Sunday, January24, 2021
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Marine Weather and Tides
Garden Grove, CA

Version 3.4
NOTICE
8/26/2020 The 7 day forecast is taking about 5 seconds to load but it will eventually load. NOAA is still working on it.
8/18/2020 NOAA continues to have trouble. Wind guest will occasionally be left off graphs. I am working with NOAA to resolve the issue.
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 6:51AMSunset 5:16PM Sunday January 24, 2021 12:06 AM PST (08:06 UTC) Moonrise 2:41PMMoonset 4:28AM Illumination 83% Phase: Waxing Gibbous; Moon at 11 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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PZZ655 Inner Waters From Point Mugu To San Mateo Pt. Ca Including Santa Catalina And Anacapa Islands- 904 Pm Pst Sat Jan 23 2021
.small craft advisory in effect from Sunday afternoon through late Sunday night...
.gale watch in effect from late Sunday night through Tuesday evening...
Tonight..NW winds 5 to 10 kt. Wind waves 2 ft or less. W swell 3 to 4 ft at 13 seconds. Slight chance of tstms in the evening. Chance of showers.
Sun..Western portion, nw winds 5 to 10 kt becoming 15 to 25 kt in the afternoon. Elsewhere, N winds 5 to 10 kt becoming W 10 to 15 kt with local gusts to 20 kt in the afternoon. Combined seas 3 to 5 ft dominant period 13 seconds.
Sun night..W winds 15 to 25 kt with gusts to 30 kt. Strongest western portion. Combined seas 4 to 6 ft dominant period 8 seconds. Chance of rain in the evening, then rain likely.
Mon..Western portion, nw winds 35 to 45 kt. Elsewhere, nw winds 15 to 20 kt becoming 25 to 35 kt in the afternoon. Combined seas 8 to 11 ft dominant period 7 seconds, building to 10 to 13 ft dominant period 9 seconds in the afternoon. Chance of showers in the morning, then slight chance of showers.
Mon night..Western portion, nw winds 35 to 45 kt becoming 30 to 40 kt after midnight. Elsewhere, nw winds 25 to 35 kt becoming 20 to 25 kt after midnight. Combined seas 11 to 14 ft dominant period 9 seconds, subsiding to 8 to 10 ft dominant period 14 seconds after midnight. Slight chance of showers in the evening.
Tue..W to nw winds 20 to 30 kt with gusts to 35 kt, strongest western portion, becoming sw 10 to 15 kt late. Combined seas 5 to 7 ft. Slight chance of rain.
Wed..S winds 10 to 15 kt early, becoming se 10 to 20 kt with local gusts to 25 kt. Wind waves 2 to 4 ft. W swell 4 to 6 ft. Chance of rain.
PZZ600 904 Pm Pst Sat Jan 23 2021
Synopsis for the southern california coast and santa barbara channel including the channel islands national marine sanctuary and national park..At 04z, or 8 pm pst, a 1011 mb surface low was near the arizona-california border. A 1020 mb surface high was located over western oregon was extending west to a 1040 mb surface high about 900 nm west of eureka, ca. Winds will increase and seas will build across the coastal waters, with widespread gale force winds and choppy seas likely by Monday.


7 Day Forecast for Marine Location Near Garden Grove, CA
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location: 33.81, -117.92     debug


Area Discussion for - San Diego, CA
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FXUS66 KSGX 240515 AFDSGX

Area Forecast Discussion National Weather Service San Diego CA 915 PM PST Sat Jan 23 2021

SYNOPSIS. Snow will persist in the mountains through sunrise, where an additional 1 to 3 inches of snow is possible. A break in the precipitation is expected for most of Sunday, but it will be cool. By Sunday evening some showers will break out again and become numerous overnight into Monday. Monday will not be business as usual over Southern California with low-elevation mountain and foothill snow, strong and gusty winds, and gales over the coastal waters. A few thunderstorms are possible with brief heavy downpours and small hail. It will be quite cold on Monday too. Quiet, but continued cool weather is on tap for the midweek period, but a warmer, wetter storm system is possible by the end of the week.

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

. Evening update .

What a rainy and chilly day we had today! Most locations west of the mountains didn't get out the 50s today. Mountain areas mostly stayed in the 30s, and the lower deserts only hit the low 60s today. A handful of locations had daily record low maximum temperatures today, including Santa Ana, Ramona, Alpine, Idyllwild and San Jacinto. It will be even colder on Monday than today. We may see some more daily record low maximum temperatures!

A few light showers linger at lower elevations, and snow continues in the mountains above 4000 feet, albeit much lighter than earlier today. Precipitation totals with this storm ranged from 0.25 to 0.75 inch west of the mountains, and locally up to an inch in the mountains. The deserts picked up a few tenths of an inch as well.

