Saturday, February24, 2018 L-36.com


Marine Weather and Tides
Marina del Rey, CA

Version 3.4
What's New / NOTES
6/25/2017 - NOAA is having a major issue that impact the 7 day forecast load times. Many users are reporting problems. The issue has been reported.
5/23/2017 - Worked with NOAA again to speed up the 7 day forecast load times. Thanks to them for being responsive.
5/19/2016 - There were issues with the 3 day airport observation history. I switched to another data source. Let me know if you see any issues with the data feeds.

Sunrise 6:25AMSunset 5:47PM Saturday February 24, 2018 2:02 AM PST (10:02 UTC) Moonrise 1:24PMMoonset 2:45AM Illumination 67% Phase: Waxing Gibbous; Moon at 9 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- 249 Pm Pst Fri Feb 23 2018
.small craft advisory in effect until 9 pm pst this evening...
Tonight..NW winds 15 to 25 kt with gusts to 30 kt, becoming N 5 to 10 kt after midnight. Combined seas 6 to 8 ft dominant period 9 seconds, subsiding to 4 to 6 ft dominant period 16 seconds after midnight.
Sat..N winds 5 to 10 kt, becoming nw 10 to 15 kt in the afternoon. Wind waves 1 to 3 ft. W swell 3 to 4 ft at 15 seconds.
Sat night..W winds 15 to 20 kt with gusts to 25 kt, becoming nw 10 to 15 kt after midnight. Strongest western portion. Wind waves 2 to 4 ft. W swell 3 to 4 ft at 12 seconds.
Sun..NE winds 10 to 15 kt. Wind waves 2 ft or less. W swell 3 to 4 ft at 13 seconds.
Sun night..NW winds 10 to 15 kt, becoming 5 to 10 kt after midnight. Wind waves 1 to 3 ft. W swell 3 ft at 15 seconds.
Mon..Western portion, winds variable 10 kt or less becoming W 25 to 30 kt in the afternoon. Elsewhere, winds variable 10 kt or less becoming sw 15 to 20 kt in the afternoon. Combined seas 2 to 3 ft, building to 4 to 6 ft in the afternoon.
Mon night..W winds 15 to 25 kt with gusts to 30 kt. Combined seas 7 to 10 ft. Slight chance of showers.
Tue..NW winds 15 to 25 kt with gusts to 30 kt. Combined seas 5 to 7 ft.
Wed..SW winds 10 to 15 kt. Wind waves 2 ft or less. W swell 3 to 5 ft.
PZZ600 249 Pm Pst Fri Feb 23 2018
Synopsis for the southern california coast and santa barbara channel including the channel islands national marine sanctuary and national park..At 21z...or 1 pm pst...a 1039 mb high was 1100 nm nw of point conception and a 1014 mb low was over utah. Gusty nw winds will persist through this evening, resulting in building short period seas. Moderate to strong nw flow will develop again across the coastal waters Sat afternoon and evening.

7 Day Forecast for Marine Location Near Marina del Rey, CA
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location: 33.96, -118.45     debug


Area Discussion for - Los Angeles/Oxnard, CA
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Fxus66 klox 240347
afdlox
area forecast discussion... Updated
national weather service los angeles oxnard ca
747 pm pst Fri feb 23 2018

Synopsis
23 734 pm
temperatures will warm to near normal this weekend then cool again
through the coming week. There is a slight chance of precipitation
Monday and Tuesday and again late in the week but rain or snowfall
amounts would likely be light.

Short term (fri-mon)
23 746 pm

Update...

winds switched from west to east very quickly this evening. This
switch from west to east dropped the wind speeds significantly
and the wind advisories were dropped from all areas. Once again
max temps remained in the 50s for most of the csts and vlys with
just a couple of readings in the lower 60s along the coasts. Dry
north flow will set up aloft along with a slight rise in hgts. The
00z NAM confirms the current forecast for the weekend which looks
pretty good. There will be several degrees of warming each day
and by Sunday MAX temps will be near normal.

The clear skies and cool airmass will combine to bring freezing to
near freezing temps to many vly and inland areas early Saturday
morning and the current suite of frost advisories and freeze
warnings looks on track.

Still low temps will be tricky tonight because the of the offshore
flow. Areas that stay breezy will not see much cooling but in
areas that are wind sheltered (and often times there is not much
distance between a breezy area and a calm one) temps will plummet.

