Sunday, December16, 2018 L-36.com


Marine Weather and Tides
Descanso, CA

Version 3.4
What's New / NOTES
10/6/2018 Colors of tide XTide graphs changed to emphasize that they were upgraded. See next note. Comments welcome.
10/4/2018 I have fixed XTide and updated the harmonic files. There were some name changes so you might have to click EDIT to find the new station name.

Sunrise 6:42AMSunset 4:44PM Sunday December 16, 2018 6:54 PM PST (02:54 UTC) Moonrise 1:53PMMoonset 1:21AM Illumination 71% 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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PZZ750 Coastal Waters From San Mateo Point To The Mexican Border And Out To 30 Nm- 148 Pm Pst Sun Dec 16 2018
Tonight..Wind nw to 10 kt in the evening...becoming variable less than 10 kt. Wind waves 2 ft or less. SWell W 3 to 5 ft at 16 seconds.
Mon..Wind nw 10 kt. Gusts to 15 kt in the afternoon. Wind waves 2 ft or less. SWell W 5 to 8 ft at 19 seconds.
Mon night..Wind nw 10 kt. Gusts to 15 kt in the evening. Wind waves 2 ft or less. SWell W 5 to 8 ft at 18 seconds. Slight chance of showers.
Tue..Wind variable less than 10 kt...becoming nw 10 kt in the afternoon. Wind waves 2 ft or less. SWell W 5 to 8 ft at 17 seconds.
Tue night..Wind nw 10 kt in the evening... Becoming variable less than 10 kt. Wind waves 2 ft or less. SWell W 3 to 6 ft at 15 seconds.
Wed..Wind variable less than 10 kt. Wind waves 2 ft or less. SWell W 3 to 5 ft.
Wed night..Wind variable less than 10 kt...becoming N 10 kt after midnight. Wind waves 2 ft or less. SWell W 3 to 5 ft.
Thu..Wind E 10 kt in the morning...becoming variable less than 10 kt. Wind waves 2 ft or less. SWell W 4 to 7 ft.
Thu night..Wind variable less than 10 kt. Wind waves 2 ft or less. SWell W 3 to 5 ft. Patchy fog with vsby 1 nm or less after midnight.
Fri..Wind variable less than 10 kt. Wind waves 2 ft or less. SWell W 2 to 4 ft. Patchy fog with vsby 1 nm or less in the morning.
Fri night..Wind variable less than 10 kt. Wind waves 2 ft or less. SWell W 2 to 4 ft. Patchy fog with vsby 1 nm or less after midnight.
PZZ700 148 Pm Pst Sun Dec 16 2018
Synopsis for the far southern california coast.. At 1 pm, a 1022 mb high was 300 nm southwest of san diego with high pressure covering most of the southwest. Weak onshore flow will prevail through Tuesday, then weak offshore flow will occur Tuesday night through Thursday. A large long-period northwest swell will move through the coastal waters Monday and Tuesday and likely produce combined seas of 10 to 13 feet in the outer coastal waters.


7 Day Forecast for Marine Location Near Descanso, CA
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location: 32.87, -116.63     debug


Area Discussion for - San Diego, CA
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Fxus66 ksgx 162221
afdsgx
area forecast discussion
national weather service san diego ca
221 pm pst Sun dec 16 2018

Synopsis
The tail end of a storm system moving across northern california
tonight will reach southern california on Monday. There is just a
slight chance of light showers along and west of the mountains
Monday afternoon through Monday night as this storm weakens. A
strong ridge will build into the region behind this system the
trough with fair and much warmer weather Wednesday through
Friday. The ridge will break down over the weekend as storms pass
by well to the north. This will lead to slight cooling, but a
continuation of dry conditions is expected through next weekend.

High surf will pound the beaches Monday and Tuesday.

Discussion For extreme southwestern california including orange...

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

Highlights
* tail end of weakening storm brings slight chc showers Monday
* warm, dry weather rest of the week with peak warmth midweek
* high surf to pound the beaches Monday-Tuesday
a tranquil and mainly dry weather pattern will prevail through
next weekend.

A storm system is moving into norcal this afternoon and will
continue to move southeast with the tail end reaching socal on
Monday. Moisture transport will be dwindling and as such will
maintain just a slight chance of showers in the forecast Monday
afternoon through early Tuesday morning.

Behind this system will be an expansive, anomalous upper ridge
building over baja and into southern california (naefs return
interval at 5-10 year) with the ridge axis fully over the area on
Thursday when h5 heights peak to around 588 dm. The result will
be temps going from above average to much above average wed-fri
with 80s common inland on Thursday (except of course in the
mountains as well as across the high desert).

The ridge will break down as storm systems pass by well to the
north this weekend. This will lead to some cooling, but temps
will remain running above average. Dry weather will prevail.

Early next is favoring a dry scenario with an inside upper trough
scenario. This is portrayed in the operational GFS run as well as
the gefs. However, the latest operational run of the ECMWF shows
a closed low diving southward and right over socal on christmas
day, but with low qpf. So while we can't discount that scenario,
favoring a dry one at this time.

