Derecho Deja Vu

Severe Thunderstorm Watch #419 is issued by The Storm Prediction Center (SPC) at 2:05 pm CDT.

A severe storm packing high winds presented itself in Linn County, Iowa during the late afternoon hours of Tuesday, August 10, 2021, eerily one year to the date after last year's epic derecho event. I chose a spotting location just south of the storm system about three miles north of County Home Road and about a half-mile east of Highway 13 (more specifically Pleasant Valley Road, about a tenth-mile north of Indian Bridge Road--(42° 8'19.68"N,  91°32'25.32"W). The image above, captured at 3:51 pm CDT, looks north at the storm system, whose most intense area was located about 3 miles distant.

Radarscope capture, corresponding to the image at top. Storm track was to the southeast. My spotting location is indicated by the target icon.

4:13 pm. Looking east at swirling clouds. A wayward bird can be seen at lower left.

4:17 pm. Scud clouds looking northeast.

4:17 pm. Incoming heavy rain and high winds approaching from the northwest.

4:27 pm. Looking south. Wind gusts were in the 60-70 mph range at this time--reminiscent of the derecho! Wind was blowing from lower left to upper right in the image. I did not witness significant damage going home, but noticed horseweed in the ditches leaning about 45 degrees, and some corn stalks leaning about 15 degrees. Nikon D7200 DSLR camera.

Radarscope capture corresponding to photograph above it.