Will update the forecast soon to adjust the winds and remove the
advisory headlines.

***from previous discussion***
trough moved through earlier this morning and now we're firmly in
the north northwest flow behind it. Advisory level winds have been
fairly isolated so far but should see speeds increasing as we
move into the later part of the afternoon so will leave them be
for now. Otherwise we'll transition to a weak offshore flow
pattern over the weekend with warming temps. Still another chilly
night tonight with a series of freeze frost hazards in effect.

Like the highs, overnight lows should warm up a couple degrees
each night through early next week. Offshore gradients peak Sunday
morning, and Sunday should be our warmest day, however without
much in the way of upper support winds should remain below
advisory levels.

Gradients turn onshore Monday ahead of the next trough dropping
south along the west coast. This will cool temps off a few
degrees, especially closer to the coast. That trough, though a
little farther west than the recent troughs, still has a
significant over land component and thus has limited moisture
available to it and really no southerly flow to help it survive
the turn around pt conception. So while chances for rain to the
north are reasonably high, southern areas may get shutout again or
at most get a few hundredths Monday night. And pretty cold air
with it as well so low snow levels again for the mountains and
possibly another inch or two of snow, especially north facing
slopes.

Long term (tue-fri)
23 134 pm
cool and breezy again Tuesday behind the Monday trough but dry
through at least Wednesday and likely Thursday as well. Might have
another round of frost freeze hazards for Tuesday morning in wind
protected areas. The last few model runs of the GFS and now the
latest ECMWF have trended much weaker with the weather system for
the end of next week. Both now push the low east into montana
rather than drop it south off the california coast as they once
did. So while there's still a chance of rain the amounts are a
small fraction of what they were at one time. In fact some of the
ensemble members don't have any rain over the area, though most
support at least some light rain on Friday and a few are still
even holding out for the bigger rain producer that earlier
operational runs supported. Since our Friday pops were already
pretty conservative those have been left alone and we'll see how
this evolves over the next few days. Given the pattern this season
it's hard not to favor the drier scenario now offered by a
majority of the solutions.

Aviation
24 0002z
at 2340z at klax, there was no marine layer nor a sfc based
inversion.

Good confidence in cavu conds at all terminals. Only moderate
confidence in winds. Mdt turbc over and near to hier trrn.

Klax... Good confidence in cavu fcst. There is a 30 percent chc of
gusty x-wnds persisting to 08z.

Kbur... Good confidence in cavu fcst. There is a 30 percent chc of
gusty north wnds persisting to 09z. Lgt-ocnl mdt turbc sfc to 110.

Marine
23 1234 pm
for the outer waters, generally good confidence in current
forecast. Minimal gale force winds will continue through this
evening. At least small craft advisory (sca) level winds will
prevail Saturday afternoon through Wednesday, with a 70% chance
of gale force winds Saturday night and again Monday night and
Tuesday.

For the inner waters, generally good confidence in current
forecast. For the waters north of point sal, there is an 80%
chance of SCA level winds each afternoon evening through Saturday,
and again Monday through Wednesday. For the waters south of point
conception, SCA level winds will continue through this evening
with a 70% chance of SCA level winds Saturday afternoon evening.

For Monday through Wednesday, there is a 70% chance of a repeat of
sca level winds mainly in the afternoon evening hours.

Lox watches warnings advisories
Ca... Freeze warning in effect from 1 am to 9 am pst Saturday for
zones 34-35-44-46. (see laxnpwlox).

Hard freeze warning in effect from 1 am to 9 am pst Saturday
for zone 36. (see laxnpwlox).

Frost advisory in effect from 1 am to 9 am pst Saturday for
zones 39-40-45-88-547. (see laxnpwlox).

Pz... Small craft advisory in effect until 9 pm pst this evening
for zones 645-650-655. (see laxmwwlox).

Hazard potential outlook (mon-fri)
Low elevation snow possible Monday night into Tuesday creating
hazardous driving conditions in the mountains, especially across
the interstate 5 corridor.

