Wednesday, August21, 2019 L-36.com


Marine Weather and Tides
San Buenaventura (Ventura), CA

Version 3.4
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7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.
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Sunrise 6:20AMSunset 7:40PM Tuesday August 20, 2019 10:05 PM PDT (05:05 UTC) Moonrise 10:42PMMoonset 10:53AM Illumination 70% Phase: Waning Gibbous; Moon at 20 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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PZZ650 East Santa Barbara Channel From Pt. Conception To Pt. Mugu Ca Including Santa Cruz Island- 830 Pm Pdt Tue Aug 20 2019
.small craft advisory in effect until 3 am pdt Wednesday...
Tonight..NW winds 15 to 25 kt. Combined seas 4 to 6 ft dominant period 7 seconds.
Wed..NW winds 10 to 15 kt, becoming W 15 to 25 kt in the afternoon. Strongest western portion. Combined seas 3 to 4 ft dominant period 9 seconds, building to 4 to 6 ft dominant period 7 seconds in the afternoon.
Wed night..Western portion, nw winds 20 to 25 kt becoming variable 10 kt or less after midnight. Eastern portion, sw winds around 10 kt becoming variable 10 kt or less after midnight. Combined seas 4 to 6 ft dominant period 8 seconds.
Thu..Winds variable 10 kt or less. Wind waves 2 ft or less. W swell 2 to 4 ft at 10 seconds. Patchy fog in the morning.
Thu night..W winds 10 to 15 kt, becoming sw 5 to 10 kt after midnight. Wind waves 2 ft or less. W swell 3 to 4 ft at 10 seconds.
Fri..SE winds 5 to 10 kt, becoming W in the afternoon. Wind waves 2 ft or less. W swell 2 to 3 ft at 9 seconds.
Fri night..W winds 10 kt in the evening, becoming variable 10 kt or less. Wind waves 2 ft or less. W swell 2 to 3 ft at 9 seconds.
Sat..W winds 10 to 15 kt. Wind waves 2 ft or less. W swell 2 to 3 ft.
Sun..W winds 10 to 15 kt. Wind waves 2 ft or less. W swell 2 ft.
PZZ600 830 Pm Pdt Tue Aug 20 2019
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 1022 mb surface high was located about 650 nm west of point conception. A 1001 mb thermal low was centered near las vegas. Gusty northwest winds will continue to increase across the outer waters to gales Wednesday and Wednesday night.


7 Day Forecast for Marine Location Near San Buenaventura (Ventura), CA
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location: 34.25, -119.31     debug


Area Discussion for - Los Angeles/Oxnard, CA
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Fxus66 klox 210414
afdlox
area forecast discussion
national weather service los angeles oxnard ca
914 pm pdt Tue aug 20 2019

Synopsis 20 718 pm.

Afternoon temperatures will be above normal for most of this week
with the warmest day on Wednesday and the coolest on Friday. There
will be areas of overnight and morning coastal low clouds and fog
this week with greater coverage and a push into adjacent valleys
by the weekend.

Short term (tnt-fri) 20 911 pm.

The latest satellite imagery indicates an upper-level ridge of
high pressure centered over southern california, while an upper-
level trough of low pressure is centered off the british columbia
coast. Ridging aloft will build overhead through Wednesday and
continue a warming trend across the region. An update will issue
to touch up minimum temperatures for tonight, but the forecast
temperatures for Wednesday look agreeable.

Weakening onshore flow and a thin marine layer has isolated the
low clouds and fog to just a few patches along the central coast
and along the western portion of the channel islands. Stratus
coverage will remain patchy tonight and into Wednesday morning
across the coastal areas. The best coverage will be for areas
north of point conception. With the shallow marine layer depth,
any stratus will likely form dense fog, especially along the
central coast.

A tightening northerly gradient will bring gusty sundowner winds
to southern santa barbara county tonight, and breezy to locally
windy conditions through the interstate 5 corridor. Ksba-ksmx
surface pressure gradients have tightened to near -3.5 mb this
evening and gusty to around 45 mph have been observed west goleta
toward gaviota. Similar winds could develop again on Wednesday
afternoon and night.

