Tuesday, October17, 2017 L-36.com


Marine Weather and Tides
Laguna Niguel, 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 6:56AMSunset 6:14PM Tuesday October 17, 2017 5:16 PM PDT (00:16 UTC) Moonrise 4:49AMMoonset 5:27PM Illumination 6% Phase: Waning Crescent; Moon at 27 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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PZZ750 Coastal Waters From San Mateo Point To The Mexican Border And Out To 30 Nm- 135 Pm Pdt Tue Oct 17 2017
Tonight..Wind W 10 to 15 kt...becoming sw after midnight. Wind waves 2 ft or less. Mixed swell W 2 to 3 ft at 6 seconds and sw 3 to 4 ft at 17 seconds.
Wed..Wind W to 10 kt. Gusts to 15 kt in the afternoon. Wind waves 2 ft or less. Mixed swell W 2 ft at 6 seconds and sw 3 to 4 ft at 16 seconds.
Wed night..Wind W to 10 kt. Gusts to 15 kt in the evening. Wind waves 2 ft or less. Mixed swell W 2 to 3 ft at 6 seconds and sw 3 to 4 ft at 15 seconds.
Thu..Wind variable less than 10 kt...becoming W 10 kt with gusts to 15 kt in the afternoon. Wind waves 2 ft or less. Mixed swell W 2 to 3 ft at 6 seconds and sw 2 to 3 ft at 15 seconds.
Thu night..Wind W 10 to 15 kt. Wind waves 3 ft. Mixed swell W 2 to 4 ft at 7 seconds and sw 2 ft at 14 seconds. Patchy drizzle after midnight.
Fri..Wind W 10 to 15 kt with gusts to 20 kt. Wind waves 4 ft. Mixed swell W 3 to 4 ft and sw 2 ft. Patchy drizzle in the morning.
Fri night..Wind W 10 to 15 kt with gusts to 20 kt. Wind waves 3 to 4 ft in the evening...becoming 2 ft or less. Mixed swell W 4 to 5 ft and sw 1 to 2 ft.
Sat..Wind E to 10 kt...becoming W 10 kt with gusts to 15 kt in the afternoon. Wind waves 2 ft or less... Becoming 3 ft in the afternoon. Mixed swell W 3 to 5 ft and S 1 ft.
Sat night..Wind nw 10 kt with gusts to 15 kt...becoming ne after midnight. Wind waves 2 ft or less. Mixed swell W 2 to 4 ft and S 1 to 2 ft.
Sun..Wind ne 10 kt...becoming nw with gusts to 15 kt in the afternoon. Wind waves 2 ft or less... Becoming 3 ft in the afternoon. Mixed swell W 2 to 3 ft and S 2 ft.
Sun night..Wind N 10 kt. Gusts to 15 kt in the evening. Wind waves 2 ft or less. Mixed swell W 2 to 3 ft and S 2 ft.
PZZ700 135 Pm Pdt Tue Oct 17 2017
Synopsis for the far southern california coast.. At 1 pm, a 1023 mb high was over southern oregon with a ridge west into the pacific, and a 1013 mb low was near thermal, california. Light to moderate northwest winds will continue most of the rest of this week. A low pressure system could bring wind gusts to 25 knots late Thursday night and Friday. An elevated short period northwest swell could bring rough seas Friday and Saturday.

7 Day Forecast for Marine Location Near Laguna Niguel, CA
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location: 33.52, -117.69     debug


Area Discussion for - San Diego, CA
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Fxus66 ksgx 172044
afdsgx
area forecast discussion
national weather service san diego ca
144 pm pdt Tue oct 17 2017

Synopsis
Light offshore winds and high pressure aloft will result in
another very warm day today, with scattered high clouds. An upper
level disturbance may bring some sprinkles or light showers to the
mountains and high deserts late tonight into early Wednesday,
with a small chance of thunderstorms. A deepening trough over the
west will bring a cooling trend Wednesday through Friday with the
marine layer returning and deepening. Expect night and morning
clouds over the coast and portions of the valleys. On Saturday the
flow turns offshore as high pressure builds. That will bring
santa ana conditions, clear skies and hot weather, especially
Sunday and Monday.

