Wednesday, March22, 2017 L-36.com


Marine Weather and Tides
Palm Desert, CA

Version 3.4
What's New / NOTES
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.
3/12/2015 - Added section for Gulf current for users in the GMZ marine zones.
This was requested by a user. If you have requests, please let me know.

Sunrise 6:43AMSunset 7:00PM Wednesday March 22, 2017 5:24 PM PDT (00:24 UTC) Moonrise 3:08AMMoonset 1:47PM Illumination 22% Phase: Waning Crescent; Moon at 25 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- 130 Pm Pdt Wed Mar 22 2017
.small craft advisory in effect from 9 pm pdt this evening through Thursday afternoon...
Tonight..Wind W 15 to 25 kt with gusts to 30 kt. Wind waves 5 ft. SWell W 5 to 8 ft at 12 seconds. Showers likely and slight chance of tstms in the evening, then chance of showers after midnight.
Thu..Wind nw 15 to 25 kt...becoming W 10 to 15 kt in the afternoon. Wind waves 4 ft. SWell W 6 to 9 ft at 8 seconds.
Thu night..Wind W 10 kt with gusts to 15 kt in the evening... Becoming variable less than 10 kt. Wind waves 2 ft or less. SWell W 4 to 7 ft at 8 seconds.
Fri..Wind variable less than 10 kt. Wind waves 2 ft or less. SWell W 3 to 5 ft at 9 seconds.
Fri night..Wind nw 10 to 15 kt. Wind waves 3 ft in the evening...becoming 2 ft or less. SWell W 3 to 4 ft at 11 seconds.
Sat..Wind nw 10 kt. Gusts to 15 kt in the afternoon. Wind waves 2 ft or less. SWell W 2 to 4 ft. Chance of showers.
Sat night..Wind W 10 to 15 kt. Wind waves 3 ft in the evening... Becoming 2 ft or less. SWell W 4 to 6 ft.
Sun..Wind W 10 kt. Gusts to 15 kt in the afternoon. Wind waves 2 ft or less. SWell W 4 to 6 ft.
Sun night..Wind W 10 to 15 kt with gusts to 20 kt. Wind waves 3 ft. SWell W 4 to 6 ft.
Mon..Wind W 10 to 15 kt with gusts to 20 kt. Wind waves 2 ft or less...becoming 3 to 4 ft in the afternoon. SWell W 4 to 5 ft.
Mon night..Wind W 15 to 20 kt with gusts to 25 kt. Wind waves 5 ft. SWell W 4 to 6 ft.
PZZ700 130 Pm Pdt Wed Mar 22 2017
Synopsis for far southern california coast.. At 1 pm...a 1026 mb high was 1000 nm west-southwest of san diego...and a 1004 mb low was over east-central nevada. A trough will bring periods of showers through early Thursday along with a slight chance of Thunderstorms this afternoon and evening. Strong northwest winds are expected tonight through Thursday afternoon behind a cold front. Weaker onshore flow will occur Friday and then strengthen to moderate strength this weekend. Winds may pick up further on Monday. Another weak storm system may bring light showers on Saturday.

7 Day Forecast for Marine Location Near Palm Desert, CA
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location: 33.74, -116.36     debug


Area Discussion for - San Diego, CA
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Fxus66 ksgx 222052
afdsgx
area forecast discussion
national weather service san diego ca
200 pm pdt Wed mar 22 2017

Synopsis
Precipitation will increase for awhile this evening as the trough
moves overhead and combines with instability, and there is a slight
chance of a thunderstorm this afternoon and evening. Areas of fog
will continue in the mountains tonight, and gusty winds will
continue on the desert mountain slopes through Thursday. Fair
weather will return by Thursday afternoon and continue Friday, then
a weak trough of low pressure could bring a few showers Saturday.

Another system could bring a few showers next Monday or Tuesday.

Temperatures will average a little below normal through early next
week.

Discussion For extreme southwestern california including orange...

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

a few showers continued this afternoon, especially in san bernardino
county. Some lightning was upstream over santa barbara county as
well as about 300 miles wsw of san diego. As cold air moves in from
the west, instability will increase with surface based CAPE values
of up to 800 j/kg, so there could be an isolated thunderstorm over
our forecast area this afternoon/evening. The main vort MAX with the
low pressure trough will mostly go into northern baja, and its
southerly position will be the main reason for only modest precip
amounts here, mostly under 1/10 inch since Tuesday except local
amounts over one inch in the san bernardino county mountains. The
main trough will move through this evening, and enough moisture and
dynamics, including a 110-kt jet just to our south, should bring a
little increase in the precip, with san diego county likely
receiving more than areas further north. Precip should gradually end
late tonight and early Thursday. Additional precip amounts should be
mostly less than 1/4 inch west of the mountains, but with variable
amounts due to convection, and locally over one-half inch in the
mountains. Snow levels will lower to around 6000 feet tonight, but
only 1-2 inches will occur especially with the northern higher
mountains having less available moisture. Winds should gust around
50 mph on the normally wind-favored desert mountain slopes at times
through Thursday.

