From NWS
2007: A powerful winter storm system affected Iowa on February 23-26, producing severe ice storm effects across portions of central, northern and eastern Iowa on the 24th, followed by heavy snowfall across about the northern third of the state. A round of freezing rain, snow and sleet moved across northeastern Iowa on the evening of February 23rd, then more widespread freezing rain developed on the 24th. Ice accumulations of 1 to 2 inches were common with the heaviest accumulations generally in Marshall, Poweshiek, Tama, and Black Hawk counties. Making matters worse, strong winds gusting to near 50 mph at times combined with the heavy ice to bring down thousands of branches and power lines and poles, and even some whole trees. Several hundred thousand Iowans were without power at the height of the storm, and in some rural areas it took more than a week to restore. Utilities companies estimated that approximately 150 million dollars worth of equipment was damaged or destroyed, including thousands of utility poles and many hundreds of miles of lines. As the storm progressed, precipitation changed over to snow, falling heavily across northern Iowa where amounts of 10 inches or more were common. The heaviest reported storm total snowfall accumulations included 15.4 inches at Waukon, 16.3 inches at Lansing, 16.5 inches at Decorah, and 19.6 inches at Cresco. The strong winds also blew the snow into drifts and reduced visibility to near zero at times. The combination of snow and ice effects across Iowa resulted in 60 counties being declared disaster areas as travel was brought to a standstill across much of the state. This was easily the worst widespread ice storm in Iowa since 1990, and may have been the worst since the 1960s.
1935: A major snow storm struck Iowa on February 24-25 with strong winds producing blizzard conditions and reducing visibility to near zero at times. Airplanes were grounded, transportation came to a halt, and roads were blocked with snow drifts as much as 15 feet deep. The senior meteorologist at the Iowa Weather and Crop Bureau estimated that 2,024,727,912 tons of snow had to be dug out across the state. There is no record of how he arrived at that estimate.
1930: Very warm weather led to high temperatures of 80 F at Clarinda and Mount Ayr and 78 F at Des Moines which is the all-time February record at that location. Incredibly just 9 days earlier on the 15th bitter cold had brought the temperature all the way down to -34 F at Webster City, thus the temperature across Iowa rose 114 F in just 9 days. To put this into perspective, the largest temperature range ever recorded across the state of Iowa during the entire month of February is 115 degrees.
Posted under Weather History
This post was written by Schnack on February 24, 2013