Wednesday, August21, 2019 L-36.com


Marine Weather and Tides
La Crescenta-Montrose, CA

Version 3.4
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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 6:17AMSunset 7:34PM Wednesday August 21, 2019 5:11 PM PDT (00:11 UTC) Moonrise 11:09PMMoonset 11:45AM Illumination 62% Phase: Waning Gibbous; Moon at 21 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- 208 Pm Pdt Wed Aug 21 2019
Tonight..W winds 10 kt, becoming se 5 to 10 kt after midnight. Wind waves 2 ft or less. W swell 2 to 4 ft at 7 seconds. Patchy dense fog with visibility 1 nm or less after midnight.
Thu..SE winds 5 to 10 kt, becoming S 10 kt in the afternoon. Wind waves 2 ft or less. W swell 2 to 3 ft at 7 seconds. Patchy dense fog with visibility 1 nm or less in the morning.
Thu night..S winds 5 to 10 kt, becoming se 10 to 15 kt after midnight. Wind waves 2 ft or less. Mixed swell W 3 ft at 8 seconds and sw 2 ft at 17 seconds.
Fri..SE winds 10 to 20, becoming S 10 kt in the afternoon. Wind waves 1 to 3 ft. Mixed swell W 2 to 3 ft at 9 seconds and sw 2 ft at 16 seconds.
Fri night..S winds 10 kt in the evening, becoming variable 10 kt or less. Wind waves 2 ft or less. Mixed swell W 2 to 3 ft at 9 seconds and sw 2 ft at 16 seconds.
Sat..SE winds 5 to 10 kt, becoming W in the afternoon. Wind waves 2 ft or less. Mixed swell W 2 ft at 9 seconds and S 2 ft at 15 seconds.
Sat night..W winds 10 kt in the evening, becoming variable 10 kt or less. Wind waves 2 ft or less. Mixed swell W 2 ft at 9 seconds and S 3 ft at 13 seconds.
Sun..W winds 10 to 15 kt. Wind waves 2 ft or less. S swell 4 to 5 ft.
Mon..W winds 5 to 10 kt. Wind waves 2 ft or less. S swell 3 to 4 ft.
PZZ600 208 Pm Pdt Wed Aug 21 2019
Synopsis for the southern california coast and santa barbara channel including the channel islands national marine sanctuary and national park..At 20z, or 1 pm pdt, a 1022 mb surface high was located 800 nm west of point conception, while a 1006 mb thermal low was over southwest arizona. The high will push closer to the coast tonight, then retreat back offshore Thursday through the weekend. Gale force winds and dangerous seas are likely from the central coast to san nicolas island tonight, with choppy seas elsewhere.


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 212129
afdlox
area forecast discussion
national weather service los angeles oxnard ca
229 pm pdt Wed aug 21 2019

Synopsis 21 144 pm.

A trough of low pressure will bring a cooling trend on Thursday through
the end of the week. There will be areas of night through morning
low clouds and fog for most coastal areas. High pressure will
build back in later this weekend with some warming, mainly
inland.

Short term (tdy-sat) 21 213 pm.

Temperatures warmed across the board today anywhere from a couple
degrees over yesterday to as many as 25 degrees at san luis
harbor avila beach where it has reached 91 so far this afternoon!
offshore trends and building high pressure aloft are the primary
factors generating these warm hot temperatures. Northerly
sundowner winds expected to return to SRN sb county later this
afternoon and evening with gusts to around 50 mph in the strongest
areas, mainly from refugio canyon west. Hi res models still
showing some winds reaching the eastern portion of the santa ynez
range but at much lower speeds. Warm temps and lower humidities
still expected which will create elevated fire concerns there.

Today should be the warmest day in most areas as onshore trends
and lowering heights cause temps to fall slightly Thursday. Still
near to above normal temps in most areas with just some patchy
marine layer clouds, mainly central coast and la county.

The cooling trend will continue into Friday as an eddy develops
near catalina and marine layer clouds become more widespread along
the coast. Some of those will push into the coastal valleys early
Friday morning.

Temperature trends will reverse Saturday as onshore flow weakens
and heights start to rebuild. Expecting most areas to warm up 2-5
degrees from Friday's levels, though more so across inland slo
county.

Long term (sun-wed) 21 227 pm.

