Sunday, January21, 2018 L-36.com


Marine Weather and Tides
Guadalupe, 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 7:04AMSunset 5:22PM Sunday January 21, 2018 4:56 AM PST (12:56 UTC) Moonrise 9:59AMMoonset 9:54PM Illumination 23% Phase: Waxing Crescent; Moon at 5 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
    EDIT      (on/off)   Help
PZZ673 Waters From Pt. Sal To Santa Cruz Island Ca And Westward 60 Nm Including San Miguel And Santa Rosa Islands- 238 Am Pst Sun Jan 21 2018
.small craft advisory for hazardous seas in effect until 9 am pst this morning...
Today..N winds 15 to 20 kt. Wind waves 2 to 3 ft. NW swell 10 to 11 ft at 13 seconds, subsiding to 9 ft at 13 seconds.
Tonight..NW winds 15 to 20 kt with local gusts to 25 kt, becoming N 15 to 25 kt after midnight. Strongest around point conception. Wind waves 2 ft or less. NW swell 7 to 8 ft at 12 seconds, building to 9 ft at 16 seconds.
Mon..N winds 10 to 20 kt with local gusts to 25 kt, becoming nw 15 to 25 kt with gusts to 30 kt in the afternoon. Combined seas 9 to 11 ft dominant period 16 seconds, building to 10 to 13 ft dominant period 15 seconds. Slight chance of rain in the morning.
Mon night..NW winds 15 to 25 kt with gusts to 30 kt, becoming N 10 to 20 kt with gusts to 25 kt after midnight. Combined seas 10 to 13 ft dominant period 15 seconds, subsiding to 9 to 11 ft dominant period 14 seconds after midnight.
Tue..N winds 10 to 20 kt with gusts to 25 kt, becoming nw 15 to 20 kt in the afternoon. Wind waves 2 to 4 ft. NW swell 8 to 10 ft at 14 seconds.
Tue night..NW winds 10 to 20 kt, becoming N 10 to 15 kt after midnight. Wind waves 1 to 3 ft. NW swell 7 to 9 ft at 14 seconds.
Wed..NW winds 15 to 20 kt with gusts to 25 kt. Combined seas 6 to 8 ft. Chance of showers.
Thu..NW winds 15 to 25 kt. Combined seas 10 to 13 ft. Chance of showers.
PZZ600 238 Am Pst Sun Jan 21 2018
Synopsis for the southern california coast and santa barbara channel including the channel islands national marine sanctuary and national park..At 10z...or 2 am pst...a 1029 mb high was located 500 nm W of point conception and another smaller 1029 mb high was over nevada. Weak low pres continued along the coast of sw ca. A large W to nw swell will continue across the outer waters through Mon.

7 Day Forecast for Marine Location Near Guadalupe, CA
   Hourly   EDIT   Help
location: 34.74, -121.36     debug


Area Discussion for - Los Angeles/Oxnard, CA
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxus66 klox 211202
afdlox
area forecast discussion
national weather service los angeles oxnard ca
402 am pst Sun jan 21 2018

Synopsis
Clear skies and generally light winds will lead to below normal
temperatures this morning with areas of frost for colder coastal
areas. A warming trend is expected through early next week as
weak ridging builds aloft. A weakening cold front will likely push
through the region later in the week, bringing wind and cooler
conditions and possibly widespread rain and mountain snow showers.

Short term (tdy-tue)
latest IR satellite imagery showed southern california sandwiched
between a departing trough of low pressure pushing east along the
front range of the rockies and a deeper low pressure system slowly
spiraling east into british columbia. Breezy north winds continue
across mainly across the mountains this morning but should
continue to weaken as they turn offshore and thus have allowed the
wind advisory to expire at 3 am. The weak offshore flow and
remnant cold air from the previous system will support freezing
conditions once again for many interior areas and at higher
elevations. Frost and freeze conditions area also likely for some
coastal and valley areas especially north of point conception and
wind sheltered valleys (such as ojai). Have decided to cancel the
frost advisory for eastern ventura valleys as most temperatures
remain in the low to mid 40s in this area this morning. May also
cancel the freeze warning focused across the ojai valley as
temperatures remain near 40 this past hour. The see the latest
npw for associated frost and freeze products.

Continued moderation of the airmass in place coupled with weak
offshore flow will bring 3-6 degrees of warming for many areas
south of point conception today. Several degrees of warming is
also likely for the central coast into adjacent coastal valleys.

Increasing mid to high level clouds through the day will lead to
mostly skies by Sunday evening north of point conception and
partly cloudy skies to the south.

