Intense fall storm generates record low pressure...

Intense fall storm generates record low pressure...

A new record was set on Tuesday for the lowest barometric pressure in a extra-tropical (non-tropical) storm in the mainland U.S.

The massive storm system that barreled across the central U.S. had a minimum central pressure of 28.24" of mercury (equivalent to the minimum pressure of a Category 3 hurricane). This breaks the old record of 28.28" of mercury, set on January 26, 1978, during the Blizzard of 1978.

This is also lower than the "Witch of November" storm that sank the Edmund Fitzgerald in 1975.

Across central Illinois, at Springfield, the barometric pressure fell to 29.03” of mercury.  This is the lowest pressure on record for the month of October.  A record low pressure for the month of October was also set at Peoria. 

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