A modest warming trend that will begin Saturday will continue into
early next week but moderate onshore gradients and little if any
northerly flow at lower levels will keep temps from going up too
much, mainly 90s in the valleys and 70s 80s closer to the coast.

Seasonably warm with highs generally 2-5 degrees above normal.

Will be closely monitoring the track and intensity of what is now
ts ivo (pronounced "eye-vo") off the coast of mexico. It's
expected to make a turn to the northwest and be near 30n 125w by
Monday afternoon. This would put it about 500nm southwest of la,
but likely not even a tropical depression by that time as it
drifts over cooler waters. Main impacts will likely be increasing
southerly swells and surf at south facing beaches. Models not
showing much in the way of moisture at lower levels but we should
at least see some mid and high clouds from it as early as Sunday
night.

Aviation 21 1803z.

At 17z, the marine layer was 700 feet deep at klax. The top of
the inversion was around 3300 feet with a temp of 27c.

Moderate confidence in similar timing and lifr flight cats at
ksmx tonight compared to last night. Ifr CIGS possible elsewhere
tonight into Thursday, 60 percent chance at klgb klax ksmo, 40
percent chance at koxr, 30 percent chance at kcma ksbp, 10 percent
chance at ksba. High confidence inVFR prevailing elsewhere.

Klax... Moderate confidence inVFR through 08z. 60 percent chance
of ifr cats beginning 10-14z Thursday, clearing 16-19z. Southeast
winds likely 10-17z, with a 20 percent chance of reaching 8 kt at
times. Stronger and more persistent southeast winds likely
Thursday night into Friday.

Kbur... High confidenceVFR with typical winds through Thursday.

Marine 21 202 pm.

High confidence in gale force winds and dangerous short period
dominant sea conditions through tonight over the outer waters
from the central coast to san nicolas island. Peak winds between
35 and 40 kt are likely this evening. These winds will lower to
small craft advisory (sca) for Thursday and Thursday night.

Moderate confidence for relatively light winds well below sca
Friday through at least the weekend.

High confidence in small craft advisory (sca) winds nearshore
along the central coast, and the western santa barbara channel
through much of tonight. All of these winds will generate choppy
or steep seas over all coastal waters this afternoon through
Thursday morning.

Morning southeast winds will be on the rise as well. The waters
from the east santa barbara channel and southward will see 5 to 10
kt Thursday morning. Local gusts to 15 kt through the san pedro
channel are possible. These winds will expand Friday morning to
all nearshore waters (including the central coast). Local gusts to
15 to 20 kt are possible around the channel islands, and through
the san pedro channel.

There is a possibility for a large southeast swell to impact the
waters Sunday through Tuesday from tropical storm ivo. A swell
from this direction would cause strong surges around harbors,
including avalon and long beach, as well as large breaking waves
near the coast. Stay tuned as details develop.

Beaches 21 202 pm.

Tropical storm ivo, currently about 600 miles south of the
southern tip of baja california, will generate a southeasterly
swell reaching california Sunday through Tuesday. The largest
swell should occur Sunday afternoon through Monday morning with a
period around 14 seconds. While the peak swell heights will most
likely fall between 3 and 5 feet, there is a 10 percent chance for
a range of 5 and 7 feet.

Dangerous rip currents and large breaking waves on rock jetties
are certain. Surf heights should reach 4 to 6 feet over south
facing beaches, but could approach the 7 foot high surf advisory
levels for los angeles county during the peak.

There is a small risk for impactful coastal flooding. The highest
tides will be in the early evening, and should reach a modest 5.5
to 6.0 feet. If the peak swell ends up 3 to 5 feet, flooding
impacts would be minor and mainly in the form of beach erosion. If
the swell height ends up closer to 7 feet, more impactful flooding
would be possible for the vulnerable areas like pebbly beach in
avalon and the long beach peninsula if unprotected.

Lox watches warnings advisories
Ca... Wind advisory in effect until 3 am pdt Thursday for zones
39-52. (see laxnpwlox).

Pz... Small craft advisory in effect until 9 pm pdt this evening
for zone 645. (see laxmwwlox).

Small craft advisory in effect until 3 am pdt Thursday for
zone 650. (see laxmwwlox).

Small craft advisory in effect until 3 pm pdt this afternoon
for zones 670-673-676. (see laxmwwlox).

