Saturday, February24, 2018 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 6:16AMSunset 5:38PM Saturday February 24, 2018 7:48 PM PST (03:48 UTC) Moonrise 1:13PMMoonset 2:34AM Illumination 74% Phase: Waxing Gibbous; Moon at 10 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 242131
afdpsr
area forecast discussion
national weather service phoenix az
231 pm mst Sat feb 24 2018

Synopsis
Cool conditions will continue to the rest of the weekend. A
slight warming trend is expected Monday before another weather
system moves into the area early next week bringing an
opportunity for showers along with cooler temperatures.

Discussion
A clear and cool day across the deserts with temperatures running
in the upper 50s to low 60s on the lower elevations early this
afternoon. To our northwest, a short wave is moving southeastward
through the great basin. It will brush northern arizona tonight
with pops limited to areas north of i-40. In the wake of the
system, there will be some minor northerly breeziness on Sunday
over near the lower colorado river valley with light winds
elsewhere in our forecast area. Not anticipating any cooling. In
fact, highs will be a little bit warmer (more noticeably over our
western areas) after another chilly morning.

A much more impactful system moves through during the first half
of the next workweek. It will start off as a short wave being
ejected from a system over alaska, track southeastward, and deepen
into a closed low centered over southern california by Tuesday.

With much of the system deepening over land (as opposed to ocean)
as well as the positive tilt orientation to the upper trough,
moisture content will not be overwhelming. This is reflected in gefs
ivt having modest values. Models agree on a distinct frontal band
moving across our area followed by the center of the upper low.

So, vertical motions will be sufficient to get showers going
(mainly east of the lower colorado river valley). Timing will be
Tuesday Tuesday night. Made some upward adjustments to pops over
south-central in light of latest GEFS as well as better agreement
between GFS and ecmwf. Not looking at enough QPF for flooding -
but more of a gentle beneficial rain. One caveat is that there
will be some very modest instability in the vicinity of the
frontal band (less so with the upper low). Have held off for now
on adding slight chance of thunderstorms given how modest CAPE is.

Naturally, temps drop as well.

For the latter part of the week, GFS and ECMWF are in somewhat
better agreement, and although ensemble member spread remains high,
the members are not quite as chaotic as they were 24 hours ago.

Basically, we should see a very large upper low develop over the
western conus, but the center will remain well to our
north northwest and as it moves east, arizona will remain on the far
southern flank under somewhat dry westerly flow aloft. Pops will
stay on the low side for Thursday and Friday, generally single
digits or slight chance numbers with skies to be partly cloudy. High
temperatures will rise gradually with warmer deserts climbing into
the low 70s by Friday.

Aviation
South-central arizona including kphx, kiwa, and ksdl; and
southeast california southwest arizona including kipl and kblh:
no major aviation concerns through Sunday afternoon under clear
skies. A weakening pressure gradient will favor W NW winds today
though periods of variability are likely towards sunset. Eventually,
the gradient will loosen such that the typical nocturnal drainage
winds will finally take hold by late evening.

Aviation discussion not updated for amended tafs.

Fire weather
Monday through Friday:
near normal temperatures and dry conditions under high pressure
is anticipated for Monday. A weather system will move through the
region bringing good chances of wetting rains on Tuesday with
chances lingering into Wednesday. A gradual drying and warming
trend under increasing high pressure will move in late in the
week. Breezy conditions will affect the area Monday and Tuesday
with mostly light winds starting on Wednesday. Minimum rh values
in the teens on Monday will increase to near 30 percent for
Tuesday and Wednesday. A slight drop off in humidities will occur
starting Thursday.

Spotter information statement
Spotters should follow standard reporting procedures.

Psr watches warnings advisories
Az... None.

Ca... None.

Discussion... Aj cb
aviation... Mo
fire weather... Kuhlman


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
46242 - Camp Pendleton Nearshore, CA (043) 99 mi51 min 57°F3 ft

Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Palm Springs, Jacqueline Cochran Regional Airport, CA27 mi57 minESE 410.00 miFair46°F18°F33%1018.9 hPa

Wind History from TRM (wind in knots)
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Last 24hrN17NW8N7NW7NW7NW7NW6N4NW7NE4N4N5NW4CalmCalm3S5453S6S7SE5E4
1 day agoN5NW7N5N7SW5CalmN44CalmNE4N4NW3CalmW13NW11
G18
NW13N8N6NW8NW11
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2 days agoNW4N6N5NW4NW8NW6NW7N5W33S5CalmCalmS45E64CalmW13NW9W19
G28
W14W9W7
G18

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
wmap_P
IR Satellite Image from GEOS
west_satellite

GOES Local Image of Southwest    EDIT
Geos

Wind Forecast for Phoenix, AZ (22,6,7,8)
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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.