Monday, June26, 2017 L-36.com


Marine Weather and Tides
Pasadena, 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 5:41AMSunset 8:09PM Monday June 26, 2017 8:41 PM PDT (03:41 UTC) Moonrise 8:38AMMoonset 10:35PM Illumination 10% 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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PZZ655 Inner Waters From Point Mugu To San Mateo Pt. Ca Including Santa Catalina And Anacapa Islands- 816 Pm Pdt Mon Jun 26 2017
.small craft advisory in effect until 3 am pdt Tuesday...
Tonight..W winds 10 to 20 kt with gusts to 25 kt...becoming 10 to 15 kt after midnight. Strongest western portion. Combined seas 3 to 5 ft dominant period 6 seconds.
Tue..Winds variable 10 kt or less...becoming W 10 to 15 kt in the afternoon. Wind waves 2 ft or less. Mixed swell W 2 ft at 6 seconds and S 2 ft at 14 seconds.
Tue night..W winds 10 to 20 kt...becoming 5 to 10 kt after midnight. Wind waves 1 to 3 ft. Mixed swell W 2 ft at 6 seconds and S 2 ft at 13 seconds. Patchy fog after midnight.
Wed..SE winds 5 to 10 kt...becoming W 10 kt in the afternoon. Wind waves 2 ft or less. Mixed swell W 2 ft at 6 seconds and sw 2 ft at 18 seconds. Patchy fog in the morning.
Wed night..W winds 10 to 15 kt in the evening...becoming variable 10 kt or less. Wind waves 2 ft or less. Mixed swell W 2 ft at 6 seconds and sw 2 ft at 17 seconds. Patchy fog after midnight.
Thu..Winds variable 10 kt or less...becoming W 10 to 15 kt in the afternoon. Wind waves 2 ft or less. Mixed swell W 2 ft at 7 seconds and sw 2 ft at 17 seconds. Patchy fog in the morning.
Thu night..W winds 10 to 15 kt in the evening...becoming variable 10 kt or less. Wind waves 2 ft or less. Mixed swell W 2 ft and sw 2 ft. Patchy fog after midnight.
Fri..SW winds 5 to 10 kt. Wind waves 2 ft or less. Mixed swell W 2 ft and sw 2 ft. Patchy fog.
Sat..SW winds 5 to 10 kt. Wind waves 2 ft or less. Mixed swell W 2 ft and S 2 ft. Patchy fog.
PZZ600 816 Pm Pdt Mon Jun 26 2017
Synopsis for the southern california coast and santa barbara channel including the channel islands national marine sanctuary and national park..At 03z...or 8 pm pdt...a 1030 mb high was located 800 nm west of seattle while a 1008 mb thermal low was over southeast california. The high will push toward the pac nw and weaken through Thursday...while the thermal low persists.

7 Day Forecast for Marine Location Near Pasadena, CA
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location: 34.16, -118.14     debug


Area Discussion for - Los Angeles/Oxnard, CA
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Fxus66 klox 270321
afdlox
area forecast discussion
national weather service los angeles oxnard ca
821 pm pdt Mon jun 26 2017

Synopsis
High pressure aloft over the region will weaken over the next
several days as an upper-level trough over the pacific northwest
brushes the area. A cooling trend will develop through Thursday as
onshore flow strengthens and the marine layer deepens. A more
persistent stratus deck will become a staple of the weather
pattern for the coastal and valley areas through Thursday,
possibly lingering at the beaches throughout each day.

Short term (tonight-thu)
another hot day across interior portions of the forecast area
with several stations once again reporting triple digit readings.

A few of the hottest locations included woodland hills and
northridge reaching 106 degrees, and chatsworth and van nuys at
104 degrees. Warm temperatures continue this evening across
interior areas, as well as portions of the sba south coast and
santa ynez mountains where gusty sundowner winds are occurring.

As of 8 pm, current sba-smx gradient at -4.4 mb. Not much in the
way of upper level wind support, so thinking that the winds
should generally remain below advisory levels, gusting in the 30
to 35 mph range, except local gusts around 40 mph near refugio
hills. Temperatures will spike to around 90 degrees this evening
in favored downslope locations bringing another round of elevated
fire weather concerns to that area.

Heat advisories will likely be allowed to expire at 9 pm, as
cooling trend expected to keep most interior areas in the 90s on
Tuesday. Marine layer clouds expected to fill in across the
central coast tonight as well as the salinas river valley, with a
slight chance that some low clouds and fog could reform along the
immediate portions of the la county coast. Increasing onshore flow
and a strengthening eddy circulation will likely bring a
substantial increase in low clouds and fog across coastal valley
areas on Tuesday night.