Discussion For extreme southwestern california including orange...

san diego... Western riverside and southwestern san bernardino
counties...

infrared satellite imagery this afternoon shows cold cloud tops
(peaking around -55 deg c) and thunderstorms associated with a
short-wave trough offshore of point conception, while scattered
mid and high level clouds can be seen stream into southern
california from the southwest. The 12z miramar sounding indicated
a dry layer from the surface up through 700 mb, a moist layer from
about 660-580 mb, and then dry air above that. Light offshore
flow continues across the region, as the san diego to tonopah
offshore pressure gradient is at 5.2 mb and the san diego to las
vegas gradient is at 2.1 mb. On water vapor satellite, an upper
level ridge can be seen over much of the southwest. This ridge and
the light offshore flow is resulting in another warm day across
southern california today, with 1 pm temperatures in the 90s in
the inland valleys and 80s at the coast. The ridge will start to
get flattened and pushed south tonight as a low pressure system
from alaska moves south off the coast of british columbia. This
will result in onshore flow returning and likely a return of the
marine layer at the coast. There could be dense fog along the
coast late tonight into Wednesday morning, but confidence is low
at the moment as the hrrr and other hi-res models show almost no
fog developing.

On Wednesday, the aforementioned short-wave trough gets picked up
by the west flow aloft as the large scale trough off of british
columbia deepens further. The short-wave trough will move across
point conception late tonight and then across northern san
bernardino county Wednesday morning into Wednesday afternoon. The
bulk of the moisture and lift will be close to the short-wave
while the best elevated instability will be south into riverside
and san diego counties. With those parameters not really lining
up, confidence in any widespread elevated convection occurring is
low at the moment, with best chances for some isolated
thunderstorms being in san bernardino county and the best chances
for any measurable rainfall being in the mountains where the rain
will not have to go through a deep dry layer. There's a chance
that nothing more than sprinkles virga will occur as hi-res model
composite reflectivity forecasts show not much of anything
developing and the 18z nam12 is further north with the short-wave.

A cooling trend will begin on Wednesday and continue through
Friday as the large-scale trough deepens further and moves inland
over the pacific northwest. The coolest day will be Friday when
highs fall to 5-10 degrees below normal. Onshore flow will
strengthen as a result, with strong and gusty west winds in the
mountains and deserts (gusts 30-40 mph, local 50 mph). Finally,
the marine layer will deepen each day, eventually reaching around
3500-4000 ft msl on Friday. Expect night and morning marine layer
stratus clouds over the coast and portions of the valleys. There
may be just enough moisture and lift Friday morning for some
drizzle or isolate light showers over and west of the coastal
slopes of the mountains.

Surface high pressure building over the great basin will turn the
flow offshore starting Saturday which, in addition to a building
upper level ridge, will create significant drying and warming. It
will continue to get hotter Sunday and Monday as the ridge builds
further and becomes anomalously strong, with the ECMWF showing 500
mb heights of around 594 dm on Sunday and 596 dm on Monday.

Santa ana winds will continue (right now looking to be around
moderate strength) as well, so expect it to get pretty hot even
all the way to the coast.

Aviation
172015z... Sct clouds at above 15000 ft msl will prevail through wed
with unrestricted vis. There is a small chance of thunderstorms late
night and wed, mainly over the mountains of san bernardino and
riverside counties, likely with bases above 10000 ft msl.

Stratus fog is unlikely in coastal areas tonight or early wed.

Stratus fog will likely return late Wed afternoon or evening.

Marine
No hazardous marine weather is expected through Thursday. Winds will
increase to 20-25 kt in the outer coastal waters late
Thursday night and Friday, decreasing by Saturday.

Beaches
A south southwest swell from 200 degrees will peak today-Wednesday
at 3-4 ft 16-18 seconds. This will produce 3-6 ft surf with sets to
7 ft over orange county and south in san diego county to solana
beach. Highest surf will occur along southwest facing beaches.

Strong rip and longshore currents will accompany the elevated surf.

Swell and surf will lower Thursday. A beach hazard statement is in
effect for elevated surf and strong rip currents through
Wednesday.

Fire weather
Very warm and dry weather (humidity once again down to 5-10
percent) will continue today, but with light winds. An upper
level disturbance may bring some sprinkles light showers to the
mountains and high deserts late tonight into tomorrow morning,
with a small chance for dry lightning strikes. Increasingly cool
and more humid Wednesday through Friday as a trough moves in over
the west. Gusty westerly onshore winds in mountains and deserts
Thursday and Friday, with gusts 30-40 mph and local 50 mph.

