Sunday, July23, 2017 L-36.com


Marine Weather and Tides
Palm Springs, 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 5:51AMSunset 7:53PM Sunday July 23, 2017 1:39 AM PDT (08:39 UTC) Moonrise 6:10AMMoonset 8:16PM Illumination 0% Phase: New Moon; Moon at 29 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
    EDIT      (on/off)   Help
PZZ750 Coastal Waters From San Mateo Point To The Mexican Border And Out To 30 Nm- 1244 Pm Pdt Sat Jul 22 2017
Tonight..Wind variable less than 10 kt. Wind waves 2 ft or less. Mixed swell W 2 to 3 ft at 8 seconds and S 2 ft at 14 seconds.
Sun..Wind variable less than 10 kt...becoming sw 10 kt in the afternoon. Wind waves 2 ft or less. Mixed swell W 2 ft at 8 seconds and S 2 ft at 13 seconds.
Sun night..Wind sw 10 kt in the evening...becoming variable less than 10 kt. Wind waves 2 ft or less. Mixed swell W 2 ft at 8 seconds and S 2 ft at 12 seconds.
Mon..Wind variable less than 10 kt...becoming sw 10 kt in the afternoon. Wind waves 2 ft or less. Mixed swell W 1 to 2 ft at 8 seconds and S 2 ft at 12 seconds. Slight chance of tstms.
Mon night..Wind sw 10 kt in the evening...becoming variable less than 10 kt. Wind waves 2 ft or less. Mixed swell W 1 to 2 ft at 8 seconds and S 2 ft at 12 seconds. Slight chance of tstms in the evening.
Tue..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 1 to 2 ft and S 2 ft.
Tue night..Wind W 10 kt in the evening...becoming variable less than 10 kt. Wind waves 2 ft or less. Mixed swell W 1 to 2 ft and S 2 ft.
Wed..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 ft and S 2 ft.
Wed 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. Mixed swell W 2 ft and S 2 ft.
Thu..Wind W 10 kt. Gusts to 15 kt in the afternoon. Wind waves 2 ft or less. Mixed swell W 2 ft and S 2 ft.
Thu night..Wind W 10 kt in the evening...becoming variable less than 10 kt. Wind waves 2 ft or less. Mixed swell W 2 ft and S 1 to 3 ft.
PZZ700 1244 Pm Pdt Sat Jul 22 2017
Synopsis for the far southern california coast.. At 1 pm pdt, a 1027 mb high was about 1100 nm west of point conception and a 1006 mb low was near needles. An upper level disturbance may bring a few Thunderstorms to the coastal waters Sunday night and Monday. Weak onshore flow will continue through Thursday with a weak coastal eddy at times.

7 Day Forecast for Marine Location Near Palm Springs, CA
   Hourly   EDIT   Help
location: 33.76, -116.5     debug


Area Discussion for - San Diego, CA
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxus66 ksgx 230425
afdsgx
area forecast discussion
national weather service san diego ca
900 pm pdt Sat jul 22 2017

Synopsis
Warm again on Sunday with isolated afternoon thunderstorms over the
mountains. Increasing monsoonal flow Monday will bring higher
humidity and a chance for more widespread showers and thunderstorms.

The brief monsoon surge weakens Tuesday, but thunderstorms may still
form over the mountains. Dry and seasonally hot Wednesday through
Friday.

Discussion For extreme southwestern california including orange...

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

moisture is slowly starting to work its way into southern california
from the east this evening. Dewpoints this evening are 5-10 degrees
higher than 24 hours ago in the lower deserts, and 10-20 degrees
higher in the san riv sbd mountains. Yesterday evening the pw on the
nkx sounding was 0.90", and it was up to 1.29" this evening.

The IR satellite loop shows convection over az moving west toward
imperial county, and that moisture will move into the san diego
forecast area Sunday. Model pw of 2.00" is forecast over the lower
deserts Sunday afternoon from a surge of moist easterly flow in the
500-700 mb layer. An upstream easterly wave is not readily apparent
in the water vapor loop this evening, so Sunday's convection will be
primarily driven by thermodynamic instability and orographics. And
perhaps a surface convergence boundary over the mtns between the
onshore afternoon sea breeze and southeast winds over the deserts.

