During the day of February 4th light snow developed along a stationary front laying west to east across central Washington and into the Idaho Panhandle. This first wave of moisture brought with generally light snow accumulations, but this snow melted and subsequently froze on roadways causing multiple collisions along interstate 90 and caused authorities to close the highway near Post Falls for 2 hours .
A second wave of deeper moisture enhanced along this boundary during the evening and overnight hours and brought heavy accumulations to the Idaho Palouse and Central Panhandle Mountains of north Idaho by the morning of February 5th when accumulating snow snow began to  taper off or turn to rain. Valley snow accumulations of 4 to 6 inches were common near and along this stationary front, with lighter but still significant accumulations of 2 to 4 inches noted across the northern Idaho Panhandle.

Winter Weather in COEUR D'ALENE AREA, IDAHO
From 04-FEB-20 13:00:00 to 04-FEB-20 17:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Light snow accumulations during the afternoon of February 4th melted on the surface of Interstate 90 and then subsequently re-froze into a layer of ice. Law enforcement reported numerous slide offs and collisions prompting the closure of the westbound lane of interstate 90 for 2 hours.

Heavy Snow in CENTRAL PANHANDLE MOUNTAINS, IDAHO
From 05-FEB-20 02:00:00 to 05-FEB-20 16:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

The Lookout Pass ski resort reported 10 inches of new snow accumulation from this storm. The nearby Silver Mountain ski resort reported 9 inches of accumulation.

Heavy Snow in CENTRAL PANHANDLE MOUNTAINS, IDAHO
From 05-FEB-20 02:00:00 to 05-FEB-20 16:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

The COOP observer at Prichard recorded 6.0 inches of new snow accumulation from this storm.

Heavy Snow in CENTRAL PANHANDLE MOUNTAINS, IDAHO
From 05-FEB-20 02:00:00 to 05-FEB-20 16:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

The COOP observer at Kellogg recorded 4.0 inches of new snow accumulation from this storm.

Heavy Snow in CENTRAL PANHANDLE MOUNTAINS, IDAHO
From 05-FEB-20 02:00:00 to 05-FEB-20 16:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

The COOP observer at Elk River recorded 6.0 inches of new snow accumulation from this storm.

Heavy Snow in IDAHO PALOUSE, IDAHO
From 05-FEB-20 02:00:00 to 05-FEB-20 11:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

The COOP observer at Moscow recorded 4.5 inches of new snow accumulation from this storm.

Heavy Snow in IDAHO PALOUSE, IDAHO
From 05-FEB-20 02:00:00 to 05-FEB-20 11:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A weather spotter 4 miles south of Viola reported 7.1 inches of new snow accumulation from this storm before turning to rain during the afternoon.

Heavy Snow in CENTRAL PANHANDLE MOUNTAINS, IDAHO
From 05-FEB-20 02:00:00 to 05-FEB-20 16:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

An observer at St. Maries recorded 4.2 inches of new snow accumulation from this storm.

Heavy Snow in CENTRAL PANHANDLE MOUNTAINS, IDAHO
From 05-FEB-20 02:00:00 to 05-FEB-20 16:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

The COOP observer at Wallace recorded 5.9 inches of new snow accumulation from this storm.