Marine Weather and Tides
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|Sunrise 6:42AM||Sunset 6:47PM||Monday September 24, 2018 10:32 AM PDT (17:32 UTC)||Moonrise 7:00PM||Moonset 6:11AM||Illumination 100%|
7 Day Forecast for Marine Location Near Rancho Palos Verdes, CAHourly EDIT Help
Area Discussion for - Los Angeles/Oxnard, CA  (on/off)  Help NOTE: mouseover dotted underlined text for definition
|Fxus66 klox 241700|
area forecast discussion
national weather service los angeles oxnard ca
1000 am pdt Mon sep 24 2018
Synopsis 24 802 am.
Temperatures are expected to be lower today and start to warm up
Tuesday. A low pressure will approach the west coast, bringing
them back down by Friday and through the weekend. Night through
and morning low clouds will return to coastal areas and some
valleys during this time.
Short term (tdy-thu) 24 1000 am.
Marine layer has deepened to 2300' this morning and there's a
slight onshore trend in the pressure gradients. Thus cooling in
the forecast for today looks good. Stratus will be slower to clear
and may linger at some beaches through the afternoon. 12z model
forecast soundings do show a decrease in marine layer depth
tonight of around 700' and 1-2mb offshore trend so this should
generate some warming area-wide, though more so for inland areas.
***from previous discussion***
an upper trough dropping into the great basin will move eastward
into the northern rockies and great plains tonight and tue, but
models continue to show a weak baggy trough hanging back across
the region through Tuesday morning. Heights will begin to rise
Tuesday afternoon, especially across slo and sba counties as a
strong upper high well off the pac NW begins to build southeastward
toward the region. Do not expect much change in the marine layer
depth or the coverage of night thru morning low cloud pattern
tonight Tue morning, although there may be less inland penetration
of the low clouds in the valleys as onshore flow begins to weaken.
Height rises should lead to some warming on tue, with the best
warming in the mtns and deserts, and across slo and northern sba
counties where height rises will be greatest. Clouds should clear
a bit faster on tue, which may also allow for slight warming in
valley and possibly coastal areas.
The upper high well off the pac NW coast Tue night and Wed will
continue to build into the west coast to the north of the region.
Another ridge will pop across and just west of the forecast area
on the eastern edge of a large upper low in the eastern pacific,
many hundreds of miles to the west. Expect heights and
thicknesses to rise across the region, so the marine layer should
become more shallow, with night through morning low clouds likely
confined mostly to the coastal plain. Onshore gradients will
decrease a bit more, and make flip very weakly offshore wed
morning. Temps at 850 and 950 mb will also rise. This should all
result in several degrees of warming in most areas on wed, with
temps rising to above normal levels.
Long term (fri-mon) 24 406 am.
The upper low will continue to move slowly toward ca on thu, but
fairly strong ridging should hold, and heights and thicknesses
will remain quite high. Onshore gradients will remain quite weak.
Expect little change in MAX temps across the region on thu, and
there could even be a bit more warming especially across l.A. And
vtu counties as 950 mb temps cont to edge upward.
The ec and the GFS continue to be in rather good agreement are
now in very good agreement in showing the upper low tracking
toward the coast Thu night and fri, to a position about 250-300 nm
west of san francisco Fri afternoon. Across the region, lowering
heights and thicknesses should lead to some deepening of the
marine layer, with night thru morning low clouds probably pushing
into the lower valleys Thu night Fri morning. Expect a few to|
several degrees of cooling in most areas on fri.
The upper low will track into northern ca Fri night and sat.
The GFS is slightly faster and farther south with its track, just
north of san francisco late Sat morning, while the ec takes it to
near eureka by Sat evening. A trough will extend southward into
the forecast areas, causing heights and thicknesses to continue
to lower. Onshore flow will also increase. Expect the marine layer
to deepen, with widespread night through morning low clouds and
fog in coastal and valley areas. Expect considerable cooling
across the entire region on sat, with temps down to below normal
levels. The upper low will open up a weaken Sat night and sun, but
a broad trough will linger over the region. This should maintain
a deep marine layer with plenty of night through morning low
clouds in coastal and valley areas. MAX temps should not change
too much on sun, generally remaining below normal.
Aviation 24 1034z.
At 1030z, the marine inversion at klax was based at 1600 feet.
The top of the inversion was 3100 feet with a temperature
of 22 degrees celsius.
Overall, moderate to high confidence in current forecast.
Currently, ifr lifr conditions are impacting all coastal and
coastal valley sites. Expect these flight restrictions by late
this morning. For tonight, expect a bit shallower marine inversion
with stratus fog likely confined to the coastal plain with
ifr lifr conditions.