The trough will move to the southern rockies by Thursday night with
a weak ridge moving through so-cal. An open trough will move through
california Saturday with most of the moisture staying to our north,
so only light showers should occur here. After weak ridging again
Sunday, models are showing another trough from the northwest around
Monday or Tuesday, and a few showers were put in the afternoon
forecast package for Monday. GFS is much wetter than ecmwf. The
ridging will likely stay over the east pacific and not build into
california through at least the middle of next week, so temperatures
should stay mostly a little below normal through mid-week,
especially daytime maximums.

Aviation
222010z... Bkn cloud decks within the 1500-10000 ft msl layer, local
vis 5 sm, and isolated showers over and west of the mountains, sct
clouds in the 5000-10000 ft msl layer and p6sm vis in the deserts,
and mountain obscuration of coastal mountain slopes will continue
through 23/0000 utc. 23/0000-0900 utc, an increase in shower
activity over and west of the mountains and in the high deserts will
occur, with bkn-ovc cloud decks within the 1500-10000 ft msl layer
and areas of 2-5 sm vis over and west of the mountains, sct-bkn
clouds in the 5000-10000 ft msl layer and mainly p6sm vis in the
deserts, and mountain obscuration of coastal mountain slopes.

There's a chance that vis/cigs could reach down to 1 sm/500-700 ft
agl in heavier showers.

There is also a slight chance of thunderstorms through 23/0600 utc,
with CB tops to 25000 ft msl.

After 2100 utc, west winds 20-30 kt with gusts 35-45 kt along the
ridges and desert slopes with mod-stg up/downdrafts and llws over
and east of the mountains.

Marine
A low pressure trough moving through the region will bring scattered
showers through tonight, with isolated thunderstorms possible this
afternoon and evening. Winds will be on the increase and become
hazardous to small craft out of the west-northwest tonight at speeds
of 20 to 25 knots with gusts to around 30 knots. In addition to the
winds, seas will rise to near or above 10 feet over portions of the
coastal waters late tonight. A small craft advisory GOES into effect
for the coastal waters late this evening and continues through
Thursday afternoon. Winds and seas will diminish by Thursday evening.

Beaches
There is a slight chance for thunderstorms at the beaches this
afternoon and evening, resulting in a slight risk of lightning for
beach goers/swimmers.

Sgx watches/warnings/advisories
Ca... None.

Pz... Small craft advisory through 5 pm pdt Thursday for coastal
waters from san mateo point to the mexican border and out to 30 nm-
waters from san mateo point to the mexican border extending 30 to 60
nm out including san clemente island.

Public... Maxwell
aviation/marine/beaches... Harrison


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
46242 - Camp Pendleton Nearshore, CA (043) 68 mi117 min 62°F3 ft
46224 - Oceanside Offshore, CA (045) 70 mi55 min 62°F4 ft

Wind History for La Jolla, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Palm Springs Regional Airport, CA10 mi32 minWNW 810.00 miFair74°F37°F27%1009.9 hPa
Palm Springs, Jacqueline Cochran Regional Airport, CA12 mi33 minWNW 910.00 miFair79°F37°F22%1008.7 hPa

Wind History from PSP (wind in knots)
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Last 24hrN15
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NW15NW10NW13
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NW13NW14W5NW6W8SW3S5S6CalmCalmS3CalmCalmN12
G17
4--NW6NW20
G28
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1 day agoNW16
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NW14NW10NW8NW14NW7CalmSE4SE4N7NE34E656Calm6N15
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2 days agoNW15
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NW10NW12NW9N6NW3NW7CalmSE3NW9S4SE5CalmCalmCalmSE4S3CalmCalmN14NW11
G18
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G18
NW13NW13

Tide / Current Tables for San Clemente, California
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San Clemente
Click for Map
Wed -- 03:11 AM PDT     Moonrise
Wed -- 05:44 AM PDT     4.20 feet High Tide
Wed -- 06:51 AM PDT     Sunrise
Wed -- 01:03 PM PDT     0.26 feet Low Tide
Wed -- 01:53 PM PDT     Moonset
Wed -- 07:03 PM PDT     Sunset
Wed -- 07:39 PM PDT     3.54 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
2.42.52.93.33.84.14.23.93.42.61.810.50.30.411.72.53.13.53.53.32.92.4

Tide / Current Tables for La Jolla (Scripps Institution Wharf), California
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La Jolla (Scripps Institution Wharf)
Click for Map
Wed -- 03:09 AM PDT     Moonrise
Wed -- 05:44 AM PDT     4.16 feet High Tide
Wed -- 06:49 AM PDT     Sunrise
Wed -- 01:02 PM PDT     0.21 feet Low Tide
Wed -- 01:52 PM PDT     Moonset
Wed -- 07:02 PM PDT     Sunset
Wed -- 07:46 PM PDT     3.49 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
2.52.62.93.33.84.14.23.93.42.61.710.40.20.40.91.62.433.43.53.32.92.5

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 San Diego, 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.