Saturday, December7, 2019
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Marine Weather and Tides
Pahrump, NV

Version 3.4
NOTICE
10/9/2019 Updated the Marine Zones.
9/4/2019 Fixed the weather maps due to NOAA moving them.
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.
6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at L-36.com. Allen

Sunrise 6:39AMSunset 4:30PM Friday December 6, 2019 9:58 PM PST (05:58 UTC) Moonrise 2:38PMMoonset 2:10AM Illumination 78% Phase: Waxing Gibbous; Moon at 10 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 Pahrump, NV
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location: 36.41, -116     debug


Area Discussion for - Las Vegas, NV
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FXUS65 KVEF 070405 AAA AFDVEF

Area Forecast Discussion National Weather Service Las Vegas NV 810 PM PST Fri Dec 6 2019

SYNOPSIS. A Pacific weather system will bring increasing clouds another round of mountain snowfall to the Sierra tonight through Sunday. Periodic light rain showers are possible across the whole region over the weekend. Conditions dry out next week with high pressure building across the west coast.

UPDATE. Evening radar is picking up on a few light showers/virga over the Colorado River Valley and western San Bernardino County. Overall, coverage has been on the decrease but still can't rule out a light sprinkle over southern Inyo, northern San Bernardino, and portions of Clark County. Measurable rainfall is not expected and these light showers will likely diminish after midnight. Just a few minor tweaks to the forecast to account for the light showers.

PREV DISCUSSION 320 PM PST Fri Dec 6 2019

DISCUSSION. Current satellite imagery shows a deep, closed low centered a few hundred miles west of of northern California. This Pacific weather system will bring a period of active weather to the region starting tonight. Most of the impacts with this system will be felt in the eastern Sierra where another decent round of snow is expected as a plume of modest moisture is directed into the Sierra. There wasn't much adjustment to the forecast snow amounts from the previous forecast, with 5-10 inches expected above 7,000 feet and a foot or more above 9,000 feet. That said, the Winter Weather Advisory looks good for the expected snow amounts. Southwesterly flow down stream of the trough axis will usher a second, more potent, plume of moisture into southern California tonight through Sunday. The poleward edge of this moisture will spread a swath of cloud and few showers into the western Mojave Desert area this evening before bringing mountain showers Saturday and Sunday. The warm, moist plume will raise snow levels closer to 9,000 feet for areas along and south of I-15, which will limit any significant new snow from accumulating in the Spring Mountains. The best chances for rain in the valleys (including Las Vegas) will be Sunday as a weak cold front slides southward. Precip amounts are expected to be light overall.

Aside from the precip potential, there will be a periods of strong winds, especially in the Sierra. Gusty downslope winds are possible down to the mid-slopes of the eastern Sierra tonight through early Sunday. There may be some precip drag, so the high-end gusts near 60 MPH may be tempered a bit. Elsewhere, gusty southwest winds are expected to be much lower. No wind products are expected to be hoisted, as the Winter Weather Advisory, in addition to snow, covers winds impacts.

Beyond the weekend, a high-amplitude ridge will setup over the region bringing a period of tranquil, mild weather. This will last through at least the middle of the week before another, albeit weaker, system brings a quick shot of winds.

AVIATION. For McCarran . Quiet weather can be expected through the weekend. Northeasterly winds could approach 10 knots at times this afternoon, but lighter winds are expected on Sunday. Overnight winds should be from the usual south southwesterly direction at less than eight knots.

For the rest of southern Nevada, northwest Arizona and southeast California . Patchy low clouds in Inyo, Esmeralda, and Lincoln counties will cause mountain obscurations early this morning before finally burning off around mid morning. Otherwise, expect VFR conditions through the weekend. Expect a few areas of breezy northerly winds today, with the strongest winds of 15 to 25 knots with higher gusts in the Colorado River Valley. Winds will be a bit lighter Sunday, but still 10 to 20 knots in the Colorado River Valley.

SPOTTER INFORMATION STATEMENT. Spotters are encouraged to report any significant weather or impacts according to standard operating procedures.

UPDATE . Gorelow DISCUSSION . Boothe AVIATION . Czyzyk

For more forecast information . see us on our webpage: https://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
Mercury, Desert Rock Airport, NV15 mi66 minNNE 510.00 miA Few Clouds46°F41°F83%1020.4 hPa
Nellis AFB - Indian Springs Auxiliary Airfield, NV21 mi2 hrsN 010.00 miFair48°F42°F83%1021.1 hPa

Link to 5 minute data for KDRA

Wind History from DRA (wind in knots)
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Last 24hrCalmCalmCalmE7E5NE5NE4E7NE4NE3E6E8SE10SE8SE7SE11SE9SE5W6CalmE4SE7SE4NE5
1 day agoW10SW10W10W9W8W6NW4SW5SW4W4W3S3CalmSW63SW6S6SW4CalmCalmCalmCalmCalmNW4
2 days ago--------------------CalmCalmW6CalmN3W3SW53CalmSW3CalmCalmSW8W9

Tide / Current Tables for
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Tide / Current Tables for
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Weather Map
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wmap_P
GEOS Local Image of Southwest    EDIT
NOTE: East coast views moved to GEOS-16. They are experimental and not well supported by NOAA so they may not be correct so be warned. This change required redoing a large amount of the GOES code. If the image you are expecting is not showing, please let me know. You may need to use the EDIT function to update your location.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Las Vegas, NV (0,6,7,8)
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Ground Weather Radar Station Las Vegas, NV
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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.