Saturday, December7, 2019
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Marine Weather and Tides
Coachella, CA

Version 3.4
NOTICE
10/9/2019 Updated the Marine Zones.
9/4/2019 Fixed the weather maps due to NOAA moving them.
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.
6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at L-36.com. Allen

Sunrise 6:34AMSunset 4:37PM Saturday December 7, 2019 4:17 AM PST (12:17 UTC) Moonrise 3:06PMMoonset 3:06AM Illumination 80% 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 Coachella, CA
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location: 33.73, -116     debug


Area Discussion for - Phoenix, AZ
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FXUS65 KPSR 071124 AFDPSR

Area Forecast Discussion National Weather Service Phoenix AZ 424 AM MST Sat Dec 7 2019

UPDATE. Updated Aviation Discussion.

SYNOPSIS. Abundant moisture streaming off the Pacific Ocean will bring considerable cloudiness by this evening out ahead of an approaching weather system. This system will also bring periods of rainfall mainly after midnight Saturday night across southern Arizona. Rain should mostly taper off across the lower deserts by Sunday evening, but will linger over the higher terrain of eastern Arizona through Monday. Drier conditions with near to slightly above normal temperatures are then expected for the majority of next week.

DISCUSSION. Increasing moisture levels through Sunday morning ahead of a deep Pacific low off the California coast should bring decent chances of widespread showers after midnight Saturday night. Water vapor imagery shows an impressive stream of mid and upper level moisture stretching from just south of Hawaii eastward through the Desert Southwest. The upper level jet associated with the Pacific trough and the sub-tropical jet currently streaming through our region are shown merging later today with a 140kt jet max forming across southern California. This combination will increase moisture transport into the Desert Southwest bringing the main slug of moisture over our region tonight through Sunday morning.

Over the past few models runs, models have generally been more optimistic with rain chances and QPF amounts across southern and central Arizona, especially late tonight when the main moisture push occurs. Though there will be near record climo PWATs for the date, system dynamics and overall ascent parameters will be fairly weak. Even with weak ascent, it should be enough for fairly widespread rain showers developing this evening across the CO River Valley and eventually across the rest of southern Arizona late tonight. The bulk of the rain across the lower deserts should fall through Sunday morning with isolated showers lingering across Maricopa County into Sunday evening. A modest southwesterly upslope component will favor increased shower activity across the higher terrain east of Phoenix with at least some shower activity lasting through Sunday night. For Monday, models are in good agreement pushing the Pacific low center through the southern half of Arizona. This should give additional chances of convective type shower activity mainly Monday morning into the afternoon before increasing subsidence aloft ends rain chances as the low exits to the east. Have raised forecast PoPs above NBM guidance for tonight based on high-res guidance while also raising QPF totals in line with latest model trends. Rainfall amounts across the lower deserts should mostly stay under 0.25" with upwards of 0.75" in higher terrain areas north and east of Phoenix.

Temperatures will remain fairly steady this weekend into the middle of next week with highs mostly in the mid to upper 60s. Much drier air will work into the region behind the Sunday system with surface dew points dropping into the 30s by Tuesday. This dry air will persist through the rest of next week with brief ridging on Tuesday giving way to a dry shortwave trough quickly moving through on Wednesday. A much stronger ridge looks likely for late next week and this may push highs above 70 by next weekend.

AVIATION. Updated at 1120Z.

South-Central Arizona including KPHX, KIWA, KSDL, and KDVT:

Skies will start our partly cloudy today with periodic high and mid cloud CIGS near 18-22 kft. Clouds will be on the increase by mid afternoon into the evening with low cloud CIGS developing tonight as scattered rain and showers move into the vicinity by around 05Z and moderate to light rain begins late tonight around 08Z. Expect BKN low cloud CIGs near 6-7kft with the overnight rain. This first round of rain is expected to move east before sunrise although the low cloud CIGs will persist into Sunday morning. Winds will remain light and roughly favoring normal diurnal patterns through the evening.

Southeast California/Southwest Arizona including KIPL and KBLH:

Skies will be mostly cloudy today with BKN to periodically overcast high cloud CIGS this morning through early afternoon. Low cloud CIGs around 7-9kft will be on the increase by mid afternoon with showers expected in the vicinity of KIPL from mid afternoon to this evening, and at KBLH from late afternoon until late tonight around 10Z. Otherwise expect mostly light wind roughly favoring normal diurnal tendencies.

SPOTTER INFORMATION STATEMENT. Spotters should follow standard reporting procedures.

PSR WATCHES/WARNINGS/ADVISORIES. AZ . Flash Flood Watch from Sunday afternoon through late Monday night for AZZ556.

CA . None.

DISCUSSION . Kuhlman AVIATION . Sawtelle FIRE WEATHER . Kuhlman


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
46224 - Oceanside Offshore, CA (045) 87 mi18 min 62°F2 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, CA11 mi26 minN 09.00 miFair52°F50°F93%1019.3 hPa

Link to 5 minute data for KTRM

Wind History from TRM (wind in knots)
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Last 24hrNW5CalmN5W4W3N3CalmSE4CalmSW3CalmCalmNE3CalmCalmN3NW3SW3NE4N4CalmCalmW4Calm
1 day agoCalmN4N4CalmN4CalmCalm3SE43CalmSE3E3CalmCalmCalmCalmCalmN3CalmN4N4CalmNW4
2 days agoCalmNE3CalmNW3N7N5N3NW3CalmSW5NE3CalmCalmW4CalmCalmCalmCalmNW3W3CalmN5N5N6

Tide / Current Tables for San Clemente, California
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San Clemente
Click for Map
Sat -- 02:12 AM PST     Moonset
Sat -- 05:59 AM PST     5.04 feet High Tide
Sat -- 06:41 AM PST     Sunrise
Sat -- 12:42 PM PST     0.91 feet Low Tide
Sat -- 02:12 PM PST     Moonrise
Sat -- 04:42 PM PST     Sunset
Sat -- 06:26 PM PST     3.64 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.21.62.43.34.24.854.84.23.32.31.510.91.31.92.63.33.63.63.22.621.4

Tide / Current Tables for La Jolla, Scripps Pier, California
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La Jolla
Click for Map
Sat -- 02:10 AM PST     Moonset
Sat -- 05:57 AM PST     5.08 feet High Tide
Sat -- 06:38 AM PST     Sunrise
Sat -- 12:38 PM PST     0.97 feet Low Tide
Sat -- 02:11 PM PST     Moonrise
Sat -- 04:42 PM PST     Sunset
Sat -- 06:27 PM PST     3.64 feet High Tide
Sat -- 11:52 PM PST     1.43 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.41.82.53.44.34.95.14.84.23.32.31.51.111.31.92.73.33.63.63.22.721.6

Weather Map
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wmap_P
GEOS Local Image of Southwest    EDIT
NOTE: East coast views moved to GEOS-16. They are experimental and not well supported by NOAA so they may not be correct so be warned. This change required redoing a large amount of the GOES code. If the image you are expecting is not showing, please let me know. You may need to use the EDIT function to update your location.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Phoenix, AZ (7,2,3,4)
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Ground Weather Radar Station San Diego, CA
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weather_mapweather_map weather_map

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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.