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Marine Weather and Tides Las Lomas, CA Version 3.4

NOTICE 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. 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 7:10AM

Sunset 4:52PM

Saturday December 14, 2019 7:11 AM PST (15:11 UTC)

Moonrise 7:33PM

Moonset 9:32AM

Illumination 91%

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 141129 AFDMTR

Area Forecast Discussion National Weather Service San Francisco Bay Area 329 AM PST Sat Dec 14 2019

SYNOPSIS. Another frontal system will drop southward over the region late in the day bringing a renewed chance for light precipitation. Cooler and drier condition are then forecast from Sunday into early next week. Unsettled weather conditions appear to return for the latter half of next week and will potentially continue into next weekend.

DISCUSSION. as of 03:04 AM PST Saturday . A moist zonal flow persists over the region this morning in wake of yesterday's frontal passage. This has allowed for light rain to linger over portions of the region early this morning, mainly from the San Francisco Peninsula southward across the Central Coast. Rainfall amounts have been light overnight however, generally only adding up to a few hundredths of an inch. Precipitation has diminished over the North Bay where breaks in the cloud cover are being observed. This has allowed temperatures in that region to cool in to the upper 40s while 50s are being reported elsewhere across the region.

A deeper mid/upper level low is then forecast to drop into northern California late in the day and will drive a secondary frontal boundary across the region. Rainfall with this system will also be minimal overall with the best chances for measurable rainfall from San Francisco southward through tonight. Thus, much of the region will remain dry throughout the day with temperatures generally warming into the 50s. In wake of this system, a colder and drier air mass will advect across the region and result in clearing sky conditions by Sunday. Thus, look for much cooler overnight conditions with more widespread 30s likely across the interior valleys Sunday morning and more so by Monday morning when lower 40s to even upper 30s will be possible near the coast. These temperatures will likely be some of the coldest the region has seen so far this month. Dry and seasonably cool conditions will then persist into early next week as a ridge of high pressure builds over the region. This will not result in much warming trend however with daytime highs generally in the 50s.

The forecast models are in generally decent agreement with unsettled weather conditions returning to the region by the middle of next week as a mid/upper level trough and potentially a cut-off low approach from the west. Meanwhile, a much deeper plume of moisture will advect inland over far northern California by the latter half of next week. Thus, while details remain limited at this time, there will be the potential for periods of rain late in the week and potentially into next weekend. Stay tuned as this pattern may result in some travel issues across the state leading up to Christmas.

AVIATION. as of 3:30 AM PST Saturday . Low level moisture remains over the area this morning but an increasing west wind will help to raise cigs after 18Z. There will still be some clouds in the 4000-5000 foot range until the upper trough passes late Saturday night.

Vicinity of KSFO . MVFR cigs with bases around 2500 ft. Increasing west wind will help clear out the low clouds leaving a layer at 4000-5000 ft. This will linger through most of the day until the upper trough moves through tonight. West winds 10-15 kt gusting to 20 kt after 21Z.

SFO Bridge Approach . Similar to KSFO.

Monterey Bay Terminals . Mostly IFR conditions improving to MVFR after 15-16Z. Cigs rising to VFR range after 19Z. West to northwest winds 5-10 kt increasing slightly during the day.

MARINE. as of 03:23 AM PST Saturday . Northwest winds will increase today through Sunday as an upper level trough moves into northern California. Winds will switch back to the southeast Monday as the next weather system approaches. A long-period northwest swell will gradually decrease over the weekend.

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



PUBLIC FORECAST: RGass AVIATION: W Pi MARINE: W Pi

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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	86 min	NNE 2.9	52°F			1019 hPa	51°F
MLSC1 - Moss Landing, South Harbor, CA	4 mi	70 min	WNW 12 G 35	55°F			1019.4 hPa	48°F
46092 - MBM1	16 mi	114 min	NNW 16	56°F	57°F		1017.9 hPa (-0.0)
46240 - Cabrillo Point, Monterey Bay, CA (158)	18 mi	71 min			57°F	4 ft
MEYC1	19 mi	95 min			58°F		1019.2 hPa
46114 - West Monterey Bay, CA	33 mi	71 min			57°F	11 ft
46042 - MONTEREY - 27NM West of Monterey Bay, CA	34 mi	41 min	NW 14 G 19	55°F	57°F		1019.8 hPa	50°F
46239 - Point Sur, CA (157)	40 mi	71 min			57°F	13 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	78 min	NW 4	1.00 mi	Fog/Mist	51°F	50°F	96%	1018.7 hPa
Salinas, Salinas Municipal Airport, CA	16 mi	78 min	W 8	10.00 mi	Fair	53°F	50°F	89%	1019.6 hPa
Monterey Regional Airport, CA	19 mi	77 min	W 4	10.00 mi	Overcast	56°F	48°F	77%	1020.6 hPa
Hollister, CA, CA	19 mi	76 min	NW 9	10.00 mi	A Few Clouds	52°F	48°F	88%	1019 hPa

Link to 5 minute data for KWVI

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

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Tide / Current Tables for Point Pinos, California Current

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Weather Map

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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

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Wind Forecast for San Francisco/Monterey Bay Area, CA (10,2,3,4)

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Ground Weather Radar Station San Francisco Bay Area, CA

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