Strong winds developed across Iowa through the evening of the 10th of April and on through the morning of April 11th as a low pressure system off the Rockies further developed and traversed initially eastward across Kansas and then northward roughly along the Kansas-Missouri and Nebraska-Iowa borders. With broad high pressure situated over the Hudson Bay area and south through much of Canada, the surface pressure gradient tightened across northern Iowa to the point where numerous wind gusts in the upper 50s to low 60s mph were reported along with a number of sustained winds of 40 to 45 mph. Impacts reported primarily revolved around minor structure damage and multiple semis overturned along Highways and Interstates.

High Wind in POCAHONTAS, IOWA
From 11-APR-19 06:00:00 to 11-APR-19 12:00:00 (CST-6)
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

High Wind in CALHOUN, IOWA
From 11-APR-19 06:00:00 to 11-APR-19 12:00:00 (CST-6)
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

High Wind in KOSSUTH, IOWA
From 11-APR-19 06:00:00 to 11-APR-19 12:00:00 (CST-6)
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

High Wind in HUMBOLDT, IOWA
From 11-APR-19 06:00:00 to 11-APR-19 12:00:00 (CST-6)
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

High Wind in HAMILTON, IOWA
From 11-APR-19 06:00:00 to 11-APR-19 12:00:00 (CST-6)
Magnitude: 50.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Sustained winds also exceeded 40 to 45 mph at times.

High Wind in WRIGHT, IOWA
From 11-APR-19 06:00:00 to 11-APR-19 12:00:00 (CST-6)
Magnitude: 52.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Sustained winds also exceed 40 mph at times.

High Wind in HANCOCK, IOWA
From 11-APR-19 06:00:00 to 11-APR-19 12:00:00 (CST-6)
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

High Wind in HARDIN, IOWA
From 11-APR-19 06:00:00 to 11-APR-19 12:00:00 (CST-6)
Magnitude: 39.00 MS
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Iowa Falls AWOS measured 45 mph sustained winds.

High Wind in FRANKLIN, IOWA
From 11-APR-19 06:00:00 to 11-APR-19 12:00:00 (CST-6)
Magnitude: 50.00 EG
Property damage: 25.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Law enforcement reported a semi truck blown over on I-35 northbound. Both northbound lanes were blocked at the time.

High Wind in CERRO GORDO, IOWA
From 11-APR-19 06:00:00 to 11-APR-19 12:00:00 (CST-6)
Magnitude: 55.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Mason City ASOS measured 63 mph gust.

High Wind in MARSHALL, IOWA
From 11-APR-19 06:00:00 to 11-APR-19 12:00:00 (CST-6)
Magnitude: 51.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Marshalltown AWOS measured 59 mph gust.

High Wind in BLACK HAWK, IOWA
From 11-APR-19 06:00:00 to 11-APR-19 12:00:00 (CST-6)
Magnitude: 51.00 MG
Property damage: 50.00K
Crop damage: 0.00K
Reported by: ASOS

ASOS measured 59 mph gust. Law enforcement also reported semis overturned on Iowa Highway 21 near Eagle Road, blocking all lanes, and on southbound I-380 at mile marker 63, blocking both southbound lanes.

High Wind in BUTLER, IOWA
From 11-APR-19 06:00:00 to 11-APR-19 12:00:00 (CST-6)
Magnitude: 51.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

High Wind in TAMA, IOWA
From 11-APR-19 06:00:00 to 11-APR-19 12:00:00 (CST-6)
Magnitude: 51.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

High Wind in EMMET, IOWA
From 11-APR-19 06:00:00 to 11-APR-19 12:00:00 (CST-6)
Magnitude: 51.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

High Wind in WINNEBAGO, IOWA
From 11-APR-19 06:00:00 to 11-APR-19 12:00:00 (CST-6)
Magnitude: 50.00 EG
Property damage: 30.00K
Crop damage: 0.00K
Reported by: Broadcast Media

KAAL-TV viewer shared picture of Casey's Gas Station overhang shelter blown over. Forest City AWOS was not providing reports at the time. Powerlines were also reported blown down across US 69 near Leland.

High Wind in WORTH, IOWA
From 11-APR-19 06:00:00 to 11-APR-19 12:00:00 (CST-6)
Magnitude: 50.00 EG
Property damage: 25.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Law enforcement reported a semi truck blown over along I-35 northbound at mile marker 204. On social media, there was a picture of a large tree down in Northwood as well.

High Wind in PALO ALTO, IOWA
From 11-APR-19 06:00:00 to 11-APR-19 12:00:00 (CST-6)
Magnitude: 51.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

High Wind in SAC, IOWA
From 11-APR-19 06:00:00 to 11-APR-19 12:00:00 (CST-6)
Magnitude: 51.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

High Wind in WEBSTER, IOWA
From 11-APR-19 06:00:00 to 11-APR-19 12:00:00 (CST-6)
Magnitude: 55.00 MG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: AWOS

A downed tree was also reported in the Dayton area of Webster County.

High Wind in BREMER, IOWA
From 11-APR-19 06:00:00 to 11-APR-19 12:00:00 (CST-6)
Magnitude: 51.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

High Wind in GRUNDY, IOWA
From 11-APR-19 06:00:00 to 11-APR-19 12:00:00 (CST-6)
Magnitude: 51.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS