Category Archives: Meteorology

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

Category: Climate, Meteorology, Seasons

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Will spring temperatures affect the COVID-19 outbreak?

The COVID-19 outbreak continues to expand across the U.S. and globally. What happens when spring and warmer weather arrives?

Some viral respiratory diseases, such as influenza, are seasonal, and cases decrease in the spring and summer. However, we do not know what to expect from the new coronavirus that causes COVID-19. Continue reading

Category: Meteorology, Phenomena, Weather Dangers

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Is water everywhere?

Evidence of the presence of water in our atmosphere is ubiquitous.

Water occurs in the Earth’s atmosphere in all three of its phases — solid (snow and ice), liquid (rain and dew) and gas (invisible water vapor). Continue reading

Category: Climate, Meteorology

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How did 2019 weather align with climate trends?

Government scientists concluded that the globally averaged temperature for 2019 was 1.71 degrees above the 20th-century average. This is the 43rd consecutive year that the global temperature was above the 20th-century average.

This was the second-highest since record keeping began in 1880 and was just 0.07 degrees less than the record value set in 2016. Nine of the 10 warmest years have occurred since 2005, and the five warmest years have occurred since 2015. Continue reading

Category: Climate, Meteorology

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