Public... Mw rorke
aviation... Rorke
marine... Sirard
synopsis... Kj
weather.Gov losangeles


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
ICAC1 - 9410840 - Santa Monica Pier 4 mi51 min N 8.9 G 18 51°F 56°F1026 hPa
46221 - Santa Monica Bay, CA (028) 12 mi33 min 58°F5 ft
PXAC1 17 mi45 min NW 4.1 G 4.1
BAXC1 17 mi45 min NW 6 G 6
PSXC1 18 mi45 min NNW 2.9 G 5.1
PFXC1 19 mi45 min NNW 5.1 G 6 50°F
PFDC1 19 mi45 min WNW 6 G 6
OHBC1 - 9410660 - Los Angeles, CA 19 mi45 min 58°F1026.2 hPa
AGXC1 20 mi45 min NW 5.1 G 6 51°F 1026 hPa
PRJC1 21 mi45 min NNW 5.1 G 6
46256 22 mi41 min 55°F3 ft
46222 - San Pedro, CA (092) 25 mi33 min 56°F4 ft
46253 30 mi33 min 58°F3 ft
46262 34 mi33 min 59°F5 ft
46025 - Santa Monica Basin - 33NM West Southwest of Santa Monica, CA 35 mi33 min N 12 G 16 58°F1025.7 hPa

Wind History for Santa Monica, CA
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N4
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G11
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G19
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G13
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G24
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NE4
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SE2
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G14
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G15
N3
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NE7
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G16
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G4
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Los Angeles, Los Angeles International Airport, CA3 mi70 minN 610.00 miFair50°F18°F28%1025.8 hPa
Santa Monica, Santa Monica Municipal Airport, CA5 mi72 minN 610.00 miFair49°F17°F28%1025.7 hPa
Hawthorne, Hawthorne Municipal Airport, CA6 mi70 minN 010.00 miFair47°F21°F36%1026.1 hPa
Los Angeles / USC Campus Downtown, CA10 mi2.3 hrsN 010.00 miFair48°F19°F32%1025.5 hPa
Van Nuys, Van Nuys Airport, CA17 mi72 minN 1310.00 miFair45°F17°F33%1025.3 hPa
Burbank - Bob Hope Airport, CA17 mi70 minN 010.00 miFair43°F17°F35%1024.8 hPa
Long Beach, Long Beach Airport, CA18 mi70 minWNW 310.00 miFair47°F21°F36%1026 hPa
Los Alamitos Army Airfield, CA24 mi65 minN 010.00 miFair39°F21°F50%1026.4 hPa

Wind History from LAX (wind in knots)
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Last 24hrNW10W13NW5NW9NW6N8
G17
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W15W19W17W21NW14
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N9N7N11N8N6E4
1 day agoE5NE5E4E4NE5E7E7SE5W8W8W12W15W13
G18
W12W12W17W18W16W10SW6SW4NW6N5W4
2 days agoNE3E4NE6E4NE6NE4E65S3W7W14W14W15
G22
W16W17W14W14NW5N4N3NW3CalmNE4E5

Tide / Current Tables for Santa Monica, California
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Santa Monica
Click for Map
Sat -- 01:45 AM PST     Moonset
Sat -- 03:48 AM PST     5.02 feet High Tide
Sat -- 06:28 AM PST     Sunrise
Sat -- 11:30 AM PST     0.07 feet Low Tide
Sat -- 12:24 PM PST     Moonrise
Sat -- 05:46 PM PST     Sunset
Sat -- 06:14 PM PST     3.20 feet High Tide
Sat -- 10:33 PM PST     2.26 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
3.33.94.54.954.84.13.22.21.30.50.10.10.51.11.82.533.23.12.92.52.32.3

Tide / Current Tables for King Harbor, Santa Monica Bay, California
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King Harbor
Click for Map
Sat -- 01:44 AM PST     Moonset
Sat -- 03:53 AM PST     4.84 feet High Tide
Sat -- 06:28 AM PST     Sunrise
Sat -- 11:33 AM PST     0.05 feet Low Tide
Sat -- 12:24 PM PST     Moonrise
Sat -- 05:45 PM PST     Sunset
Sat -- 06:18 PM PST     3.10 feet High Tide
Sat -- 10:38 PM PST     2.25 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
3.13.74.34.74.84.643.22.21.30.50.10.10.411.72.42.93.132.82.52.32.3

Weather Map and Satellite Images
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Weather Map
wmap_P
IR Satellite Image from GEOS
west_satellite

GOES Local Image of Southwest    EDIT
Geos

Wind Forecast for Los Angeles/Oxnard, CA (5,6,7,8)
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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.