High resolution models indicate a decent amount of wrap around moisture occurring in the mountains overnight as the low pressure system slowly pushes east, therefore the Winter Weather Advisory has been extended through 6 AM Sunday. 1 to 3 additional inches of snow could fall, mainly in the San Bernardino and Riverside mountains overnight. No other forecast changes are planned.

The next winter storm remains on track to move into the region late Sunday and continue through Tuesday morning. See the previous discussion below for more details on this active weather week.

. Previous Discussion .

Another colder storm will dive south along the CA Coast on Sunday. This one will reach SoCal Sunday night, but showers could begin breaking out during the evening, before becoming more numerous ahead of a strong cold front early Monday morning. A few thunderstorms are possible as well. Behind the front westerly winds will increase dramatically with gales over the coastal waters. Some of this wind energy could mix down over coastal areas on Monday which needs further examination, but expect wind products to be issued ahead of this system. Strong winds, freezing conditions, and falling snow in the mountains will make for treacherous travel conditions, even at lower elevations as the snow level falls to around 2500-3000 FT. A Winter Storm Watch is in effect beginning late tomorrow evening and will likely be upgraded to a Warning. Watch for additional wind products for coastal and desert areas coming to a forecast near you as well. Temperatures may be around 20F below average on Monday so calculating windchill values could be a fun exercise.

The Monday storm will not linger either as another large and slower moving trough develops over the NEPac. This will begin to spread heavy precipitation across northern/central CA on Wed and continue through Thu before slowly developing farther south into SoCal. This one has a pretty good tap on some Pacific moisture and has a greater potential for more widespread heavy rain and snowfall to greatly benefit reservoirs and snowpack over the northern half of the State. Timing of arrival is still uncertain for SoCal, but model ensemble and deterministic solutions favor Friday. It probably will not linger as long here, as over northern areas, but could still deposit more precipitation than the previous two systems. Stay tuned.

AVIATION. 240505Z . Coast/Valleys/Mountains . BKN-OVC025-035 with -SHRA decreasing in coverage through 14Z. Fog obscuring higher terrain. After 14Z Sunday . SCT-BKN030-050.

Deserts . BKN060-100 through tonight with isolated -SHRA. After 14Z Sunday . SCT-BKN080.

MARINE. Showers decreasing tonight. Dry on Sunday with light morning winds becoming westerly and increasing to 15-25 kt in the afternoon. A Small Craft Advisory is in effect from Noon Sunday to 2 AM Monday.

Winds become GALE FORCE Sunday night through Tuesday, increasing to 25-35 kts with gusts to 45 kts. Dangerous boating conditions with combined seas 10-15 feet across the Inner Waters, and up to 20 feet across the Outer Waters, heavy rain and poor visibilities. A Gale Warning is in effect from 2 AM Monday to 10 PM Tuesday.

Widespread moderate to heavy rain Sunday night through Monday morning.

BEACHES. A really, really poor beach day Monday with gale force winds 25-45 mph, big unsurfable blown-out surf, heavy rain and temperatures in the 50s. Best bet is to stay home and read surf blogs.

Tuesday will not be quite as windy (10-20 mph), but it will still be cold, and the surf will still be chaotic.

HYDROLOGY. A few light showers will linger through Sunday morning for lower elevations, with snow continuing in the mountains above 4000 feet. Sunday morning and afternoon will be mostly dry.

For Sunday night through Monday night, very cold air overspreading the region will keep expected precipitation in the form of snow at elevations above 3000 feet. This will limit the threat of any impactful debris flow activity. Also, the chance of thunderstorms will increase for coastal and valley areas, but they will likely contain small hail, so even though rainfall rates may be briefly heavy, runoff may be somewhat mitigated. The San Diego County mountains look to be favored for the highest precipitation totals, ranging between 1-2". Most urban areas in the valleys and foothills are likely to stay below 1", especially Orange County and the Inland Empire, with the deserts unlikely to pick up more than 0.25".

Another storm system has the potential to bring more significant precipitation to the region later in the week, but amounts of rainfall and timing are uncertain. This will be a much warmer storm. Runoff potential will be greatly increased due elevated atmospheric moisture availability, already moistened ground, melting snow, and higher snow levels. Interested parties should closely monitor the forecast over the next few days.

SKYWARN. Skywarn activation will not be needed for Sunday. Activation will likely be needed for Monday for rain and snow reports.

SGX WATCHES/WARNINGS/ADVISORIES. CA . Winter Weather Advisory until 6 AM PST Sunday for Riverside County Mountains-San Bernardino County Mountains-San Diego County Mountains.

Winter Storm Watch from Sunday evening through Monday evening for Riverside County Mountains-San Bernardino County Mountains-San Diego County Mountains.