*** from previous discussion ***
still a decent northwest gradients across the santa ynez range the
next couple night but minimal support aloft. So for the most part
winds should remain below advisory levels. The northwest flow and
warm air mass will help keep south coast temps in the 80s Tuesday
and possibly even near 90 in some isolated spots.

Long term (fri-mon)
a little ridge will pop up Friday to help push temps up a few
degrees in most areas but the warm up will be brief as weak
troughing returns for the weekend. Still a little uncertainty with
this though as models have sort of been bouncing around with the
weak trough ridge scenario. Probably not a huge difference either
way as temps should remain within a few degrees of normal through
early next week.

Aviation 26 2355z.

At 2330z at klax... There was a 450 ft marine layer. The inversion
top was 1800 ft with a temperature of 32 degrees celsius.

High confidence inVFR conditions everywhere through 03z today,
with very hot conditions stronger than usual west winds. Kvny and
kbur expected to have rare west wind through 03z. 80 percent
chance of lifr ifr cig at ksmx tonight, 60 percent chance at ksbp
and kprb, 20 percent chance at klgb klax ksmo. Moderate
confidence inVFR conditions everywhere else through Tuesday.

Klax... High confidence inVFR conditions through 08z, with a 20
percent chance of ifr conditions mainly from 10-17z Tuesday. West
wind gusts between 20 and 25 kt likely through 03z. No
significant east winds expected through Tuesday.

Kbur... High confidence inVFR conditions through at least
Tuesday. 60 percent chance for the same rare west wind through 03z
as that occurred yesterday.

Marine 26 800 pm.

High confidence in SCA conditions with gusty NW winds and short
period seas at least through Thursday over the outer waters. Winds
are expected to strengthen on Tuesday with speeds up to 30 knots
over much of the area. The SCA extends through late Tuesday night
but conditions are expected to remain hazardous through Thursday
or Friday... And possibly longer over the northern waters.

Moderate confidence in SCA conditions over the santa barbara
channel and santa monica basin through tonight... With similar but
slightly weaker winds on Tuesday. The stronger winds will
generally be over the western portions of the inner waters and
will likely persist through Tuesday night... Along with short
period seas. There will be lulls of several hours each morning
within about 10 miles of the coast.

Two wave groups will be observable over the waters, with a long
period (13-15 seconds) south to southwest swell through Tuesday,
and a short period (6-8 second) west swell and or wind wave. The
buoys may highlight the long period swell, but the short period
swell will be the most noticeable and the most hazardous. Later
this week the short-period west swell will dominate as the south
swell fades.

Fire weather 26 800 pm.

Several small fire starts across the forecast area today as gusty
onshore winds coupled with continued hot and dry conditions across
inland areas. A large fire called the hill fire in slo county
(located to the east of santa margarita) has spread rapidly to
900 acres as of 8 pm. Gusty onshore winds will continue to spread
the fire and smoke plume eastward this evening. The low level
winds in this area will diminish overnight then shift to a light
north to northeast direction on Tuesday morning. Elevated fire
weather concerns will then return to the fire area on Tuesday
afternoon as gusty onshore winds combine with very warm and dry
conditions in the afternoon and evening hours. The 00z vandenberg
sounding showing the marine layer depth around 1100 feet, with
marine layer clouds not expected to reach the fire location
overnight.

Red flag conditions observed today across portions of the antelope
valley, la county mountains, and santa clarita valley. Current red
flag warnings for those areas are set to expire at 9 pm, which
looks on track as onshore winds will continue to slowly diminish
tonight. Despite the diminishing winds, there will be poor
humidity recoveries tonight across the mountains and foothills.

Other area of concern is gusty sundowner winds this evening and
again Tuesday evening across the portions of the santa ynez
mountains and sba south coast, especially from gaviota to goleta.

As of 8 pm, sba-smx gradient was at -4.4 mb. With not much in the
way of upper level wind support, looking for localized wind gusts
in the 35 to 40 mph range. These winds coupled with warm dry
conditions will bring elevated fire danger over that area this
evening and again Tuesday evening. As of 8 pm, montecito hills
reporting north winds gusting to 26 mph with a temperature of 90
degrees and humidity of 10 percent.

Fire weather conditions improve a bit Tuesday all areas with the
upper level ridge beginning to weaken, bringing cooler
temperatures and slightly higher minimum relative humidities. The
single digit relative humidities will be restricted to far eastern
antelope valley, although min rh's in the lower teens will
reappear across all interior sections. Winds, however, will not
be as strong as today's, but still breezy in spots in the
afternoon to warrant elevated fire weather conditions.

Lox watches warnings advisories
Ca... Heat advisory in effect until 9 pm pdt this evening for zones
53-54-88-547. (see laxnpwlox).

Red flag warning in effect until 9 pm pdt this evening for
zones 254-259-288. (see laxrfwlox).

