Area Forecast Discussion
Issued by NWS Elko, NV

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FXUS65 KLKN 231137

Area Forecast Discussion
National Weather Service Elko NV
337 AM PST Mon Jan 23 2017

.SYNOPSIS...The storm system will gradually exit the Silver State
from northwest to southeast today. Additional light to moderate
snow amounts are possible, especially across central and eastern
Nevada. Monday night and Tuesday, a weak system will support snow
showers near and along the Ruby Mountains. After that, high
pressure will build in with valley inversions likely. This will
result in very cold nighttime temperatures.


.SHORT TERM...This morning through Wednesday.

This morning through Monday afternoon. Frontal boundary is slowly
pushing east with moderate to heavy snow bands accompanying it.
Additional accumulation are likely, especially on a line from
Austin, to Eureka, Spring Creek, and NE through Wells. These
places could easily pick up several more inches of snow through
the morning. The frontal boundary is also slowing as continued
surges of moisture and embedded impulses slide along/just ahead of
the front toward the northeast. Eventually forcing will lift
north of the area and the snow intensity will diminish. The band
of snow should slide southeast toward northeast Nye and White Pine
Counties through the morning. This is when these locations should
see their most substantial snowfall.

Monday afternoon through Tuesday. A closed h5 low or at least cold
and moist trof will slide and clip northeast Nevada. This will
bring a cold and moist north/northwest flow into the Jarbidge and
Ruby mtns. Due to this cold/moist flow, upslope snow will likely
develop along and upwind of any mtn barriers. Given the froude
number showing blocked flow, light to moderate snow will possibly
back into Jiggs, Lee, Spring Creek, Star valley and could result
in a few additional inches of snow. This will need to be watched
closely for a winter weather advisory. Jarbidge will also likely
see a couple inches of snow from the upslope snow.

Tuesday night through Wednesday. Any upslope snow will gradually
end overnight into Wednesday. This will allow for a cold and drier
northerly flow to overspread the region. Temps will likely fall
below guidance, due to the possibility of valley inversions
forming. However, there is some concern another system may slide
from the NW to SE across the area during the long term.

.LONG TERM...Wednesday night through Monday.

Embedded short wave impulse within deep northwest flow will move
over the region Wednesday night and Thursday bringing light snow
showers to Nevada. Flow will be favorable for upslope enhancement
but moisture may be lacking for significant windward
accumulations across northern Nevada. Ridging pattern begins to
establish Friday across the region. Dry conditions are through the
weekend into next week. Below normal temperatures will exist for
the latter half of the week into early next week. Highs are
expected to be in the lower to upper 20s with lows in the single
digits and below zero.


.AVIATION...Widespread snow showers will continue to move through
state this morning bringing occasional LIFR to VLIFR conditions
at KEKO, KELY and KTPH through the morning hours. Gusty winds over
Central and portions of Northern NV will reduce visibility at
times in snow showers. The back edge of the heavier snow has
pushed east of KWMC so expect improving conditions through 18Z.
Similarly, conditions will gradually improve at KEKO, KELY and
KTPH later this morning as the winter storm exits the state.
Lingering light snow showers, low ceilings in addition to mountain
obscurations will exist through this evening. Gusty winds at KELY
and KTPH will subside today and especially this afternoon.


Winter Storm Warning until 4 AM PST early this morning for
Humboldt County-Northern Elko County-Northern Lander County and
Northern Eureka County-Ruby Mountains/East Humboldt Range-South
Central Elko County-Southern Lander County and Southern Eureka
County-Southwestern Elko County.

Winter Weather Advisory until 10 AM PST this morning for
Southeastern Elko County.

Winter Storm Warning until 4 PM PST this afternoon for
Northeastern Nye County-Northwestern Nye County-White Pine



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