Page Links Change Location One Page Printer Page HELP AIS Default setup SAVE setting RECALL saved setting

Marine Weather and Tides Las Lomas, 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 6:41AM

Sunset 5:58PM

Tuesday February 25, 2020 12:13 AM PST (08:13 UTC)

Moonrise 8:06AM

Moonset 8:01PM

Illumination 3%

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.

---

---

7 Day Forecast for Marine Location Near Las Lomas, CA

   Hourly   EDIT   Help

---

Area Discussion for - San Francisco/Monterey Bay Area, CA

      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
FXUS66 KMTR 250533 AFDMTR

Area Forecast Discussion National Weather Service San Francisco Bay Area 933 PM PST Mon Feb 24 2020

SYNOPSIS. Mostly clear skies and warmer temperatures will prevail through late in the week as high pressure builds inland and low- level flow remains offshore. An upper level trough of low pressure will approach from the northwest next weekend, bringing much cooler temperatures and the possibility of some rain.

DISCUSSION. as of 08:52 PM PST Monday . No updates this evening as the forecast remains on track. Skies are clear this evening as offshore flow brings dry air from northern California to the Bay Area and Central Coast. The offshore pressure gradient is increasing and gusts in the hills have increased to 20-30 mph. Expecting gusts up to 40 mph in the hills overnight as surface high pressure continues to build over the Great Basin. Lows tonight should be several degrees milder than last night due to the increased winds and warming airmass, with 40s in the lower elevations and 40s to low 50s in the hills.

Well above normal temperatures are expected this week as 850 mb temps warm to 12-14 C. Highs tomorrow will be very warm with 70s in most areas and even some low 80s in interior locations. Gusty winds in the hills will decrease tomorrow as the offshore gradient weakens. Throughout the upcoming week, combined with light winds and mostly sunny skies the weather will be ideal for any outdoor activities. This weekend, a pattern change will occur with cooler temperatures, increased winds and a chance of rain. For additional details, see the previous discussion.

PREV DISCUSSION. as of 1:45 PM PST Monday . Morning low clouds and fog ultimately dissipated by midmorning giving way to abundant sunshine. In fact, afternoon satellite imagery shows little in the way of clouds for much of the state. As predicted offshore flow has kicked in, which helped to clear the clouds. The increasing northerly flow combined with clear skies has resulted in warmer temperatures this afternoon. 24 hour trends as of 1 PM show many locations several degrees warmer than the chilly Sunday. Highs today will generally be in the 60s and 70s.

Offshore flow is forecast to strengthen overnight leading to clear skies and gusty winds in the hills. Despite the clear skies the offshore winds will keep temperatures on the milder side with lows in the 40s and possibly in the 50s for the hills. With an offshore gradient (SFO-WMC) of nearly 10 mb gusts in the 30-40 mph seem reasonable for the hills. Winds will be breezy, but much lighter in the valleys.

High pressure, offshore flow, and a mild airmass will keep above normal temperatures in place Tuesday through at least Friday. Forecast high temperatures were tweaked slightly higher from previous forecast with a few more interior locations heading toward 80 degrees. A few climate sites will also make a run at some records on Tuesday.

The medium range forecast is still interesting to watch. A possible brief change in the pattern still looks likely for next weekend. The ridge weakens on Saturday with slightly cooler temperatures. Sunday on the other hand may see the first measurable precip in over a month for the Bay Area. The details keep changing between model consensus, single run to run consistency, and varying ensemble guidance. One particular example is the ECMWF trending from over one half of precip a few days ago to today's run showing zero for Downtown San Francisco. Definitely not a trend you'd want to see if rain is wanted. On the flipside, a handful of ensembles have actually trended wetter. Needless to say, but rain chances next Sunday are low confidence. Therefore, will keep the low end chance (20-40%) currently in the forecast. If it does actually rain amounts will definitely be on the lower end given the lack of moisture tap. One item that is higher confidence for Sunday will be the temperature drop with highs back into the 50s and 60s.

High pressure rebuilds early next week with warming and drying.

AVIATION. as of 9:33 PM PST Monday . For 06z TAFs. Clear skies and light winds prevail across the region. Light offshore/dry surface flow is anticipated to develop tonight keeping skies clear of low clouds into Tuesday. Stronger north to northeasterly winds are forecast aloft which may result in LLWS across area terminals late tonight or early Tuesday morning.

Vicinity of KSFO . VFR conditions will prevail under clear skies and light offshore.

SFO Bridge Approach . VFR conditions will prevail under clear skies and light offshore flow. Some LLWS possible on final approach overnight into early Tuesday.