An update will be issued shortly.

***from previous discussion***
Wednesday should be the warmest day as a trough moving through to
the north will introduce a cooler air mass and onshore trends on
Thursday and Friday. By Friday daytime highs should be very close
to normal and the marine layer will likely return to all coastal
areas as well and possibly some valleys.

Long term (sat-tue) 20 204 pm.

Fairly uneventful period of weather over the weekend into early
next week. The ridge rebuilds Saturday and Sunday which should
lead to a few degrees of warming in most areas, but moderate
onshore flow is expected to remain in place so we'll likely see a
shallow but widespread marine layer near the coast during the
night and morning hours at least.

No monsoon moisture expected through the weekend. The GFS shows a
tropical cyclone spinning up off the southern baja coast early
next week and it's possible we could see some mid and high clouds
from it but too dry at lower levels to pose much of a risk for
convection.

Aviation 21 0055z.

At 23z, the marine layer depth was around 900 feet deep at klax.

The top of the inversion was around 2650 feet with a temperature
near 26 degrees celsius.

Moderate-to-high confidence in the current forecast. Higher
confidence in inland terminals and in flight categories, less
confidence in coastal terminals and in timing. There is a chance
of vlifr conditions at terminals north of point conception. There
is a chance of lifr to ifr conditions at ksba koxr and kcma
between 08z and 16z.

Klax... There is a 60 percent chance of ifr conditions as soon as
08z or as late as 13z. There is a 40 percent chance ofVFR
conditions through the period.VFR conditions should develop by
18z at the latest.

Kbur...VFR conditions are expected through the period.

Marine 20 842 pm.

For the outer waters, moderate-to-high confidence in the current
forecast. Small craft advisory (sca) level winds are expected to
continue through at least early Wednesday afternoon. There is a
30 percent chance that winds will briefly drop below SCA levels
late tonight and Wed morning. Gale warnings have been issued
across the outer waters including areas northwest of san nicolas
island from Wednesday afternoon through early Thursday morning.

For the nearshore waters north of point sal, moderate confidence
in the current forecast. A SCA remains in effect through
late tonight. There is a 60 percent chance of SCA level winds
during the afternoon and evening Wednesday and a 40-50 percent
chance on Thursday afternoon and evening.

For the inner waters south of point conception, moderate-to-high
confidence in current forecast. A SCA remains in effect through
late tonight across the western portions of the santa barbara
channel. There is a 60 percent chance for SCA level NW to N winds
across the western portions of the sba channel during the same
times Wednesday. Sundowner winds are on Thursday.

Fire weather 20 329 pm.

Very warm and dry conditions will continue across interior sections
through Thursday. Peak temperatures are expected Wednesday when
warmest mountain, desert, and valley areas will top 100 degrees.

Minimum humidities between 10 and 20 percent will be common across
interior areas through Thursday, with some single digit readings in
the mountains and antelope valley, especially Wednesday. In addition
to the typical gusty onshore winds in the afternoon and evening
hours, there will be some northerly breezes during the overnight and
early morning hours across the interstate 5 and highway 33 corridors
in the mountains and santa clarita valley.

Gusty sundowner winds with warm and dry conditions will also bring
elevated fire danger to the santa barbara south coast and foothills
through Wednesday night, especially western portions where winds
will be strongest. Wind gusts between 35 and 45 mph will be common
in the canyons and foothills from gaviota to goleta during the late
afternoon through nighttime hours (with isolated gusts to 50 mph near
gaviota), along with gusts in the 25 to 35 mph range during the
overnight hours in the hills above montecito and carpinteria. Minimum
humidities through this evening are expected to remain in the 25 to
40 percent range, then lower to between 15 and 30 percent on
Wednesday afternoon and evening, when temperatures will likely climb
above 90 degrees in warmest foothill and canyon locations. Peak
santa barbara-santa maria gradients are expected to be around -4.0
mb this evening and Wednesday evening, with peak santa barbara-
bakersfield gradient expected to be -3.0 to -3.5 mb late tonight.

