Saturday, April4, 2020
Privacy Policy
L-36.com


Marine Weather and Tides
Seacliff, 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 6:46AMSunset 7:34PM Saturday April 4, 2020 8:40 PM PDT (03:40 UTC) Moonrise 2:45PMMoonset 4:00AM Illumination 91% Phase: Waxing Gibbous; Moon at 12 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
PZZ535 Monterey Bay- 830 Pm Pdt Sat Apr 4 2020
.small craft advisory in effect from 7 am pdt Sunday through Sunday afternoon...
Tonight..SW winds 10 to 20 kt with gusts up to 25 kt. Wind waves 3 to 4 ft. W swell 3 to 4 ft at 9 seconds. Showers.
Sun..SW winds 15 to 25 kt with gusts up to 30 kt. Wind waves 5 to 6 ft. W swell 3 to 4 ft at 10 seconds. Showers and a slight chance of Thunderstorms.
Sun night..N winds up to 10 kt. Wind waves 1 to 2 ft. W swell 3 to 5 ft at 10 seconds. Showers likely.
Mon..SW winds up to 10 kt. Wind waves 1 to 2 ft. W swell 3 to 5 ft at 9 seconds. A chance of showers.
Mon night..N winds up to 10 kt. Wind waves 1 to 2 ft. W swell 4 to 6 ft at 9 seconds. A slight chance of showers.
Tue..W winds 10 to 20 kt with gusts up to 25 kt. Wind waves 3 to 4 ft. W swell 3 to 5 ft at 9 seconds.
Tue night..NW winds 5 to 10 kt. Wind waves 1 ft. W swell 4 to 6 ft at 9 seconds and S around 2 ft at 18 seconds.
Wed..W winds 5 to 10 kt. Wind waves 1 ft. W swell 5 to 7 ft and S around 2 ft.
Thu..SW winds up to 10 kt. Wind waves 1 ft. W swell 4 to 6 ft and S around 2 ft. Winds and wind waves higher in and near Thunderstorms. Locally lower winds and seas across sheltered portions of the bay.
PZZ500 830 Pm Pdt Sat Apr 4 2020
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... A 998 mb low will move into northern california Sunday morning. Southwesterly winds will increase overnight ahead of the low. Winds will switch to westerly Sunday afternoon and decrease unday night. There is a slight chance of Thunderstorms on Sunday. A prevailing moderate northwesterly swell will persist through much of the forecast period.


7 Day Forecast for Marine Location Near Seacliff, CA
   Hourly   EDIT   Help
location: 36.97, -121.91     debug


Area Discussion for - San Francisco/Monterey Bay Area, CA
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
FXUS66 KMTR 050021 AFDMTR

Area Forecast Discussion National Weather Service San Francisco Bay Area 521 PM PDT Sat Apr 4 2020

SYNOPSIS. Light to locally moderate showers will continue this afternoon and tonight as a cold front moves through the region. Showers overnight become a steady rain tomorrow as another system drops down the coast. Locally heavy rain, possible thunderstorms and gusty winds during the day tomorrow. Precipitation becomes showers tomorrow night into Monday as the upper low passes over the region. Showers may linger for the Central Coast Tuesday and Wednesday as the upper low slowly exits the region followed by a warming and drying trend for the second half of next week.

DISCUSSION. as of 01:45 PM PDT Saturday . Radar shows showers continue across the region this afternoon as a cold front moves through. Rainfall amounts have varied with as little as a few hundredths in some locations to over a quarter of an inch near Santa Rosa and along the coastal areas of the North Bay. Showers will continue the rest of the afternoon and this evening before turning into a more steady rainfall tomorrow as another cold front gets ready to pass through the area. The front is expected to reach the North Bay tomorrow morning before moving south of the Bay Area and into the Monterey Region in the late afternoon.

