Monday, October18, 2021
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Marine Weather and Tides
Dyer, NV

Version 3.4
NOTICE
3/30/2021 -- ANZ330 has been split into ANZ331 and ANZ332. Click EDIT in Marine Forecast and select your new zone.
1/26/2021 -- The West Coast Satellite images havd been updated. They now use GEOS-17.
1/1/2021 -- The 7 day forecast are now working well. Thank you NOAA for your support.

Sunrise 7:08AMSunset 6:19PM Monday October 18, 2021 1:51 PM PDT (20:51 UTC) Moonrise 5:39PMMoonset 5:02AM Illumination 95% Phase: Waxing Gibbous; Moon at 13 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 Dyer, NV
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location: 37.67, -118     debug


Area Discussion for - Las Vegas, NV
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FXUS65 KVEF 181743 AFDVEF

Area Forecast Discussion National Weather Service Las Vegas NV 1044 AM PDT Mon Oct 18 2021

SYNOPSIS. Gusty winds will occur across much of the region today before beginning to relax late in the afternoon. Light precipitation is possible along a cold front in south central Nevada as well. Temperatures will be much cooler today and Tuesday. Less wind and gradually warming temperatures are expected through the latter part of the week.

UPDATE. Gusty south/southwesterly winds will continue through the remainder of the morning into the afternoon for much of the southeastern portion of our forecast area. Winds should begin to calm down around 5:00 pm PDT/MST and will remain relatively calm throughout the rest of the week. A cold front is currently moving southeast and is positioned along the line between the Amargosa Valley and Alamo in Nevada. There is a chance for isolated showers in Lincoln and Nye counties as this front moves through. This cold front will also result in below average temperatures for the next few days before we return to near normal later this week.

SHORT TERM. through tonight.

Potent upper low and frontal boundary over northern California bringing snow to the central and northern Sierra. Cold rain along with some light snow falling along the Sierra front from Minden north to Reno-Sparks. Low and associated cold front still progged to move quickly across the Great Basin today and into the central Rockies tonight.

For the southern Great Basin and Mojave Desert winds are the primary concern, especially in the lee of any mountain ranges. We did see a brief uptick in winds along the southern Sierra slopes of Inyo County between 7 and 9 pm last evening. However, since then winds have been underwhelming as precipitation band steadily moves through Mono County, nearing Inyo County. Will continue with our wind advisory until 8 am for the eastern Sierra slopes and Owens Valley. Winds increased right on schedule in the Spring Mountains as Kyle Canyon RAWS gusted to 49 mph between 11 pm and midnight. SW-NE orientated cross section through the Spring Mountains still suggests greatest potential for downslope winds surfacing along the northeast slopes will be between 4am and 9am this morning. Again, no change made to current wind advisory.

Latest guidance shows a stronger belt of southwest winds running from the western Mojave Desert into southern Nevada and northwest Arizona today. Due to the higher forecast in speeds/gusts a wind advisory will be issued for those areas through 4 pm PDT/MST this afternoon. For Las Vegas, expect the strongest winds to occur along the western and southern periphery of the valley later this morning.

Light precipitation can be expected along the cold front as it slices through Inyo and Esmeralda Counties this morning. That area will progress eastward across central Nye and Lincoln Counties through the day.

Cool, tranquil conditions tonight as high pressure aloft begins to to build in from the west.

LONG TERM. Tuesday through Sunday.

Due to a cold front pushing through the Desert Southwest on Monday, temperatures on Tuesday will drop to 8-12 degrees below seasonal normals. However, after the associated system pushes eastward out of our area, a ridge of high pressure will set up across the region that will both return dry weather and bring temperatures closer to normal through the week and into the weekend.

Forecast confidence continues to increase for next weekend. The GFS ensemble has moderated itself quite a bit, with the ECMWF ensemble finally buying into a trough dropping down from the Pacific Northwest. With both model sets coming closer to a consensus of a farther north trajectory of this forecast trough, the NBM has shifted impacts north as well, with slight PoPs highlighted in the far north and northwestern portions of our forecast area as opposed to the entirety of the southern Great Basin. Additional potential impacts would include a drop in temperatures and a return of gusty winds. Details remain hairy with regard to the timing, position, and strength of this trough, all of which will help determine how much, if any, impacts to expect and where. We will continue to monitor trends through the week.

AVIATION. For McCarran . Gusty southwesterly winds will continue to increase during the morning hours. The strongest winds are expected between 15Z and 21Z when gusts may exceed 35kts at times. Several hires models are signaling that there will be several waves of stronger winds moving across Southern Nevada today, which will likely cause some variability in both wind speeds and gusts through the afternoon. Winds will begin to gradually subside later this afternoon and evening but will remain breezy into the overnight period. A more typical diurnal pattern will return Tuesday and then continue into mid-week. A few high clouds will move across the terminal area this morning and afternoon but no operational impacts are expected.

For the rest of southern Nevada, northwest Arizona, and southeast California . Gusty south to southwest winds will continue through this afternoon for all TAF sites with the exception of KBIH where winds will be northerly. A few showers are possible mainly north and west of KBIH through 15Z this morning. Some lower visibilities are also possible at KDAG where gusty winds to 35kts may cause some blowing dust at times. All TAF sites should see decreasing winds this evening and overnight with more typical diurnal patterns returning for Tuesday. A few high clouds will also move across the area today but no operational impacts are expected.

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

UPDATE . Stessman SHORT TERM . Pierce LONG TERM . Varian AVIATION . Planz

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
Bishop, Bishop Airport, CA29 mi56 minN 16 G 2510.00 miFair60°F12°F15%1006.6 hPa

Link to 5 minute data for KBIH

Wind History from BIH (wind in knots)
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Last 24hrSE12
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2 days ago4NE34SE3S8S11S7SE4N3NW5W4NW4N5N7NW5NW7NW6NW7NW6N4NW5W4S4SE7

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NOTE: This section has been updated as of 1/26/2021. If the image you are expecting is not showing, please let me know. You may use the EDIT function to update your location.
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