Today's and yesterday's warnings in reverse chronological order.
Temperatures have warmed above freezing this morning and therefore the freeze warning has expired. Generally temperatures will be warmer tonight than was was seen this morning. Only very patchy areas will see below freezing temperatures.
With the arrival of a colder air mass, high pressure will build over the region with lighter winds overnight. This will allow temperatures to tumble well into the 30s across the northern Washington and Panhandle valleys with many areas experiencing the first frost or freeze of the season.
IDZ001-004-WAZ037-038-161600- /O.NEW.KOTX.FZ.W.0001.170916T0700Z-170916T1600Z/ Northern Panhandle-Central Panhandle Mountains- Northeast Mountains-Okanogan Highlands- 912 AM PDT Fri Sep 15 2017
...FREEZE WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM PDT SATURDAY...
The National Weather Service in Spokane has issued a Freeze Warning...which is in effect from midnight tonight to 9 AM PDT Saturday.
* Temperatures...upper 20s to lower 30s.
* Timing...late tonight into early Saturday morning.
* Impacts...Below freezing temperatures are expected for a significant period of time which could kill sensitve vegetation.
* Locations...Bonners Ferry, Priest River, Eastport, Kellogg, Pinehurst, Deer Park, Chewelah, Newport, and Republic.
A Freeze Warning means sub-freezing temperatures are imminent or highly likely. Cover or protect outdoor plants until temperatures warm above freezing.
Winds have decreased and relative humidity has increased and as a result red flag conditions are not widespread and should end shortly. Therefore the red flag warning will be allowed to expire at 8 pm PDT.