Tuesday, December10, 2019
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Marine Weather and Tides
San Jacinto, 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

Sunrise 6:40AMSunset 4:40PM Tuesday December 10, 2019 8:19 AM PST (16:19 UTC) Moonrise 4:50PMMoonset 6:03AM Illumination 98% Phase: Waxing Gibbous; Moon at 14 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
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PZZ750 Coastal Waters From San Mateo Point To The Mexican Border And Out To 30 Nm- 141 Am Pst Tue Dec 10 2019
Today..Wind variable less than 10 kt...becoming W to 10 kt in the afternoon. Wind waves 2 ft or less. SWell W 2 to 3 ft at 9 seconds.
Tonight..Wind variable less than 10 kt. Wind waves 2 ft or less. SWell W 1 to 2 ft at 6 seconds.
Wed..Wind nw 10 kt. Gusts to 15 kt in the afternoon. Wind waves 2 ft or less. SWell W 1 to 3 ft at 14 seconds.
Wed night..Wind nw to 10 kt in the evening... Becoming variable less than 10 kt. Wind waves 2 ft or less. SWell W 2 to 3 ft at 13 seconds.
Thu..Wind variable less than 10 kt...becoming nw 10 kt in the afternoon. Wind waves 2 ft or less. SWell W 3 to 4 ft at 13 seconds.
Thu night..Wind variable less than 10 kt. Wind waves 2 ft or less. SWell W 3 to 4 ft.
Fri..Wind variable less than 10 kt. Wind waves 2 ft or less. SWell W 3 to 5 ft.
Fri night..Wind variable less than 10 kt. Wind waves 2 ft or less. SWell W 3 to 5 ft.
Sat..Wind W to 10 kt...becoming 10 to 15 kt in the afternoon. Wind waves 2 ft or less...becoming 3 ft in the afternoon. SWell W 3 to 6 ft.
Sat night..Wind nw 10 to 20 kt. Wind waves 4 ft. SWell W 4 to 7 ft.
PZZ700 141 Am Pst Tue Dec 10 2019
Synopsis for the far southern california coast.. At 2 am, a 1020 high was over northern baja and a 1018 low was over northern arizona. Weak to moderate onshore flow will continue through Friday. Northwest winds may strengthen this weekend with gusts of 20-25 kt, strongest in the outer coastal waters. Combined swell of 6 to 9 ft expected Wednesday through Friday.


7 Day Forecast for Marine Location Near San Jacinto, CA
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location: 33.81, -117     debug


Area Discussion for - San Diego, CA
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FXUS66 KSGX 101012 AFDSGX

Area Forecast Discussion National Weather Service San Diego CA 212 AM PST Tue Dec 10 2019

SYNOPSIS. Building high pressure over the West will bring dry, mild weather this week. Thursday and Friday will be the warmest days. A weak trough will move over Southern California this weekend for minor cooling along with winds in the mountains and deserts. Offshore winds are expected Monday.

DISCUSSION. FOR EXTREME SOUTHWESTERN CALIFORNIA INCLUDING ORANGE . SAN DIEGO . WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO COUNTIES .

A few low clouds and a few high clouds are appearing along the coast this morning. Expect more of the high clouds across the region today, but patches of coastal low clouds are also expected into Wednesday. Weak high pressure aloft will bring slightly warmer days today and Wednesday with daytime temperatures near average. A weak shortwave moving through the high pressure ridge draws in the high clouds today into Wednesday. Weak offshore flow develops behind that wave just as the high pressure ridge strengthens a bit for Thursday and Friday. Isolated pockets of offshore winds could gust over 30 mph early Thursday mainly below Cajon Pass. Temperatures will head into the 70s for most lower elevations those days. Skies will be mostly clear with occasional high cloud highlights. A strong jet stream to the north will sag southward into California Saturday into Sunday. That will increase onshore flow and some humidity for SoCal. There are still some vague hints that some showers could develop primarily in San Diego County late Saturday, but recent guidance has backed off the idea rendering the chance so slim that we can't bring ourselves to forecast it. There will be some clouds going against the mountains and some strong winds for mountains and deserts. Westerly wind gusts could top 50 mph for those favored lee slopes heading into the desert. That wind might be the most hazardous thing in our forecast today through next Monday. The weekend will be cooler under that stronger onshore flow, with temps dipping below average. Late Sunday and especially Monday the winds turn offshore again, this time stronger. Way too early guesses put top gusts in the foothills at 45 mph Monday morning. That will usher in cool and dry air from the interior West, so temperatures will have to wait a little longer to rebound.

