Friday, March24, 2017 L-36.com


Marine Weather and Tides
Lakeport, 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 7:06AMSunset 7:31PM Friday March 24, 2017 7:09 AM PDT (14:09 UTC) Moonrise 4:11AMMoonset 3:02PM Illumination 10% Phase: Waning Crescent; Moon at 27 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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PZZ540 Point Arena To Point Reyes To 10 Nm- 221 Am Pdt Fri Mar 24 2017
.small craft advisory in effect through this afternoon...
Today..S winds 15 to 25 kt...becoming W and decreasing to 10 to 20 kt in the afternoon. Wind waves 3 to 5 ft. W swell 8 to 10 ft at 13 seconds. Rain.
Tonight..NW winds 5 to 15 kt. Wind waves 1 to 3 ft. W swell 6 to 8 ft at 12 seconds. Chance of showers in the evening, then slight chance of showers after midnight.
Sat..NW winds 5 to 15 kt. Wind waves 1 to 3 ft. W swell 7 to 9 ft at 14 seconds.
Sat night..NW winds 5 to 15 kt. Wind waves 1 to 3 ft. W swell 7 to 9 ft at 15 seconds.
Sun..S winds 5 to 15 kt...becoming southwest 15 to 25 kt. Wind waves 2 ft or less...becoming 3 to 4 ft. W swell 6 to 8 ft at 12 seconds. Rain likely.
Mon..NW winds 15 to 25 kt. Wind waves 3 to 5 ft. W swell 10 to 13 ft. Slight chance of showers.
Tue..NW winds 15 to 25 kt. Wind waves 3 to 5 ft. W swell 9 to 12 ft.
PZZ500 221 Am Pdt Fri Mar 24 2017
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... Occasional gale force gusts are possible through the day today as a storm system impacts the region with strong southerly winds and rain. Seas will be rough with the frontal passage...but should begin to decrease by this evening. Expect northwest winds to return by Saturday morning before briefly becoming southerly on Sunday as another weak system moves over the waters.

7 Day Forecast for Marine Location Near Lakeport, CA
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location: 39.03, -123.02     debug


Area Discussion for - Sacramento, CA
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Fxus66 ksto 241008
afdsto
area forecast discussion
national weather service sacramento ca
308 am pdt Fri mar 24 2017

Synopsis
Rain and mountain snow today into Saturday with mountain travel
impacts likely. Gusty winds today as well. Brief break in
weather mid weekend. Another system possible Sunday and Monday
with another round of mountain travel impacts. Next storm clips
norcal and sierra Wednesday and Thursday.

Discussion
Pacific frontal band currently pushing into northwest california
bringing precipitation as far southeast as a red bluff to santa
rosa line. Southerly winds starting to pick up in the northern
sacramento valley with mfr to sac surface gradient up to 10 mb.

Some discrepancy between models as to MAX wind speeds this
morning but depending on model, can find wind criteria throughout
the sacramento valley so have left current advisory through early
this evening as is for now. Significant snowfall over the
mountains still on tap at pass levels so keeping winter storm
warning as is for now as well. Main frontal clouds and precip
looks to be over norcal during maximum heating today and with lack
of significant instability forecast by models, have removed
threat of thunderstorms northern sacramento valley for this
afternoon. Cloud cover this morning will preclude valley fog and
combined with cooler airmass will bring cooler daytime highs
today. Post frontal showers tonight will diminish on Saturday with
upper ridging bringing brief drying period Saturday night. Cloud
cover in advance of next upstream system should minimize valley
fog threat. Next upstream pacific system quickly displaces upper
ridge eastward into the great basin on Sunday with precipitation
spreading across the north state as early as mid day with frontal
passage through norcal around Sunday evening. Snow levels with
this system will create mountain travel impacts again Sunday into
early Monday but this system should be a bit drier so snowfall
totals should be a bit lower. Upper ridging begins amplifying
over the eastern pacific on Monday pushing shower threat north and
east to the northern mountains and sierra cascade range by Monday
evening while the valley gets another break in the precipitation.

Stabilization under the ridge along with northerly flow at all
levels should preclude thunderstorm development Monday afternoon
or evening.