Tomorrow's system will be better organized with more upper level support creating some locally heavier rainfall along with periods of gusty winds and possible thunderstorms. Latest QPF guidance keeps the bulk of the heavier precipitation focused from the Santa Cruz mountains southward to the Santa Lucia's and Big Sur coast while reducing rainfall totals somewhat for areas elsewhere. Generally expect around 0.50"-0.75" for lower elevations and the Bay Area with 0.75"-1.25" around the Monterey Bay and 2-3 inches in the hills of the Central Coast. Locally higher rainfall totals will be possible for some of the Big Sur mountains. There will be a slight chance of thunderstorms across the region tomorrow afternoon through Monday afternoon, though the best chances will be outside of our area as the core of the upper low is still expected to remain offshore. Additionally, expect occasionally gusty winds as the front moves through tomorrow, particularly along the Big Sur Coast south of the Monterey Peninsula. Therefore the Wind Advisory for the southern Monterey Bay, Monterey Peninsula, Carmel Highlands, and Big Sur Coast will remain in effect for tomorrow morning into the early evening.

Showers will persist into tomorrow evening as the main surface boundary moves through, with the best rainfall chances at that point south of the Bay Area. Precipitation chances will remain in the forecast for Monday as the upper low slowly makes its way southward across the region. Activity will likely be more scattered with the higher elevations of the Central Coast and southward most likely to see thunderstorms on Monday. Little has changed with regard to snow levels. Sunday, when the bulk of the rain is expected, will see snow levels above 4500 feet before lowering to around 3000/3500 feet on Monday when precipitation is more scattered. Higher peaks may see a dusting though.

The upper low will then slowly make its way southward through mid-week. There are some timing differences between the GFS and the ECMWF at this point. The GFS moves the system into soCal more quickly and ends shower chances for the Central Coast by Tuesday afternoon while the ECMWF lags behind enough to keep showers lingering into Wednesday. Once the upper low does finally exit, high pressure will build back in late next week leading to warming and drying. Many interior locations may be in the low 70s towards the end of the week.

AVIATION. as of 5:20 PM PDT Saturday . The first of two systems is moving through the Bay Area this afternoon. This will bring light rain and mostly MVFR cigs through early evening. A short break from the rain in the Bay Area tonight with cigs rising. Southerly winds will start to increase rapidly after 09Z ahead of the second system. Could see gusts as high as 35 kt by Sunday morning as well as rain and reduced vsbys. Destabilizing atmosphere will bring a possibility of thunderstorms after 18Z.

Vicinity of KSFO . MVFR cigs will prevail with bases around 1500 ft. Bases could rise to 2500 ft tonight in between systems. Southerly winds to 15 kt increasing after 09Z with speeds as high as 20-25 kt gusting to 30-35 kt after 13Z. Winds switch to southwest and decrease after 19Z. Possibility of thunderstorms and lower cigs heading into Sunday afternoon.

SFO Bridge Approach . Similar to KSFO.

Monterey Bay Terminals . A weak frontal system will bring a few showers this evening with areas of MVFR cigs. The front will stall out and intensify early Sunday morning as the second system approaches. Rain should pick up after 12-15Z with MVFR cigs prevailing. Southerly winds increasing to 20-25 kt after 15Z especially in the Salinas Valley where gusts over 35 kt is possible. Possibility of thunderstomrs after 18Z.

MARINE. as of 04:57 PM PDT Saturday . Southwesterly winds will prevail through tonight as a storm system moves across the coastal waters. This storm will bring wet weather to the region through early next week. High pressure will return by the middle of next week bringing a return of drier weather. A prevailing moderate northwesterly swell will persist through much of the forecast period.

MTR WATCHES/WARNINGS/ADVISORIES. Tngt. Wind Advisory . CAZ530 SCA . Pt Arena to Pigeon Pt 10-60 nm from 12 AM SCA . Pigeon Pt to Pt Piedras Blancas 10-60 nm from 12 AM SCA . Pt Arena to Pt Reyes 0-10 nm from 12 AM SCA . Pt Reyes to Pigeon Pt 0-10 nm from 12 AM



