A fast moving cold front initiated widespread thunderstorms across northern Utah, with many of them producing severe wind gusts and causing property damage. In addition, some strong synoptic-scale winds were observed behind the cold front.

Thunderstorm Wind in TOOELE, UTAH
From 21-APR-11 11:10:00 to 21-APR-11 11:10:00 (MST-7)
Location: (DPG)MICHAEL AAF DUG
Magnitude: 51.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

The Playa Station sensor recorded a wind gust to 59 mph, while the Upper Cedar Mountain sensor recorded a max gust of 58 mph. Both of these sensors are in the Dugway Proving Ground mesonet.

Thunderstorm Wind in BOX ELDER, UTAH
From 21-APR-11 11:30:00 to 21-APR-11 11:33:00 (MST-7)
Location: LAKESIDE
Magnitude: 63.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

A line of thunderstorms produced strong winds on the western edge of the Great Salt Lake, with maximum recorded wind gusts of 73 mph at Lakeside Mountain, 70 mph at Gunnison Island, 63 mph at the Utah Test and Training Range, and 59 mph at the I-80 at Grassey sensor.

Thunderstorm Wind in MORGAN, UTAH
From 21-APR-11 11:30:00 to 21-APR-11 11:30:00 (MST-7)
Location: GATEWAY
Magnitude: 55.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

A sensor at Snowbasin Resort recorded a wind gust of 63 mph.

High Wind in GREAT SALT LAKE DESERT AND MOUNTAINS, UTAH
From 21-APR-11 12:00:00 to 21-APR-11 19:30:00 (MST-7)
Magnitude: 62.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Strong synoptic scale winds were observed in the Great Salt Lake Desert and Mountains behind the cold front. The maximum recorded wind gust across the area was 71 mph at Wendover Point of Entry. In addition, strong gusts were observed in the Dugway Proving Ground mesonet, with max gusts of 70 mph at Callao, 66 mph at Causeway, 65 mph at Faust, and 64 mph at V-Grid.

Thunderstorm Wind in TOOELE, UTAH
From 21-APR-11 12:15:00 to 21-APR-11 12:15:00 (MST-7)
Location: PEHRSON STATION
Magnitude: 72.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

The Vernon Hill sensor recorded a maximum wind gust of 83 mph.

Thunderstorm Wind in UTAH, UTAH
From 21-APR-11 12:24:00 to 21-APR-11 12:24:00 (MST-7)
Location: CEDAR VLY
Magnitude: 53.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

The sensor in Lehi recorded a wind gust of 61 mph.

Thunderstorm Wind in BOX ELDER, UTAH
From 21-APR-11 12:10:00 to 21-APR-11 12:10:00 (MST-7)
Location: TREMONTON
Magnitude: 52.00 EG
Property damage: 3.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Multiple trees were knocked down in Tremonton, and there were also reports of a few windows being blown out in vehicles.

Thunderstorm Wind in WEBER, UTAH
From 21-APR-11 12:20:00 to 21-APR-11 12:45:00 (MST-7)
Location: PLEASANT VIEW
Magnitude: 67.00 MG
Property damage: 60.00K
Crop damage: 0.00K
Reported by: Mesonet

The Ogden Peak sensor recorded a wind gust of 77 mph. Many trees were knocked down near Ogden and Huntsville, with at least two dozen large trees knocked down in the Huntsville area. Several of these trees landed on buildings, with at least one causing moderate damage to a house. Many power lines were also knocked down across the county.

Thunderstorm Wind in SALT LAKE, UTAH
From 21-APR-11 12:15:00 to 21-APR-11 13:00:00 (MST-7)
Location: BACCHUS
Magnitude: 58.00 MG
Property damage: 40.00K
Crop damage: 0.00K
Reported by: ASOS

The Salt Lake City International Airport ASOS recorded a maximum wind gust of 67 mph. Wind gusts of 62 mph were also reported at the Baccus sensor and the Parley's Canyon at Quarry sensor. A light pole that was knocked over at the Salt Lake City International Airport, landed on two cars. Large trees were knocked over in Rose Park, and a 18-24 inch diameter tree snapped and landed on a house in the Avenues, causing minor roof damage. In addition, a semitruck was blown over near the I-80/I-215 interchange near Salt Lake City International Airport.

Thunderstorm Wind in TOOELE, UTAH
From 21-APR-11 10:00:00 to 21-APR-11 10:15:00 (MST-7)
Location: WENDOVER AF AUX ARPT
Magnitude: 62.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Multiple sites near Wendover recorded strong wind gusts with this thunderstorm, with peak wind gusts of 71 mph at the Wendover Point of Entry, 65 mph at the I-80 at Milepost 1 sensor, and 59 mph at Wendover Peak.

Thunderstorm Wind in TOOELE, UTAH
From 21-APR-11 11:33:00 to 21-APR-11 11:50:00 (MST-7)
Location: (DPG)MICHAEL AAF DUG
Magnitude: 68.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Multiple sensors recorded severe wind gusts as a thunderstorm moved through the Dugway Proving Ground mesonet, with the strongest gusts being 78 mph at Camel Back Mountain, 68 mph at English Village, and 62 mph at White Sage, Simpson Springs, and Fish Springs.

Thunderstorm Wind in TOOELE, UTAH
From 21-APR-11 12:15:00 to 21-APR-11 12:15:00 (MST-7)
Location: (DPG)MICHAEL AAF DUG
Magnitude: 54.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

The Ditto sensor in the Dugway Proving Ground mesonet recorded a maximum wind gust of 62 mph.

Thunderstorm Wind in TOOELE, UTAH
From 21-APR-11 12:05:00 to 21-APR-11 12:05:00 (MST-7)
Location: LAKE PT
Magnitude: 50.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

The Lake Point sensor recorded a wind gust of 58 mph.