Pz... Small craft advisory in effect from 3 pm Tuesday to 3 am pdt
Wednesday for zone 645. (see laxmwwlox).

Small craft advisory in effect until 3 am pdt Wednesday for
zones 650-670-673-676. (see laxmwwlox).

Small craft advisory in effect until 3 am pdt Tuesday for
zone 655. (see laxmwwlox).

Hazard potential outlook (thu-mon)
no significant hazards expected.

Public... Gomberg mw
aviation... Gomberg
marine... Smith
fire... Gomberg jackson
synopsis... Hall
weather.Gov losangeles


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
ICAC1 - 9410840 - Santa Monica Pier 22 mi42 min ENE 1 G 1.9 69°F 66°F1012 hPa (-0.6)
PSXC1 27 mi42 min SE 1.9 G 2.9
BAXC1 28 mi42 min NNW 2.9 G 4.1
PXAC1 28 mi42 min N 5.1 G 7
PFXC1 29 mi42 min SSW 5.1 G 6 69°F
PRJC1 30 mi42 min WSW 11 G 12
PFDC1 30 mi42 min S 1.9 G 2.9
AGXC1 31 mi42 min WSW 9.9 G 12 66°F 1011.6 hPa (-0.6)
OHBC1 - 9410660 - Los Angeles, CA 31 mi42 min 61°F1011.7 hPa (-0.4)
46256 32 mi50 min 62°F3 ft
46221 - Santa Monica Bay, CA (028) 34 mi42 min 66°F3 ft
46222 - San Pedro, CA (092) 39 mi42 min 66°F3 ft
46253 40 mi42 min 65°F3 ft

Wind History for Santa Monica, CA
(wind in knots)    EDIT      (on/off)   Help
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
El Monte, CA8 mi56 minSSW 710.00 miFair84°F44°F25%1012.2 hPa
Los Angeles / USC Campus Downtown, CA12 mi55 minW 610.00 miFair76°F57°F52%1011.4 hPa
Burbank - Bob Hope Airport, CA12 mi49 minVar 410.00 miFair86°F48°F27%1010.5 hPa
Los Angeles, Whiteman Airport, CA16 mi47 minESE 510.00 miClear90°F44°F21%1013.5 hPa
Santa Monica, Santa Monica Municipal Airport, CA19 mi51 minW 510.00 miFair71°F57°F63%1011.7 hPa
Brackett Field Airport, CA19 mi2.9 hrsW 1510.00 miFair91°F39°F16%1013.5 hPa
Van Nuys, Van Nuys Airport, CA19 mi51 minNNW 410.00 miFair87°F41°F20%1010.9 hPa
Hawthorne, Hawthorne Municipal Airport, CA19 mi49 minWSW 310.00 miFair73°F61°F66%1011.7 hPa
Los Angeles, Los Angeles International Airport, CA21 mi49 minWSW 410.00 miFair71°F62°F73%1011.5 hPa
Fullerton, Fullerton Municipal Airport, CA22 mi49 minS 310.00 miFair81°F57°F45%1011 hPa
Long Beach, Long Beach Airport, CA23 mi49 minESE 510.00 miFair76°F60°F58%1011.3 hPa

Wind History from MWS (wind in knots)
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1 day agoSW5
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2 days agoCalmW1
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G5

Tide / Current Tables for Santa Monica, Municipal Pier, California
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Santa Monica
Click for Map
Mon -- 05:44 AM PDT     Sunrise
Mon -- 06:03 AM PDT     -1.36 feet Low Tide
Mon -- 08:40 AM PDT     Moonrise
Mon -- 12:41 PM PDT     4.29 feet High Tide
Mon -- 05:37 PM PDT     1.96 feet Low Tide
Mon -- 08:09 PM PDT     Sunset
Mon -- 10:36 PM PDT     Moonset
Mon -- 11:41 PM PDT     6.13 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
6.25.13.51.70.1-0.9-1.4-1-0.11.12.43.54.24.33.93.22.52.122.43.34.35.36

Tide / Current Tables for Santa Monica, California
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Santa Monica
Click for Map
Mon -- 05:44 AM PDT     Sunrise
Mon -- 06:04 AM PDT     -1.33 feet Low Tide
Mon -- 08:40 AM PDT     Moonrise
Mon -- 12:40 PM PDT     4.32 feet High Tide
Mon -- 05:37 PM PDT     1.99 feet Low Tide
Mon -- 08:09 PM PDT     Sunset
Mon -- 10:36 PM PDT     Moonset
Mon -- 11:42 PM PDT     6.18 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
6.25.13.51.80.2-0.9-1.3-1-0.11.22.53.64.24.33.93.32.62.122.53.34.45.46

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 Los Angeles/Oxnard, CA (23,6,7,8)
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Ground Weather Radar Station Santa Ana Mtns, 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.