Thursday, March30, 2017 L-36.com


Marine Weather and Tides
Desert Center, 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 6:31AMSunset 7:05PM Thursday March 30, 2017 3:52 AM PDT (10:52 UTC) Moonrise 8:34AMMoonset 10:12PM Illumination 9% 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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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 301043
afdpsr
area forecast discussion
national weather service phoenix az
343 am mst Thu mar 30 2017

Synopsis
A strong low pressure system will produce windy conditions
today along with much cooler temperatures Friday. Isolated
precipitation is possible across the higher terrain of eastern
arizona Saturday as the storm lingers. Warmer conditions will then
return Sunday and into early next week as high pressure again
builds across the region.

Discussion
Latest water vapor imagery and streamline analysis show a well-
defined trough along the northern ca coast. This system will move
steadily into the great basin today while deepening rapidly. Main
impact across the desert southwest will be an increase in wind
along and ahead of an approaching cold front. Latest naefs
anomalies show a widespread area of 850 mb winds above the 95th
percentile and even approaching the 99th percentile in spots.

Although the strongest winds are anticipated across southeastern
california and southwestern arizona, gusts may still reach as high
as 30 mph late this afternoon in the phoenix area. Latest model
runs have also hinted at some potential for shower activity across
north-central arizona, though the latest suite of cams including
the hrrr show little potential for activity reaching the phoenix
area.

The anomalous low pressure system will close off overnight before
migrating towards the four corners Friday. A much colder air mass
will then descend across the region and high temperatures have
been lowered further with a high of only 71 degrees expected in
the phoenix area. If that verifies, it would be the coolest day
since march 1st, when a high temperature of 70 degrees was
recorded.

The low is expected to fill as it drifts eastward Saturday. Latest
gfs and ECMWF have trended somewhat drier, suggesting only modest
vorticity-forced ascent for shower activity across mainly eastern
arizona. Pops have consequently been lowered but nevertheless
remain around 20 percent across eastern gila county. Although
warmer temperatures are anticipated Sunday, a more pronounced
warming trend is expected Sunday as a short-wave ridge emanating
from the eastern pacific again builds across the region.

Transitory pattern will persist through early next week with
another short-wave trough likely passing by to our north Monday
night, bringing some slight cooling for Tuesday but no chance of
rain. A broad ridge will then slide eastward across the
intermountain west for the midweek period, yielding above normal
temperatures.

Aviation
South-central arizona including kphx, kiwa, and ksdl:
westerly winds will gradually diminish this evening with a switch
over to downslope easterlies sometime late this evening to around
midnight. Skies to remain clear to mostly clear with only high
cirrus from time to time. Westerly winds will again become breezy
Thursday afternoon with gusts to around 20 kts.

Southeast california/southwest arizona including kipl and kblh:
generally light westerly winds tonight under mostly clear skies.

An approaching low pressure system will allow for increasing winds
on Thursday with westerly winds gusting up to 30 kts by late in
the afternoon. These strong westerly winds may lead to some patchy
blowing dust which could impact kipl or kblh. Not enough
confidence in blowing dust occurrence at this time to include in
tafs.

Aviation discussion not updated for amended tafs.

Fire weather
Friday through Tuesday: the weather pattern will remain relatively
active across the desert southwest through early next week, though
in general precipitation is not expected. Only exception will be in
the higher terrain well north and east of phoenix. On Friday, below
normal temperatures are expected as a low pressure system moves
through which may bring locally breezy winds. High temperatures
rebound on Saturday to near normal although breezy winds are
expected once again in SE california and far western arizona as
the low pressure system exits our area. Thereafter, high pressure
will follow for Sunday and Monday, resulting in a warming trend
and a return to above normal temperatures with relatively light
winds. Another passing dry low pressure system may affect our area
on Monday which should bring another round of breezy winds.

Spotter information statement
Spotters should follow standard reporting procedures this week.

Psr watches/warnings/advisories
Az... Red flag warning from 3 pm this afternoon to 8 pm mst this
evening for azz131-132.

Wind advisory from 2 pm this afternoon to 11 pm mst this evening
for azz020-021-025-026.

Ca... Red flag warning from 3 pm this afternoon to 8 pm pdt this
evening for caz231.

Wind advisory from 2 pm this afternoon to 11 pm pdt this evening
for caz030>033.

Visit us on facebook, twitter, and at weather.Gov/phoenix
discussion... Hirsch
aviation... Kuhlman
fire weather... Wilson/hirsch


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
46242 - Camp Pendleton Nearshore, CA (043) 99 mi84 min 61°F3 ft

Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Palm Springs, Jacqueline Cochran Regional Airport, CA27 mi60 minESE 310.00 miFair54°F39°F59%1011.1 hPa

Wind History from TRM (wind in knots)
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Last 24hrCalmNW53CalmCalmCalmSE34N846NW3NW3CalmSE7SE6CalmNW6N4NW3W3NW3CalmE3
1 day agoNW12
G19
W12NW10NW10NW9NW10N13
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W9NW11NW6NW9N8W7W7E3N3NE4N75NW9
2 days agoNW10NW8NW10N4NW8NW13NW18
G24
--NW12NW10
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NW9NW11NW11W12NW7NW9N7

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 (6,6,7,8)
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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.