Area Forecast Discussion
Issued by NWS Pocatello, ID

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FXUS65 KPIH 251413

Area Forecast Discussion
National Weather Service Pocatello ID
813 AM MDT Tue Apr 25 2017

.UPDATE...Adjusted snow levels lower to around 5000 feet
elevation in the Upper Snake Highlands and the east side of the
Upper Snake Plain. Observations are seeing around a half inch of
snow in the Rexburg area. RS


.PREV DISCUSSION... /issued 341 AM MDT Tue Apr 25 2017/

SHORT TERM...Today through Thursday. A low pressure system over
Wyoming will bring light valley rain and mountain snow over the
Eastern highlands extending slightly into the Eastern Snake river
plain today. The next strong surge of moisture will move over the
area on Wednesday. Lower elevations will receive .15 to .30
inches of rain with higher elevations receiving .30 to .50 inches
of precipitation. Elevations above 6000 feet will receive 3 to 6
inches of snow. Slushy snow will briefly get down as low as 5000
feet in some areas, particularly Wednesday morning. Expect
moderate to strong winds Wednesday into Thursday as well. Models
continue to show a weak low dropping over our Northeast areas on
Friday. The additional precipitation will likely put the Portneuf
river back to moderate flood stage by late Wednesday. The Bear
River will remain elevated and an increase is expected, possibly
near minor flood stage. The current minor flooding will increase
slightly through the period for the Bear river from Montpelier to
the border of Wyoming. The Snake river at Blackfoot will likely
approach minor flood stage if not reach it, particularly with the
increased releases from the Palisades reservoir today. Expect
below normal temperatures through the period.


LONG TERM...Friday through Tuesday.

The main low pressure area will move into the Great Plains on
Friday. However, quite a bit of moisture will continue to pour into
the back side of the low. So Friday remains unsettled with rain/snow
showers still possible for much of the area. Somewhat drier weather
settles in for the weekend. Moist northwest flow will continue so
there`s still a threat for showers especially in the high country.
Temps may rebound some, perhaps flirting with near normal temps over
the weekend. Looks like another system arrives early next week and
will bring another round of wet weather to the region.


AVIATION...A low pressure system over Wyoming will continue to
produce a threat for showers and low ceilings over the area. Best
chances are for PIH, IDA and DIJ. Expect brisk conditions today as

NOTE:  We continue to advertise AMD NOT SKED for KDIJ due to no data
coming from the observation site there. NWS is not responsible for
maintaining the sensor there, so we are not sure when that will be




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