Aviation
162100z... Coast valleys... Areas of bkn-ovc stratus will develop
within 15 miles of the coast tonight, mostly after 05z, with bases
around 1000 feet msl and tops to 1500 feet msl, with local vis less
than 3 miles in the valleys 08z-16z mon. Bases of the clouds could
rise after 15z mon, but most areas should become sct by 18z mon.

Otherwise, high clouds above 20000 feet msl will increase tonight
with some mid-level clouds between 5000 and 10000 feet msl
increasing Monday.

Mountains deserts... Some high clouds above 20000 feet msl with
unrestricted vis will prevail through tonight, with an increase in
clouds at various height levels and possible local mountain
obscurations Monday. There is a small chance of very light showers
late Monday.

Marine
A large wnw swell Monday and Tuesday will generate combined seas of
10-13 feet in the outer coastal waters. Swell and seas will lower
Wednesday, but another wnw swell could bring seas near 10 feet in
the outer coastal water Thursday.

Beaches
A high surf advisory is in effect from Monday morning through
Tuesday evening. A west northwest swell of 10-13 ft in the outer
waters with a period of 18-20 sec from 290 degrees will impact the
area Monday and Tuesday. Surf of 6-11 feet is likely with sets to 13
ft possible, highest south of del mar. Strong rip currents and
dangerous swimming conditions at all beaches. Swell and surf will
gradually lower on Wednesday, though another large swell could
again bring elevated surf Thursday or Friday.

Skywarn
Skywarn activation will not be needed this weekend.

Sgx watches warnings advisories
Ca... High surf advisory from 8 am Monday to 10 pm pst Tuesday for
orange county coastal areas-san diego county coastal areas.

Pz... None.

Public... Gregoria
aviation marine... Maxwell


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
SDBC1 - 9410170 - San Diego, CA 31 mi60 min 1020.4 hPa
LJPC1 - La Jolla, CA (073) 33 mi34 min WNW 2.9 3 ft
TIXC1 - Tijuana River Reserve, CA 33 mi69 min WNW 1 58°F 1021 hPa55°F
LJAC1 - 9410230 - La Jolla, CA 33 mi60 min WNW 2.9 G 5.1 61°F 63°F1020.6 hPa
46254 34 mi54 min 63°F2 ft
46235 35 mi54 min 62°F4 ft
46225 - Torrey Pines Outer, CA (100) 41 mi54 min 64°F3 ft
46258 47 mi54 min 65°F5 ft
46232 - Point Loma South, CA (191) 48 mi54 min 64°F5 ft
46224 - Oceanside Offshore, CA (045) 49 mi54 min 63°F3 ft

Wind History for USS MIDWAY South Navy Pier, San Diego, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Gillespie Field Airport, CA18 mi67 minW 410.00 miClear61°F50°F68%1020.3 hPa
Ramona, Ramona Airport, CA19 mi61 minSE 310.00 miFair51°F44°F77%1020.7 hPa
Campo, CA19 mi62 minE 5 mi50°F37°F61%1020.2 hPa

Wind History from SEE (wind in knots)
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Last 24hrCalmCalmCalmNW4Calm--CalmCalm------CalmCalmCalmCalmCalmCalmCalmCalmCalmW10W10CalmW4
1 day agoCalmCalm--S3CalmSE4--S3Calm--------NW3--CalmCalmCalm--W5W10W10W7W6
2 days agoCalmCalmCalmCalm----CalmNW3NW3CalmCalmCalmCalmCalmCalmCalmCalmCalmW5CalmCalmW6W4Calm

Tide / Current Tables for National City, San Diego Bay, California
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National City
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Sun -- 12:23 AM PST     Moonset
Sun -- 04:53 AM PST     4.92 feet High Tide
Sun -- 06:43 AM PST     Sunrise
Sun -- 11:25 AM PST     2.13 feet Low Tide
Sun -- 12:54 PM PST     Moonrise
Sun -- 04:34 PM PST     3.78 feet High Tide
Sun -- 04:44 PM PST     Sunset
Sun -- 10:41 PM PST     1.28 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.92.73.54.34.84.94.74.23.62.92.42.22.22.533.43.73.83.532.41.81.41.3

Tide / Current Tables for San Diego, California (2)
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San Diego
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Sun -- 12:23 AM PST     Moonset
Sun -- 04:49 AM PST     4.70 feet High Tide
Sun -- 06:44 AM PST     Sunrise
Sun -- 11:15 AM PST     2.23 feet Low Tide
Sun -- 12:54 PM PST     Moonrise
Sun -- 04:30 PM PST     3.61 feet High Tide
Sun -- 04:44 PM PST     Sunset
Sun -- 10:31 PM PST     1.42 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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2.12.83.54.24.64.74.543.42.92.42.22.32.633.33.63.63.32.92.31.81.51.5

Weather Map and Satellite Images
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wmap_P
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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Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for San Diego, CA (21,6,7,8)
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Ground Weather Radar Station San Diego, 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.