Tuesday, September26, 2017 L-36.com

Marine Weather and Tides
Desert Center, 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 6:34AMSunset 6:35PM Tuesday September 26, 2017 5:49 AM PDT (12:49 UTC) Moonrise 12:28PMMoonset 11:03PM Illumination 33% Phase: Waxing Crescent; Moon at 6 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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7 Day Forecast for Marine Location Near Desert Center, CA
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location: 33.86, -115.76     debug

Area Discussion for - Phoenix, AZ
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Fxus65 kpsr 261208 aaa
area forecast discussion... Updated
national weather service phoenix az
510 am mst Tue sep 26 2017

Update Updated aviation and fire weather discussions.

Under sunny skies, temperatures will slowly warm over the next few
days though readings will remain slightly below average. An area of
low pressure may pull moisture back into eastern arizona by the
middle and end of the week supporting some late season showers and
storms mainly in the higher elevations. Warmer temperatures will
materialize by the end of the work week and persist through early
next week &&

A broad upper level trough is currently situated over the west
coast with ridging just downstream centered over the eastern half
of the united states. This is bringing below average temperatures
to many locations on the west coast while just the opposite is
being observed in the eastern us. Only a few cirrus clouds can be
seen on satellite this morning thanks to the extremely dry air
overhead. The latest 00z sounding from tucson shows pwats of only
0.28 inches, just above yesterday's record minimum of 0.22! With
the lack of water vapor, temperatures have again cooled quickly
with morning lows forecast to be near to slightly above what was
observed Monday morning.

Heading into this afternoon, another below average day is expected
as 850 mb temperature warm just slightly over yesterday.

Subsequently, many locations will only see a degree, maybe two
of warming from Monday. Other than a few more high clouds, a very
similar day is expected.

By midweek, moisture gradually seeps in from the east as energy
shears off from the aforementioned trough and develops into an
upper level low near the ca az nv border. Some hi-res models
show this more moist air nearing maricopa county by late
Wednesday, but is positioned farther east than what models were
indicating 24 hours ago. Nonetheless, gila county looks to have a
shot at some showers and storms come Wednesday afternoon although
activity in phoenix is looking rather slim (<10%), especially
given the southwest steering flow that will quickly push off any
storms to the north and east. Locations west of the phoenix metro
have virtually no chance of precipitation.

Isolated afternoon storms in eastern gila county look to persist
through at least the end of the week until drier air moves in over
the weekend. All the while, temperatures will gradually warm and
approach the century mark in the lower deserts come Saturday as
h5 heights gradually recover from the exiting upper level low.

By Sunday, models show a passing trough to our north that may
bringing subtle variations to our temperatures although nothing
that deviates far from climatology.

South-central arizona including kphx, kiwa, and ksdl:
expect rather light winds next 24 hours following typical diurnal
tendencies - morning east wind becoming west after 20z, returning to
the east well after midnight. Variable amounts of high clouds,
mainly few-sct with some mainly thin bkn decks at times, all above
20k feet. No aviation concerns at any terminal for at least 24 hours.

Southeast california southwest arizona including kipl and kblh:
expect relatively light winds next 24 hours, mostly less than 10kt,
favoring the north at kblh and the west northwest at kipl. Few-sct
high cloud decks at times. No aviation concerns for at least 24

Aviation discussion not updated for amended tafs.

Fire weather
Thursday through Monday: a large area of low pressure will dominate
the weather pattern through Thursday, keeping high temperatures
below seasonal normals, and drawing a bit of moisture northward and
into the higher terrain of eastern arizona, allowing for a slight
chance of afternoon and evening thunderstorms over higher terrain
areas east of phoenix. The low will weaken Friday into the weekend
allowing high temperatures to climb above seasonal normals with
hotter lower deserts reaching around 100 by Saturday. Humidity
levels will stay relatively low through the period, mostly below 15
percent over the deserts and below 30 percent in the higher terrain.

Storm chances will diminish Friday into Saturday, with just isolated
storms possible over higher terrain areas east of globe; by Sunday
drier air will move in mostly eliminating any threat for convection.

Winds each day will stay relatively light, favoring north to west
during the afternoon hours, with stronger winds possibly Sunday,
becoming breezy from the southwest during the afternoon on that day.

Spotter information statement
Spotters should follow standard reporting procedures.

Psr watches warnings advisories
Az... None.

Ca... None.

Visit us on facebook, twitter, and at weather.Gov phoenix
discussion... Wilson
aviation... Cb
fire weather... Cb

Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
46242 - Camp Pendleton Nearshore, CA (043) 99 mi82 min 67°F2 ft

Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Palm Springs, Jacqueline Cochran Regional Airport, CA27 mi58 minN 710.00 miFair65°F30°F28%1007.6 hPa

Wind History from TRM (wind in knots)
Last 24hrNW4N5N5NW6NW10NW12
2 days agoNW10NW11NW12NW14NW12NW9NW10SW4--NW7CalmW11W5NW6N3NW9NW10NW9NW9NW8NE4NE7N7N6

Tide / Current Tables for
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Tide / Current Tables for
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Weather Map and Satellite Images
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Weather Map
IR Satellite Image from GEOS

GOES Local Image of Southwest    EDIT

Wind Forecast for Phoenix, AZ (8,2,3,4)
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Ground Weather Radar Station San Diego, CA
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weather_mapweather_map weather_map

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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.