Any storms that form over the mtns could generate brief heavy rain,
but the flash flood threat will be minimized fast cell movement in
the 15-20 kt easterly midlevel flow.

On Monday the pw maxes out at 2" west of the mountains and 2.5" in
the deserts, and 1.5" in the mountains. Wind aloft will be lighter,
and the slower moving storms combined with greater available
moisture and instability will increasing the flash flood potential.

*from previous discussion*
Monday looks to be the most active day, as the weak easterly wave
approaches. The various hires model runs have waffled back and forth
bringing precip to the coast and beyond, and the ECMWF gfs models
are handling the track of the wave differently. Instability
parameters have been weak, but time height x-sections show quite a
dewpoint surge in the 500-300mb layer on mon, which could
destabilize the atmosphere enough for elevated convection. The
models have backed off on the rh in the 200-400mb layer, which
favors more heating on the mts to drive deeper diurnal convection
there in the afternoon. With all the uncertainty, low pops are in
the forecast all the way to the coastal waters on Monday, with
greater chances near the mts. Any heavy precip would most likley be
confined to the mts foothills where the risk of flash flooding will
be greatest.

By Tuesday... Moisture is decreasing and the wave has been absorbed
into the south flow aloft. Lingering moisture and daytime heating
could still ignite afternoon storms over the mts deserts. This is
supported by the 12z wrfems, which is GFS based, and the ECMWF looks
favorable as well, so pops continue into Tue evening.

Wednesday through Friday... The upper high builds back toward the
four corners region and persists for the remainder of the week. Flow
aloft over socal is southerly and drier initially, then gradually
turns SE and moistens aloft. This should bring periods of high
clouds, but stability, and the lack of mid-level moisture should
keep a lid on any thunderstorm development until next weekend at the
earliest. Onshore flow prevails as well this period, so the marine
layer should keep coastal areas moderate while inland areas are
seasonably hot.

Aviation
230400z... Coast valleys... Areas of stratus will gradually develop
along the coast through 09z and spread up to 15 miles inland. Bases
will be 1000-1500 ft msl with tops to 1600 ft msl. Local vis 2-4
miles will be possible in the valleys 10z-16z. Most areas will clear
by 16z Sunday, with clouds increasing above 15000 ft msl. Stratus
will likely be only patchy Sunday night, and there is a slight
chance of thunderstorms late Sunday night.

Mountains deserts... Mostly clear skies with unrestricted visibility
will continue through Sunday morning. Clouds will increase above
10000 ft msl Sunday with a slight chance of thunderstorms over the
mountain crests from l35 south to the mexican border Sunday
afternoon with bases 9000 ft msl and tops to 35000 ft msl with
strong up downdrafts and local gusty surface winds. A few
thunderstorms could occur Sunday night in the mountains and deserts.

Marine
There is a slight chance of thunderstorms late Sunday night through
Monday. Cloud-to-water lightning will be the primary threat. No
hazardous marine weather is expected Monday night through Thursday.

Beaches
High tides will be near 7 ft this evening and Sunday evening. This
could result in minor tidal overflow in low-lying beach areas, and
therefore a beach hazard statement remains in effect through Sunday.

Surf heights will mostly be 1-3 ft, and this should limit the
potential for tidal overflow to some degree.

There is a slight chance of thunderstorms at the beaches late Sunday
night through Monday, with the best thunderstorm chances Monday
morning.

Skywarn
Skywarn activation won't be needed Sunday, but may be needed Monday.

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

Pz... None.

