Monday, June26, 2017

Marine Weather and Tides
Lone Pine, CA

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 5:39AMSunset 8:18PM Monday June 26, 2017 1:45 AM PDT (08:45 UTC) Moonrise 8:33AMMoonset 10:39PM Illumination 5% Phase: Waxing Crescent; Moon at 2 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 Lone Pine, CA
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location: 36.57, -118.08     debug

Area Discussion for - Las Vegas, NV
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Fxus65 kvef 260249
area forecast discussion
national weather service las vegas nv
749 pm pdt Sun jun 25 2017

Synopsis Conditions will finally begin to cool early this week
as a weather system moves across the western states. This system
will bring increased winds to much of the region, especially
Monday. Outside of a few isolated showers storms this afternoon,
dry conditions are expected this week.

Update Most of the weak shower activity that did try to get
going in lincoln and the sierra on a downward trend as main
moisture axis continues to shift northeast, and drier more subsident
air begins to push in. The main forecast concern for the rest if
the evening tonight is if the boundary layer will decouple and
allow winds to become light and variable or if breezy southwest to
west winds will remain through the overnight.

Prev discussion issued at 150 pm pdt Sun jun 25 2017

Short term Today through Tuesday.

Weak shower activity has developed across the higher terrain of
mohave county as expected this afternoon. Elsewhere, there have
also been some indications of virga over the nnss and lincoln
county while clouds have struggled to develop over the sierra.

Expect most of this activity to fizzle after sunset today with the
loss of heating.

Focus then turns to a trough that will push across the western
states Monday and Tuesday which will bring increased winds to the
region. These winds are expected to peak on Monday, with isolated
gusts in the 35 mph range across southern nevada and northwest
arizona and closer to 40 mph across the deserts of southeast
california. See the fire weather section for fire danger concerns.

This trough will also bring relief from the prolonged period of
excessive heat that we've been experiencing. The latest guidance
has cooled high temperatures yet again for Monday and as a result
i've dropped the high temperature forecast for las vegas to 108f.

It's going to be a challenge to tie the record for consecutive
days at or above 110f of 10 days (1961). With a current
temperature of 110f as of this writing, we currently stand at 9
days. Winds are expected to decrease slightly both Tuesday and
Wednesday with temperatures cooling another 2-3 degrees each day.

Long term Wednesday through Saturday.

By Wednesday, the ridge over the southwest will continue to be
suppressed a bit as the tail end of a trough drapes over much of the
western CONUS through the work week. Models are now indicating that
a impulse shortwave will develop off the coast of northern
california by Friday. The strength and impacts of this feature are
uncertain at this time as model variance is high for Fri and sat.

Temperatures will be approaching normals by Wed and remaining near
normal through the forecast period. Breezy southwest winds are
expected each afternoon with wind speeds 10 to 15 mph and gusts
around 20 to 25 mph. Wednesday afternoon, both the GFS and ECMWF are
showing a tight gradient over much of central mohave county. This
will cause some gusty southwest winds up to 30 mph Wed afternoon.

Otherwise, dry and mostly clear conditions through the rest of the
work week and into the weekend.

Fire weather Outside of a few isolated showers storms today,
dry conditions are expected this week. Conditions will finally
begin to cool early this week as a weather system moves across the
western states. This system will bring increased winds to much of
the region, especially Monday. This prompted a red flag warning
to be issued for Monday for portions of southern nevada and
northwest arizona. Winds do look borderline but with the hot
temperatures it's fairly easy for gusts to mix to the surface so i
left the rfw in place. Another concern is winds across the sierra
and san bernardino counties where gusts may approach 40 mph at
times which could lead to periods of red flag conditions in those

Hydrology Observed flows on unregulated creeks, specifically
independence creek, big pine creek and rock creek indicated flows
have decreased slightly since their peak flows occurred earlier this
week. Creeks, streams and rivers along the eastern sierra slopes of
inyo county as well as the owens valley will be flowing high and
fast through into at least early next week. Minor flooding could
occur near creeks as well as a few low water crossings on some
roadways. Remember, never drive through flooded roadways or around
barricades. Also, pastureland or farmland adjacent to creeks,
streams or rivers could experience areas of standing water.

Aviation For mccarran... Light winds generally out of the east
will veer southwest and increase this afternoon. Winds over 10kts
are anticipated by 23z today. Expect gusty west-southwest winds to
continue through much of the night, with gusts over 20kts possible
after 03z. There with a chance that winds will drop off for a brief
time between 10z and 15z and go light, however confidence is too low
at this time and did not include it in the current TAF forecast.

Gusty southwest winds will continue tomorrow, with stronger winds
anticipated after 18z Monday than what we should see today.

Otherwise, virga concerns in the mccarran airspace will be minimal
through the afternoon, andVFR scattered clouds should move away by

For the rest of southern nevada, northwest arizona and southeast
california... Winds will increase out of the west or southwest this
evening and overnight, with the strongest winds expected in san
bernardino county on the downslope side of the spring mountains.

After a brief lull Monday morning, west winds will pick back up
Monday late morning, and will be stronger than today. Otherwise,
isolated showers or virga are possible in the higher terrain this
afternoon, but widespread ceiling precip issues are not anticipated.

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

Update... ... ... ... ... ... ..Steele
short term fire weather... Wolcott
long term... ... ... ... ... ..Kryston
aviation... ... ... ... ... ... Allen
hydrology... ... ... ... ... ..Pierce
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
Bishop, Bishop Airport, CA57 mi1.8 hrsN 410.00 miFair77°F45°F32%1011.1 hPa

Wind History from BIH (wind in knots)
Last 24hrCalmCalmNW4NW7NW6N4NW5NW5544E9
1 day agoN5NW6N9W9NW5NW4W53NW4CalmW6CalmW66N17
2 days agoNW3CalmNW7NW6W6NW5--N73NW5W4W4S43W4--3W8NW8

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 (4,6,7,8)
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Ground Weather Radar Station San Joaquin Valley, CA
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weather_mapweather_map weather_map

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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.