Saturday, July4, 2020
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Marine Weather and Tides
La Crescenta-Montrose, 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 5:45AMSunset 8:09PM Saturday July 4, 2020 3:53 AM PDT (10:53 UTC) Moonrise 8:06PMMoonset 5:09AM Illumination 99% 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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PZZ655 Inner Waters From Point Mugu To San Mateo Pt. Ca Including Santa Catalina And Anacapa Islands- 339 Am Pdt Sat Jul 4 2020
Today..Winds variable 10 kt or less, becoming W 10 to 15 kt in the afternoon. Wind waves 2 ft or less. S swell 3 to 4 ft at 18 seconds. Patchy fog in the morning.
Tonight..W winds 10 to 15 kt in the evening, becoming variable 10 kt or less. Wind waves 2 ft or less. Mixed swell W 2 to 3 ft at 6 seconds and S 3 to 4 ft at 17 seconds. Patchy fog after midnight.
Sun..Winds variable 10 kt or less, becoming W 10 to 15 kt in the afternoon. Wind waves 2 ft or less. Mixed swell W 2 to 3 ft at 7 seconds and S 3 to 4 ft at 16 seconds. Patchy fog in the morning.
Sun night..W winds 10 to 15 kt, becoming 5 to 10 kt after midnight. Wind waves 2 ft or less. Mixed swell W 2 to 3 ft at 8 seconds and S 3 to 4 ft at 15 seconds. Patchy fog after midnight.
Mon..Winds variable 10 kt or less, becoming W 10 to 15 kt in the afternoon. Wind waves 2 ft or less. Mixed swell W 2 to 4 ft at 9 seconds and S 2 to 3 ft at 15 seconds. Patchy fog in the morning.
Mon night..W winds 10 to 15 kt in the evening, becoming 5 to 10 kt late. Wind waves 2 ft or less. Mixed swell W swell 3 to 4 ft at 10 seconds and S 2 ft at 15 seconds. Patchy fog after midnight.
Tue..W winds 5 to 10 kt early, becoming 10 to 15 kt. Wind waves 2 ft or less. Mixed swell W 2 to 4 ft and S 2 ft. Patchy fog.
Wed..W winds 10 to 15 kt. Wind waves 2 ft. Mixed swell W 2 to 3 ft and S 2 ft. Patchy fog.
PZZ600 339 Am Pdt Sat Jul 4 2020
Synopsis for the southern california coast and santa barbara channel including the channel islands national marine sanctuary and national park..At 09z, or 2 am pdt, a 1027 mb high was located 700 nm west of eureka. A 1006 mb thermal low was centered near las vegas. The high will build toward the west coast, causing an extended period of strong nw winds across the northern and outer coastal waters into next week, along with large steep seas.


7 Day Forecast for Marine Location Near La Crescenta-Montrose, CA
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location: 34.26, -118.28     debug


Area Discussion for - Los Angeles/Oxnard, CA
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FXUS66 KLOX 041024 AFDLOX

Area Forecast Discussion National Weather Service Los Angeles/Oxnard CA 324 AM PDT Sat Jul 4 2020

SYNOPSIS. 04/323 AM.

A warming trend will continue through the weekend as high pressure builds aloft. Significant warming is expected inland, with highs 3-8 degrees above normal through Monday, then some cooling by midweek. Marine layer clouds will be limited to a few coastal areas through Monday, with more widespread low clouds for the coast and some coastal valleys by mid week. Gusty Sundowner winds expected Sunday evening into early Monday.

SHORT TERM (TDY-MON). 04/323 AM.

Synoptically, a 595 DM high will be over southern AZ/NM with the high expanding to 591 DM across much of the Southwest into the Four Corners Region. The high will shift westward and center over the southern half of California out the Ern Pac to the west, and east to NM by Sunday. The upper ridge will begin to breakdown as a persistent trough to the northwest digs farther south into Central California.

For today, expect significant warming across inland locations while coastal areas remain fairly mild. The marine layer was around 700 ft this morning with patchy low clouds and fog across the Central Coast, as well as a slug of stratus off the Ventura Coast to southern SBA County. Except for the Central Coast, low clouds should remain off the coast this morning, with a slight chance for stratus to develop across the L.A. County Coast near sunrise. If low clouds do develop, they will be short lived with sunny skies.

