The warm-up Sunday was so rapid that officials at the National Weather Service Office said, at one point, Boise temperatures rose nearly 10 degrees in 10 minutes.
Boise Schools are CLOSED Today, 1/09/2017 due to icy neighborhood streets, sidewalks, parking lots, flooding, etc. https://t.co/6Xz5Ja1sk8— Boise Public Schools (@BSDEducation) January 9, 2017
Power outages plagued several southern Idaho communities, leaving thousands of residents of McCall, Emmett and New Plymouth in the dark. Other outages were reported in Boise, Gooding, Jerome and Lincoln counties.
Forecasters at the NWS office in Boise said a weak weather trough will sweep into the region Monday night, followed by another warm front on Tuesday and Wednesday, bringing more above-freezing temperatures to the valleys and moderate snow to the central mountains.
Meanwhile, an urban and small stream flood advisory has been posted for northern Ada County and northeastern Canyon County, adding that flooding could hit some areas of Boise, Meridian, Nampa, Caldwell, Eagle, Kuna, Garden City, Star, Middleton and Hidden Springs
The long-term forecast for the Treasure Valley calls for a mix of rain and snow on Wednesday and an increasing chance of snow by next weekend.