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Category Archives: Seasons
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
What makes the weather?
The term “weather” refers to the temporary conditions of the atmosphere, the layer of air that surrounds Earth and is referenced to a particular location and moment.
What is a freeze and a hard freeze warning?
A freeze warning is issued when the nighttime low temperatures across the whole county or forecast zone are predicted to be at or below 32 degrees.
A freeze warning is issued when low temperatures are expected to be 29 to 32 degrees, and a hard freeze warning is issued when temperatures are expected to be 28 degrees or less. Continue reading
Category: Meteorology, Seasons, Severe Weather
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Why does the severe weather threat increase as spring and summer approach?
As the threat of winter snows recedes across the country, it is replaced by the threat of severe weather — thunderstorms with hail, damaging winds and tornadoes.
The severe weather season, though broadly spanning March through August across the United States, is actually quite regional. It begins in March in the southern states, moves to the southern Plains during April and May, and then farther north toward the Great Lakes states during the summer. Continue reading
Category: Meteorology, Seasons, Severe Weather
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Did spring come early this year?
Astronomically, spring occurs when the sun’s rays strike the equator at noon at an angle that is directly overhead.
This particular time varies from year to year due to variations in Earth’s orbit about the sun. In the Northern Hemisphere, the vernal, or spring, equinox (“equi” meaning “equal,” and “nox,” “night”) occurs sometime between March 19 and 23, but often on March 20 or 21. Continue reading
