Marine Weather and Tides
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 6:48AM||Sunset 6:47PM||Monday September 27, 2021 12:27 AM PDT (07:27 UTC)||Moonrise 10:34PM||Moonset 1:15PM||Illumination 67%|
7 Day Forecast for Marine Location Near Gabbs, NVHourly EDIT Help
Area Discussion for - Reno, NV  (on/off)  Help NOTE: mouseover dotted underlined text for definition
FXUS65 KREV 262132 AFDREV
Area Forecast Discussion National Weather Service Reno NV 232 PM PDT Sun Sep 26 2021
A cold front will bring increasing winds today through Tuesday with heightened fire weather and gusty lake wind concerns on Monday and much cooler temperatures by the middle of next week. Chances for light precipitation return next week, mainly in northeast California and near the Sierra.
* CHANGES: Issued Lake Wind Advisory for Lake Tahoe from midnight tonight to 5 PM PDT Tuesday. Also issued Lake Wind Advisory for Pyramid Lake from 8 AM PDT to 8 PM PDT Monday and Tuesday.
No significant changes to the forecast overnight. Winds will begin to increase today across much of the region ahead of an incoming cold front. As the front draws closer many areas will approach near critical fire weather conditions along the Sierra Front north up to the Oregon border. The strongest winds and longest duration of critical conditions are expected on Monday as the mostly dry cold front moves into northern California. Much of the region can expect wind gusts up to 30-40 mph on Monday. Some higher elevation areas across the Sierra crest could see gusts to near 70+ mph as jet winds drip south over the region. Fire Weather Watches have been upgraded to Red Flag Warning for Monday. More detailed information is included below in the Fire Weather section.
Most areas north of Highway 50 could see air quality improvement as the wind flow increases across the region through tomorrow. Any air quality improvements over Mono County will lag behind other northern areas until winds begin to shift more from the west and northwest later tomorrow evening.
As the cold front approaches closer Monday night, a few showers will be possible from around Interstate 80 northward. Most areas can expect minimal rainfall amounts less than a 0.10” with a few higher elevation areas of northern Lassen and Washoe Counties nearing 0.25” total rainfall. It is even possible early Tuesday morning that some areas over far northern Washoe County could see a light snow flurry above 6500’.
EXTENDED OUTLOOK through next weekend.
A gradual warming trend will follow as high pressure builds back into the region through the remainder of the coming week with an increasing southwest flow maintaining dry-stable conditions over the Sierra and western NV through the extended forecast period. Most simulations with recent ensemble cluster guidance pursues this same notion with high confidence that lighter winds prevail with no foreseeable chance of precipitation going into next weekend.
Temperatures will reach into more seasonal averages by the weekend with daytime highs in the high 70s to low 80s for lower valley areas with mountain valleys rising into the 60s to low 70s. Overnight temperatures the latter half of this week will still be on the chilly side. Most lower valley locations will see morning low in the 30s to low 40s with some higher mountain valley areas seeing lows dropping into the 20s. -Amanda
Areas of smoke and haze will continue to disperse east and northeast overnight ahead of an upper trough moving into the West Coast. Only those areas directly downwind of an active wildfire will see VIS/CIG impacts through the forecast period. Therefore, KCXP and KMEV could see MVFR conditions in smoke this evening. KTVL and KMEV could see VIS/CIG conditions fluctuating between MVFR and VFR through this evening.
Smoke could cause VIS/CIG conditions to fluctuate between MVFR and VFR at KMMH this evening into tomorrow morning as light W-SW winds continue to transport smoke from the KNP Complex in the Sequoia Nat'l Forest. Later tomorrow morning conditions vicinity of this terminal will steadily improve as SW winds increase and disperse smoke further east.
Expect increasing mountain wave turbulence along and east of the Sierra tonight with increased chances for LLWS continuing overnight into tomorrow. Strong winds are expected tomorrow with a gust potential of 30-40kts expected across area terminals as an incoming cold front draws closer to the region. The front is expected to push through early morning Tuesday between 09-12Z. A wind shift from the N-NW is expected to continue through Tuesday. Some visibility impacts are also possible mainly across KLOL, KNFL, and KHTH as post-frontal winds result in areas of blowing dust downwind of dry lake beds and sinks. -Amanda
* Dry and breezy conditions will bring near-critical fire weather conditions with gusts up to 30 mph this afternoon for some areas north of I-80.