Another round of moderate santa ana winds likely Saturday through
at least Monday, with day-time humidity falling down to at least
10 percent Sunday and Monday (with poor overnight recoveries)
along with hot conditions and gusty northeast winds. This would
likely result in critical fire weather conditions through and
below the mountain passes and into the coastal slopes and
foothills Sunday through at least Monday.

Skywarn
Skywarn activation is not requested. However weather spotters are
encouraged to report significant weather conditions.

Sgx watches warnings advisories
Ca... Beach hazards statement through Wednesday evening for orange
county coastal areas-san diego county coastal areas.

Pz... None.

Public fire weather... Harrison
aviation marine... Maxwell


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
46242 - Camp Pendleton Nearshore, CA (043) 25 mi79 min 69°F4 ft
46224 - Oceanside Offshore, CA (045) 26 mi77 min 71°F4 ft
46253 26 mi77 min 70°F3 ft
46256 30 mi85 min 67°F3 ft
PRJC1 30 mi47 min WSW 12 G 13
PFXC1 32 mi47 min SW 12 G 13 73°F
AGXC1 32 mi47 min SW 9.9 G 12 70°F 1012.9 hPa
PFDC1 33 mi47 min S 7 G 8
PSXC1 33 mi47 min S 2.9 G 6
BAXC1 34 mi47 min Calm G 0
46222 - San Pedro, CA (092) 34 mi77 min 69°F2 ft
OHBC1 - 9410660 - Los Angeles, CA 34 mi47 min 67°F1012.9 hPa
PXAC1 35 mi47 min E 2.9 G 4.1
46225 - Torrey Pines Outer, CA (100) 44 mi86 min 71°F4 ft

Wind History for Los Angeles Pier J, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
John Wayne-Orange County Airport, CA15 mi24 minWSW 410.00 miPartly Cloudy85°F48°F28%1012.5 hPa
Mcolf Camp Pendleton (Red Beach), CA21 mi21 minWSW 410.00 miLight Rain75°F64°F71%1021.6 hPa
Oceanside, Camp Pendleton, Marine Corps Air Station, CA24 mi82 minSSW 810.00 miMostly Cloudy82°F48°F32%1013 hPa

Wind History from SNA (wind in knots)
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Last 24hrSW4SW3S4CalmCalmSW3CalmCalmCalmCalmCalmCalmCalmCalmCalmSW4CalmCalm3S7W8SW7W5W4
1 day ago3S6CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmSW34S6SW8W6SW7W4
2 days agoSW4SW4S4SE4S3CalmCalmCalmCalmCalmCalmCalmN3CalmS3CalmCalmSW3S7SW5SW6SW8SW8SW6

Tide / Current Tables for San Clemente, California
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San Clemente
Click for Map
Tue -- 02:13 AM PDT     -0.05 feet Low Tide
Tue -- 04:49 AM PDT     Moonrise
Tue -- 06:56 AM PDT     Sunrise
Tue -- 08:28 AM PDT     5.62 feet High Tide
Tue -- 02:41 PM PDT     0.36 feet Low Tide
Tue -- 05:26 PM PDT     Moonset
Tue -- 06:13 PM PDT     Sunset
Tue -- 08:38 PM PDT     5.24 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.50.4-00.212.33.74.95.55.54.93.72.41.20.50.40.923.24.45.15.24.73.6

Tide / Current Tables for Newport Beach, Newport Bay Entrance, Corona del Mar, California (sub)
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Newport Beach
Click for Map
Tue -- 02:10 AM PDT     0.23 feet Low Tide
Tue -- 04:50 AM PDT     Moonrise
Tue -- 06:58 AM PDT     Sunrise
Tue -- 08:31 AM PDT     5.57 feet High Tide
Tue -- 02:38 PM PDT     0.62 feet Low Tide
Tue -- 05:27 PM PDT     Moonset
Tue -- 06:14 PM PDT     Sunset
Tue -- 08:39 PM PDT     5.25 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.60.70.20.41.22.43.74.85.55.54.93.82.61.40.80.71.22.23.44.45.15.24.73.7

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 San Diego, 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.