Friday, July10, 2020
Privacy Policy
L-36.com


Marine Weather and Tides
East Palo Alto, 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 5:55AMSunset 8:32PM Friday July 10, 2020 8:44 PM PDT (03:44 UTC) Moonrise 11:16PMMoonset 10:18AM Illumination 69% Phase: Waning Gibbous; Moon at 20 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
    EDIT      (on/off)   Help
PZZ530 San Pablo Bay, Suisun Bay, The West Delta And The San Francisco Bay North Of The Bay Bridge- 222 Pm Pdt Fri Jul 10 2020
.small craft advisory in effect until 9 pm pdt this evening...
Tonight..SW winds 5 to 15 kt.
Sat..SW winds 10 to 20 kt with gusts up to 25 kt.
Sat night..SW winds 5 to 15 kt.
Sun..SW winds 5 to 15 kt with gusts up to 25 kt.
Sun night..SW winds 5 to 15 kt.
Mon..SW winds 10 to 20 kt with gusts up to 30 kt.
Mon night..SW winds 5 to 15 kt.
Tue..SW winds 5 to 15 kt.
Wed..SW winds 5 to 15 kt.
PZZ500 222 Pm Pdt Fri Jul 10 2020
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... Fresh to near gale conditions from the northwest will dominate the waters through the weekend. Conditions will ease during the first half of the next work week.


7 Day Forecast for Stanford CDP, CA
   Hourly   EDIT   Help
location: 37.437, -122.153     debug


Area Discussion for - San Francisco/Monterey Bay Area, CA
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
FXUS66 KMTR 110026 AFDMTR

Area Forecast Discussion National Weather Service San Francisco Bay Area 526 PM PDT Fri Jul 10 2020

SYNOPSIS. Very warm and dry conditions will continue inland through the weekend, with Sunday expected to be the warmest day. However, onshore flow will keep areas near the coast mild. These conditions will also help to maintain areas of night and morning coastal low clouds, with fog also possible. An inland cooling trend is forecast for next week.

DISCUSSION. as of 03:00 PM PDT Friday . Surface pressure gradient between SFO and ACV of -5 mb was observed between 19Z and 21Z today as the marine layer has continued its compression despite having made some slight returns earlier this morning. The Fort Ord Profiler indicates that the marine layer depth has remained under 1000 ft over the course of the day. Low strato cumulus can be seen moving ashore this afternoon, especially along the Bay Area and northern coastlines of the CWA. No convection is expected as result, but will be monitored. The observed movement of the low-to-mid-level clouds are a result of the influence from the 596dm 500mb ridge centered over the Southwestern US and are expected to dissipate going into the overnight hours.

The upper-level ridge is expected to continue its expansion through this weekend. As such, temps along the coast are expected to remain mild through the period, with some interior locations easily reaching the 90s and potentially the 100 degree mark by Sunday. Models are in agreement that as the ridge intensifies and the marine layer subsides through the weekend, both coastal and interior locations will experience a gradual build in their temps. Coastal highs are expected to be around 3-5 degrees F warmer than today's by Sunday.

As for the interior, the shallow marine layer coupled with weakened offshore flow will result in high temperatures making into the mid-90s across the North Bay, East Bay, South Bay, and San Benito county on Saturday and upper-90s on Sunday.

Due to the nature of these hot and dry conditions across the interior, overnight humidity recovery will be fairly poor, especially Saturday night and into Sunday morning. Models are suggesting that winds will remain rather light through that period, which should help to mitigate both heat and fire weather concerns. Nevertheless, both should be kept in mind, especially for isolated areas across the interior (i.e. the East Bay Hills and other high-terrain areas well-inland) where temps could potentially surpass the 100 F degree mark and where RH values are progged to fall under 10% during the day.

Looking ahead into next week, both of today's ECMWF and GFS runs are suggesting that the upper-level ridge will begin to weaken during the first half of next week and our mid-level heights will gradually return closer to average as a weak disturbance moves into northern California next Wednesday and Thursday. Its influence will lead to an increase in offshore winds by the middle of next week. As such, we can expect for temps to be 10-15 degrees cooler than Sunday's highs across the interior by next Thursday and Friday.

