1998: A very intense low pressure system crossed Iowa producing an all-time state record low pressure of 28.54 inches of Mercury (966 millibars) at Estherville and Spencer. Heavy snow fell across far northwestern Iowa with accumulations as high as 8.0 inches at Sioux Center and very strong winds affected the entire state with every station reporting wind gusts of at least 50 mph, ranging up to 70 mph at Oelwein.
1968: A winter storm brought snowfall across most of Iowa (excepting northeastern areas) from late on November 9th into the early morning hours on the 11th, with most of the snow falling on the 10th. Generally 6 inches or more fell across southwestern, south central, and central portions of the state with the highest reported totals including 10.0 inches at Ankeny, Bedford, Greenfield, Lamoni, Osceola, and Winterset, 11.0 inches at Perry, 12.0 inches at Indianola, 12.1 inches at Des Moines, and 14.0 inches at Ottumwa. At Des Moines the 11.8 inches that fell just on the 10th not only makes this easily their snowiest November day on record but is also higher than any December day with the sole exception of December 26, 1888 when 17.0 inches of snow fell.
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This post was written by Schnack on November 10, 2012