High temps will trend up 3-8 degrees in most areas south of Point Conception, and between 8-18 degrees warmer across SLO and SBA Counties. Highest trends will be in the SLO County coastal foothills and SLO interior Valleys. The combination of strong high pressure aloft and somewhat weaker onshore flow over the next few days will allow high temps to reach the lower 100s in the Antelope Valley and SLO Valleys including the Salinas River Valley where Paso Robles should reach around 101 both today and Sunday. Most valleys will range between the upper 80s to upper 90s through Sunday, while a relatively shallow marine layer will keep the coastal areas mild with highs ranging between the lower 70s to mid 80s inland. Weaker onshore flow should keep the usual breezy Hwy 14 Corridor from the Santa Clarita Valley to the Antelope Valley with SW to W winds 15 to 25 mph with local gusts to 35 mph across Lake Palmdale and adjacent foothills late in the afternoon and early evening. There will be some weak Sundowner winds across the western portion of the SBA South Coast, mainly west of Refugio Saturday evening, but the SBA-SMX gradient will strengthen to around -4.2MB Sunday evening which should bring some gusty NW to N winds 20-35 mph with gusts up to 45 mph between Refugio and Gaviota through the overnight hours. A Wind Advisory is likely going to be needed for that time period.

There will be little change with the forecast on Sunday, with only patchy low clouds possible once again across a few coastal areas, with the best chance across the L.A. Coast. There could be a few patchy low clouds across the Central Coast, but some weak offshore winds from the San Lucia's should keep skies mostly clear through Monday morning.

By Monday, the upper ridge will breakdown as a persistent trough over the PAC NW will dig south into Central California. The main affect will be a 3-6 degree cooling change across most areas, with little relief across the L.A. County Valleys as highs will remain in the lower to mid 90s with the Antelope Valley still in the upper 90s to around 101 degrees. Not anticipating any high temperature records through the weekend for inland areas.

LONG TERM (TUE-FRI). 04/323 AM.

The ECMWF and GFS continue to remain in generally good agreement for large scale features through much of the extended period, except for Friday where the EC is a bit more bullish with ridging. Upper level troffiness will move back into the region for Tue through Wed, with H5 heights lowering to 586-589 dm or so.

The marine inversion will rebound some Tue, with a deeper marine layer likely up to 1500-2000 ft deep for Wed/Thu as the trough moves closer to the region. Night through morning low clouds and fog should affect portions of the Central coast, as well as the the coast of VTU/L.A. Counties, then extend into the San Gabriel and Santa Ynez Valleys by Wed/Thu nights. Otherwise, mostly clear skies will continue.

Temps are expected to be near normal to slightly below normal Tue thru Thu, then warm to slightly above normal Fri. Highs in the warmest vlys and lower mtns should reach the 80s to lower 90s Tue thru Thu, and in the 90s on Fri except near 100 in the Antelope Vly.

AVIATION. 04/0007Z.

At 2300Z at KLAX . The inversion was 1200 feet deep. The top of the inversion was around 1600 feet with a temperature of 26 degrees Celsius.

Overall . Low confidence in coastal TAFs and high confidence for the valleys and desert. IFR/LIFR conditions may return to coastal sites, south of KSBP, but there is a 40% chance that any site may remain clear. Otherwise, late onset is expected of any cigs that do occur, but with low certainty in timing. High confidence in VFR conditions for the valleys and deserts, with gusty SW winds for KPMD and KWJF.

KLAX . Low to moderate confidence in the 00Z TAF. IFR conditions may return from 08Z to 17Z, but there is a 40% chance the cigs are periodic or that conditions remain VFR. There will not be any east winds greater than 8 kts.

KBUR . High confidence in the 00Z TAF with VFR conditions through the period.

MARINE. 03/744 PM.

Across the outer waters . Winds will increase to Small Craft Advisory (SCA) level this afternoon in the northern outer waters, then the winds will increase across all of the outer waters Saturday afternoon and will likely reach gale level Saturday night. Winds will diminish to SCA level Monday morning and will remain SCA level through at least Wednesday.

Across the nearshore waters of the Central Coast . There is a forty percent chance of winds increasing to SCA level Saturday afternoon and a seventy percent chance on Sunday afternoon. The winds will then likely continue at advisory level through at least Wednesday, primarily during the afternoon and evening hours.

Across the inner waters south of Point Conception . From Point Conception to Point Mugu, winds will likely increase to SCA level during the afternoon and evening hours of Sunday through Wednesday. Otherwise and elsewhere, conditions will remain below SCA level.

Patchy fog, locally dense with visibility under one mile, will continue through the week. The poorest visibility and most widely spread conditions will occur in the overnight and morning hours.

A long period south swell will affect the area into early next week, creating large waves nearshore and hazards to drifting boaters.

LOX WATCHES/WARNINGS/ADVISORIES. CA . High Surf Advisory in effect until noon PDT Monday for zones 34-35-40-41-87. (See LAXCFWLOX). PZ . Small Craft Advisory in effect from 3 PM this afternoon to 3 AM PDT Tuesday for zones 645-676. (See LAXMWWLOX). Small Craft Advisory in effect until 9 PM PDT this evening for zones 670-673. (See LAXMWWLOX). Gale Warning in effect from 9 PM this evening to 3 AM PDT Tuesday for zones 670-673. (See LAXMWWLOX).