AVIATION. As of 4:50 PM PDT Friday . A strong 5MB northerly gradient from ACV to SFO continues to sweep the low clouds southward along the coast while high clouds continue to move across the Bay Area. Low clouds will return overnight however they are forecast return late tonight as it will take time for them to redevelop over the coastal waters. The Fort Ord Profiler depict the marine layer at or below 1000 ft. With little change expected in the depth of the marine layer we anticipated the low clouds to once again be confined to the Monterey Bay terminals overnight.

Vicinity of KSFO . VFR conditions will prevail through the forecast period with scattered high clouds streaming across the region. Moderately strong westerly winds will persist through this afternoon and evening with sustained winds in the 15-20 kt range. Winds will decrease overnight to around 5-10 kt then increase once again Saturday afternoon to around 15-20 kt.

SFO Bridge Approach . Similar to KSFO.

Monterey Bay Terminals . VFR conditions will prevail this afternoon with low clouds temporarily returning between 02z to 06z this evening. Low clouds will push back in after 10z tonight with fog and LIFR/VLIFR VSBYS possible early Saturday morning. Clearing is anticipated around 17z Saturday. Moderate winds will ease overnight becoming light and locally variable overnight.

MARINE. as of 2:22 PM PDT Friday . Fresh to near gale conditions from the northwest will dominate the waters through the weekend. Conditions will ease during the first half of the next work week.

MTR WATCHES/WARNINGS/ADVISORIES. Tngt. SCA . Pt Reyes to Pigeon Pt 0-10 nm SCA . Pigeon Pt to Pt Pinos 0-10 nm 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 SCA . SF Bay until 9 PM SCA . Mry Bay until 9 PM



PUBLIC FORECAST: Diaz/DK AVIATION: CW MARINE: BFG

Visit us at www.weather.gov/sanfrancisco

Follow us on Facebook, Twitter, and YouTube at: www.facebook.com/nwsbayarea www.twitter.com/nwsbayarea www.youtube.com/nwsbayarea


Weather Reporting Stations
   EDIT       (on/off)   Help   NOTE: Click on distance to see the station location on a map
Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
RTYC1 - 9414523 - Redwood City, CA 6 mi57 min NNW 8.9 G 11 67°F 74°F1015.7 hPa
AAMC1 - 9414750 - Alameda, CA 24 mi57 min W 5.1 G 6 63°F 71°F1015.4 hPa
LNDC1 26 mi57 min WSW 7 G 8 64°F 1015.2 hPa
OBXC1 27 mi57 min 63°F 55°F
OMHC1 - 9414769 - Oakland Middle Harbor Met, CA 27 mi57 min S 1 G 1.9
OKXC1 - 9414776 - Oakland (Berth 34), CA 28 mi57 min WNW 2.9 G 5.1 62°F 1015.1 hPa
PXSC1 28 mi57 min 62°F 55°F
PXOC1 - 9414311 - San Francisco (Pier 1), CA 28 mi57 min SSW 4.1 G 6 61°F 1014.3 hPa
FTPC1 - 9414290 - San Francisco, CA 30 mi57 min WSW 7 G 16 58°F 62°F1015.4 hPa
PPXC1 - 9414847 - Richmond (Point Potrero), CA 34 mi57 min S 15 G 18 61°F 1015.1 hPa
TIBC1 - Tiburon Pier, San Francisco Bay, CA 35 mi59 min SE 4.1 64°F 1014 hPa
46237 - San Francisco Bar, CA (142) 35 mi75 min 60°F4 ft
RCMC1 - 9414863 - Richmond, CA 36 mi57 min S 7 G 9.9 64°F 65°F1014.3 hPa
46012 - HALF MOON BAY - 24NM South Southwest of San Francisco, CA 39 mi195 min NW 12 G 14 1017.5 hPa
MZXC1 - 9415102 - Martinez-Amorco CA 41 mi57 min WSW 8 G 9.9 80°F 70°F1013.5 hPa
46026 - SAN FRANCISCO - 18NM West of San Francisco, CA 42 mi165 min WNW 14 G 16 1016.5 hPa
UPBC1 42 mi57 min W 9.9 G 13
PCOC1 - 9415144 - Port Chicago, CA 43 mi57 min SW 11 G 16 81°F 72°F1013 hPa
DPXC1 - 9415141 - Davis Point, San Pablo Bay, CA 43 mi57 min SW 9.9 G 12 74°F 1013.5 hPa
PSBC1 - 9415115 - Pittsburg (Suisun Bay), CA 44 mi57 min WNW 8 G 11 81°F 1012.9 hPa
46042 - MONTEREY - 27NM West of Monterey Bay, CA 47 mi165 min NW 19 G 23 56°F 54°F
MLSC1 - Moss Landing, South Harbor, CA 48 mi188 min SW 6 G 17 56°F 1016.5 hPa53°F
ELXC1 - Elkhorn Slough Reserve, CA 48 mi120 min SSW 5.1 59°F 55°F
46092 - MBM1 48 mi86 min NW 14 56°F 55°F1015.2 hPa (-1.3)