Gale warning in effect until 3 am pdt Thursday for zones
670-673-676. (see laxmwwlox).

Hazard potential outlook (sat-wed)
Elevated surf and strong rip currents are possible at area beaches
early next week.

Public... Mw
aviation... Kittell
marine... Kittell
beaches... Kittell
synopsis... B
weather.Gov losangeles


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
ICAC1 - 9410840 - Santa Monica Pier 21 mi59 min W 8 G 8.9 69°F 70°F1008.8 hPa
46221 - Santa Monica Bay, CA (028) 34 mi45 min 71°F3 ft
BAXC1 34 mi53 min S 8.9 G 9.9
PSXC1 34 mi53 min N 1.9 G 4.1
PXAC1 34 mi53 min NNW 6 G 8
PFDC1 36 mi53 min SSW 6 G 7
PFXC1 36 mi53 min SW 8.9 G 9.9
OHBC1 - 9410660 - Los Angeles, CA 37 mi59 min 63°F1008.1 hPa
PRJC1 37 mi53 min WSW 17 G 19
AGXC1 38 mi53 min WSW 14 G 17
46256 39 mi41 min 66°F3 ft
46222 - San Pedro, CA (092) 44 mi48 min 72°F3 ft
46253 48 mi41 min 68°F3 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 mi18 minS 910.00 miFair89°F50°F26%1006.3 hPa
Los Angeles, Whiteman Airport, CA7 mi16 minESE 7 G 1410.00 miClear91°F48°F23%1009.1 hPa
Van Nuys, Van Nuys Airport, CA12 mi20 minESE 810.00 miFair93°F48°F22%1006.3 hPa
Los Angeles / USC Campus Downtown, CA17 mi19 minVar 410.00 miFair84°F59°F43%1007.2 hPa
El Monte, CA18 mi25 minWSW 610.00 miFair91°F51°F26%1007.4 hPa
Santa Monica, Santa Monica Municipal Airport, CA18 mi20 minWSW 810.00 miFair75°F61°F62%1008 hPa
Hawthorne, Hawthorne Municipal Airport, CA23 mi18 minW 810.00 miFair79°F62°F56%1007.8 hPa
Los Angeles, Los Angeles International Airport, CA23 mi18 minW 1110.00 miFair77°F64°F64%1007.9 hPa

Link to 5 minute data for KBUR

Wind History from BUR (wind in knots)
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Last 24hrS8S6--SE5------E3--CalmCalmCalm----W3CalmSE5E6SE7--S7S7S10S9
1 day agoS8S7S6------E4E4CalmCalmCalmS3CalmCalmS3CalmS4CalmCalmSE8----S8S8
2 days agoS7S7S5--SE6--E6----S4S5S3S4S3--CalmSE33Calm--S6S7
G15
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Tide / Current Tables for Santa Monica, California
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Santa Monica
Click for Map
Wed -- 12:53 AM PDT     3.89 feet High Tide
Wed -- 06:19 AM PDT     Sunrise
Wed -- 07:03 AM PDT     1.66 feet Low Tide
Wed -- 11:45 AM PDT     Moonset
Wed -- 01:45 PM PDT     4.51 feet High Tide
Wed -- 07:33 PM PDT     Sunset
Wed -- 08:22 PM PDT     2.06 feet Low Tide
Wed -- 11:10 PM PDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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3.83.93.73.32.82.21.81.71.82.22.83.54.14.44.54.33.83.32.72.32.12.12.32.7

Tide / Current Tables for Santa Monica, Municipal Pier, California
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Santa Monica
Click for Map
Wed -- 12:51 AM PDT     3.88 feet High Tide
Wed -- 06:19 AM PDT     Sunrise
Wed -- 06:59 AM PDT     1.70 feet Low Tide
Wed -- 11:45 AM PDT     Moonset
Wed -- 01:42 PM PDT     4.48 feet High Tide
Wed -- 07:33 PM PDT     Sunset
Wed -- 08:24 PM PDT     2.11 feet Low Tide
Wed -- 11:10 PM PDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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3.83.93.73.32.72.21.81.71.82.32.83.54.14.44.54.23.83.22.72.32.12.12.32.7

Weather Map and Satellite Images
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GOES 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 (20,4,5,8)
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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 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.