Public... Moede
aviation marine beaches... Maxwell


Weather Reporting Stations
   EDIT       (on/off)   Help   NOTE: Click on distance to see the station location on a map
Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
46242 - Camp Pendleton Nearshore, CA (043) 62 mi71 min 76°F2 ft
46224 - Oceanside Offshore, CA (045) 65 mi39 min 75°F2 ft

Wind History for La Jolla, CA
(wind in knots)    EDIT      (on/off)   Help
2
AM
3
AM
4
AM
5
AM
6
AM
7
AM
8
AM
9
AM
10
AM
11
AM
12
PM
1
PM
2
PM
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
9
PM
10
PM
11
PM
12
AM
1
AM
Last
24hr
SE3
S3
S4
S4
S4
SE3
S2
W4
W5
SW8
W8
W7
SW6
W8
W7
W7
G10
SW8
W7
SW5
SW5
SW4
S2
SE2
S2
1 day
ago
SE4
SE2
SE3
SW1
S3
E3
W1
SW7
W8
W10
SW10
W7
W5
W5
W4
W5
NW5
W4
W3
NW2
SW2
SE4
SE4
--
2 days
ago
S1
S3
S2
SW4
W4
W6
SW7
SW7
W7
W5
SW7
W4
G7
W5
W8
SW8
SW5
SW4
S4
S3
S3
SE3

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Palm Springs Regional Airport, CA6 mi46 minN 610.00 miFair93°F59°F32%1008 hPa
Palm Springs, Jacqueline Cochran Regional Airport, CA19 mi47 minSSW 510.00 miFair88°F69°F54%1006.6 hPa

Wind History from PSP (wind in knots)
2
AM
3
AM
4
AM
5
AM
6
AM
7
AM
8
AM
9
AM
10
AM
11
AM
12
PM
1
PM
2
PM
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
9
PM
10
PM
11
PM
12
AM
1
AM
Last 24hrN4CalmW3SE345CalmCalm465E5SE9SE8SE9E6NE4N8
G14
CalmW3NW11NW13CalmN6
1 day agoCalmCalmS4CalmSE4CalmCalm3CalmCalmCalm55665W12
G20
NW13NW15
G21
NW14NW9CalmCalmCalm
2 days agoW3CalmCalm3W3CalmCalmCalmCalm344E8E10SE8SE86NW15
G24
NW18
G23
NW19W17
G25
NW11NW6Calm

Tide / Current Tables for San Clemente, California
   EDIT   RT Ports Option   Weekend mode (on/off)   (on/off)   Help   One Week of Data
San Clemente
Click for Map
Sun -- 02:47 AM PDT     New Moon
Sun -- 04:08 AM PDT     -1.51 feet Low Tide
Sun -- 05:57 AM PDT     Sunrise
Sun -- 06:15 AM PDT     Moonrise
Sun -- 10:27 AM PDT     4.62 feet High Tide
Sun -- 03:41 PM PDT     1.33 feet Low Tide
Sun -- 07:56 PM PDT     Sunset
Sun -- 08:19 PM PDT     Moonset
Sun -- 09:49 PM PDT     6.88 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
3.920.3-1-1.5-1.2-0.21.22.73.94.64.53.932.11.51.41.934.35.76.66.96.3

Tide / Current Tables for La Jolla, Scripps Pier, California
   EDIT      (on/off)   Help   One Week of Data
La Jolla
Click for Map
Sun -- 02:47 AM PDT     New Moon
Sun -- 04:04 AM PDT     -1.32 feet Low Tide
Sun -- 05:56 AM PDT     Sunrise
Sun -- 06:15 AM PDT     Moonrise
Sun -- 10:28 AM PDT     4.43 feet High Tide
Sun -- 03:30 PM PDT     1.61 feet Low Tide
Sun -- 07:53 PM PDT     Sunset
Sun -- 08:17 PM PDT     Moonset
Sun -- 09:43 PM PDT     6.87 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
3.820.3-0.9-1.3-1-01.32.73.84.44.33.832.21.71.72.33.34.65.96.76.86.3

Weather Map and Satellite Images
       (on/off)   Help
Weather Map
wmap_P
IR Satellite Image from GEOS
west_satellite

GOES Local Image of Southwest    EDIT
Geos

Wind Forecast for San Diego, CA (4,6,7,8)
      (on/off)   Help

Ground Weather Radar Station San Diego, CA
   (on/off)   Help
weather_mapweather_map weather_map

Ad by Google

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.