Wind History for Redwood City, CA
(wind in knots)    EDIT      (on/off)   Help
9
PM
10
PM
11
PM
12
AM
1
AM
2
AM
3
AM
4
AM
5
AM
6
AM
7
AM
8
AM
9
AM
10
AM
11
AM
12
PM
1
PM
2
PM
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
Last
24hr
NW6
G10
N4
NW3
NW2
NW3
NW2
NW4
NW4
NW5
NW5
NW4
NW1
N5
NW8
G11
N6
NW7
NW10
NW10
NW14
NW11
G14
NW12
NW11
NW10
NW9
1 day
ago
NW8
NW9
W6
G9
W7
NW2
G5
S4
SW2
S3
SW1
NW4
--
SE2
NE2
N3
N6
N7
G10
NW9
NW10
G13
N13
W12
NW8
G11
NW10
W12
NW5
G8
2 days
ago
NW8
NW6
G10
NW6
W5
W3
NW4
S3
S3
S3
S2
NW2
SE3
N1
N4
N5
G8
N8
G11
NW12
G15
N12
G16
W13
G16
NW17
NW19
W16
W13
G16
W11
G14

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports. Follow links for more data.
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Palo Alto Airport, CA2 mi4.7 hrsNNW 1010.00 miPartly Cloudy75°F57°F54%1015.6 hPa
San Carlos Airport, CA10 mi58 minW 610.00 miMostly Cloudy77°F50°F39%1015.2 hPa
San Jose, San Jose International Airport, CA11 mi52 minNNW 810.00 miMostly Cloudy74°F52°F46%1014.8 hPa
Hayward, Hayward Air Terminal, CA15 mi51 minWNW 610.00 miFair67°F55°F66%1015.7 hPa
San Jose / Reid / Hillv, CA17 mi58 minNW 810.00 miMostly Cloudy79°F51°F39%1015.2 hPa
Oakland, Metro Oakland International Airport, CA18 mi52 minW 1110.00 miMostly Cloudy66°F54°F65%1015.1 hPa
San Francisco, San Francisco International Airport, CA18 mi49 minNW 1810.00 miMostly Cloudy and Breezy61°F51°F70%1015.1 hPa
Half Moon Bay Airport, CA22 mi50 minNNW 46.00 miFair with Haze57°F51°F82%1016.6 hPa
Livermore, Livermore Municipal Airport, CA23 mi52 minW 610.00 miFair83°F36°F19%1013.6 hPa

Link to 5 minute data for KPAO

Wind History from PAO (wind in knots)
5
PM
6
PM
7
PM
8
PM
9
PM
10
PM
11
PM
-12
PM
1
AM
2
AM
3
AM
4
AM
5
AM
6
AM
7
AM
8
AM
9
AM
10
AM
11
AM
12
PM
1
PM
2
PM
3
PM
4
PM
Last 24hr----------------------------5--NW7N7N9N7NW10N12--N10
1 day ago----------------------------Calm4CalmN5--N9N10--N13--
2 days ago----------------------------3N34N4--N11N12N17N17--

Tide / Current Tables for Palo Alto Yacht Harbor, California
   EDIT   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Palo Alto Yacht Harbor
Click for Map
Fri -- 12:00 AM PDT     2.86 feet Low Tide
Fri -- 04:46 AM PDT     7.43 feet High Tide
Fri -- 05:56 AM PDT     Sunrise
Fri -- 11:18 AM PDT     Moonset
Fri -- 12:10 PM PDT     0.42 feet Low Tide
Fri -- 05:57 PM PDT     7.21 feet High Tide
Fri -- 08:31 PM PDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

