Thursday, March30, 2017 L-36.com


Marine Weather and Tides
Indio, 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 6:33AMSunset 7:05PM Wednesday March 29, 2017 11:46 PM PDT (06:46 UTC) Moonrise 7:53AMMoonset 9:06PM Illumination 8% Phase: Waxing Crescent; Moon at 3 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- 124 Pm Pdt Wed Mar 29 2017
Tonight..Wind sw 10 kt with gusts to 15 kt in the evening... Becoming variable less than 10 kt. Wind waves 2 ft or less. SWell W 2 to 4 ft at 15 seconds.
Thu..Wind sw 10 to 15 kt. Wind waves 2 ft or less. SWell W 3 to 5 ft at 14 seconds.
Thu night..Wind sw 10 to 15 kt...becoming se after midnight. Gusts to 20 kt. Wind waves 3 ft in the evening...becoming 2 ft or less. SWell W 4 to 7 ft at 12 seconds.
Fri..Wind se 10 kt...becoming W in the afternoon. Gusts to 20 kt. Wind waves 2 ft or less... Becoming 3 ft in the afternoon. SWell W 5 to 7 ft at 11 seconds.
Fri night..Wind nw 10 to 15 kt with gusts to 20 kt in the evening...becoming variable less than 10 kt. Wind waves 3 ft in the evening...becoming 2 ft or less. SWell W 4 to 6 ft at 12 seconds.
Sat..Wind variable less than 10 kt. Wind waves 2 ft or less. SWell W 3 to 5 ft.
Sat night..Wind W 10 kt in the evening...becoming variable less than 10 kt. Wind waves 2 ft or less. SWell W 3 to 4 ft.
Sun..Wind variable less than 10 kt...becoming W 10 kt in the afternoon. Wind waves 2 ft or less. SWell W 3 to 4 ft.
Sun night..Wind W 10 kt in the evening...becoming variable less than 10 kt. Wind waves 2 ft or less. SWell W 3 to 5 ft.
Mon..Wind variable less than 10 kt...becoming W 10 kt with gusts to 15 kt in the afternoon. Wind waves 2 ft or less. SWell W 4 to 7 ft.
Mon night..Wind W 10 to 15 kt. Gusts to 20 kt in the evening. Wind waves 3 ft in the evening...becoming 2 ft or less. SWell W 5 to 7 ft.
PZZ700 124 Pm Pdt Wed Mar 29 2017
Synopsis for far southern california coast.. At 1 pm...a 1030 mb high was 900 nm west of san diego and a 1015 mb low was over imperial county. A coastal eddy is forecast to develop tonight...bringing light southerly winds and a return of the marine layer fog and low clouds. Stronger northwest winds and higher seas are expected late Thursday into Friday. Winds will weaken over the weekend but seas will remain elevated.

7 Day Forecast for Marine Location Near Indio, CA
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location: 33.73, -116.24     debug


Area Discussion for - San Diego, CA
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Fxus66 ksgx 300428
afdsgx
area forecast discussion
national weather service san diego ca
928 pm pdt Wed mar 29 2017

Strong to locally damaging winds mountains-deserts Thursday
afternoon and evening...

Synopsis
High pressure aloft will drift east tonight. On Thursday a deep
trough moving across the great basin will bring strong and locally
damaging west winds to the mountains and deserts. Cooler Friday
behind the trough with winds shift to the northeast. High pressure
rebuilding over the region Saturday will bring sunny and warm
this weekend. Cooler early next week as another trough moves in
from the northwest.

Discussion For extreme southwestern california including orange...

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

Update - high wind warning issued for mountains/deserts...

upgraded to a high wind warning for the mountains to the desert
floor. The pressure gradient will really tighten up and result in
strong to locally damaging winds across the mountains to the
deserts Thursday afternoon and evening.

The strongest winds are expected to occur across the high desert
and the mountain tops/desert slopes. High sustained winds are
possible across the apple and lucerne valleys and points north.

Gfs MOS has sustained wind to 34 knots at victorville thu
afternoon. Hazardous travel from strong cross-winds and localized
severe visibility restrictions is expected along interstate 15 in
the high desert.

Localized damaging wind is possible across the coachella valley
and the san diego county deserts, so included these areas in the
high wind warning. Cross sections show mountain waves developing
with surfacing and rotoring. Localized gusts to 60 mph will occur
as mountain waves surface.

Timing of strongest winds is forecast to be 2-6 pm Thursday.

/gregoria

Previous discussion (issued at 229 pm pdt Wed mar 29 2017)...

high pressure aloft brought sunny, warm weather Wednesday. Highs
were in the 80s in most areas west of the mountains. Mountain highs
in the 60s and 70s, and the lower deserts were in the lower 90s.

Records are a little out of reach today.

The ridge axis shifts east tonight and we will transition to a
progressively stronger onshore flow pattern Thursday. A deep upper
trough will move into norcal tonight and then across the great
basin/california interior on Thursday. The core of the strongest
winds in socal will be Thursday afternoon through Thursday evening,
a relatively short duration onshore wind event. Pressure gradients
ramp up Thursday afternoon and peak Thursday evening with a 994 mb
surface low over southern utah. Strong gradient winds over the high
deserts from 20-30 mph with gust to 50 mph+. Mountain waves are a
near certainty with an inversion near 700 mb. West winds will
surface down the eastern slopes and into the lower deserts, but the
magnitude of the wind is still in question. The WRF is strongest
with the winds, as usual, and support a low end wind warning. But
the cansac and nam3 are weaker and support a wind advisory. Either
way, there will be a 6-12 hour period of gusty west winds between
noon-10 pm Thursday. Surface winds of 20-30 mph are likely with peak
gusts of 50-60 mph on the slopes and some parts of the desert floor.

