May 30

From NWS
: A severe thunderstorm tracked roughly parallel to and just north of Highway 30 from southern Sac County to Marshall County. The storm was strongest as it moved from near Boone to Ames and through Nevada around midday producing several weak tornadoes and extremely large hail. Winds gusted to as high as 80 mph at Meservey and hail the size of baseballs and larger fell at Ames and numerous other locations, with hail stones ranging in size up to an amazing 5 inches in diameter north of Gilbert. Damage from the hail was severe with every north facing window broken out in several towns and countless thousands of acres of crops battered to pieces. More than 24,000 acres were totally destroyed in southern Webster County alone and in southern Calhoun County a Lohrville woman was injured in her car by shattering glass.

1985: A tornado produced F3 damage as it grazed Elkader while moving east northeast at about 45 mph. The tornado struck the County Care Facility just outside the city killing 2 people and injuring 10 others, then went on to devastate dozens of farms and injure another 25 people in Clayton County before crossing the Mississippi River into Wisconsin.

1965: Unusually cold weather resulted in frost and near freezing temperatures being reported at some locations across about the eastern third of Iowa on the morning of May 30th. Low temperatures included 35 F at Charles City, Fayette, Marshalltown, and Oelwein, 34 F at New Hampton and Osage, 33 F at Cresco, and 31 F at Saratoga.

1934: What would become one of the hottest summers on record in Iowa began to intensify as a heat wave in the last three days of May resulted in nearly every location in the state exceeding 100 F on at least one of those three days. The heat wave peaked on the 30th when the temperature soared to as high as 111 F near Inwood which is the highest temperature ever recorded in Iowa in May. Other high temperatures on the 30th included 110 F at Boone, 109 F at Logan and Spencer, 108 F at Le Mars, and 107 F at Storm Lake. Des Moines and Sioux City also set their respective May records as both reached a high of 105 F. Amazingly this extremely hot weather came only a few days after unseasonably cool temperatures in the 30s had been recorded across much of the state with frost on the 25th and 26th. In fact, at Boone the low temperature on the morning of the 25th was 30 F so the temperature at that location rose by 80 F in just five days. To put this into perspective, the largest temperature range ever recorded across the state of Iowa during the entire month of May is 88 degrees.

1899: At least five significant tornadoes touched down in western and northwestern Iowa killing one person and injuring more than a dozen others. The oldest known photograph of an Iowa tornado was taken on this day near Kingsley in Plymouth County.

1879: A significant tornado outbreak produced several particularly violent, long-lived, killer tornadoes across portions of Kansas and Missouri as well as at least three smaller tornadoes in southern Iowa. The first of these passed just southeast of Clarinda destroying a railroad bridge but largely affecting only rural areas. An observer in Clarinda noted that the storm was “accompanied by the most terrific hailstorm remembered by the older citizens.” A second tornado produced F3 damage in Appanoose County as it passed a few miles south of Cincinnati leveling a farm house and killing a man inside. A third tornado destroyed several farms and buildings on a path across Adair County, resulting in dozens of injuries but no reported fatalities.

 This Day in National/World Weather History …
 30 May 1948 → Acting as a dam, a railroad bed gave way during a flood on the Columbia River. It destroyed the town of Vanport, OR. Fortunately, the 19,000 residents escaped, but with only the clothes they were wearing.
 30 May 1961 → Near Gates, NE, a farm was completely destroyed by a violent tornado, possibly an F5. All buildings and machinery on the farm were swept away, and 30 head of cattle were killed.
 30 May 1998 → A supercell moved across southeastern South Dakota and produced an F4 tornado that passed through the town of Spencer. The tornado killed 6 people and injured 300. Only 6 buildings were left standing in Spencer.


Posted under Weather History

This post was written by Schnack on May 30, 2012

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