WeatherTalk: Humid air is rare here until summer

One factor in making our air humid is the establishment of crops.

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FARGO — Humid weather is relatively rare in our region in spring but is increasingly common through the summer.

When large storm systems pull air from the south across the Great Plains, there is a huge transport of air northward from land closer to the Gulf of Mexico. This is about the only way we can get humid air this far north in May.

Air from the Pacific Ocean loses much of its humidity crossing the Rockies. Air from Canada is dry this time of year.

Later this summer, once air with higher humidity has had time to establish itself in the central parts of the Midwest, it will become far easier for humid air to be blown up here.

Another factor in making our air humid is the establishment of crops. Once the fields in our area are covered with soybeans, corn, beets, and other crops, the process of transpiration in the plants will add significant humidity to the air.

Related Topics: WEATHER
John Wheeler is Chief Meteorologist for WDAY, a position he has had since May of 1985. Wheeler grew up in the South, in Louisiana and Alabama, and cites his family's move to the Midwest as important to developing his fascination with weather and climate. Wheeler lived in Wisconsin and Iowa as a teenager. He attended Iowa State University and achieved a B.S. degree in Meteorology in 1984. Wheeler worked about a year at WOI-TV in central Iowa before moving to Fargo and WDAY..
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