Rotors are likely in the coachella valley. A high wind watch remain
in effect for most of the mountain and desert areas Thursday
afternoon in Thursday night.

The winds shift north and weaken Thursday night as the trough moves
over northern az, setting up a brief period of offshore flow through
midday Friday. The north-south alignment favors gusty winds in the
cajon pass, parts of the ie and the santa ana mountains. The
northern part of the coachella valley will also see gust north
winds. The remainder of riverside county and most of san diego
county will not be experience strong winds.

An sizable coastal eddy will spin up over the coastal waters tonight
which could generate low clouds or fog in the coastal zones tomorrow
morning.

Weekend outlook: high pressure aloft fills in behind the trough with
fair warm weather Saturday and Sunday. Another trough will move
across the great basin Monday and Tuesday for minor cooling. This is
a weaker inside slider that the upcoming Thursday event, and the
winds won't be as strong in the mtns and deserts.

Aviation
300415z... Coast/valleys... Mostly clear skies and unrestricted
vis will prevail through at least 11z thu. Low stratus/fog will
develop along the coast after 11z Thu with the possibility of a cig
at ksan, kcrq and ksna between around 12z and 16z. Clouds bases
could start out as low as around 400 ft msl but rapidly increase to
700-1000 ft msl around 16z with local vis below 1 mile in fog. Vis
of 1 mile or less could briefly affect ksan, kcrq and ksna though
confidence is low. Sct-local bkn conditions will occur after 16z thu
near the coast, with stratus spreading into some valleys thu
evening.

Mountains and deserts... Mostly sct clouds above 20000 ft msl will
continue through Thu evening. Gusty west winds will develop thu,
with areas of winds 25-35 kt gusts 40-50 kt after 20z Thu near
mountain crests, desert mountain slopes and some lower elevation
desert locations. Some strong winds could occur at kpsp and ktrm,
with peak winds likely to be 23z Thu to 04z fri, though kpsp could
have a rotor at times with lighter easterly winds. Llws and strong
up/downdrafts will also occur after 20z thu, and surface vis will
locally be below 1 mile in blowing dust/sand in the deserts.

Marine
No hazardous marine weather is expected through Thursday mid-
afternoon. NW winds will increase to 15-25 kt late Thursday
afternoon through Friday. Strongest winds will likely be found 10
miles offshore and beyond Thursday evening. Highest combined seas
are anticipated overnight Thursday into Friday, with 4-7 ft seas
inside of 30 miles and 7-11 ft near and south of san clemente
island. Winds and swell should decrease over the weekend, before
increasing again early next week.

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

Sgx watches/warnings/advisories
Ca... High wind warning from noon to 11 pm pdt Thursday for apple and
lucerne valleys-coachella valley-riverside county mountains-
san bernardino county mountains-san diego county deserts-
san diego county mountains-san gorgonio pass near banning.

Pz... None.

Public... Gregoria (update)/moede (prev discussion)
aviation/marine... Albright


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
46242 - Camp Pendleton Nearshore, CA (043) 73 mi79 min 61°F3 ft
46224 - Oceanside Offshore, CA (045) 76 mi47 min 63°F3 ft

Wind History for La Jolla, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Palm Springs, Jacqueline Cochran Regional Airport, CA7 mi55 minNW 310.00 miFair61°F37°F43%1012.7 hPa
Palm Springs Regional Airport, CA16 mi54 minWNW 410.00 miFair79°F32°F18%1013.9 hPa

Wind History from TRM (wind in knots)
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Last 24hrNE4N75NW9CalmNW53CalmCalmCalmSE34N846NW3NW3CalmSE7SE6CalmNW6N4NW3
1 day agoW12NW7NW9N7NW12
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W12NW10NW10NW9NW10N13
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W9NW11NW6NW9N8W7W7E3N3
2 days agoN10NW10NW16
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NW13NW10NW8NW10N4NW8NW13NW18
G24
--NW12NW10
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G27
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G23
NW9NW11NW11

Tide / Current Tables for San Clemente, California
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San Clemente
Click for Map
Thu -- 05:34 AM PDT     -0.55 feet Low Tide
Thu -- 06:40 AM PDT     Sunrise
Thu -- 08:42 AM PDT     Moonrise
Thu -- 11:41 AM PDT     4.43 feet High Tide
Thu -- 05:27 PM PDT     0.64 feet Low Tide
Thu -- 07:09 PM PDT     Sunset
Thu -- 10:19 PM PDT     Moonset
Thu -- 11:39 PM PDT     5.55 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
5.24.32.91.50.3-0.4-0.50.11.22.53.64.34.443.12.11.20.70.71.32.43.64.75.4

Tide / Current Tables for La Jolla, Scripps Pier, California
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La Jolla
Click for Map
Thu -- 05:28 AM PDT     -0.42 feet Low Tide
Thu -- 06:39 AM PDT     Sunrise
Thu -- 08:41 AM PDT     Moonrise
Thu -- 11:37 AM PDT     4.29 feet High Tide
Thu -- 05:18 PM PDT     0.70 feet Low Tide
Thu -- 07:08 PM PDT     Sunset
Thu -- 10:16 PM PDT     Moonset
Thu -- 11:35 PM PDT     5.48 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
5.14.22.81.40.3-0.3-0.30.31.32.53.64.24.33.82.921.20.70.81.52.53.74.75.4

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 (2,6,7,8)
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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.