I-94 derecho

The I-94 derecho was a progressive derecho that moved through the Upper Mississippi Valley on July 19, 1983. It is so called because the derecho moved through Minnesota and Wisconsin with I-94 as its axis. The derecho formed as an area of disturbed weather in eastern Montana moved eastward. It moved into northwestern North Dakota at around 7 A.M. CDT forming a small bow echo. Williston and Minot reported winds up to 70 mph (110 km/h).

I-94 derecho

The I-94 derecho was a progressive derecho that moved through the Upper Mississippi Valley on July 19, 1983. It is so called because the derecho moved through Minnesota and Wisconsin with I-94 as its axis. The derecho formed as an area of disturbed weather in eastern Montana moved eastward. It moved into northwestern North Dakota at around 7 A.M. CDT forming a small bow echo. Williston and Minot reported winds up to 70 mph (110 km/h).