AVIATION. 101000Z . Local SCT-BKN clouds with bases around 1000 ft MSL are possible near the coast 09Z-16Z Tue. In the valleys, local ground fog is possible 09Z-16Z Tue, with local vis below 3 miles. Mostly clear with unrestricted vis after 16Z. Low clouds could develop along the coast and move a few miles inland after 06Z Wed.

MARINE. No hazardous marine weather is expected through Thursday. West- northwest winds will pick up over the outer coastal waters Saturday, gusts of 20 to 25 kt possible. Strong winds plus a combined swell of 6 to 9 ft, that begins to build on Friday, could create hazardous boating conditions.

BEACHES. Another large, long period west-northwest swell from 290 degrees is forecast to arrive this weekend, bringing another round of elevated to high surf and strong rip currents.

SKYWARN. Skywarn activation is not requested. However weather spotters are encouraged to report significant weather conditions.

SGX WATCHES/WARNINGS/ADVISORIES. CA . NONE. PZ . NONE.



PUBLIC . MM AVIATION/MARINE/BEACHES . CO


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
46224 - Oceanside Offshore, CA (045) 50 mi20 min 63°F3 ft

Wind History for Los Angeles Pier J, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Riverside / March Air Force Base, CA15 mi82 minN 010.00 miFair35°F34°F100%1023 hPa
San Bernardino Intl. Airport, CA24 mi35 minN 010.00 miMostly Cloudy46°F39°F76%1023.4 hPa

Link to 5 minute data for KRIV

Wind History from RIV (wind in knots)
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Last 24hr--Calm----NW11W9W14W10W5NW3CalmS4CalmCalm--CalmCalmCalmCalmCalmCalmCalmCalmSE3
1 day agoCalmCalmNW5SW3W5NW5W7NW9W4CalmNW4NW8CalmCalmCalmNW3NW5CalmW3SW3S3S4SE3Calm
2 days agoN4CalmCalmSE4SE4SE6SE4SE5SE7S5SE5SE3SE5SE6SE5SE6SE5SE5SE6SE4SE3SE3CalmCalm

Tide / Current Tables for San Clemente, California
   EDIT   Weekend mode (on/off)   (on/off)   Help   One Week of Data
San Clemente
Click for Map
Tue -- 01:03 AM PST     1.47 feet Low Tide
Tue -- 05:05 AM PST     Moonset
Tue -- 06:43 AM PST     Sunrise
Tue -- 07:19 AM PST     5.94 feet High Tide
Tue -- 02:23 PM PST     -0.48 feet Low Tide
Tue -- 03:53 PM PST     Moonrise
Tue -- 04:42 PM PST     Sunset
Tue -- 08:33 PM PST     3.82 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.71.51.72.43.44.55.45.95.85.13.92.51.20.1-0.4-0.40.31.32.33.23.73.83.42.8

Tide / Current Tables for Newport Bay Entrance, Corona del Mar, California
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Newport Bay Entrance
Click for Map
Tue -- 12:57 AM PST     1.69 feet Low Tide
Tue -- 05:06 AM PST     Moonset
Tue -- 06:44 AM PST     Sunrise
Tue -- 07:18 AM PST     6.00 feet High Tide
Tue -- 02:22 PM PST     -0.41 feet Low Tide
Tue -- 03:54 PM PST     Moonrise
Tue -- 04:43 PM PST     Sunset
Tue -- 08:40 PM PST     3.77 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.91.71.92.63.64.65.565.85.13.92.51.20.1-0.4-0.30.31.22.33.13.73.73.42.8

Weather Map
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wmap_P
GEOS Local Image of Southwest    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 Diego, CA (11,2,3,4)
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Ground Weather Radar Station Santa Ana Mtns, CA
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weather_mapweather_map weather_map

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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.