879 
FXUS65 KBOI 101527
AFDBOI

Area Forecast Discussion
National Weather Service Boise ID
927 AM MDT Thu Oct 10 2019

.DISCUSSION...Upper level ridging is moving into the region 
today, helping to provide sunny skies and warming temperatures. 
The exceptions to the sunny skies are an area of low cloud from 
Prairie to Bliss to Filer to Hollister and points east, and 
scattered low clouds in eastern Valley County. These will erode 
this morning, leaving mostly sunny skies for the afternoon. 

Record lows were widespread this morning. For example, Boise hit 
23 degrees, breaking the previous record of 26 set in 1985, and 
Burns hit 9, breaking the record of 14 also set in 1985. Record 
lows are likely to occur again tonight, more so in the higher 
terrain than in the Snake River Plain, where a developing 
southeast wind will keep temps from really bottoming out tonight.

&&

.AVIATION...Mostly VFR with areas of low stratus in the Magic Valley 
burning off by noon. Mountain obscurations this morning. Clear skies 
this afternoon. Surface winds: W-NW 5-10 kts. Winds aloft at 10kft 
MSL: NNW 10-20 kts.

&&

.PREV DISCUSSION...
SHORT TERM...Today through Sunday...Record low temps this morning
and again Friday morning before a warming trend sets in later 
Friday through Sunday. Cold upper trough has moved well east of us
but has left behind a very dry air mass. Clear skies, light 
winds, and northerly flow aloft will be ideal for radiational 
cooling at night and record or near record low temperatures this 
morning and again Friday morning. Weak upper ridging Friday and 
Saturday before heights to lower due to weak incoming trough 
Sunday. Clouds and a slight chance of rain showers will develop in
Baker County Sunday afternoon. Southern areas will continue 
mostly sunny days through Sunday.

LONG TERM...Sunday night through Wednesday...Upper level ridge
will build across the Pacific Northwest starting Monday, bringing
a warming trend. Temperatures will warm to near or slightly above 
normal for Tuesday and Wednesday with high temperatures near 70 
in the lowest valleys.

&&

.BOI WATCHES/WARNINGS/ADVISORIES...
ID...None.
OR...None.

&&

$$

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DISCUSSION...SP
AVIATION.....AL
PREV SHORT TERM...LC
PREV LONG TERM....KA