Monday, May22, 2017

Marine Weather and Tides
Soda Springs, 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 5:38AMSunset 8:16PM Monday May 22, 2017 10:38 AM PDT (17:38 UTC) Moonrise 2:52AMMoonset 3:42PM Illumination 9% 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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7 Day Forecast for Marine Location Near Soda Springs, CA
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location: 39.31, -120.33     debug

Area Discussion for - Reno, NV
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Fxus65 krev 220948
area forecast discussion
national weather service reno nv
248 am pdt Mon may 22 2017

Warm temperatures will increase snow melt this week, leading to
flooding near some creeks and streams flowing out of the sierra.

The walker river through the mason valley and yerington is expected
to reach major flood stage early this week. Some minor flooding
is also likely for the upper portions of the carson and truckee
river systems.

Short term
The primary concern for the near future continues to be the
expected flooding for main stem rivers, mainly the walker river
in and downstream of the mason valley. Some locations along the
walker river may experience record flooding by Tuesday; now is
the time to act! See the latest flood products and the hydrology
section at the bottom of the forecast discussion for updates.

There were some modest changes made to the forecast mainly
concerning thunderstorms for Tuesday and Wednesday. Essentially,
thunderstorms were largely removed for Tuesday limiting formation
to the sierra crest of mono county. Still, there could be a
build-up or two as far north as meyers, but chances are less than
10%. This was done to account for the thermal trough placement and
general under-performance of convergence zones over the last
couple of days. Wednesday looks more promising with a more
favorable thermal trough position and added instability from an
approaching wave. Expect isolated convection for mono/mineral
counties as heating aids in surface instability.

Winds increase ahead of the approaching wave on Wednesday with
breezy conditions from northern mono/mineral counties to the
oregon border. Expect gusts in the 30-40mph range with highest
gusts along the frontal boundary. Precipitation will be limited,
so no widespread rain, but sufficient instability for isolated
thunderstorms north of interstate 80. Chances of thunderstorms
were expanded from lassen county since westerly flow will aid in
development of isolated thunderstorms along the lassen convergence
zone. The one foil for thunderstorms north of interstate 80 could
be the amount of shear; it may be difficult for initial updrafts
to become self-sustaining. Boyd

Long term Thursday through Sunday...

a low pressure trough will be dropping into the northern great basin
Thursday and Friday and then moving slowly east out of the region
over the weekend. Temperatures will cool back closer to normal
Friday before rebounding over the weekend. Gusty west winds will
accompany the front for one more day on Thursday, especially for
areas along and south of i-80. The dry flow around the southwest
periphery of upper low will bring dry and stable conditions to most
of the area. There may be a few showers far northern areas as upper
low swings by Thursday night into Friday. Beyond this weekend, there
is low confidence. However there are some signs for increasing
thunderstorm potential with temperatures 5-10 degrees above normal.

A lot will depend on location of developing upper low off the
west coast. Hohmann

Light winds andVFR conditions through Tuesday. The only risk of
thunderstorms will be late Tuesday along the sierra crest in mono
county. Coverage will be isolated and probably not affect kmmh. A
front will be dropping south into the region wed-thu for increasing
winds and potential turbulence. Isolated showers and thunderstorms
will be limited mainly to mono-mineral county and north of i-80
Wednesday afternoon/evening. Hohmann

Warm temperatures through the middle of the week will accelerate
snowmelt in the sierra. The increased snowmelt will produce varying
levels of impacts next week. Anything from minor and nuisance
flooding of small creeks and streams to major flooding for the
mainstem walker river through the mason valley.

Make sure to check the most recent forecasts and observations if you
live near a stream or river or plan to hike or camp near any streams
or rivers. Remember that snowmelt flows can be highest in the
evening and overnight in the smaller streams.

Walker river:
* major flooding is likely for the mainstem walker river through
mason valley. Current projections show similarities to the
flooding that occurred in 1983 and 1986. The walker river could
begin reaching into minor flood stage as early as Tuesday with an
estimated short range crest fri-sat with continued flows in excess
of major flood stage.

* impacts to mason and yerington are largely dependent upon
unpredictable channel breaches along the river. If a breach does
occur, impacts could be much more widespread and severe in mason
and yerington. In any event, now is the time to act; it may be too
late once the waters rise above moderate flood stage.

* minor/moderate flooding is possible on the east and west forks of
the walker river. This includes antelope and smith valleys. Higher
flows are also likely below weber reservoir but the expected
extent is unknown at this time.

Truckee river:
* minor flooding impacts possible from lake tahoe to truckee. Most
of the minor flooding impacts will be confined to areas right
along the river which may impact some riverfront yards, basements,
campgrounds, and bike paths.

* the flows along the remainder of the truckee river will remain
high, swift, and cold! These conditions can always be dangerous
and it is recommend to keep a safe distance from the river.

Carson river:
* broad minor flooding in the the southwestern carson valley between
centerville and genoa.

* minor flood stage as early as Tuesday night with daily peaks
occurring each night through the week. Flows will remain cold and
swift on all portions of the river.

Eastern sierra creeks and streams:
* best estimates for flows this week coming out of unregulated
eastern sierra creeks and streams are likely to be 2-2.5 times
current flows with smaller creeks likely to see 3 times current

* creeks and streams will run fast and very cold, bringing the risk
of hypothermia for those without protective gear. Flood water will
likely inundate pasture land, some campgrounds, cover hiking and
biking trails and roads leading into the high country.

Rev watches/warnings/advisories
Nv... Flood watch through Wednesday evening nvz002-003.

Ca... Flood watch through Wednesday evening caz071>073.

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


Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Truckee-Tahoe, CA10 mi1.9 hrsN 010.00 miClear52°F37°F58%1025.7 hPa
Emigrant Gap, Blue Canyon Nyack Airport, CA20 mi46 minENE 410.00 miFair72°F36°F27%1014 hPa

Wind History from TRK (wind in knots)
Last 24hr--NE3CalmS12SW10
1 day agoCalmCalm--S4--SW8
2 days agoCalmNW4----SW4--SE7S6SE6NE5NW8S3SE3CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalm

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

Mon -- 03:57 AM PDT     Moonrise
Mon -- 04:53 AM PDT     2.80 feet High Tide
Mon -- 05:48 AM PDT     Sunrise
Mon -- 01:05 PM PDT     0.12 feet Low Tide
Mon -- 04:45 PM PDT     Moonset
Mon -- 05:26 PM PDT     2.21 feet High Tide
Mon -- 08:17 PM PDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

Tide / Current Tables for Sacramento #4, Sacramento River, California
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Sacramento #4
Click for Map
Mon -- 03:57 AM PDT     Moonrise
Mon -- 04:54 AM PDT     2.79 feet High Tide
Mon -- 05:48 AM PDT     Sunrise
Mon -- 01:05 PM PDT     0.12 feet Low Tide
Mon -- 04:45 PM PDT     Moonset
Mon -- 05:26 PM PDT     2.20 feet High Tide
Mon -- 08:17 PM PDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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

GOES Local Image of CentralWestCoast    EDIT

Wind Forecast for Reno, NV (13,3,4,5)
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Ground Weather Radar Station Reno, NV
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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 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 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.