Monterey Bay Terminals . VFR conditions will prevail under clear skies and light offshore/dry flow in the boundary layer with southeast drainage winds for the Salinas Valley Tuesday morning.`

MARINE. as of 8:12 PM PST Monday . High pressure off the West Coast will maintain a strong northerly surface pressure gradients over the coastal waters into Tuesday with the strongest winds over the offshore waters. By midweek winds will ease slightly as the gradient eases while a longer period swell passes through. Wind and seas will increase later Saturday into Sunday as the next storm approaches from the Pacific Northwest.

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



PUBLIC FORECAST: ST/MM AVIATION: CW 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 Temp	Water Temp	Waves	Pressure	DewPt
ELXC1 - Elkhorn Slough Reserve, CA	3 mi	88 min	E 2.9	48°F			1024 hPa	46°F
46092 - MBM1	16 mi	56 min	NNW 7.8	54°F	54°F		1024.3 hPa (+0.0)
46240 - Cabrillo Point, Monterey Bay, CA (158)	18 mi	43 min			55°F	5 ft
MEYC1	19 mi	97 min	S 1.9 G 2.9	49°F	56°F		1025.3 hPa
46114 - West Monterey Bay, CA	33 mi	43 min			54°F	9 ft
46042 - MONTEREY - 27NM West of Monterey Bay, CA	34 mi	33 min	NNW 16 G 19	54°F	54°F		1025.1 hPa	50°F
46239 - Point Sur, CA (157)	40 mi	43 min			55°F	9 ft

Wind History for Monterey, CA

(wind in knots)    EDIT      (on/off)   Help

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

Last 24hr

SW2

NW3

SE2

S3

S3

SE3

SE3

S3

SE3

N5

N8

NW6

NW7

N7

N9

NW8 G11

NW9

W4 G7

SW2

SW2

SW3

W5

S3

--

1 day ago

NW8 G11

NW5 G8

W7

NW9 G13

W6 G10

NW6 G10

W5 G9

NW5 G9

W5 G11

NW9 G13

NW10 G13

NW10 G13

NW11 G17

NW11 G14

NW15 G20

NW11 G18

W8 G13

NW8

W3 G8

W3

NW6 G10

NW9 G14

NW6

SW3

2 days ago

SE3

SE2 G5

E5

SW3

S8

SW6 G13

W4 G9

W10 G16

NW10 G16

W11 G14

W11 G15

W8 G14

SW8

W6 G9

W2 G5

W5 G8

W4

W6 G9

W4 G9

---

Airport Reports

    EDIT      (on/off)   Help   Click EDIT to display multiple airports. Follow links for more data.

Airport	Dist	Age	Wind kt	Visibility	Sky/Weather	Temp	DewPt	Humidity	Pressure
Watsonville, Watsonville Municipal Airport, CA	6 mi	80 min	N 5	10.00 mi	Fair	48°F	43°F	83%	1025.4 hPa
Salinas, Salinas Municipal Airport, CA	16 mi	80 min	N 0	10.00 mi	Fair	48°F	43°F	83%	1026 hPa
Monterey Regional Airport, CA	19 mi	79 min	E 5	10.00 mi	Fair	48°F	42°F	80%	1026.3 hPa
Hollister, CA, CA	19 mi	78 min	N 0	10.00 mi	Fair	45°F	39°F	81%	1025.7 hPa

Link to 5 minute data for KWVI

Wind History from WVI (wind in knots)

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

12 AM

Last 24hr

NW5

N4

Calm

N3

N4

NW4

Calm

Calm

Calm

Calm

Calm

3

SE4

SW6

SW5

SW5

S5

S3

SW3

Calm

SW3

Calm

N5

Calm

1 day ago

Calm

Calm

W5

Calm

Calm

Calm

Calm

Calm

Calm

SW5

SW5

W4

SW6

SW7

SW7

5

5

SE5

E4

NE3

N3

N4

N4

N3

2 days ago

NW6

NW4

NW3

S7

Calm

Calm

N3

N3

W5

W4

SW5

W9

NW11 G15

W4

W5

W8

SW6

S8

SE5

Calm

NE3

W4

W3

SW3

---

Tide / Current Tables for Elkhorn Slough railroad bridge, Monterery Bay, California

   EDIT   Weekend mode (on/off)   (on/off)   Help   One Week of Data

---

Tide / Current Tables for Point Pinos, California Current

   EDIT      (on/off)   Help   One Week of Data

---

Weather Map

       (on/off)   Help Weather Map

---

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 (3,6,7,8)

      (on/off)   Help

---

Ground Weather Radar Station San Francisco Bay Area, CA

   (on/off)   Help

---

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.