 02:21 PM PDT Friday . Light northwest winds with locally stronger northwest winds south of Pigeon Point, into the northern Monterey Bay, and south of Point Sur along the Big Sur coast. Winds are forecast to increase Saturday. Mixed seas prevail with a shorter period northwest swell and a moderate period south to southwest swell.

MTR WATCHES/WARNINGS/ADVISORIES. Tngt. SCA . Mry Bay 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



PUBLIC FORECAST: Garcia/Murdock AVIATION: DK MARINE: DK

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Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
RTYC1 - 9414523 - Redwood City, CA 9 mi52 min NW 14 G 17 72°F 73°F1015.3 hPa
AAMC1 - 9414750 - Alameda, CA 11 mi52 min W 8.9 G 12 69°F 68°F1015 hPa
OMHC1 - 9414769 - Oakland Middle Harbor Met, CA 13 mi52 min W 16 G 20
LNDC1 13 mi52 min W 8.9 G 14 70°F 1014.7 hPa
OBXC1 13 mi52 min 67°F 62°F
PXOC1 - 9414311 - San Francisco (Pier 1), CA 14 mi52 min WSW 11 G 19 67°F 1013.9 hPa
OKXC1 - 9414776 - Oakland (Berth 34), CA 14 mi52 min W 15 G 19 67°F 1014.5 hPa
PXSC1 14 mi52 min 68°F
FTPC1 - 9414290 - San Francisco, CA 16 mi52 min WSW 5.1 G 14 63°F 63°F1015.4 hPa
46237 - San Francisco Bar, CA (142) 21 mi52 min 60°F3 ft
TIBC1 - Tiburon Pier, San Francisco Bay, CA 21 mi41 min SW 11 67°F 1015 hPa
PPXC1 - 9414847 - Richmond (Point Potrero), CA 21 mi52 min WSW 15 G 19 69°F 1014.6 hPa
RCMC1 - 9414863 - Richmond, CA 22 mi52 min SW 8 G 13 69°F 64°F1014.2 hPa
46026 - SAN FRANCISCO - 18NM West of San Francisco, CA 29 mi42 min W 3.9 G 3.9 62°F1015.9 hPa
UPBC1 31 mi52 min W 16 G 20
MZXC1 - 9415102 - Martinez-Amorco CA 31 mi52 min WSW 12 G 16 73°F 69°F1013.8 hPa
DPXC1 - 9415141 - Davis Point, San Pablo Bay, CA 31 mi52 min SW 9.9 G 12 73°F 1013.8 hPa
PCOC1 - 9415144 - Port Chicago, CA 34 mi52 min W 13 G 15 74°F 69°F1013.5 hPa
46012 - HALF MOON BAY - 24NM South Southwest of San Francisco, CA 35 mi42 min WNW 1.9 G 1.9 62°F 1016 hPa61°F
PSBC1 - 9415115 - Pittsburg (Suisun Bay), CA 38 mi52 min WNW 9.9 G 14 76°F 1013.3 hPa
SFXC1 - San Francisco Bay Reserve, CA 44 mi97 min WNW 13

Wind History for Redwood City, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
San Francisco, San Francisco International Airport, CA2 mi26 minW 15 G 2110.00 miA Few Clouds73°F57°F59%1014.5 hPa
San Carlos Airport, CA7 mi35 minWNW 1510.00 miA Few Clouds75°F57°F54%1014.9 hPa
Oakland, Metro Oakland International Airport, CA8 mi29 minW 1710.00 miA Few Clouds75°F59°F58%1014.8 hPa
Hayward, Hayward Air Terminal, CA11 mi28 minW 910.00 miFair74°F57°F57%1015.6 hPa
Half Moon Bay Airport, CA12 mi27 minW 68.00 miA Few Clouds64°F59°F83%1015.9 hPa
Palo Alto Airport, CA14 mi95 minNNW 1610.00 miClear73°F59°F61%1014.6 hPa

Link to 5 minute data for KSFO

Wind History from SFO (wind in knots)
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Last 24hrW14NW13NW11NW7NW8W9W8NW8W7CalmNW8W7W5CalmCalmNW5NW10NW7NW8NW11NW13W17W18W15
G21
1 day agoW16W17W15NW8W11NW7W7NW7NW5NW4NW4NW4NW4NW5NW4CalmCalmNW12NW12NW19W21NW17W19W16
2 days agoW20W18W11W13W12W10W9W5NW6NW4NW6NW3CalmCalmCalmCalmE3E5E5E5NW12NW17W18W21

Tide / Current Tables for Coyote Point Marina, San Francisco Bay, California (2)
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Coyote Point Marina
Click for Map
Fri -- 01:16 AM PDT     7.57 feet High Tide
Fri -- 06:54 AM PDT     Sunrise
Fri -- 07:35 AM PDT     -0.00 feet Low Tide
Fri -- 08:15 AM PDT     Moonrise
Fri -- 01:56 PM PDT     7.34 feet High Tide
Fri -- 07:11 PM PDT     Sunset
Fri -- 08:00 PM PDT     0.56 feet Low Tide
Fri -- 08:25 PM PDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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6.87.57.36.24.52.61.10.20.10.82.245.76.97.36.85.53.82.210.612.13.7

Tide / Current Tables for Oyster Point 2.8 mi E, South San Francisco Bay, California Current
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Oyster Point 2.8 mi E
Click for Map
Fri -- 01:50 AM PDT     -0.00 knots Slack
Fri -- 05:14 AM PDT     -1.96 knots Max Ebb
Fri -- 06:54 AM PDT     Sunrise
Fri -- 08:11 AM PDT     0.00 knots Slack
Fri -- 08:15 AM PDT     Moonrise
Fri -- 11:12 AM PDT     1.25 knots Max Flood
Fri -- 02:21 PM PDT     -0.00 knots Slack
Fri -- 05:38 PM PDT     -1.84 knots Max Ebb
Fri -- 07:11 PM PDT     Sunset
Fri -- 08:24 PM PDT     Moonset
Fri -- 08:30 PM PDT     0.01 knots Slack
Fri -- 11:33 PM PDT     1.25 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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10.5-0.1-1-1.6-1.9-1.8-1.1-0.20.511.21.20.80.2-0.5-1.3-1.8-1.8-1.3-0.50.30.91.2

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.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Ground Weather Radar Station San Francisco Bay Area, CA
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