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Marine Weather and Tides Las Lomas, CA Version 3.4

NOTICE 7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports. 6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at L-36.com. Allen

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Sunrise 6:31AM

Sunset 7:47PM

Sunday August 25, 2019 4:12 PM PDT (23:12 UTC)

Moonrise 12:16AM

Moonset 3:06PM

Illumination 21%

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.

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7 Day Forecast for Marine Location Near Las Lomas, CA

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

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Fxus66 kmtr 252055 afdmtr area forecast discussion national weather service san francisco bay area 155 pm pdt Sun aug 25 2019 Synopsis High pressure will produce warmer temperatures through early next week, especially across inland areas where very warm temperatures are forecast. The marine layer will persist along the coast, along with light onshore flow, resulting in relatively mild temperatures near the ocean and bays. Moisture from tropical storm ivo may pass across our area from Tuesday afternoon into Wednesday, bringing increasing clouds and higher humidity. Cooler temperatures are forecast for the second half of next week. Discussion As of 1:55 pm pdt Sunday... The low clouds from earlier this morning have retreated back to the immediate coastline, providing mostly sunny skies for much of the san francisco bay area. Visible satellite shows the remaining marine stratus at locations such as point reyes, ocean beach in san francisco, half moon bay, and moss landing. Temperatures are generally running about 2 to 5 degrees f warmer than they were 24 hours ago, consistent with the expected trends by the time the afternoon wraps up. High temperatures along the coast will register in 60s 70s with inland locations warming the upper 80s to 90s. Some of the region's hottest locations such as pinnacles national park and extreme southern monterey county will approach and possibly exceed 100 degrees. A broad 594 dm ridge at 500 mb is largely responsible for the warm to hot weather across the region. With gradual warming at 850 mb forecast over the next 24 hours, surface temperatures on Monday afternoon will at least match and likely exceed today's readings by at least a few to several degrees. The marine layer is not expected to get any deeper than its present 1,000 ft depth with the ridge firmly overhead; therefore, any stratus coverage on Monday morning will likely be limited to the shorelines. Though high temperatures will be around 5-10 degrees above late august climatological normals both today and tomorrow, most population centers will benefit from appreciable overnight cooling that will prevent heat risks from going beyond the moderate category for interior communities. Locations at above 750-1000 ft elevation will be the isolated spots that can expect mild overnight lows in mid 60s to 70s. The much discussed now tropical depression ivo continues its northbound trajectory in the eastern pacific, presently situated about 500 miles wnw of the southern tip of the baja california peninsula. Further weakening is expected as it is forecast to become a remnant low later today. The leftover moisture from ivo will continue north over the next several days, and will parallel the california coast by late Tuesday and into Wednesday. The 12z models keep the bulk of moisture and best instability offshore;

however, the latest NAM does try to bring some of the higher rh values and mid-level instability to northern california on Wednesday afternoon. The present forecast would provide locations north of sonoma county the best potential for any scattered showers storms, but this is subject to change, particularly if the remnant moisture tracks east by 50 to 100 miles. The most likely impacts at this point for much of the san francisco bay area and central california coast will be increased cloudiness in the mid- levels as well as higher dewpoints at the surface. Temperatures are forecast to moderate by the end of the week with more seasonable highs expected as trough approaches the pacific northwest. The latest climate prediction center 6-10 day outlook does paint a large area with increased probabilities of above normal temperatures for the west coast for the beginning of september as the ridge begins to rebuild. Aviation As of 10:40 am pdt Sunday... For 18z tafs. Current satellite imagery shows stratus clearing to the coast.VFR conditions are expected for the rest of the day but patchy stratus and possible fog will return again tonight most areas. Light winds this morning to increase and turn onshore this afternoon 10-15 kt with occasional higher gusts possible. Vicinity of ksfo...VFR conditions through the evening. Patchy stratus to return overnight. W to NW winds around 10 kt this morning increasing to 15 kt this afternoon. Sfo bridge approach... Low clouds still clearing over the approach. Otherwise, similar to ksfo. Monterey bay terminals...VFR conditions with ifr CIGS potentially returning early this evening. Onshore winds this afternoon 10-15 kt. Marine As of 8:26 am pdt Sunday... Weakening high pressure over the eastern pacific will keep light winds over the coastal waters through early to mid next week. Sea breezes will develop in the afternoons and evenings over the san francisco bay to the delta. Southerly swell will increase to 2 to 3 feet today and persist through early next week as a tropical system west of the baja peninsula progresses northward. Additionally, light to moderate northwest swell will continue through the period. Mtr watches warnings advisories Tngt None. Public forecast: rowe aviation: sims marine: sims visit us at

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Weather Reporting Stations

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Stations	Dist	Age	Wind	Air Temp	Water Temp	Waves	Pressure	DewPt
ELXC1 - Elkhorn Slough Reserve, CA	3 mi	88 min	W 7	63°F			1015 hPa	60°F
MLSC1 - Moss Landing, South Harbor, CA	4 mi	34 min	W 8 G 22	60°F			1016 hPa (-0.7)	58°F
46092 - MBM1	16 mi	63 min	W 9.7	60°F	59°F		1015.6 hPa (-1.6)
46240 - Cabrillo Point, Monterey Bay, CA (158)	18 mi	43 min			60°F	2 ft
MEYC1	19 mi	97 min			64°F		1016.1 hPa
46114 - West Monterey Bay, CA	33 mi	43 min			62°F	4 ft
46042 - MONTEREY - 27NM West of Monterey Bay, CA	34 mi	83 min	9.7 G 14	61°F	63°F	4 ft	1015.6 hPa (-0.6)
46239 - Point Sur, CA (157)	40 mi	43 min			61°F	4 ft

Wind History for Monterey, CA

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Airport Reports

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Airport	Dist	Age	Wind kt	Visibility	Sky/Weather	Temp	DewPt	Humidity	Pressure
Watsonville, Watsonville Municipal Airport, CA	6 mi	80 min	SW 9	10.00 mi	Fair	72°F	57°F	61%	1015.6 hPa
Salinas, Salinas Municipal Airport, CA	16 mi	80 min	WNW 14	10.00 mi	Fair	70°F	57°F	66%	1016.3 hPa
Monterey Regional Airport, CA	19 mi	79 min	NW 10	10.00 mi	Fair	69°F	57°F	66%	1016.9 hPa
Hollister, CA, CA	19 mi	38 min	WSW 20 G 26	10.00 mi	Fair and Breezy	82°F	59°F	45%	1013.9 hPa

Link to 5 minute data for KWVI

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Tide / Current Tables for Elkhorn Slough railroad bridge, California

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Tide / Current Tables for Point Pinos, California Current

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Weather Map and Satellite Images

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GOES 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

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Wind Forecast for San Francisco/Monterey Bay Area, CA (19,4,5,8)

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Ground Weather Radar Station San Francisco Bay Area, CA

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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 numerious 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.