Saturday, January18, 2020
Privacy Policy
L-36.com


Marine Weather and Tides
Rio del Mar, 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 7:17AMSunset 5:18PM Saturday January 18, 2020 3:43 PM PST (23:43 UTC) Moonrise 1:21AMMoonset 12:34PM Illumination 37% Phase: Third Quarter Moon; Moon at 23 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- 157 Pm Pst Sat Jan 18 2020
Tonight..NE winds 10 to 20 kt. Wind waves 1 to 2 ft. W swell 3 to 4 ft at 16 seconds, increasing to 5 to 7 ft at 16 seconds after midnight.
Sun..SE winds up to 10 kt. Wind waves 1 ft. W swell 6 to 8 ft at 16 seconds.
Sun night..W winds around 5 kt. Wind waves 1 ft. W swell 5 to 7 ft at 14 seconds.
Martin luther king jr day..W winds 5 to 10 kt. Wind waves 1 ft. W swell 5 to 7 ft at 13 seconds. A slight chance of rain.
Mon night..SW winds up to 10 kt. Wind waves 1 ft. W swell 6 to 8 ft at 19 seconds. A chance of rain.
Tue..S winds 10 to 20 kt with gusts up to 25 kt. Wind waves 1 ft. W swell 6 to 8 ft at 16 seconds. Rain likely.
Tue night..W winds around 5 kt. Wind waves 1 ft. W swell 10 to 12 ft at 16 seconds. A chance of rain.
Wed..N winds up to 10 kt. Wind waves 1 ft. W swell 7 to 9 ft.
Thu..N winds up to 10 kt. Wind waves 1 ft. W swell 5 to 7 ft. Locally lower winds and seas across sheltered portions of the bay.
PZZ500 157 Pm Pst Sat Jan 18 2020
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... High pressure over the great basin will maintain generally light to moderate offshore winds across the coastal waters through Sunday. Winds will turn southerly and increase by Monday morning ahead of an approaching frontal system. A moderate northwest swell will arrive late Saturday and Sunday while a larger northwest swell arrives the middle of next week.


7 Day Forecast for Marine Location Near Rio del Mar, CA
   Hourly   EDIT   Help
location: 36.96, -121.9     debug


Area Discussion for - San Francisco/Monterey Bay Area, CA
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
FXUS66 KMTR 182146 AFDMTR

Area Forecast Discussion National Weather Service San Francisco Bay Area 146 PM PST Sat Jan 18 2020

SYNOPSIS. High pressure building over the West Coast will result in dry and seasonably cool weather conditions through the weekend. Light rain will then be possible over the region Monday into Tuesday. Mostly dry conditions are then expected for the remainder of next week.

DISCUSSION. as of 01:45 PM PST Saturday . A zonal flow aloft continues to advect high level clouds across the entire region with temperatures in the upper 40s to middle 50s. While temperatures may still warm by a few degrees through the afternoon, do believe the high clouds have kept temperatures from warming to their maximum potential. Overnight conditions will again cool into the 30s across the interior with 40s closer to the coast. Patchy fog and low clouds may also develop in locations such as the North Bay and East Bay Valleys gain Sunday morning, similar to this morning.

Weak high pressure will then build over the region on Sunday and result in a slight warming trend, however high clouds may again limit a more significant warmup. Regardless, the forecast models indicate more widespread 50s to lower 60s by Sunday afternoon as offshore flow persists. Dry weather and seasonably cool conditions will persist into Monday as the ridge begins to shift to the east ahead of an approaching trough. In addition, onshore flow will return and advect moisture back across the region from late Monday night into Tuesday with the slight potential for light rain to develop over the region. This is in response to an approaching mid/upper level short-wave riding along the southern extent of the trough as it approaches the Pacific Northwest. Rain chances will increase from north to south on Tuesday as the main trough drives a frontal boundary into northern California. All indications are this system will be weak and begin to dissipate as it moves through the Bay Area on Tuesday. The North Bay could pick up a few tenths of an inch to around 0.50" through Tuesday while 0.25" or less is likely over the remainder of the San Francisco Bay Area and less than 0.10" for much of the Central Coast. While daytime temperatures won't vary much, overnight lows will be slightly warmer given the increase cloud cover through midweek.

Conditions dry out region-wide on Wednesday as another weak mid/upper level ridge builds in over the southern portion of the region. A few weak disturbances are then forecast to impact the Pacific Northwest and northern California late in the week. While a few of these systems may bring light rain to the northern portion of our region, widespread rainfall does not appear likely at this time.

AVIATION. as of 8:30 AM PST Saturday . for 18Z TAFs. Patchy fog persists over portions of the North Bay and East Bay Valleys this morning impacting KSTS and KLVK. Conditions will improve shortly after 18Z with VFR conditions likely region-wide through the day as OVC/BKN high clouds stream overhead. Wind speeds will generally remain light and offshore through the forecast period with high pressure over the Great Basin. Winds this afternoon near the coast are expected to become briefly onshore before becoming offshore this evening. May see a return of patchy fog and/or low clouds early Sunday in locations such as the North Bay Valleys.

