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What were the memorable U.S. weather events of 2020?
The year 2020 will be noted for some memorable and record-breaking weather.
This year saw the most active and seventh-costliest Atlantic hurricane season on record. There were 13 hurricanes, six major hurricanes and 12 storm systems that made landfall in the U.S., causing 409 deaths and more than $40 billion in damages. Hurricane Laura was the strongest land-falling U.S. hurricane of the season; it hit the Louisiana coast with 150 mph winds and higher than 15 feet of storm surge. Continue reading
Category: Meteorology, Severe Weather
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How was the 2020 hurricane season?
The 2020 Atlantic hurricane season ends today and will go down as the most active hurricane season on record.
A total of 30 named storms, 13 hurricanes, and six major hurricanes have formed throughout the season have formed throughout the seasons. Twelve of the named storms made landfall in the contiguous United States, breaking the record of nine set in 1916. Continue reading
What causes a mid-latitude cyclone to develop?
Our recent weekend storm on Nov. 14-15 was the first strong storm of the autumn/winter season.
As you found yourself caught in the strong winds, you may well have wondered how do storms like this one come to be?
That has been the central motivating question in meteorological science for most of the past 100 years. During that time, meteorologists have learned a great deal about how such storms are formed. Continue reading
Category: Meteorology, Seasons, Severe Weather
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How is Wisconsin winter weather affected by La Niña?
Both La Niña and El Niño refer to big changes in the sea-surface temperature across much of the eastern tropical Pacific Ocean.
The water temperatures off the west coast of South America are typically 60 to 70 degrees. During a La Niña, these waters get as much as 7 degrees colder. These La Niña conditions recur every few years and last nine to 12 months, though some events have lingered for as many as two years. This cooling results from a strengthening of the winds over the tropical Pacific and its interaction with the underlying ocean waters. Continue reading
How unusual is the current warm spell?
After a rather persistently cold October in which the monthly averaged temperature was 3.5 degrees below normal, the first week of November has been remarkably pleasant with high temperatures at or above 68 every day since Election Day.
Naturally, such warm weather in November arouses curiosity regarding the frequency of November days with high temperatures at or above 70 degrees in Madison. Continue reading
