A powerful cold front moved through Idaho and very strong winds occurred behind the frontal passage.   Sustained wind speeds over 40 mph were widespread with gusts in the 60 to 70 mph range.   Many road closures due to blowing dust or blowing snow occurred with many trees downed.   Widespread power outages occurred as well.

High Wind in LOWER SNAKE RIVER PLAIN, IDAHO
From 02-APR-18 09:00:00 to 02-APR-18 22:00:00 (MST-7)
Magnitude: 56.00 EG
Property damage: 150.00K
Crop damage: 0.00K
Reported by: Newspaper

Winds of 40 to 60 mph following a cold frontal passage caused extensive power line damage.   Over 400 customers in American Falls, Fort Hall, Chubbuck and Blackfoot were without power on the afternoon of the 2nd.  A large tree was downed in Pocatello as well as one in Blackfoot.   Interstate 86 closed for a short time east of American Falls in both directions due to reduced visibility from blowing dust with multiple collisions.   It was closed from around 5 pm to 845 pm.  A wooden stockade fance blow down along Highway 39 near Moreland.   A tractor trailer was blown over on Highway 39 north of Aberdeen.    Damages were estimated near $150,000.

High Wind in UPPER SNAKE RIVER PLAIN, IDAHO
From 02-APR-18 09:00:00 to 02-APR-18 22:00:00 (MST-7)
Magnitude: 59.00 MG
Property damage: 275.00K
Crop damage: 0.00K
Reported by: ASOS

A powerful cold front moved through Idaho and caused significant damage.   Wind gusts of 50 to 70 mph were common throughout the day on the 2nd  especially in the afternoon.  Interstate 15 was closed from exit 118 to exit 143 from Idaho Falls to Roberts due to blowing dust caused from the winds.  A boat was blown off a trailer near Ririe on US Highway 26.   Several trees were reported downed in Idaho Falls including one that fell on top of Holy Rosary Elementary School.  Some structural damage was reported in Idaho Falls due to trees falling on homes.   Damage to power lines resulted in over 2,500 customers without power reported by Rocky Mountain Power.   Power poles were downed in Terreton with nearly 200 customers without power.  Power poles and lines downed in Iona.  A large evergreen tree in Idaho Falls uprooted and took down power lines.  Siding was ripped off one home in Ucon and one home in Ririe.   A shed roof was destroyed in Rexburg.   Damages from the winds was estimated at near $275,000 for the wind storm.

High Wind in CARIBOU HIGHLANDS, IDAHO
From 02-APR-18 09:00:00 to 02-APR-18 22:00:00 (MST-7)
Magnitude: 51.00 MG
Property damage: 65.00K
Crop damage: 0.00K
Reported by: AWOS

Strong winds behind a powerful cold frontal passage knocked down power lines in McCammon.    Rocky Mountain Power reported 715 customers in the city without power.   an irrigation pivot was blown over and damaged in Robin.

High Wind in UPPER SNAKE HIGHLANDS, IDAHO
From 02-APR-18 09:00:00 to 02-APR-18 22:00:00 (MST-7)
Magnitude: 63.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Wind gusts of 50 to 73 mph occurred behind the passage of a strong cold front.   Some power lines were downed in Chester with 353 customers without power.   Power line damage caused 679 customers in Teton to lose power.   US Highway 20 was closed 3 miles east of Island Park with several accidents due to the high winds causing blowing snow and low visibility.   State Highway 87 north of Island Park was also closed due to the blowing and drifting snow.

High Wind in EASTERN MAGIC VALLEY, IDAHO
From 02-APR-18 09:00:00 to 02-APR-18 22:00:00 (MST-7)
Magnitude: 56.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Wind gusts of 54 to 64 mph were widespread behind the cold frontal passage.   A tree was downed southeast of Dietrich.