A rapidly weakening cold front is expected to push into the
central coast Sunday night into early Monday morning. It may hold
together just long enough to bring light rainfall to northwest
san louis obispo county. Impacts are expected to be minimal except
across lower elevations of the interior valley (such as near paso
robles) where wet bulb temperatures (a measure of how low
temperatures may fall with persistent rainfall) are expected to
hover near freezing during the early morning hours. Have left the
mention of freezing rain or drizzle out of the forecast for now
given the low odds of occuring. However, even a little freezing
drizzle can have significant travel impacts so this situation will
be watched closely. The front is expected to wash out along the
central coast Friday afternoon with clearing skies.

A ridge of high pressure aloft is will nose in from southwest
of the region Tuesday with h5 heights peaking at around 574 dm.

This combined with mostly clear skies and some increase in
offshore flow will bring a nice jump in temperatures with
widespread highs in the 60s to 70s, warmest coast and coastal
valleys south of point conception. Offshore winds in the morning
may approach advisory levels for wind prone areas.

Long term (wed-sat)
above normal model agreement and confidence in the forecast exists
during the extended period.

A deepening trough of low pressure diving south from the gulf of
alaska to just off the pacific northwest coast will push the weak
ridging out of the region by late in the day Wednesday with weak
offshore in the morning turning weakly onshore by the evening
hours (especially north of point conception). At this time, the
transition to onshore flow will be delayed just enough for another
warm day especially for coastal valleys and further inland.

Coastal areas, especially north of point conception may see
several degrees of cooling due to the switch to onshore flow. Mid
and high level clouds will likely be on the increase by late in
the day ahead of the next frontal system. Low clouds may also
develop for some coastal areas by Wednesday night.

A cold front is currently expected to push through the region
sometime Thursday. Although, in recent runs model guidance has
been trending slower by up to 12 hours. Would not be surprised if
this trend continued a bit longer. The trough associated with the
cold front does not currently look quite as deep or as far south
as the one that passed through the region Friday into Saturday.

However, the associated cold front with the upcoming potential
storm looks to have slightly better southerly flow out ahead of
hit. This might improve the chances of holding the front and
associated rain chances together as it moves south of point
conception into ventura and los angeles counties. Like the
aforementioned storm, this one will also likely have a significant
pool of cold air aloft to work with. If this is the case, it would
likely bring gusty winds, especially to the mountains and southern
santa barbara county along and behind the cold front later
Thursday into Friday. The cold air could also support periods of
snow showers as low as 3000 to 4000 feet during this time period
(similar snow levels as the previous storm).

A warming and drying trend is likely heading into next weekend
with similar if not warmer conditions to that experienced earlier
in the week. Warmer valleys may break 80 degrees for high
temperatures by next Sunday.

Aviation 21 1140z
at 1105z at klax, there was no marine layer nor was there a sfc
based inversion.

High confidence in cavu tafs.

Klax... High confidence in cavu taf.

Kbur... High confidence in cavu taf.

Marine 21 300 am
across the southern outer waters zones (pzz673, pzz676). Sca
conds for seas are then likely this morning, and possibly much of
the time Mon through Tue night due to a combination of winds and
seas.

Across the northern outer waters zone (pzz670) SCA conds for
seas will last through this morning. SCA conds are then likely
again Mon thru Mon night due to seas.

For the inner waters SCA conds are possible again Mon and mon
night due to high seas.

Across the sba channel and the southern inner waters, SCA conds
are not expected until thu.

Another long period NW swell will arrive in the water late Sunday
night, rising to 10 to 13 feet by Monday.

Lox watches warnings advisories
Ca... Frost advisory in effect until 9 am pst this morning for
zones 34-35. (see laxnpwlox).

Freeze warning in effect until 9 am pst this morning for zone
44. (see laxnpwlox).

Pz... Small craft advisory for hazardous seas in effect until 9 am
pst this morning for zones 670-673-676. (see laxmwwlox).

Hazard potential outlook (tue-sat)
strong and impactful winds are possible Thursday and Friday over
the mountains and southern santa barbara county. Snow and travel
delays are possible over the tejon pass grapevine area late
Thursday into Friday.

