Strong southerly flow aloft led to a record-breaking warm Tuesday in the Treasure Valley as highs climbed to 61° in Boise. This breaks a 105 year old record of 59° set back in 1918. Wednesday has been nearly as warm with temperatures soaring well into the 50 in the Boise area.
Our next system brings cooler temperatures and rain/snow showers overnight. While the valley will just see scattered light showers overnight due to a downslope wind, a steady rain overspreads the west central mountains. Snow levels will start around 6500 feet dropping to 4000 feet by Thursday morning. A Winter Weather Advisory is in effect through Thursday morning for the Sawtooth region, Frank Church Wilderness, and Big Lost Highlands. 1-3" of snowfall is expected up to 6000 feet, with 6"+ over 6000 feet.
Another disturbance will bring rain and snow showers to the valley Thursday night into Friday as much cooler air settles in. There could be a dusting or a coating of snow down to the valley floors.
The wind ramps up again ahead of the arrival of another storm on Friday. Pacific moisture arrives overnight Friday into Saturday mostly in the form of snow, however snow levels will rise Saturday night into Sunday. This means we could see some accumulation of snow in the valley Saturday night mainly on grassy surfaces in the valley with melting on Sunday.
In the central mountains, 2"-5" of snow is expected Saturday night into midday Sunday in places like, McCall, New Meadows and Idaho City.
Stay connected right here and or to my Facebook Page for updates on our weekend changes.
