Friday, August18, 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 6:04AMSunset 7:30PM Friday August 18, 2017 9:14 AM PDT (16:14 UTC) Moonrise 2:44AMMoonset 5:21PM Illumination 14% Phase: Waning Crescent; Moon at 26 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
7 Day Forecast for Marine Location Near Goldfield, NV
   Hourly   EDIT   Help
location: 37.31, -117.29     debug

Area Discussion for - Las Vegas, NV
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxus65 kvef 181601 aaa
area forecast discussion
national weather service las vegas nv
900 am pdt Fri aug 18 2017

Synopsis Tranquil weather will continue over most of the region
today and Saturday before a circulation along the southern
california coast begins to pull moisture from arizona into southern
nevada late Sunday into early next week. This will lead to a return
of showers and thunderstorms to the region.

Update E-w deformation zone draped across northern inyo county
and central nevada will be the area to watch today. Models showing
slightly better instability today especially over the higher terrain
of far northern lincoln county. The deformation zone still progged
to shift further north, more along highway 50 Saturday. Elsewhere,
dry and warm. No update necessary.

Prev discussion 252 am pdt Fri aug 18 2017

Short term Through Saturday night
little change in the weather can be expected today and Saturday. A
weak circulation near the southern california coast will remain
fairly stationary today and Saturday with only light dry southerly
flow over most of the region. A deformation zone on the northeast
periphery of the circulation will remain draped across the southern
sierra and central nevada. Limited mid level moisture and instability
in this zone will lead to a slight chance of light showers or brief
thunderstorms this afternoon then it will shift farther north on
Saturday. The southern sierra may still see a few showers or
thunderstorms Saturday afternoon. The rest of the region will remain
dry with temperatures climbing a few more degrees today then
leveling off on Saturday.

Long term Sunday through Thursday.

Closed low off the coast of southern california will be the main
influencer of our regional weather through the long term period.

On Sunday, moisture will begin advancing northward on the eastern
periphery of the low, bringing increased chances for thunderstorms
to mainly mohave county and perhaps parts of the spring mountains
and mojave preserve by late in the afternoon. Things get more
interesting (and unfortunate for eclipse watchers) Sunday night into
Monday as deeper moisture advects northward into the eastern two-
thirds of the forecast area. This increasing moisture, combined with
increasingly favorable jet dynamics (both in the left exit region of
300mb jet streak & in the northeast quadrant of the closed socal
low) will promote widespread lift late Sunday night and continuing
for much of the day Monday. This means showers and thunderstorms may
develop overnight Sunday along with widespread cloud cover, and
linger into Monday afternoon, potentially affecting the visibility
of the eclipse Monday morning. I boosted pops into the slight
chance chance category for much of the region during this time, but
based on MOS trends, this may not be high enough and subsequent
shifts may need to boost pops further during this time period.

Additionally, widespread cloud cover and areas of shower activity
will keep Monday temperatures a few degrees cooler than normal.

Tuesday and Wednesday will also be convectively active with
lingering moisture and instability while the closed socal low still
circulates to our west. Added pops to much of the region for this
time period, mainly excluding the western mojave desert where
overall moisture and instability looks to remain quite marginal.

Confidence decreases Thursday onward as the low will either eject
northeastward and wash out, or push through the mojave desert in a
more compact form. The latter would result in another day of
thunderstorm activity, while the former would tend to promote drier
air pushing in from the west. With low confidence, made few changes
beyond midweek and kept temperatures near normal.

Aviation For mccarran... A typical east-southeast wind component
can be expected this afternoon early evening followed by a light
southwest component overnight. For the most part wind speeds will
remain below 10 knots.VFR conditions can be expected in all
approach corridors.

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 or
thunderstorms this afternoon and early 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 today and Saturday. The rest of the
region will see mostly clear skies and generally light winds. A
circulation along the southern california coast begins to pull
moisture from arizona into southern nevada late Sunday into early
next week. This will lead to a return of showers and thunderstorms
to the region.

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

Update... Pierce
short term aviation fire weather... 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
   EDIT       (on/off)   Help   NOTE: Click on distance to see the station location on a map

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Tonopah, Tonopah Airport, NV52 mi79 minN 1010.00 miA Few Clouds69°F33°F26%1016.3 hPa

Wind History from TPH (wind in knots)
Last 24hr3SE4N94S6CalmSE3E4E6SE3SW4W5N5NW3N9N6N8N7N6N9N9N9N10N6
1 day agoSE6E9S53SE7SE19
2 days agoCalmW84--NE7W845CalmS3CalmSW3SW7E7SE7S7CalmCalmNW5N6N6N9N3NE4

Tide / Current Tables for
   EDIT   RT Ports Option   Weekend mode (on/off)   (on/off)   Help
Tide / Current Tables for
   EDIT      (on/off)   Help
Weather Map and Satellite Images
       (on/off)   Help
Weather Map
IR Satellite Image from GEOS

GOES Local Image of Southwest    EDIT

Wind Forecast for Las Vegas, NV (12,3,4,5)
      (on/off)   Help

Ground Weather Radar Station San Joaquin Valley, CA
   (on/off)   Help
weather_mapweather_map weather_map

Ad by Google

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.