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.
thumb|right|350px|Map of the I-94 Derecho (Courtesy of NOAA)
The derecho formed as an area of disturbed weather in eastern Montana moved eastward. It moved into northwestern North Dakota at around 7a.m. CDT forming a small bow echo. Williston and Minot reported winds up to .
Further development formed two and three bow echo segments as the storm moved into Minnesota. Winds of were recorded at the Alexandria airport. The winds damaged and destroyed hangars. It continued southeast and arrived at Minneapolis, Minnesota at around 4p.m. CDT and left 250,000 people without power.