Updated: 9:15 PM MST on February 12, 2016
Mostly cloudy. Lows 17 to 27.
Partly sunny. A slight chance of snow showers in the morning. Highs 33 to 40.
Mostly cloudy. A slight chance of snow in the evening...then a chance of snow after midnight. Snow accumulation around 1 inch. Lows 17 to 27.
Mostly cloudy with a chance of snow. Highs 35 to 42.
Mostly cloudy with a chance of snow showers. Lows 19 to 29.
Partly sunny with a slight chance of rain showers and snow showers. Highs 37 to 44.
Partly cloudy. Lows 18 to 28. Highs 36 to 45.
Mostly cloudy with a chance of rain and snow. Lows 21 to 30.
Cloudy with a chance of rain and snow. Highs 35 to 42.
Mostly cloudy. A slight chance of rain and snow. Lows 13 to 23. Highs 35 to 44.
236 PM MST Fri Feb 12 2016
... Snow and wind to impact travel this weekend into Monday...
A series of storm systems will bring wintry weather to the region
this weekend into Monday. The first storm will bring a round of
light snow to the central mountains and Montana and Wyoming
Highland border regions on Saturday with light snow
accumulations. A second storm will bring a prolonged period of
snow to the central mountains and upper snake and eastern
Highlands Sunday into Monday. Snow accumulations Sunday and Monday
are expected to range from 2 to 5 inches in Highland valleys with
5 to 10 inches at pass level. Snow accumulations along the
Interstate corridor are expected to range from a trace around
Burley to up to an inch from Idaho Falls to the Montana border. In
addition... strong southwest winds Sunday and Monday with gusts up
to 40 mph will create difficult travel for high profile vehicles
and areas of blowing and drifting snow for passes such as Galena
Summit... Pine Creek Pass and Teton Pass.
... Record high temperature set at Stanley ID...
a record high temperature of 50 degrees was set at Stanley ID today.
This ties the old record of 50 set in 2011.
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Area forecast discussion National Weather Service Pocatello Idaho 915 PM MST Friday Feb 12 2016 Short term...tonight through Monday night. A quick update this evening to correct an errant weather grid. Otherwise...everything looks to be on track as the next Pacific storm system is advancing into/through western Washington/Oregon at this time. See previous discussion below. Huston An upper level ridge is currently in place across southeast Idaho...maintaining dry weather and above normal temperatures above valley inversions. This ridge will quickly retreat eastward overnight as a quick-moving disturbance slides eastward across the northern rockies late tonight and Saturday. As a result...a gradual increase in snow shower activity will be found across the central mountains and Montana and Wyoming border Highland areas on Saturday...with amounts generally an inch or less. A second wave will provide a more substantial increase in snow shower activity for Sunday...as this second system will have the benefit of a greater supply of attendant moisture. The central mountains and upper snake/eastern Highlands will receive the most snowfall with this activity and for these areas snowfall is expected to be falling through the day Sunday. Snowfall will quickly taper off as one descends down in elevation towards the snake plain and eastern Magic Valley where rain and rain/snow showers are anticipated. Snowfall accumulations along the Interstate corridor on Sunday are expected to range from a trace in the Burley area to closer to one inch from Idaho Falls to the Montana border with higher amounts towards Monida Pass. Snow accumulations for the eastern Highlands Sunday are expected to be in the 2 to 5 inch range...with northwest slopes favored. Slightly less snowfall for the central mountains. Winds will be another impact associated with this system. Southwest winds will increase into the 20 to 30 miles per hour range with higher gusts by Sunday afternoon...creating some difficult travel for high profile vehicles. This wind will also likely create areas of blowing snow...particularly at pass level. Moist northwest flow is expected to persist Sunday night and through Monday...with snow showers continuing particularly across the eastern Highlands and Wyoming border region. Winds will remain elevated with the potential for blowing snow at pass level to continue. Additional accumulations Monday are expected to be similar to those on Sunday. A Winter Weather Advisory may be required for the eastern Highlands as the event draws nearer to highlight potential impacts...as travel and recreation will be negatively impacted on Sunday and Monday. Ad/hedges Long term...Tuesday through Friday. Upper ridge shows signs of shifting east Tuesday per GFS and European model (ecmwf). GFS ensemble members having a hard time with evolution of upstream trough/cutoff low in the east Pacific. European model (ecmwf) favors a deeper low than operational GFS...which maintains a more progressive...open trough. Despite the uncertainty of upper-level features the timing of onset of precipitation is virtually the same...which is Wednesday night. GFS...being the more progressive of the 12z runs...ends most of the precipitation with the passage of the 500mb trough late Thursday night whereas the European model (ecmwf) depicts the upper low lifting across California and into Idaho around that same time period...and thus keeps wet conditions over the region through about Friday morning. Temperatures continue to look warmer than normal through most of the week. Hinsberger && Aviation...with upper ridging shifting to the east today and no widespread fog/stratus field over the snake plain...expect VFR conditions at the terminals through the period. Models bring through a middle and upper cloud ceiling in the overnight hours with southerly winds increasing near sunrise tomorrow. Conditions should inhibit fog/stratus development tomorrow morning. Hinsberger && Pih watches/warnings/advisories... none. && $$