Public... Munroe
aviation... Rorke
marine... Asr
synopsis... Munroe
weather.Gov losangeles


Weather Reporting Stations
   EDIT       (on/off)   Help   NOTE: Click on distance to see the station location on a map
Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
46259 16 mi34 min 58°F12 ft
46011 - SANTA MARIA - 21 NM Northwest of Point Arguello, CA 23 mi66 min N 14 G 16 53°F 57°F12 ft1024.8 hPa (+0.0)
46218 - Harvest, CA (071) 36 mi26 min 58°F12 ft
PTGC1 - Point Arguello, CA 39 mi56 min N 13 G 15 48°F 1024.7 hPa (+0.0)
HRVC1 41 mi44 min 54°F 1024.2 hPa
46215 - Diablo Canyon, CA (076) 42 mi29 min 55°F9 ft
CPXC1 44 mi18 min N 6 G 7 46°F 1025.8 hPa36°F
PSLC1 - 9412110 - Port San Luis, CA 44 mi38 min N 6 G 8 47°F 57°F1026.1 hPa

Wind History for Port San Luis, CA
(wind in knots)    EDIT      (on/off)   Help
5
AM
6
AM
7
AM
8
AM
9
AM
10
AM
11
AM
12
PM
1
PM
2
PM
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
9
PM
10
PM
11
PM
12
AM
1
AM
2
AM
3
AM
4
AM
Last
24hr
NE3
W1
N3
NE1
NE5
--
S5
SW9
G16
W11
G17
NW11
G22
NW12
G18
NW5
G17
NW11
G21
W9
G15
NW9
NW13
G16
NW9
G12
W1
N5
NW5
NW8
NW5
N5
N8
1 day
ago
N2
NW3
NW2
W2
G5
N9
G13
NW7
G11
W6
G10
NW8
NW6
G13
NW5
G9
NW7
G13
W5
G17
W4
G19
NW10
G14
NW7
G15
NW9
G13
W3
N4
NW1
NW8
--
N7
NW10
G14
N4
G7
2 days
ago
NW2
SE3
NW1
G4
NE3
E5
E3
SE2
SW5
G10
SW5
G10
W13
W10
W20
W13
G16
W13
SW1
N1
G4
NW1
N1
W5
NW3
W8
G11
SW5
G10
SW5
NW8
G12

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Lompoc, Vandenberg Air Force Base, CA42 mi58 minNNE 610.00 miFair40°F33°F79%1025.1 hPa

Wind History from VBG (wind in knots)
5
AM
6
AM
7
AM
8
AM
9
AM
10
AM
11
AM
12
PM
1
PM
2
PM
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
9
PM
10
PM
11
PM
12
AM
1
AM
2
AM
3
AM
4
AM
Last 24hrN9NE8NE6NE6NE7NE10N12NW15N16N14N18
G24
N18NW16
G21
N16N14N9NE5NE7NE4NE4NE4NE6NE7NE6
1 day agoN7N9N4N8N15N13N14N14N16N17N19
G23
N16N18N18N13
G23
N18N6NE8N6NE6NE7NE4NE6NE6
2 days agoSE5SE10SE11Calm3NW7NW3CalmNW8N6NW10NW6NW7NW9N8N6N5N4N3CalmCalmN14N13N11

Tide / Current Tables for Point Arguello, California
   EDIT   RT Ports Option   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Point Arguello
Click for Map
Sun -- 01:06 AM PST     3.93 feet High Tide
Sun -- 06:05 AM PST     2.37 feet Low Tide
Sun -- 07:07 AM PST     Sunrise
Sun -- 09:55 AM PST     Moonrise
Sun -- 11:49 AM PST     4.44 feet High Tide
Sun -- 05:21 PM PST     Sunset
Sun -- 06:46 PM PST     0.29 feet Low Tide
Sun -- 09:50 PM PST     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
3.73.93.83.42.92.52.42.52.93.43.94.34.44.23.62.71.80.90.40.30.61.222.9

Tide / Current Tables for Oil Platform Harvest (Topex Project), California
   EDIT      (on/off)   Help   One Week of Data
Oil Platform Harvest (Topex Project)
Click for Map
Sun -- 12:54 AM PST     4.00 feet High Tide
Sun -- 05:53 AM PST     2.40 feet Low Tide
Sun -- 07:06 AM PST     Sunrise
Sun -- 09:55 AM PST     Moonrise
Sun -- 11:39 AM PST     4.63 feet High Tide
Sun -- 05:21 PM PST     Sunset
Sun -- 06:38 PM PST     0.33 feet Low Tide
Sun -- 09:51 PM PST     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
3.843.83.42.92.52.42.633.64.24.54.64.33.62.61.70.90.40.40.71.42.23

Weather Map and Satellite Images
       (on/off)   Help
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 (7,2,3,4)
      (on/off)   Help

Ground Weather Radar Station Vandenberg AFB, CA
   (on/off)   Help
weather_mapweather_map weather_map

Ad by Google

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.