Tuesday, April25, 2017 L-36.com


Marine Weather and Tides
Carnelian Bay, 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 6:06AMSunset 7:50PM Tuesday April 25, 2017 7:41 AM PDT (14:41 UTC) Moonrise 4:57AMMoonset 6:05PM Illumination 0% Phase: New Moon; Moon at 29 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 Carnelian Bay, CA
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location: 39.22, -120.09     debug


Area Discussion for - Reno, NV
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Fxus65 krev 251033
afdrev
area forecast discussion
national weather service reno nv
333 am pdt Tue apr 25 2017

Synopsis
Near to slightly below normal temperatures, breezy to windy
conditions, and periods of light showers will be the main story
through Thursday. A dry cold front will bring a shot of colder air
for Friday, with breezy north winds making it feel even colder.

Drier conditions are expected heading into the weekend with a
warming trend possible.

Short term
The main adjustment to the short term forecast was to substantially
raise winds Wednesday afternoon and evening in the surprise valley,
northwestern nevada, and in west-central nevada.

Instability showers out in pershing and churchill counties are
finally diminishing in coverage as an upper disturbance slides off
to the east. Elsewhere, west to northwest breezes have been slow
to diminish as colder air filters into northeast california and
western nevada this morning behind the disturbance. For the rest
of today, the region gets into a lull in precipitation and wind
before fast zonal flow aloft resumes on Wednesday as another wave
moves into the pacific northwest.

Wednesday, shower chances will increase again as the aforementioned
wave moves by to the north. Forcing mainly misses to the north;
however, with residual moisture having trouble scouring out between
systems it won't take much to bring light showers to the region.

Still, the best shot will remain north of i-80 as light warm air
advection adds to the forcing there. Snow levels are expected to
jump substantially tonight and Wednesday so travel impacts due to
snow look minimal, even at the higher elevation northern sierra
passes, especially given the light precipitation amounts that are
expected.

Of more impact than precipitation Wednesday will be winds. The
wave going by to the north may not bring much forcing for
precipitation; however, the wave is shown in simulations to be
close enough to push another frontal boundary through northeast ca
and western nv Wednesday afternoon and evening. Model soundings
and MOS guidance pinpoint areas north and east of reno for the
strongest winds, with the front and winds aloft encouraging good
mixing up through 700 mb or so. Winds aloft are not overly supportive
of downsloping in the lee of the sierra and they do not increase
much through the mixed layer. Therefore, the situation is more
indicative of a gradient wind event with strong sustained winds
versus large wind variation due to gusts. With all this in mind
and consistency in MOS east of reno (lovelock/fallon) for the last
couple days, confidence is high for wind advisory conditions
(sustained winds 30-40 mph, gusts 45-55 mph) Wednesday afternoon
and evening for northwestern nv and west-central nv.

Elsewhere, including the reno-sparks area, confidence is lower
and west-northwest flow aloft does not generally support winds as
strong as farther east... Although is will certainly still be quite
breezy. One exception could be far southern mono county where
northwest flow aloft can allow for stronger winds along highway
395 south of lee vining.

On Thursday, breezy northwest winds continue although they should
be lower than on Wednesday. Snyder

Long term Friday through Monday...

not much change to the long term period this morning as the models
are consistent through the weekend at least. Next week is a
different story. Friday will still be a chilly day with temps
running 10 degrees below average behind a backdoor cold front. North
to northeast winds will make it feel even colder with highs only
into the 40s and 50s across the area. Friday night will be cold with
ne sierra ridge winds quite gusty at times.

Then the east pacific ridge noses eastward for a bit into the
weekend. Temps will warm Saturday into Sunday with the northeast
winds becoming more west by Sunday. We are expecting a few degrees
of warming each day, perhaps 15 degrees overall.