PUBLIC FORECAST: AS AVIATION: W Pi MARINE: CW

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
MLSC1 - Moss Landing, South Harbor, CA 13 mi32 min SSW 11 G 37 55°F 1010.3 hPa51°F
ELXC1 - Elkhorn Slough Reserve, CA 14 mi56 min SW 8 55°F 1029 hPa52°F
46092 - MBM1 16 mi133 min S 16 53°F 54°F1010.6 hPa (-1.2)
46240 - Cabrillo Point, Monterey Bay, CA (158) 24 mi41 min 57°F1 ft
MEYC1 25 mi65 min SSW 11 G 16 54°F 59°F1010.2 hPa
46042 - MONTEREY - 27NM West of Monterey Bay, CA 29 mi31 min SSW 14 G 18 55°F 55°F1009.7 hPa53°F
RTYC1 - 9414523 - Redwood City, CA 40 mi53 min 60°F
46239 - Point Sur, CA (157) 44 mi41 min 56°F4 ft

Wind History for Monterey, 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
NW11
G17
NW12
G15
NW8
G15
W6
G10
NW7
G11
W3
S3
NW4
W3
S4
S4
--
SE1
E2
E1
N7
SW8
G11
SW10
G14
SW13
G19
SW16
G21
SW13
G18
SW14
G19
SW13
G22
S12
1 day
ago
W5
G10
W7
G13
W4
G7
NW8
G11
W7
G14
NW10
G16
NW9
NW3
SW2
NW8
SW2
NW5
NW8
G13
NW9
G13
NW9
G14
NW12
G16
NW13
G18
NW11
G17
NW13
G20
NW16
G23
NW9
G17
NW9
G16
W10
G17
NW14
G21
2 days
ago
NW14
G20
NW15
G19
NW12
G17
W4
S5
S5
S4
S4
S4
SE3
S2
SE3
NE2
NE4
N7
NW10
N11
NW8
G11
NW9
G13
W11
G18
W12
G19
NW11
G16
SW5
G9
SW2
G7

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports. Follow links for more data.
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Watsonville, Watsonville Municipal Airport, CA7 mi48 minSSW 1210.00 miOvercast54°F52°F93%1010.1 hPa

Link to 5 minute data for KWVI

Wind History from WVI (wind in knots)
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 24hrE7E4E3N3N4CalmN3NW4NW4CalmNW4CalmCalmCalmS34SW8SW7SW8SW10SW12SW11SW10SW12
1 day agoE4N3CalmN3N4N4N3N4NW4N5N3NW4CalmCalm3SW65S7S7SW64S4SE7E6
2 days agoSE7S5CalmN3NW3N3N3NW5N3CalmW33E3CalmS4S9SW8SW11--W6--SW4CalmSE7

Tide / Current Tables for Santa Cruz, Monterey Bay, California
   EDIT   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Santa Cruz
Click for Map
Sat -- 02:05 AM PDT     2.34 feet Low Tide
Sat -- 04:59 AM PDT     Moonset
Sat -- 06:48 AM PDT     Sunrise
Sat -- 07:43 AM PDT     4.94 feet High Tide
Sat -- 02:35 PM PDT     -0.40 feet Low Tide
Sat -- 03:45 PM PDT     Moonrise
Sat -- 07:33 PM PDT     Sunset
Sat -- 09:24 PM PDT     4.54 feet High Tide
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
32.52.32.533.74.34.84.94.53.72.51.30.3-0.3-0.40.1123.144.54.54

Tide / Current Tables for Point Pinos, California Current
   EDIT      (on/off)   Help   One Week of Data
Point Pinos
Click for Map
Sat -- 12:55 AM PDT     -0.51 knots Max Ebb
Sat -- 04:20 AM PDT     0.00 knots Slack
Sat -- 04:58 AM PDT     Moonset
Sat -- 06:48 AM PDT     Sunrise
Sat -- 07:06 AM PDT     0.54 knots Max Flood
Sat -- 09:54 AM PDT     -0.00 knots Slack
Sat -- 01:04 PM PDT     -0.92 knots Max Ebb
Sat -- 03:45 PM PDT     Moonrise
Sat -- 04:54 PM PDT     0.00 knots Slack
Sat -- 07:33 PM PDT     Sunset
Sat -- 07:57 PM PDT     0.79 knots Max Flood
Sat -- 11:10 PM PDT     -0.00 knots Slack
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
-0.4-0.5-0.4-0.3-0.10.20.40.50.50.3-0-0.4-0.8-0.9-0.8-0.6-0.300.40.70.80.70.50.1

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.