Marine Weather and Tides
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 7:02AM||Sunset 4:34PM||Saturday December 7, 2019 12:16 PM PST (20:16 UTC)||Moonrise 3:16PM||Moonset 3:20AM||Illumination 83%|
7 Day Forecast for Marine Location Near Silver Springs, NVHourly EDIT Help
Area Discussion for - Reno, NV  (on/off)  Help NOTE: mouseover dotted underlined text for definition
FXUS65 KREV 071125 AFDREV
Area Forecast Discussion National Weather Service Reno NV 325 AM PST Sat Dec 7 2019
A winter storm will impact the region today with strong gusty winds, heavy wet mountain snow, and periods of mainly rain in the valleys tonight through Sunday morning. Quiet weather with valley inversions is forecast most of next week. A weak storm with rain or snow is possible late week.
First wave of moisture associated with our incoming winter storm has arrived across the Sierra with CalTrans road cams showing snow covered passes. Snow levels are currently bouncing around the 6000-6500' level with some slushy accumulations evident around Lake Tahoe level.
Overall no significant changes with the forecast in terms of expected snowfall amounts. See the Winter Storm Warning for detail on expected snowfall totals through Sunday. The current wave of moisture will peak by mid-morning with a steady rise in snow levels (7000' Tahoe Basin and 7500' in Mono county).
Expect slow and difficult travel across Sierra passes this morning due to snow covered and slushy roads. Conditions will get worse this afternoon as a stronger, more intense band of moisture moves through. This portion of the storm will feature dynamic forcing from the upper jet and surface cold front as the upper shortwave arrives. This will also be the period when snow levels descend to around 6000' by late afternoon/early evening.
Travel impacts will become more widespread due to the lowering snow levels and more intense snowfall rates with a few lightning strikes also possible. Definitely want to avoid travel through the Sierra during this time if at all possible. This will also be the peak period for spillover rainfall across western Nevada with minor flooding in poor-drainage areas possible if rain rates are intense. A changeover to wet snow is likely above 5000' with an inch or two of slushy accumulations possible for foothill areas.
Current timing for the stronger rain/snow band looking to move into Lassen and Plumas counties around 2pm, then reaching the I-80 corridor around 4-5pm. Mono county will see this band arrive across the north about 10pm and push through Mammoth Lakes by daybreak Sunday. Behind the front, snow showers will continue under a cold unstable airmass with snow pellet showers possible mainly across mountains but W Nevada valleys could see some light snow accumulation that could impact travel.
Strong and gusty winds are also expected today as the upper jet passes across the Sierra and western Nevada. Some peak wind gusts of 40-50 mph range have already been observed across the Tahoe Basin and along the Highway 395 corridor across western Nevada and into Mono County.
Although continuous high winds aren't expected with this storm, it will produce sudden spikes of strong wind gusts as the lower atmosphere mixes. This will be most pronounced this afternoon ahead of the cold frontal passage. Periods of peak gusts of 45-50 mph are expected today particularly across the Carson Valley and wind prone locations along the Highway 395/I-580 corridor. As such have issued a Wind Advisory for portions of western Nevada including North Valleys, Reno, Carson City, and Carson Valley.
Primary impacts with these winds include: Dangerous lake conditions for Tahoe and Pyramid Lake, high profile vehicle restrictions for Hwys 95 and 395/I-580, and aviation concerns (see Aviation discussion). These winds will be strong enough to blow around any outdoor holiday decor, so make sure they are secured or taken indoors unless you want to see that inflatable reindeer take flight. Fuentes
LONG TERM. Monday onward .
The week ahead looks fairly quiet on the weather front, especially compared to what we have been dealing with lately. A ridge begins building into the west for the first part of the week, with the greatest concern being developing inversions as the upper elevations warm quicker than lower valleys. This will bring limited mixing and ventilation, with potential air quality concerns. Model forecast soundings are looking less likely for fog/stratus development outside of early morning hours in the typical locations. Simulations show drier air working into the region behind the exiting system, lessening chances. Luckily, the ridge doesn't hang around long, with better ventilation the remainder of the week.
A weak passing wave on Wednesday could bring a quick shot of light rain/snow to the region. Even though it isn't much, it also doesn't take much snow to create travel headaches. Another fast moving, weak system could bring additional rain/snow next weekend, but this does not look like a major storm by any stretch. -Dawn
Winds are beginning to increase this morning, which are expected to further strengthen today ahead of a cold front. These winds are likely to bring wind shear and turbulence to the region. The one good thing -- winds should finally clear the low stratus and fog that has been stubborn to erode in many valleys. Peak southerly wind speeds will occur from approximately 19z-01z along the eastern Sierra front where gusts could reach 35-45 kts. Mountain wave turbulence is anticipated as the polar and subtropical jet streams collide over the Sierra by this afternoon. Ridgetop southwesterly wind speeds will be sustained at 50-70 kts.
Prefrontal valley rain and mountain snow early this morning, will taper back to mainly over the Sierra by mid-morning as the southerly flow increases and limits spillover into western Nevada. This will also bring snow levels up with only rain anticipated at terminal sites through this evening. A cold frontal passage will once again drop snow levels with rain transitioning to snow at KTRK/KTVL around 03z this evening with a mix of rain and snow at KMMH by the evening, turning to snow between 03-06z. For all western Nevada terminals, including KRNO, only rain is expected. The heaviest rain and snow rates will be along the cold front from 00z-07z north of US-50 and 04z-12z south of there. Expect low ceilings and visibility with widespread terrain obscuration. -Dawn
REV Watches/Warnings/Advisories. NV . Winter Storm Warning until noon PST Sunday above 6500 feet in NVZ002.
Wind Advisory from 11 AM this morning to 7 PM PST this evening NVZ003.
Lake Wind Advisory until 7 PM PST this evening for Pyramid Lake in NVZ004.
CA . Winter Storm Warning until noon PST Sunday above 5500 feet in CAZ071.
Winter Storm Warning until noon PST Sunday above 7000 feet in CAZ073.
Winter Storm Warning until noon PST Sunday above 6500 feet in CAZ072.
For more information from the National Weather Service visit . http://weather.gov/reno
Weather Reporting StationsEDIT (on/off)  Help NOTE: Click on distance to see the station location on a map
Airport ReportsEDIT (on/off)  Help Click EDIT to display multiple airports. Follow links for more data.
|Fallon, Naval Air Station, NV||20 mi||20 min||SSE 20 G 28||10.00 mi||Partly Cloudy and Breezy||56°F||39°F||55%||1009.8 hPa|
Link to 5 minute data for KNFL
Wind History from NFL (wind in knots)
|1 day ago||Calm||Calm||NE||NE||Calm||E||E||Calm||NE||N||Calm||Calm||Calm||Calm|
|2 days ago||N||NW||Calm||S||S||S||SW||S||SW||Calm||Calm||Calm||Calm|
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GEOS Local Image of CentralWestCoast 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.
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Wind Forecast for Reno, NV (15,3,4,5)(on/off)  Help
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