Thursday, August17, 2017

Marine Weather and Tides
Goldfield, NV

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 6:03AMSunset 7:32PM Thursday August 17, 2017 10:26 AM PDT (17:26 UTC) Moonrise 1:47AMMoonset 4:22PM Illumination 21% Phase: Waning Crescent; Moon at 25 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 Goldfield, NV
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location: 37.31, -117.29     debug

Area Discussion for - Las Vegas, NV
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Fxus65 kvef 171634 aaa
area forecast discussion
national weather service las vegas nv
934 am pdt Thu aug 17 2017

Synopsis A weak area of low pressure over the western states
will provide a tranquil weather pattern and a slight warming
trend for most of our region through the weekend. The exception
will be the southern sierra and central nevada where limited
moisture will provide a slight chance of light showers or
thunderstorms. The next push of monsoonal moisture will be possible
into northwest arizona and southern nevada the beginning of next

Update Weak positive tilt trough extending from southern
california northeast to southern utah this morning. Compared to
yesterday, models indicating less moisture and instability over the
southern sierra nevada and central nevada. Slight chance pops over
the highest terrain this afternoon evening of inyo, esmeralda, nye
and lincoln counties looks reasonable. As an upper low develops near
the southern california coast Friday and Saturday there looks to be
a better chance of showers and thunderstorms across the
aforementioned area. The remainder of the region will be dry with
temperatures warming to above normal. No update necessary.

Prev discussion 255 am pdt Thu aug 17 2017

Short term Today through Saturday night.

Today will be a close repeat of Wednesday's mostly benign weather
and little change is expected Friday and Saturday. A weak trough
with a mid level circulation centered near the socal coast around
point conception will remain quasi-stationary through Saturday. A
deformation zone and mid level moisture extending from the southern
sierra across central nevada will result in a few high based showers
and thunderstorms each afternoon. The hrrr from 24 hours ago did a
pretty good job depicting what actually occurred Wednesday afternoon
and 15-25 pop values will be expanded slightly from the inherited
forecast across northern inyo, esmeralda central nye and northern
lincoln counties today through Saturday. The rest of the region will
remain mostly sunny with winds generally less than 15 knots and
temperatures rising 2-3 degrees each day today and Friday followed
by little change Saturday.

Long term Sunday through Thursday.

On Sunday, a weak closed low circulating over southern california
will be reinforced by an additional low diving south, resulting in a
deepening closed center off the southern california coastline by
early next week. This will induce a broad southerly flow across the
region, however, deepest moisture looks to remain mainly across
arizona. Nonetheless, cyclonic flow over the region along with
occasional perturbations within the flow will spark occasional
thunderstorm development across mohave county for much of next week.

It's possible, if the moisture comes in a little deeper than
advertised, that thunderstorm chances could expand to include the
eastern half of the forecast area. Meanwhile, further west across
the sierra and northern inyo county, divergent flow aloft will
support afternoon and evening thunderstorm activity each day through
midweek before the flow turns southwesterly later in the week,
bringing in drier and more stable air. Temperatures through the
period look to hover within a few degrees of seasonal normals.

For those with an interest in the upcoming eclipse, current outlook
is favorable for viewing (with specialized glasses of course) with
very few clouds mid-morning Monday. The only areas of concern are
across northern inyo county near the sierra which may see some
mountain induced cloud cover, and potentially across northern mohave
county which may see some scattered cloud cover.

Aviation For mccarran... An east-southeast wind component will
develop this afternoon and evening and speeds may occasionally
exceed 10 knots.VFR conditions can be expected in all approach

For the rest of southern nevada, northwest arizona and southeast
california... A circulation near point conception with mid-level
moisture and instability extending from near bishop california
across central nevada will lead to isolated high based showers and
thunderstorms this afternoon and evening. Cloud bases will generally
be 12-15 kft msl. The rest of the region will be mostly clear with
winds generally less than 15 knots.

Fire weather Limited mid level moisture and instability will
lead to a few showers or brief thunderstorms over the southern
sierra and central nevada zones each afternoon today into the
weekend. The rest of the region will see mostly clear skies and
generally light winds with temperatures climbing a few degrees each
day through Friday.

Spotter information statement Spotters are encouraged to report
any significant weather or impacts according to standard operating

Update... Pierce
short term fire weather aviation... Adair
long term... .Outler
for more forecast information... See us on our webpage:
http: weather.Gov lasvegas or follow us on facebook and twitter

Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Tonopah, Tonopah Airport, NV52 mi31 minVar 310.00 miFair79°F39°F25%1016.1 hPa

Wind History from TPH (wind in knots)
Last 24hrE9S53SE7SE19
1 day agoW84--NE7W845CalmS3CalmSW3SW7E7SE7S7CalmCalmNW5N6N6N9N3NE4SE6
2 days agoNW8NW9

Tide / Current Tables for
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Tide / Current Tables for
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Weather Map and Satellite Images
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Weather Map
IR Satellite Image from GEOS

GOES Local Image of Southwest    EDIT

Wind Forecast for Las Vegas, NV (13,3,4,5)
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Ground Weather Radar Station San Joaquin Valley, CA
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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.