Klax... Moderate confidence in 12z taf. Dissipation of ifr
conditions this morning could be + - 2 hours of current 18z
forecast. For tonight, high confidence in return of ifr
conditions, but low confidence in timing (could be + - 3 hours of
current 04z forecast).
Kbur... Moderate confidence in 12z taf. There is a 40% chance that
ifr conditions could linger until 18z this morning. For tonight,
there is a 30% chance that ifr lifr conditions could develop.
Marine 24 931 am.
For the outer waters, high confidence in current forecast. Winds
and seas are expected to remain below small craft advisory (sca)
levels through Friday.
For the inner waters, high confidence in current forecast. Winds
and seas are expected to remain below SCA levels through Friday.
Dense fog with visibility one nautical mile or less will affect
portions of the coastal waters through this morning. Highest
confidence for dense fog exists for the coastal waters north of
point conception, but the santa barbara channel may also be
affected this morning.
Lox watches warnings advisories
Hazard potential outlook (thu-mon)
No significant hazards expected.
Public... Mw db
Weather Reporting StationsEDIT (on/off)  Help NOTE: Click on distance to see the station location on a map
|Stations||Dist||Age||Wind||Air Temp||Water Temp||Waves||Pressure||DewPt|
|OHBC1 - 9410660 - Los Angeles, CA||2 mi||32 min||65°F||1013.1 hPa (+1.4)|
|AGXC1||4 mi||32 min||69°F|
|PFDC1||4 mi||62 min||ENE 5.1 G 6|
|PXAC1||5 mi||62 min||ESE 5.1 G 6|
|PSXC1||6 mi||62 min||SSE 7 G 8|
|PFXC1||6 mi||32 min||69°F|
|BAXC1||6 mi||62 min||SSE 6 G 7|
|46222 - San Pedro, CA (092)||6 mi||32 min||69°F||2 ft|
|46256||6 mi||32 min||67°F||2 ft|
|PRJC1||7 mi||62 min||WSW 4.1 G 5.1|
|46253||11 mi||32 min||70°F||2 ft|
|46221 - Santa Monica Bay, CA (028)||20 mi||32 min||67°F||2 ft|
|ICAC1 - 9410840 - Santa Monica Pier||24 mi||32 min||65°F||70°F||1013.2 hPa (+1.4)|
|46262||37 mi||32 min||69°F||3 ft|
|46025 - Santa Monica Basin - 33NM West Southwest of Santa Monica, CA||40 mi||22 min||SSE 7.8 G 9.7||63°F||69°F||1012.7 hPa||60°F|
Wind History for Los Angeles Pier 400, CA(wind in knots) EDIT (on/off)  Help
Airport ReportsEDIT (on/off)  Help Click EDIT to display multiple airports
|Torrance, Zamperini Field Airport, CA||7 mi||38 min||WSW 5||6.00 mi||Fog/Mist||68°F||57°F||69%||1012.9 hPa|
|Long Beach, Long Beach Airport, CA||12 mi||39 min||N 0||10.00 mi||Overcast||69°F||57°F||68%||1012.8 hPa|
|Los Alamitos Army Airfield, CA||15 mi||94 min||N 0||7.00 mi||Overcast||67°F||58°F||75%||1012.8 hPa|
|Hawthorne, Hawthorne Municipal Airport, CA||16 mi||39 min||N 0||7.00 mi||Overcast||67°F||57°F||73%||1012.8 hPa|
|Los Angeles, Los Angeles International Airport, CA||17 mi||39 min||WNW 3||8.00 mi||Overcast||67°F||57°F||73%||1012.7 hPa|
|Fullerton, Fullerton Municipal Airport, CA||21 mi||39 min||S 3||10.00 mi||Overcast||69°F||57°F||66%||1012.5 hPa|
|Avalon Catalina Airport, CA||21 mi||41 min||Var 4||10.00 mi||Mostly Cloudy||64°F||59°F||84%||1011.9 hPa|
|Los Angeles / USC Campus Downtown, CA||22 mi||45 min||N 0||6.00 mi||Overcast with Haze||72°F||59°F||64%||1012.2 hPa|
|John Wayne-Orange County Airport, CA||23 mi||39 min||SW 3||10.00 mi||Overcast||68°F||59°F||73%||1012.7 hPa|
|Santa Monica, Santa Monica Municipal Airport, CA||24 mi||41 min||S 4||10.00 mi||Overcast||69°F||57°F||68%||1012.7 hPa|
Wind History from TOA (wind in knots)
|1 day ago||W||W||W||W||W||W||W||W||W||W||Calm||Calm||Calm|
|2 days ago||W||W||W||W||W||W||W||W||W||W||W||W||W |
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Wind Forecast for Los Angeles/Oxnard, CA (13,3,4,5)(on/off)  Help
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