Area Forecast Discussion
Issued by NWS Elko, NV
FXUS65 KLKN 222217
Area Forecast Discussion
National Weather Service Elko NV
217 PM PST Wed Feb 22 2017
.SYNOPSIS...The active weather pattern is continuing across the
Great Basin. Nevada is still receiving light accumulating snow
with moisture still streaming in from the west. The weather
will dry out Thursday, but remain cold and blustery. Additional
storm systems will be possible as we head into the weekend.
.SHORT TERM...Today through Saturday. The active weather pattern
is still persisting across the silver state with snowfall and
cloudy skies from the ample moisture.
Today through Thursday. The moisture will continue to stream
across the silver state as the storm system continues to progress
eastward out of the Great Basin. This will allow for a westerly
flow that will continue to produce moisture into the state causing
snowfall. As the system continues to pull eastward the wind flow
will become more favorable for west upslope flow across
northeastern Nevada. This should help to enhance snowfall across
the mountains in that area. Accumulation in northern Nevada should
be an inch to one and a half an inch in the valleys and less than
an inch for the rest of the CWA valleys. The mountain
accumulations of 2 to 4 inches are possible in northeastern
Nevada with over 6 inches possible in northern Elko county where
the upslope flow will be most favorable. Gusty winds will be
present in the silver state from the tight gradient of the storm
system. Highs should be in the 20`s to 30`s and with lows in the
single digits to 20`s.
The winter weather advisories continue to account for additional
snowfall from the tail end of the system with the exception of
northeastern Nevada which should still see significant
accumulations at least in the mountains.
Thursday night through Friday. As the storm system progresses ever
eastward the flow will shift from westerly to northwesterly
effectively cutting off the moisture feed from the Pacific. This
will allow for the state to get a brief period of mostly dry
weather with only some remnant snow flurries. The accumulations
will no be significant from the snow flurries. The winds will
become light as the pressure gradient slackens from the departure
of the storm system. Temperatures will remain cold with Highs in
the 20`s to 30`s and with lows in the single digits to teen`s.
Saturday. The next storm system should begin to intrude into the
Great basin on Saturday bringing moisture across the silver state.
This will spread from the northwest across the northern and into
portions of central Nevada through Saturday. This should lead to
snowfall however the amount of moisture is not significant
looking at this time with accumulations of less than in inch
expected. the temperatures will start to warm with highs possibly
reach the low 40`s in some spots.
.LONG TERM...Saturday night through Wednesday. Below normal
temperatures to continue through the period as cold northerly flow
aloft prevails over the region. Short wave troughs embedded in
this flow will bring occasional snow shower activity. The most
significant system will move through the area Sunday night and
Monday. However, even this system not expected to bring
significant snowfall with a general 1-2 inches in the valleys expected
at this time. Snow shower activity to end by Wednesday as upper
ridge begins to build in from the west. Highs mostly in the 30s to
the lower 40s during this period.
.AVIATION...Occasional snow shower activity to mainly impact the
KWMC/KEKO terminals during the next 24 hours. Conditions will
likely drop to MVFR or lower during snow shower activity. The
KTPH terminal will remain VFR, but gusty northwest winds of
15-25kts with gusts to 35kts will continue next 24 hrs.
.HYDROLOGY...The Humboldt river continues in flood stage from
Battle Mountain downstream through Winnemucca. Minor flooding at
Battle Mountain with moderate flooding from Comus downstream. The
flood crest expected to reach Winnemucca on Thursday with a slow
Winter Weather Advisory until 4 AM PST Thursday for Northern
Winter Weather Advisory until 4 PM PST this afternoon for
Humboldt County-White Pine County.