Thursday, June21, 2018 L-36.com


Marine Weather and Tides
Desert Center, CA

Version 3.4
What's New / NOTES
5/20/2018 -- NOAA is having problems with the data feed that I use to draw the graphs. They are aware of the issue and working to resolve it. Sometimes changing the location by about a mile will give a correct graph. 3/3/2018 - There is a new GOES Satellite for the east coast that required rewriting that part of the code. Please report any issues.

Sunrise 5:31AMSunset 8:00PM Thursday June 21, 2018 1:17 AM PDT (08:17 UTC) Moonrise 2:05PMMoonset 1:33AM Illumination 55% Phase: First Quarter Moon; Moon at 8 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 202134
afdpsr
area forecast discussion
national weather service phoenix az
234 pm mst Wed jun 20 2018

Synopsis
High pressure will build across the region this week resulting in a
rapid warming trend with many lower desert communities exceeding
the 110 degree threshold both Thursday and Friday. Some cooling
is anticipated over the weekend as a weak low pressure system
passes north of the region. There are no signs of rainfall through
early next week.

Discussion
Not much to observe on the goes-16 visible channel over arizona
today as clear skies abound. Temperatures across the lower desert
are currently in the 103 to 107 range this early afternoon and
should continue to warm a few more degrees through early evening.

High pressure aloft will continue to build across our area through
the rest of the week. The ensembles are pretty consistent showing h5
heights increasing to near 594-596 dm across central arizona with
the most anomalous heights just off the san diego coast. This
will mean that Thursday and Friday will see the hottest
temperatures with highs in the 110 degree neighborhood for the
phoenix area while heating even a few degrees warmer in blythe and
el centro.

Decided to increase the coverage of the existing heat warning for
Thursday and Friday to include portions of the northwest and
southeast valley where daytime temperatures, when most people will
be active and most vulnerable to the heat, is forecasted to be
110 plus degrees by Friday. This is quite the warm up, nearly 30
degrees, from the extraordinary cooler temperatures last weekend.

While the heat risk tool is a major driver for excessive heat
products, more weight was given to the hot daytime temperatures,
the significant warm up, and the sake of spatial continuity to
justify the excessive heat warning and warrant the increase in
warning coverage.

Regardless, the ridge will take a decent drubbing by a subtle
wave pushing across our north on Saturday. This will do well to
reduce atmospheric heights and allow temperatures to cool much
closer to seasonal normal values for the weekend. Once the trough
exits into the central plains, the ridge will rebuild over the
southwest and temperatures will rise again.

Aviation
South-central arizona including kphx, kiwa, and ksdl and southeast
california southwest arizona including kipl and kblh:
no weather-related aviation weather concerns through the TAF period.

Strong high pressure at the sfc and aloft to keep skies mainly clear
and winds on the light side(10 kts or less) through the TAF period.

Wind directions to mainly follow typical diurnal trends at the
phoenix area TAF sites, remain mainly for a southeasterly direction
at kipl, and a southerly direction at kblh through Thursday.

Aviation discussion not updated for amended tafs.

Fire weather
Saturday through Wednesday:
low pressure passing well to the north with push temperatures back
to near-normal values this weekend. Another warming trend is then
expected early next week as high pressure builds across the desert
southwest. Minimum afternoon humidity values will fall into the 10-
20% range each day. Overnight recoveries will be poor to fair.

Occasionally gusty winds can be expected Saturday ahead of a weak
area of low pressure passing by to the north, but otherwise typical
afternoon upslope gustiness will be common during the period. There
are no signs of rain through the middle of next week.

Spotter information statement
Spotter activation will not be needed.

Psr watches warnings advisories
Az... Excessive heat warning from 10 am Thursday to 9 pm mst Friday
for azz537-540>546-548>551-553>556-560-562.

Heat advisory from 10 am Thursday to 9 pm mst Friday for azz563.

Excessive heat warning from 10 am to 9 pm mst Friday for azz532-
536-539.

Ca... Excessive heat warning from 10 am Thursday to 9 pm pdt Friday
for caz561-566.

Excessive heat warning from 10 am to 9 pm pdt Friday for caz567-
568-570.

Discussion... Deemer
aviation... Percha
fire weather... Percha hirsch


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
46242 - Camp Pendleton Nearshore, CA (043) 99 mi49 min 67°F2 ft

Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Palm Springs, Jacqueline Cochran Regional Airport, CA27 mi25 minENE 410.00 mi80°F53°F39%1007.8 hPa

Wind History from TRM (wind in knots)
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Last 24hrN8N4N7N6CalmW3CalmSE6SE8SE7S86S6E6SE7S9SE10SE5SW6SW5NE4NE4W3W5
1 day agoNW13NW13NW9NW10NW9NW9NW8NW11N7CalmCalmSE6S65SE9
G15
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2 days ago--NW13
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NW12NW9NW10N8NW7NW10NW106N53N63--NW5N5W3NW7NW11NW15
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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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GOES 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 (4,6,7,8)
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Ground Weather Radar Station San Diego, CA
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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.