.HAZARD POTENTIAL OUTLOOK (MON-FRI).

Gusty winds are likely Monday over the Antelope Valley and southern Santa Barbara County which may lead to hazardous driving conditions. Elevated surf will affect south facing beaches into Monday morning. Large high tides may result in tidal overflow in vulnerable low lying areas. Strong rip currents are likely Sunday night and Monday.



PUBLIC . Kaplan AVIATION . Smith MARINE . Kj/Smith SYNOPSIS . Kaplan

weather.gov/losangeles


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
ICAC1 - 9410840 - Santa Monica Pier 21 mi53 min E 5.1 G 6 64°F 67°F1015.1 hPa (+0.0)
46221 - Santa Monica Bay, CA (028) 34 mi30 min 65°F4 ft
BAXC1 34 mi101 min ENE 2.9 G 5.1
PSXC1 34 mi53 min NE 2.9 G 4.1
PXAC1 34 mi101 min ENE 2.9 G 2.9
PFDC1 36 mi107 min ENE 4.1 G 4.1
PFXC1 36 mi53 min S 1.9 G 2.9
OHBC1 - 9410660 - Los Angeles, CA 37 mi53 min 65°F1014.9 hPa (-0.4)
PRJC1 37 mi53 min Calm G 1.9
AGXC1 38 mi101 min NNW 5.1 G 5.1
46256 39 mi57 min 65°F5 ft
46222 - San Pedro, CA (092) 44 mi33 min 67°F3 ft
46253 48 mi57 min 67°F4 ft

Wind History for Santa Monica, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Burbank - Bob Hope Airport, CA6 mi60 minESE 510.00 miFair66°F55°F70%1013.2 hPa
Van Nuys, Van Nuys Airport, CA12 mi62 minSE 310.00 miFair69°F48°F47%1013.4 hPa
Los Angeles / USC Campus Downtown, CA17 mi61 minN 010.00 miFair64°F57°F81%1014.2 hPa
Santa Monica, Santa Monica Municipal Airport, CA18 mi62 minN 010.00 miFair62°F57°F86%1014.5 hPa
Hawthorne, Hawthorne Municipal Airport, CA23 mi60 minN 010.00 miFair65°F57°F76%1014.6 hPa
Los Angeles, Los Angeles International Airport, CA23 mi60 minN 010.00 miFair65°F55°F73%1014.4 hPa

Link to 5 minute data for KBUR

Wind History from BUR (wind in knots)
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Last 24hrCalmCalmCalmCalmCalmCalmS34SE8S9S11S7S8S10S7S5SE5S4S3CalmSE3CalmSE4E5
1 day agoS4S5S43SE5S4CalmS7S85S4S8S7S9S9S10S6S6S4S3S3SE3CalmCalm
2 days agoSE5E4S5SE6SE7E6E6S8SE85--E3S10S11S9S9S7S7S5S5S5S4CalmSE6

Tide / Current Tables for Santa Monica, California
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Santa Monica
Click for Map
Sat -- 03:56 AM PDT     -1.25 feet Low Tide
Sat -- 05:10 AM PDT     Moonset
Sat -- 05:48 AM PDT     Sunrise
Sat -- 10:28 AM PDT     3.89 feet High Tide
Sat -- 02:58 PM PDT     2.16 feet Low Tide
Sat -- 08:06 PM PDT     Moonrise
Sat -- 08:08 PM PDT     Sunset
Sat -- 09:18 PM PDT     6.71 feet High Tide
Sat -- 09:44 PM PDT     Full Moon
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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3.31.50-0.9-1.2-0.901.22.43.43.83.83.42.92.42.22.43.14.15.26.26.76.65.8

Tide / Current Tables for Santa Monica, Municipal Pier, California
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Santa Monica
Click for Map
Sat -- 03:58 AM PDT     -1.26 feet Low Tide
Sat -- 05:10 AM PDT     Moonset
Sat -- 05:48 AM PDT     Sunrise
Sat -- 10:31 AM PDT     3.87 feet High Tide
Sat -- 03:03 PM PDT     2.17 feet Low Tide
Sat -- 08:06 PM PDT     Moonrise
Sat -- 08:08 PM PDT     Sunset
Sat -- 09:18 PM PDT     6.67 feet High Tide
Sat -- 09:44 PM PDT     Full Moon
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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3.31.60.1-0.9-1.3-0.9-01.22.43.33.83.83.52.92.42.22.434.15.26.16.66.55.7

Weather Map
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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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Wind Forecast for Los Angeles/Oxnard, CA (6,6,7,8)
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Ground Weather Radar Station Santa Ana Mtns, 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 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.