PZ . Small Craft Advisory from noon Sunday to 2 AM PST Monday for Coastal Waters from San Mateo Point to the Mexican Border and out to 30 nm-Waters from San Mateo point to the Mexican Border Extending 30 to 60 nm out including San Clemente Island.

Gale Warning from 2 AM Monday to 10 PM PST Tuesday for Coastal Waters from San Mateo Point to the Mexican Border and out to 30 nm-Waters from San Mateo point to the Mexican Border Extending 30 to 60 nm out including San Clemente Island.



PUBLIC/HYDROLOGY . Connolly/10 AVIATION/MARINE/BEACHES . Moede


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
PRJC1 15 mi48 min NNW 6 G 6
PFXC1 16 mi48 min NNW 7 G 8 49°F
PSXC1 16 mi48 min NW 4.1 G 6
BAXC1 17 mi66 min NW 6 G 7
46256 17 mi40 min 59°F3 ft
AGXC1 18 mi60 min NW 6 G 7 48°F 1010.9 hPa
PFDC1 18 mi60 min W 5.1 G 6
PXAC1 19 mi60 min NW 2.9 G 5.1
OHBC1 - 9410660 - Los Angeles, CA 20 mi48 min 60°F1013.3 hPa
46253 21 mi40 min 59°F4 ft
46222 - San Pedro, CA (092) 25 mi75 min 60°F4 ft
ICAC1 - 9410840 - Santa Monica Pier 34 mi48 min N 4.1 G 6 49°F 59°F1013.2 hPa
46221 - Santa Monica Bay, CA (028) 38 mi40 min 59°F3 ft
46268 38 mi66 min 50°F 59°F3 ft

Wind History for Los Angeles Pier J, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Fullerton, Fullerton Municipal Airport, CA5 mi73 minN 08.00 miFair47°F43°F86%1012.4 hPa
John Wayne-Orange County Airport, CA9 mi73 minENE 310.00 miMostly Cloudy49°F43°F80%1012.5 hPa
Long Beach, Long Beach Airport, CA12 mi73 minN 07.00 miMostly Cloudy46°F45°F96%1012.7 hPa
Corona Airport, CA18 mi70 minNW 310.00 miLight Rain0°F0°F%1012.9 hPa
Chino, Chino Airport, CA19 mi73 minNNE 39.00 miLight Rain48°F42°F80%1012.6 hPa
Hawthorne, Hawthorne Municipal Airport, CA24 mi73 minN 010.00 miMostly Cloudy47°F43°F86%1012.9 hPa
Ontario International Airport, CA24 mi73 minN 08.00 miLight Rain45°F42°F90%1012.3 hPa
Los Angeles / USC Campus Downtown, CA24 mi74 minN 010.00 miOvercast48°F44°F86%1012.6 hPa

Link to 5 minute data for KFUL

Wind History from FUL (wind in knots)
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Last 24hrSW33CalmCalmNE3E4E4E5CalmSE6CalmE5E4E5SE4SE6SE3W44E5E3CalmCalmCalm
1 day agoE4CalmCalmCalmE7E8E7E6E3SE54S9S10SW11
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SW75SW6SW3SW33CalmSW3
2 days agoE3CalmCalmCalmCalmCalmCalmE5E4SE3CalmSW6SW7S7SW7S95S3CalmCalmCalmCalmCalmCalm

Tide / Current Tables for Los Patos (highway bridge), California
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Los Patos (highway bridge)
Click for Map
Sun -- 12:42 AM PST     1.53 feet Low Tide
Sun -- 03:28 AM PST     Moonset
Sun -- 06:53 AM PST     Sunrise
Sun -- 06:58 AM PST     4.41 feet High Tide
Sun -- 01:41 PM PST     Moonrise
Sun -- 02:42 PM PST     -0.03 feet Low Tide
Sun -- 05:15 PM PST     Sunset
Sun -- 09:10 PM PST     2.81 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.61.51.82.32.93.74.24.44.23.732.11.20.50.1-00.30.81.52.22.62.82.72.3

Tide / Current Tables for Santa Ana River entrance (inside), California
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Santa Ana River entrance (inside)
Click for Map
Sun -- 01:17 AM PST     0.51 feet Low Tide
Sun -- 03:28 AM PST     Moonset
Sun -- 06:21 AM PST     2.87 feet High Tide
Sun -- 06:52 AM PST     Sunrise
Sun -- 01:41 PM PST     Moonrise
Sun -- 03:17 PM PST     -0.01 feet Low Tide
Sun -- 05:15 PM PST     Sunset
Sun -- 08:33 PM PST     1.83 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.70.50.611.72.42.82.82.72.31.91.40.90.40.1-00.10.511.51.81.81.61.3

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.
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Ground Weather Radar Station




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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.