Updated: 11:28 am MST on February 8, 2016
Partly cloudy. Highs 38 to 47. Southeast winds up to 10 mph.
Mostly clear. Lows 27 to 32. East winds 10 to 15 mph.
Sunny. Highs 44 to 49. Breezy. Southeast winds 10 to 20 mph.
Mostly cloudy. Patchy fog. Lows 27 to 32. Southeast winds around 10 mph.
Decreasing clouds. Patchy fog in the morning. Highs 39 to 44. Southeast winds 10 to 15 mph.
Partly cloudy. Lows 29 to 35. Highs 39 to 48.
Mostly sunny. Highs 50 to 55.
Mostly cloudy. Lows 31 to 36.
Partly cloudy with a 20 percent chance of rain showers. Highs 48 to 53.
Mostly cloudy. Lows 29 to 34. Highs 46 to 53.
Personal Weather Stations [Add your weather station!]
Location: NonFedAWOS, Mountain Home, ID
Updated: 1:15 PM MST
|Temperature: 37 °F||Dew Point: 30 °F||Humidity: 75%||Wind: ESE at 13 mph||Pressure: 30.60 in||Hourly Precipitation: 0.00 in||Windchill: 29 °F||Graphs|
Location: Reverend's Wx, Glenns Ferry, ID
Updated: 1:48 PM MST
|Temperature: 42.8 °F||Dew Point: 32 °F||Humidity: 65%||Wind: NE at 12.1 mph||Pressure: 29.92 in||Hourly Precipitation: 0.00 in||Windchill: 36 °F||Graphs|
MSN Maps of:
|Temp:||Dew Point:||Humidity||Wind||Pressure||Hr Precip||-|
Area forecast discussion National Weather Service Boise Idaho 923 am MST Monday Feb 8 2016 Discussion... satellite...webcams and surface observation showing low clouds fog extending from eastern Idaho through Twin Falls towards Glenns Ferry and potentially into the Camas Prairie. This should linger through noon then start to diminish. Forecast soundings for the Boise area different than yesterday in that the lower airmass is not saturated like it was indicating yesterday...so based on that and full sun this morning...dont expect it to move into the upper Treasure Valley. Ridge continue to amplify and warmer air still expected to move in around 700mb keep inversion in place. Current forecast has this trend...so no changes expected. Outside of the St/fog...temperatures remaining above normal. && Aviation... mainly VFR. Surface based temperature inversion will persist through at least Wednesday night due to high pressure aloft over the intermountain west. For the next few days expect areas of IFR/LIFR fog and low stratus in the Snake River Valley during the night and through early afternoon...with patchy valley fog in the kbno...kbke and kmyl areas. Daytime heating will provide enough mixing to dissipate the fog and stratus by 21z...but will redevelop again in the evening. Surface winds variable 10 kts or less. Winds aloft northwest 10-20 knots up through 10k feet mean sea level. && Air stagnation... inversion to continue to stregthen at least through midweek with warming temperatures at 700mb. Transport winds remaining light easterly at the surface at under 10 miles per hour then shifting light northerly 5-10kft. Mixing heights expected around 1000-1500 feet through Tuesday. && Previous discussion... short term...upper ridge still building...and strengthening the inversion. Several weather differences from last night at 09z. An area of fog/stratus has formed in the Magic Valley and slowly expanding West. Fairfield/Idaho is much colder than last night...near zero this morning vs middle 20s last night when winds were near 15 miles per hour. Winds have become NE at Jerome/Idaho draining from the cold Camas Prairie. With MOS guidance continuing to forecast NE wind we can also expect a continuation of cold temperatures in the Camas Prairie through Tuesday. As for the fog/stratus...we see that NAM and nambc are the only models that keep maximum temperatures down throughout the snake basin today and Tuesday. That suggests cold foggy air will spread over nearly all of the lower snake basin. But those two models also show Idaho City colder than the upper Treasure valley today which is probably incorrect. No other models do this. Yesterday Idaho City had a high of 52 vs only upper 40s in the Treasure valley...and similar temperatures are expected today. No precipitation through Tuesday. Light east winds today and Tuesday...except moderate NE near Jerome/ID. Long term...Tuesday night through Monday...inversion will remain in place through Friday under a high amplitude upper level ridge. Did adjust temperatures a bit higher especially on Wednesday as model sounding are showing the stratus deck breaking up. Increasing east- southeasterly flow across the region on Thursday/Friday ahead of the next upper level trough off the coast will also limit fog/stratus coverage. Temperatures will reach the lower 40s Wednesday through Friday except in the lower Treasure Valley. High temperatures above the inversion will be in the 40s and lower 50s. The upper trough moves inland Friday night/Saturday but weakens significantly by the time it reaches the intermountain west. 00z GFS doesn/T even have the trough making it that far inland. 00z European model (ecmwf) does bring in the though though but with very little precipitation. The upper ridge rebuilds over the western Continental U.S. Beginning Sunday which looks to last through the middle of next week. Temperatures will continue to be above normal Friday through Monday. && Boi watches/warnings/advisories... Idaho...none. Or...none. && $$ Weather.Gov/Boise Discussion...CR aviation.....Ja air stagnation...CR previous short term...lc previous long term....jds