* RED FLAG WARNING MONDAY: Strongest winds expected Monday afternoon and evening as a cold front approaches the region. Dry conditions and gusty winds will result in more widespread fire weather concerns.
* Cold front moves through the region Monday night into early Tuesday with a wind shift from the southwest to the northwest. This event is similar in timing and impacts as compared to the front last weekend, but wind speeds are a bit weaker.
Strong low pressure is moving into the Pacific Northwest, with increasing winds today across the region. Sierra ridge winds over will increase tonight for those elevations above 6500ft, so we have started the Red Flag Warning for the Tahoe Basin at midnight tonight.
Winds will continue to spread into the valleys and across the region Monday afternoon and evening as the cold front approaches. Red Flag Warnings for all other areas begin at 11am Monday. We will see widespread critical conditions with gusts 30-40 mph for the valleys, with strongest gusts over the ridges and wind prone areas along eastern slopes of the Sierra and Carson Range where we could see gusts up to 50 mph. Minimum humidity will be in the 8-15% range Monday afternoon along the Sierra Front, Tahoe, and up through Plumas, Lassen, and northern Washoe Counties, as well as into west- central Nevada. There will be a good 3-7 hours of windy/dry critical conditions during the afternoon-evening hours, but after the sun goes down, the wind event is not over.
The strongest winds of the event will occur overnight Monday into the early morning hours Tuesday as the front moves through the region. There will be some downslope enhancement of the winds with gusts up to 50 mph during this time, particularly along the 395 corridor and eastern slopes of the Carson Range. Even though the RH will be increasing during this time, the stronger winds will keep the high fire danger going through the night. A wind shift out of the north-northwest will be possible by roughly 1-4am early Tuesday morning for areas north of I-80.
The front will continue to track south across western Nevada through the day Tuesday with the strongest winds likely to be from Fallon- Hawthorne-Tonopah. Humidity will be higher behind the front, helping to somewhat mitigate fire concerns.
Precipitation will be limited due to the fast moving nature of the front with 0.10-0.25" of rainfall possible mainly from Susanville northward through Lassen and far northern Washoe Counties. Localized higher amounts near 0.40" are possible across the Lassen-Modoc county line. Even a some rain/snow mix is possible above about 6,500' Tuesday morning. Otherwise, a few spotty light showers are possible elsewhere. Fuentes/Hoon
REV Watches/Warnings/Advisories. NV . Lake Wind Advisory from 8 AM to 8 PM PDT Monday for Pyramid Lake in NVZ004.
Lake Wind Advisory from 8 AM to 8 PM PDT Tuesday for Pyramid Lake in NVZ004.
Red Flag Warning from 11 AM Monday to 5 AM PDT Tuesday NVZ420-421.
Red Flag Warning from 11 AM to 11 PM PDT Monday NVZ423-429-458.
Lake Wind Advisory from midnight tonight to 5 AM PDT Tuesday for Lake Tahoe in NVZ002.
CA . Red Flag Warning from 11 AM to 11 PM PDT Monday CAZ270-271-278.
Fire Weather Watch from Monday afternoon through Tuesday morning CAZ274.
Lake Wind Advisory from midnight tonight to 5 AM PDT Tuesday for Lake Tahoe in CAZ072.
Red Flag Warning from midnight tonight to 5 AM PDT Tuesday CAZ272.
For more information from the National Weather Service visit . http://weather.gov/reno
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|Fallon, Naval Air Station, NV||42 mi||32 min||SE 3||9.00 mi||Fair||60°F||27°F||28%||1013.6 hPa|
Link to 5 minute data for KNFL
Wind History from NFL (wind in knots)
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|2 days ago||NW||S||S||SW||S||SE||S||W||Calm||Calm||SW||Calm||NE||N||N||NE||NE|
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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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