.Extended discussion (Tuesday through Friday)
drier weather Tuesday as norcal comes under the influence of
upper ridging. Surface high pressure from the epac building
through oregon into the great basin will increase n-s surface
pressure gradient over interior norcal leading to some breezy
northerly wind Tuesday. Short wave trough moves through Wednesday
into Thursday bringing a threat of showers mainly over northern
and eastern portions of the forecast area.

Aviation
Pac fnt movs thru intr norcal tda with wdsprd MVFR and areas
ifr with LCL lifr. Areas sly sfc wnd gsts to 30 kts or gtr in
cntrl vly tda with swly gsts to 40 kts or gtr ovr hyr trrn.

Sto watches/warnings/advisories
Winter storm warning until 5 am pdt Saturday for west slope
northern sierra nevada-western plumas county/lassen park.

Wind advisory from 9 am this morning to 7 pm pdt this evening
for carquinez strait and delta-central sacramento valley-
motherlode-northeast foothills/sacramento valley-northern
sacramento valley-northern san joaquin valley-southern
sacramento valley.

Winter storm warning until 5 am pdt Saturday for shasta lake
area / northern shasta county.



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
ANVC1 - 9416841 - Arena Cove, CA 37 mi51 min ESE 16 G 26 52°F 54°F1015.8 hPa
46014 - PT ARENA - 19NM North of Point Arena, CA 53 mi39 min SSE 29 G 39 53°F 1013.6 hPa52°F

Wind History for Arena Cove, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Ukiah, Ukiah Municipal Airport, CA12 mi13 minS 11 G 204.00 miRain Fog/Mist50°F46°F89%1016.4 hPa

Wind History from UKI (wind in knots)
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Last 24hrCalmCalmCalmCalm363SE6S8SW14SW11SW5E3CalmSE3CalmSE5CalmS3SE7SE6SE5S9
G16
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1 day ago334355Calm----W11
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NW8N6NE3N5E3CalmCalmCalmCalmCalmCalmCalmCalm
2 days agoW4CalmE6S75SE9
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S6SE4S5E5CalmSE3S3S5SE3SW3CalmCalmNW3N3W3Calm

Tide / Current Tables for Arena Cove, Pacific Ocean, California
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Arena Cove
Click for Map
Fri -- 03:00 AM PDT     2.44 feet Low Tide
Fri -- 05:13 AM PDT     Moonrise
Fri -- 07:11 AM PDT     Sunrise
Fri -- 08:51 AM PDT     5.36 feet High Tide
Fri -- 03:43 PM PDT     0.16 feet Low Tide
Fri -- 04:05 PM PDT     Moonset
Fri -- 07:31 PM PDT     Sunset
Fri -- 10:16 PM PDT     4.81 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
3.73.12.62.42.63.23.94.65.25.454.33.2210.30.20.61.42.53.64.44.84.7

Tide / Current Tables for Salt Point, California Current
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Salt Point
Click for Map
Fri -- 12:57 AM PDT     -0.75 knots Max Ebb
Fri -- 04:29 AM PDT     0.00 knots Slack
Fri -- 05:11 AM PDT     Moonrise
Fri -- 07:10 AM PDT     Sunrise
Fri -- 07:15 AM PDT     0.78 knots Max Flood
Fri -- 10:06 AM PDT     -0.00 knots Slack
Fri -- 01:08 PM PDT     -1.23 knots Max Ebb
Fri -- 04:04 PM PDT     Moonset
Fri -- 05:00 PM PDT     0.00 knots Slack
Fri -- 07:29 PM PDT     Sunset
Fri -- 08:01 PM PDT     1.06 knots Max Flood
Fri -- 11:09 PM PDT     -0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-0.6-0.7-0.7-0.5-0.20.20.60.80.70.50.1-0.5-1-1.2-1.1-0.9-0.5-00.50.91.110.60.1

Weather Map and Satellite Images
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Weather Map
wmap_P
IR Satellite Image from GEOS
west_satellite

GOES Local Image of CentralWestCoast    EDIT
Geos

Wind Forecast for Sacramento, CA (10,2,3,4)
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Ground Weather Radar Station Beal AFB, 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.