Marine Weather and Tides
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|Sunrise 6:45AM||Sunset 6:52PM||Sunday September 23, 2018 1:48 PM PDT (20:48 UTC)||Moonrise 6:31PM||Moonset 5:18AM||Illumination 99%|
7 Day Forecast for Marine Location Near Lake Sherwood, CAHourly EDIT Help
Area Discussion for - Los Angeles/Oxnard, CA  (on/off)  Help NOTE: mouseover dotted underlined text for definition
|Fxus66 klox 231807|
area forecast discussion
national weather service los angeles oxnard ca
1107 am pdt Sun sep 23 2018
Aviation discussion updated...
Synopsis 23 732 am.
The daily temperatures will vary slightly but stay around normal
into next week with fair skies, except for an overnight coastal
marine layer that may spread to some valleys. A low may approach
by early next week, then a high will linger into Thursday, and
then a low should follow for the weekend.
Short term (tdy-tue) 23 908 am.
do not expect to make any updates to the forecast this morning.
Current forecast is on track with anticipated cooling as onshore
pressure gradients increase and the marine layer deepens in
response to an approaching trof that will cross the northern
portion of the state between now and Monday. Lower heights along
with the aforementioned changes in the pressure gradients and
marine layer depth will insure cooler temperatures, especially
inland where the effects will have greater impact. The marine
layer depth this morning was around 1500 feet and should deepen
further by Monday morning.
Additional cooling can be expected on Monday as the trof continues
to traverse the northern portion of the state on its way to the
great basin. The marine layer will likely get into the valleys
Monday morning. One change for the afternoon package will be to
increase the winds in the antelope valley for Monday afternoon and
evening as the onshore gradient from lax-dag looks just as strong
Monday as it is today.
***from previous discussion***
an upper trough will drop southeastward though the pacific nw
and into the great basin today and tonight. The marine layer will
likely deepen in response to this, with widespread low clouds
across the coastal plain likely pushing into many valley
locations. The WRF shows additional cooling at 950 and at 850 mb
on mon, so expect a few degrees of cooling in most areas, with
temps near to slightly below normal in most areas.
The upper trough will move into the center of the country mon
night and tue, but a weak baggy trough will hang back across
southern and eastern portions of the region. Expect mostly minor
changes to the marine layer depth and the night through morning
low cloud pattern Mon night Tue morning, with clouds widespread in
coastal areas and in many valley locations. Height rises and
weakening onshore flow may lead to a bit of 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.
Long term (wed-sat) 23 415 am.
An upper high will be located well off the pac NW coast Tue night
and wed, as a large upper low tracks to its south, over 700 nm
west of point conception on wed. An upper ridge will develop along
and just off the west coast ahead of this upper low. Heights and
thicknesses will rise across the region, and the marine layer will
become more shallow, with night through morning low clouds likely
confined mostly to the coastal plain. Onshore gradients will
decrease a bit more and temps at 850 and 950 mb will rise. Expect
several degrees of warming in most areas on wed, with temps rising
to above normal levels. The upper low will slowly move toward ca
on thu, but heights and thicknesses will remain quite high. In
addition onshore gradients are forecast to become even weaker.
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
The ec and the GFS are now in very good agreement showing the
upper low tracking steadily toward the coast Thu night and fri.|
Heights and thicknesses will lower, and onshore gradients will
increase. The marine layer should deepen a bit, with night thru
morning low clouds possibly reaching the valleys Fri morning.
Expect some cooling on fri, especially across slo and
sba counties, closest to the upper low. The upper low is now
forecast to move into the west coast late Fri night or sat. The
gfs maintains it as an upper low as it pushes into the bay area on
sat, while the ec shows it opening up and tracking farther north.
Either way, expect more significant and widespread cooling across
the region on sat, with any precip from this system likely
remaining north of the forecast area.
Aviation 23 1805z.
At 15z at klax... The inversion was around 1300 feet. The top of
the inversion was around 3000 feet with a temperature of about 24
Overall... Moderate confidence in the current tafs. The primary
uncertainty is regards the timing of the lowered conditions.
Ifr MVFR CIGS are lingering along portions of the ventura and los
angeles county coastline but will dissipate by midday. Similar
ifr MVFR conditions will return to all of the coastal areas tonight
and there is a twenty percent chance of ifr MVFR conditions getting
into the coastal adjacent valleys in the morning. Otherwise and
elsewhereVFR conditions will prevail.
