Weather

731 
fxus65 kpih 060840 
afdpih 


Area forecast discussion 
National Weather Service Pocatello Idaho 
240 am MDT Monday Oct 6 2008 


Short term...today through Wednesday. 
Flattened upper ridge to slide over southeast Idaho today with 
mainly dry weather expected. A quick moving short wave in the 
westerly flow will slide to the north through the Panhandle on 
Tuesday with a cold front moving through the area and expect 
precipitation with this system to stay mainly north. Put in some 
isolated showers in extreme northern areas in central mountains 
and upper snake Highlands. The system Tuesday will usher in some 
cooler air from the north and expect a significant cool down 
Wednesday behind the front. Tuesday should be the warmest day in 
the short term with some breezy conditions both Tuesday and 
Wednesday in the strong zonal flow pattern. 
Gk 


Long term...Thursday through Monday. 
Models begin to diverge significantly by Thursday. Both GFS and ec 
drop a Canadian wave south ushering significantly cooler air by 
Thursday. Ended up dropping high temperatures significantly in the 
Thursday through Saturday time period. The GFS however is open 
with the upper trough driving it east quickly with very little 
precipitation whereas the ec is much stronger with the wave 
closing off an upper low in Nevada by Friday morning and having it 
over southern Idaho by Sunday. At this point the ec is extremely 
wet with this scenario Friday through Sunday with cold enough 
temperatures for decent snowfall. At this point will play it 
conservatively and go more with the open wave GFS solution with 
mainly cold temperatures and fairly dry with mainly mountain 
precipitation. Models tough to gage this time of year. 
Gk 


&& 


Aviation...upper ridging building up today will result in 
decreasing cloud cover. VFR conditions expected to prevail into Tuesday. 
Hedges 


&& 


Fire weather...an upper ridge will build into the Pacific northwest 
today...resulting in a little warmer and drier conditions. A cold 
front is expected to pass through Idaho Tuesday afternoon...with a 
few rain and snow showers in the central mountains Tuesday through 
Wednesday morning. Winds should become gusty by Tuesday afternoon. 
Humidity readings will drop on Wednesday in the wake of the cold 
front...especially in the central mountains. Hedges 


&& 


Pih watches/warnings/advisories... 
none. 
&& 


$$