Early next week, the GFS and ec are now showing another backdoor
cold front for Monday afternoon into Monday night with another
cooldown in store. Their ensembles are not as aggressive, but the
main message is consistent. The east pacific ridge will likely
remain offshore and limit any warm periods to something typical for
spring and only lasting a couple days. This will likely be the
pattern into early may. Wallmann

Aviation
Some gusty NW winds today, but not as strong as yesterday with
peak gusts at area terminals 20-25 kts.VFR conditions are also
expected tonight and into 12z wed.

Winds are expected to increase tonight over the ridges with mtn wave
turbulence increasing. Some isolated pockets of llws are possible,
especially near ktvl due to terrain channeling. Winds will increase
for all terminals Wednesday with mtn waves shallow and trapped.

Surface winds near 25 kts with gusts to 35 kts from the w-nw for all
terminals. Exception will be near highway 95 corridor including klol-
knfl-khth where sustained winds of 35 kts and gusts near 45 kts are
possible. Wallmann

Rev watches/warnings/advisories
Nv... Wind advisory from 1 pm to 8 pm pdt Wednesday nvz001-004.

Wind advisory from 11 am to 8 pm pdt Wednesday nvz005.

Ca... Wind advisory from 11 am to 8 pm pdt Wednesday caz070.

For more information from the national weather service visit...

http://weather.Gov/reno


Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Truckee-Tahoe, CA7 mi57 minN 010.00 miA Few Clouds27°F26°F100%1016.6 hPa
Carson City Airport, NV19 mi47 minN 010.00 miFair37°F24°F60%1015.9 hPa
South Lake Tahoe, Lake Tahoe Airport, CA22 mi49 minN 010.00 miFair30°F27°F88%1015.3 hPa

Wind History from TRK (wind in knots)
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Last 24hrS9S5SW4W5W10SW10
G15
SW10W11
G18
W9
G17
W10
G14
W8
G14
SW6SW7
G15
SE3CalmW5NW9
G15
SW5SE3SW3W5CalmSE3Calm
1 day agoCalmN3CalmSW11
G16
S12
G18
SW9
G21
SW12
G18
SW18
G24
SW12
G17
SW12
G15
SW11
G19
SW11
G20
SW7W3W4CalmCalmCalmSW10
G15
S8S6S9SE4S11
G15
2 days agoCalm--------S15
G20
SW19
G30
SW16
G22
SW15
G21
S15
G22
S10S12
G17
N5CalmS10
G18
S9SE4S7S9
G14
S7
G11
CalmNW5SW4SW8

Tide / Current Tables for Sacramento, Sacramento River, California
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Sacramento
Click for MapNote: These data apply only during low river stages.

Tue -- 02:06 AM PDT     0.19 feet Low Tide
Tue -- 06:03 AM PDT     Moonrise
Tue -- 06:15 AM PDT     Sunrise
Tue -- 06:44 AM PDT     2.98 feet High Tide
Tue -- 03:00 PM PDT     -0.02 feet Low Tide
Tue -- 07:10 PM PDT     Moonset
Tue -- 07:29 PM PDT     2.58 feet High Tide
Tue -- 07:52 PM PDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.60.30.20.41.22.22.832.82.41.91.30.80.40.1-00.31.122.52.62.31.91.4

Tide / Current Tables for Sacramento #4, Sacramento River, California
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Sacramento #4
Click for Map
Tue -- 02:07 AM PDT     0.19 feet Low Tide
Tue -- 06:03 AM PDT     Moonrise
Tue -- 06:15 AM PDT     Sunrise
Tue -- 06:45 AM PDT     2.97 feet High Tide
Tue -- 03:00 PM PDT     -0.03 feet Low Tide
Tue -- 07:10 PM PDT     Moonset
Tue -- 07:29 PM PDT     2.58 feet High Tide
Tue -- 07:52 PM PDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.60.30.20.41.22.12.832.82.41.91.30.80.40.1-00.31.122.52.52.31.91.4

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 Reno, NV (10,2,3,4)
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Ground Weather Radar Station Reno, NV
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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.