Winnemucca, Nevada 7 Day Weather Forecast

Wx Forecast - Wx Discussion - Wx Aviation

623
FXUS65 KLKN 042016
AFDLKN

Area Forecast Discussion
National Weather Service Elko NV
1216 PM PST Thu Dec 4 2025

.KEY MESSAGES...
Updated at 1056 AM PST Thu Dec 4 2025


* Light rain/snow showers are likely across Northern Nevada this
  evening through Saturday evening

* Gusty winds in northern Elko County Saturday

&&


.DISCUSSION...
(This afternoon through next Thursday)

WEATHER PATTERN OVERVIEW: Models continue to track a weak
shortwave riding upper level northwesterly flow into the area
Thursday night. High pressure to the west continues to direct
northerly flow in its eastern flank across the western CONUS.
Vorticity with this system is mediocre at best, but frontogenesis
over northern Elko County early Friday morning will help to
initiate snow showers over the area. This FG is collocated with
where highest snowfall amounts for valley floors exist in the
Owyhee River Basin and along the northern NV border. Models
continue to push accumulating snow further south into central NV
valleys in northern Eureka and White Pine counties.

Better moisture values continue to buoy this notion of snow
further south though accumulation totals for valley floors
continues to range from a dusting to less than inch. Better
accumulations exist for Elko County high elevations and peaks
where over a foot of fresh snowpack is forecast, especially for the
Ruby Mountains and Jarbidge Wilderness Area. Current model run
initiates snow over southeastern Elko County and northern Eureka
and White Pine Counties sooner this evening, but also initiates
a temperature warm up earlier Friday morning as winds back more
westerly. This warmup will increase snow levels above 6500 feet
and change precipitation for lower elevations to rainfall. A
tighter pressure gradient over northeastern NV will create
stronger surface winds Friday evening through Saturday. Cautious
driving should be practiced along I-80 and US-93 in Elko County.

Moisture advection from the west-northwest reinforces available
moisture over the northern half of the state Saturday AM keeping
chances for light shower activity over the area through Saturday
evening before a dryout Sunday AM. This decrease in moisture is in
response to the high pressure to the west encroaching on the SW
CONUS. Monday evening into Tuesday a shortwave slides its axis
along the northern NV border though lack of moisture and forcing over
the region confines precipitation chances to the northern border.
Models are beginning to resolve a large trough impacting the
Great Basin towards the end of next week though timing and impacts
are beyond the current forecast period.



FORECAST CONFIDENCE & DEVIATIONS: High confidence exists in a weak
system that will bring precipitation to northeastern and east-
central NV Friday through Sunday AM. Moderate confidence exists in
exact timing of snowfall and changeover to rain in the valleys as
well as accumulation amounts for elevation regions and peaks in
northeastern NV. Low confidence exists in the timing and impacts
of a large upper level trough layer next week. No major grid
changes are needed at this time.

&&


.AVIATION...

Intermittent MVFR and IFR conditions are expected Thursday
afternoon through Friday as CIGs lower and precipitation chances
in the form of snow and rain showers increase at KEKO by 03Z
Friday, followed by KBAM, KWMC, and KENV between 04Z and 07Z. CIGs
will lower to below 1000ft in the presence of rain and snow
showers lowering VIS in the process. Precipitation at all
terminals except for KTPH is forecast through Friday afternoon.

&&


.LKN Watches/Warnings/Advisories...
None.
&&

$$

DISCUSSION...99
AVIATION...99