Vicinity of KSFO . VFR. Generally light E to SE winds prevail this morning and are likely to become ENE around 5-8 kt for the remainder of the day. A few low clouds will linger through the morning, yet low ceilings are unlikely with an abundance of high level clouds overhead.

SFO Bridge Approach . Similar to KSFO.

Monterey Bay Terminals . VFR. Southeast winds around 8-12 kt will continue this morning at KSNS with light winds at KMRY. Winds will likely turn onshore by this afternoon, yet remain below 10 kt.

MARINE. as of 01:45 PM PST Saturday . High pressure over the Great Basin will maintain generally light to moderate offshore winds across the coastal waters through Sunday. Winds will turn southerly and increase by Monday morning ahead of an approaching frontal system. A moderate northwest swell will arrive late Saturday and Sunday while a larger northwest swell arrives the middle of next week.

MTR WATCHES/WARNINGS/ADVISORIES. Tngt. SCA . Pt Arena to Pt Reyes 0-10 nm from 9 PM SCA . Pt Arena to Pigeon Pt 10-60 nm from 9 PM SCA . Pt Reyes to Pigeon Pt 0-10 nm from 3 AM SCA . Pigeon Pt to Pt Piedras Blancas 10-60 nm from 3 AM



PUBLIC FORECAST: RGass AVIATION: RGass MARINE: RGass

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 12 mi71 min NE 7 G 20 55°F 1024.5 hPa41°F
ELXC1 - Elkhorn Slough Reserve, CA 13 mi118 min NNE 6 56°F 1028 hPa43°F
46092 - MBM1 16 mi86 min NNE 5.8 53°F 54°F1024 hPa (-2.5)
46240 - Cabrillo Point, Monterey Bay, CA (158) 23 mi43 min 54°F2 ft
MEYC1 25 mi67 min 55°F1023.8 hPa
46042 - MONTEREY - 27NM West of Monterey Bay, CA 29 mi43 min NNW 3.9 G 5.8 52°F 55°F1024.7 hPa46°F
46114 - West Monterey Bay, CA 29 mi43 min 55°F3 ft
RTYC1 - 9414523 - Redwood City, CA 41 mi61 min 54°F 52°F1025.9 hPa
46239 - Point Sur, CA (157) 44 mi43 min 55°F4 ft

Wind History for Monterey, CA
(wind in knots)    EDIT      (on/off)   Help
Last
24hr
1 day
ago
2 days
ago

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports. Follow links for more data.
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Watsonville, Watsonville Municipal Airport, CA6 mi50 minENE 610.00 miFair61°F39°F44%1024 hPa

Link to 5 minute data for KWVI

Wind History from WVI (wind in knots)
4
PM
5
PM
6
PM
7
PM
8
PM
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
Last 24hrNE4CalmN3CalmN4NW3CalmN3N5CalmCalmCalmN3NW3CalmCalmCalmCalmCalmSE4NE5E7E7E6
1 day agoN6CalmCalmCalmN3NW3CalmN3N4NW3N3N3N4N4CalmNW3N5CalmE3SE5CalmSW3SW4Calm
2 days agoW5W8SW3CalmN3N3N3N3N3N3CalmNE3E3CalmCalmCalmE6E4SE15
G23
NW7
G16
CalmE43S5

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 -- 01:21 AM PST     Moonrise
Sat -- 04:40 AM PST     5.59 feet High Tide
Sat -- 07:19 AM PST     Sunrise
Sat -- 11:38 AM PST     0.80 feet Low Tide
Sat -- 12:34 PM PST     Moonset
Sat -- 05:17 PM PST     Sunset
Sat -- 05:51 PM PST     3.46 feet High Tide
Sat -- 11:01 PM PST     2.07 feet Low 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
2.33.24.14.95.55.65.24.33.32.21.30.90.81.11.72.32.93.33.53.332.52.22.1

Tide / Current Tables for Point Pinos, California Current
   EDIT      (on/off)   Help   One Week of Data
Point Pinos
Click for Map
Sat -- 12:26 AM PST     0.00 knots Slack
Sat -- 01:21 AM PST     Moonrise
Sat -- 03:29 AM PST     0.60 knots Max Flood
Sat -- 06:34 AM PST     -0.00 knots Slack
Sat -- 07:18 AM PST     Sunrise
Sat -- 09:38 AM PST     -0.79 knots Max Ebb
Sat -- 12:34 PM PST     Moonset
Sat -- 01:42 PM PST     0.00 knots Slack
Sat -- 04:40 PM PST     0.57 knots Max Flood
Sat -- 05:18 PM PST     Sunset
Sat -- 07:41 PM PST     -0.00 knots Slack
Sat -- 10:03 PM PST     -0.45 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
-0.10.20.40.60.60.50.2-0.2-0.5-0.8-0.8-0.7-0.5-0.20.10.40.50.60.50.2-0.1-0.4-0.5-0.4

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 (18,4,5,8)
      (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.