Category Archives: Seasons

What is the heat index?

The heat index indicates how hot it feels.

It is expressed as a function of air temperature and the relative humidity. The heat index temperature is for standing in the shade and light winds; when exposed to direct sunlight, the heat index value can be increased by up to 15 degrees. Continue reading

Category: Meteorology, Seasons, Severe Weather

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Does the sunset last longer around the summer solstice?

Yes. The summer solstice — in Latin, “sol,” or “sun,” and “stice,” or “come to a stop” — is the day of the year with the most daylight.

The first day of the astronomical Northern Hemisphere summer is the day of the year when the sun is farthest north. In 2020, this occurred at 4:44 p.m. Saturday. Continue reading

Category: Seasons

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Was that a tropical storm last week?

The western Great Lakes region was visited by a rare tropical storm Tuesday when Cristobal made its way into southern Wisconsin.

Rainfall from eastern Iowa to central Wisconsin was intense, with Madison, La Crosse, Wausau and Rhinelander all recording just under 2 inches of rainfall overnight Tuesday into Wednesday. Even more impressive rainfalls were recorded in eastern Iowa, as Dubuque got 2.16 inches, Cedar Rapids got 2.35 inches and Iowa City was hit with 3.47 inches. Continue reading

Category: Meteorology, Seasons, Severe Weather

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When is hurricane season?

The peak of hurricane activity in the tropical waters south and southeast of the United States is typically in early to mid-September.

But hurricanes can occur any month of the year; the calendar isn’t the important thing — the ocean temperatures and the lack of wind shear are. Continue reading

Category: Seasons, Severe Weather, Tropical

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Why is Memorial Day weather so fickle?

Memorial Day weekend weather can be absolutely glorious in Wisconsin or it can be rainy and cold.

Perhaps no other major holiday suffers from such a Jekyll-and-Hyde split in our expectations, and there are really good scientific reasons that underlie this duality. Continue reading

Category: Climate, Meteorology, Seasons

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