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The 1990 Plainfield tornado was a devastating tornado that occurred on the afternoon of Tuesday, August 28, 1990. The violent tornado killed 29 people and injured 353. [1] It is the only F5/EF5 rated tornado ever officially recorded in August in the United States (the 1883 Rochester, Minnesota cyclone is unofficially considered an F5), and the only F5 tornado to strike the Chicago area.
1990 saw some unusual and powerful tornadoes and tornado outbreaks. On March 13 not one, but two F5 tornadoes struck Kansas, both coming from the same supercell.This was the only day since the 1974 Super Outbreak to have more than one F5 on the same day until the 2011 Super Outbreak, when four EF5 tornadoes touched down on April 27.
1990 Plainfield tornado: August 28, 1990: Northeastern Illinois: 13: 29 fatalities: Produced some of the most intense vegetation scouring ever documented. Strongest August tornado, though only rated F5 based on corn damage. F4 damage occurred to buildings in Plainfield, Illinois, killing 29 people.
The F4 tornado was the largest tornado on record at the time with a peak width of 2.5 miles (4.0 km) as it struck Hallam, Nebraska. [214] This is the first time a High Risk did not appear until the 01Z outlook within an outlook cycle, which has occurred one additional time since (on April 30, 2010). May 24: 2004: Nebraska, Iowa [215] 54
March 1990 Central United States tornado outbreak – Homes were obliterated and swept away, but the F5 rating was assigned due to very intense cycloidal ground scouring. The tornado is considered by some sources to be one of the strongest tornadoes ever surveyed at the time, though little detailed information about the damage is available. [81 ...
The weather service issued a tornado warning until 4:30 p.m. local time for the following parishes: Webster. Claiborne. Bienville. The weather service issued a tornado warning until 5:45 p.m ...
The NWS Bay Area said the warning was over for San Francisco at 6:07 a.m. And let the tornado warning expire at 6:15 a.m. The warning led to a flurry of social media posts from residents who were ...
In late 2023, American meteorologist and tornado expert Thomas P. Grazulis created the Outbreak Intensity Score (OIS) as a way to rank tornado outbreaks. [1] [2] For the score, only significant tornadoes are counted: F2/EF2 tornadoes receive 2 points each, F3/EF3 tornadoes receive 5 points each, F4/EF4 tornadoes receive 10 points each, and F5/EF5 tornadoes receive 15 points each. [1]