Lox watches warnings advisories
Ca... Wind advisory in effect until 3 am pdt Wednesday for zones
39-52. (see laxnpwlox).

Pz... Small craft advisory in effect until 3 am pdt Wednesday for
zones 645-650. (see laxmwwlox).

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

Gale warning in effect from 3 pm Wednesday to 3 am pdt
Thursday for zones 670-673-676. (see laxmwwlox).

Hazard potential outlook (fri-tue)
Elevated surf and strong rip currents are possible at area beaches
early next week.

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


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
NTBC1 - Santa Barbara, CA - 9411340 23 mi90 min ENE 4.1 G 4.1 65°F 1011.3 hPa
46053 - E. SANTA BARBARA - 12NM Southwest of Santa Barbara, CA 29 mi36 min W 12 G 14 64°F 64°F1011.5 hPa64°F
46025 - Santa Monica Basin - 33NM West Southwest of Santa Monica, CA 36 mi36 min N 7.8 G 7.8 66°F 1011.6 hPa66°F
46251 36 mi36 min 64°F4 ft
46221 - Santa Monica Bay, CA (028) 45 mi40 min 71°F3 ft
ICAC1 - 9410840 - Santa Monica Pier 46 mi66 min E 6 G 7 68°F 70°F1011.4 hPa (-0.3)

Wind History for Santa Barbara, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Oxnard, Oxnard Airport, CA6 mi4.2 hrsW 1410.00 miFair70°F60°F71%1011.7 hPa
Camarillo, Camarillo Airport, CA12 mi2.2 hrsSW 310.00 miFair69°F57°F68%1012.3 hPa
Point Mugu, Naval Air Warfare Center, CA13 mi3.1 hrsWNW 610.00 miA Few Clouds69°F60°F73%1011.8 hPa

Link to 5 minute data for KOXR

Wind History from OXR (wind in knots)
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Last 24hrNW3CalmCalmCalmCalmW3CalmCalmCalmE33W7W8W12W13W11W11W12W15W14W10W6CalmW4
1 day agoNW5CalmCalmCalmN3NE4NE4E3CalmNE3S4S5SW5W9SW9W10W9W13W13W13W12W7W6W3
2 days agoW4W4W5NW4W4NW5N4NE8N5N5CalmN4W7SW6W9W9
G19
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Tide / Current Tables for Ventura, California
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Ventura
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Wed -- 12:59 AM PDT     3.85 feet High Tide
Wed -- 06:22 AM PDT     Sunrise
Wed -- 07:15 AM PDT     1.71 feet Low Tide
Wed -- 11:49 AM PDT     Moonset
Wed -- 01:51 PM PDT     4.46 feet High Tide
Wed -- 07:37 PM PDT     Sunset
Wed -- 08:37 PM PDT     2.11 feet Low Tide
Wed -- 11:13 PM PDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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3.73.93.73.42.92.31.91.71.82.22.73.444.34.54.33.93.42.82.42.12.12.32.6

Tide / Current Tables for Port Hueneme, California
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Port Hueneme
Click for Map
Wed -- 01:00 AM PDT     3.85 feet High Tide
Wed -- 06:22 AM PDT     Sunrise
Wed -- 07:12 AM PDT     1.71 feet Low Tide
Wed -- 11:48 AM PDT     Moonset
Wed -- 01:52 PM PDT     4.46 feet High Tide
Wed -- 07:36 PM PDT     Sunset
Wed -- 08:34 PM PDT     2.11 feet Low Tide
Wed -- 11:12 PM PDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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3.73.93.73.42.92.31.91.71.82.22.73.444.34.54.33.93.32.82.42.12.12.32.6

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.
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Wind Forecast for Los Angeles/Oxnard, CA (1,6,7,8)
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Ground Weather Radar Station Los Angeles, 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.