12
am
1
am
2
am
3
am
4
am
5
am
6
am
7
am
8
am
9
am
10
am
11
am
12
pm
1
pm
2
pm
3
pm
4
pm
5
pm
6
pm
7
pm
8
pm
9
pm
10
pm
11
pm
2.93.34.567.17.46.85.54.22.91.80.90.40.71.93.85.66.87.26.96.25.44.63.7

Tide / Current Tables for Dumbarton Point 2.3 mi NE, South San Francisco Bay, California Current
   EDIT      (on/off)   Help   One Week of Data
Dumbarton Point 2.3 mi NE
Click for Map
Fri -- 02:02 AM PDT     0.79 knots Max Flood
Fri -- 04:50 AM PDT     -0.01 knots Slack
Fri -- 05:56 AM PDT     Sunrise
Fri -- 09:27 AM PDT     -1.09 knots Max Ebb
Fri -- 11:18 AM PDT     Moonset
Fri -- 12:09 PM PDT     0.00 knots Slack
Fri -- 02:54 PM PDT     1.17 knots Max Flood
Fri -- 06:20 PM PDT     -0.01 knots Slack
Fri -- 08:30 PM PDT     Sunset
Fri -- 10:09 PM PDT     -0.69 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

12
am
1
am
2
am
3
am
4
am
5
am
6
am
7
am
8
am
9
am
10
am
11
am
12
pm
1
pm
2
pm
3
pm
4
pm
5
pm
6
pm
7
pm
8
pm
9
pm
10
pm
11
pm
0.10.60.80.70.4-0-0.4-0.7-0.9-1.1-1-0.6-0.10.511.210.70.2-0.2-0.4-0.6-0.7-0.6

Weather Map
       (on/off)   Help Weather Map
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
Wind Forecast for San Francisco/Monterey Bay Area, CA (23,6,7,8)
      (on/off)   Help

Ground Weather Radar Station San Francisco Bay Area, CA
   (on/off)   Help
weather_mapweather_map weather_map

Ad by Google

Cookie Policy:
This website uses cookies to save your settings. No personal information is saved. I do not collect statistics on your visit. You can disable cookies in your browser if you like but it is not recommended for this site. I do not sell cookies. Go to a bakery for that. In fact I do not sell anything. To disable cookies from L-36.com, please refer to the Help button in your browser.
Privacy Policy:
I do not sell or share any user data or anything else for that matter. The only personal information I save is in the site log which has a line for each page view which includes the IP address your browser sends in the header as well as which page you requested. I use this to block hackers and other bad actors. I do not use this raw data to create profiles on users. I periodically delete the log files. If you are subject to CCPA, Google ads on this site will not be based on your past behavior so you will likely not see an ad for a lawn mower just because you looked for one at a big box website. I do not believe this site is subject to CCPA but I am doing what I can to follow the guidelines anyway.
Disclaimer:
The information on this web site has not been checked for accuracy. It is for entertainment purposes only and should be independently verified before using for any other reason. There are five sources. 1) Documents and manuals from a variety of sources. These have not been checked for accuracy and in many cases have not even been read by anyone associated with L-36.com. I have no idea of they are useful or accurate, I leave that to the reader. 2) Articles others have written and submitted. If you have questions on these, please contact the author. 3) Articles that represent my personal opinions. These are intended to promote thought and for entertainment. These are not intended to be fact, they are my opinions. 4) Small programs that generate result presented on a web page. Like any computer program, these may and in some cases do have errors. Almost all of these also make simplifying assumptions so they are not totally accurate even if there are no errors. Please verify all results. 5) Weather information is from numerous of sources and is presented automatically. It is not checked for accuracy either by anyone at L-36.com or by the source which is typically the US Government. See the NOAA web site for their disclaimer. Finally, tide and current data on this site is from 2007 and 2008 data bases, which may contain even older data. Changes in harbors due to building or dredging change tides and currents and for that reason many of the locations presented are no longer supported by newer data bases. For example, there is very little tidal current data in newer data bases so current data is likely wrong to some extent. This data is NOT FOR NAVIGATION. See the XTide disclaimer for details. In addition, tide and current are influenced by storms, river flow, and other factors beyond the ability of any predictive program.