Klax... Moderate confidence in the current taf. The primary
uncertainty is regards the timing of the lowered conditions.
Ifr MVFR CIGS are lingering in the vicinity but have cleared from
klax this morning. Similar conditions will return tonight after
06z. OtherwiseVFR conditions will prevail. East winds greater
than 8 kts will not occur during the forecast period.
Kbur... Moderate to high confidence in the current taf. There is a
twenty percent chance of ifr MVFR conditions 14z-17z. Otherwise
vfr conditions will prevail.
Marine 23 839 am.
For the outer waters... Winds across the northern and central
outer waters will weaken midday then strengthen again to small
craft advisory (sca) level through early Monday morning.
Otherwise, conditions will remain below SCA levels through
For the inner waters... Conditions will remain below SCA levels
Pockets of dense fog with visibility one mile or less will remain
through this morning, especially north of point conception and
through the santa barbara channel.
Lox watches warnings advisories
Pz... Small craft advisory in effect from 3 pm this afternoon to 3
am pdt Monday for zone 670. (see laxmwwlox).
Small craft advisory in effect from 1 pm this afternoon to 3
am pdt Monday for zone 673. (see laxmwwlox).
Hazard potential outlook (tue-sat)
No significant hazards expected.
Public... Sweet 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|
|46025 - Santa Monica Basin - 33NM West Southwest of Santa Monica, CA||20 mi||29 min||WSW 7.8 G 9.7||64°F||71°F||1012.5 hPa||62°F|
|46217 - Anacapa Passage, CA (111)||22 mi||28 min||66°F||2 ft|
|46262||23 mi||49 min||70°F||2 ft|
|46221 - Santa Monica Bay, CA (028)||25 mi||19 min||67°F||2 ft|
|ICAC1 - 9410840 - Santa Monica Pier||29 mi||31 min||WSW 8 G 8.9||66°F||71°F||1012.7 hPa|
|46251||33 mi||49 min||68°F||3 ft|
|NTBC1 - Santa Barbara, CA - 9411340||42 mi||73 min||63°F||1013.6 hPa|
|46053 - E. SANTA BARBARA - 12NM Southwest of Santa Barbara, CA||45 mi||29 min||WSW 1.9 G 3.9||63°F||67°F||1013.4 hPa||62°F|
|PXAC1||46 mi||37 min||S 5.1 G 7|
|OHBC1 - 9410660 - Los Angeles, CA||47 mi||31 min||66°F||1012.3 hPa|
|BAXC1||47 mi||31 min||S 7 G 8.9|
|PSXC1||48 mi||31 min||S 8.9 G 12|
|AGXC1||48 mi||31 min||SW 13 G 16||67°F||1012.4 hPa|
|PFDC1||48 mi||37 min||SSW 7 G 8.9|
|46222 - San Pedro, CA (092)||49 mi||19 min||70°F||3 ft|
|PFXC1||49 mi||31 min||SW 13 G 14||72°F|
Wind History for Santa Monica, CA(wind in knots) EDIT (on/off)  Help
Airport ReportsEDIT (on/off)  Help Click EDIT to display multiple airports
|Point Mugu, Naval Air Warfare Center, CA||7 mi||52 min||SSW 9||10.00 mi||Partly Cloudy||72°F||60°F||66%||1013 hPa|
|Camarillo, Camarillo Airport, CA||12 mi||54 min||SW 9||9.00 mi||Fair||75°F||61°F||62%||1013.2 hPa|
|Oxnard, Oxnard Airport, CA||14 mi||58 min||Var 5||10.00 mi||A Few Clouds||71°F||62°F||73%||1012.6 hPa|
Wind History from NTD (wind in knots)
|1 day ago||S||SW||SW||SW||SW||W||Calm||NW||NW||NW||NW||W||W||Calm||NW||NW||NW||N||NW||W||W||W|
|2 days ago||S||SW||SW||S||SW||S||SW||SW||SE||SE||SE||SE||S||Calm||Calm||Calm||Calm||E||Calm||Calm||S||S||S||S |
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GOES Local Image of Southwest EDIT
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Wind Forecast for Los Angeles/Oxnard, CA (16,3,4,5)(on/off)  Help
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