Category Archives: Tropical

What is happening with ocean temperatures?

Scientists record global ocean temperatures using satellite observations. Since mid-March, the global average sea surface temperature has been more than 70 degrees, a record high temperature. This indicates rapid warming, which is associated with global warming and ocean circulations.

El Niño and La Niña are climate patterns in the Pacific Ocean. Normally, the trade winds blow west along the equator, moving warm water from South America toward Asia. To replace that warm water, cold water rises from the ocean depths — a process called upwelling. That means cold water rises to the surface near South America. Continue reading

Category: Climate, Phenomena, Tropical

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How is the 2022 hurricane season going?

The hurricane season is a distinct time of year when tropical cyclones — tropical depressions, tropical storms and hurricanes — usually develop.

Here in the U.S., we usually refer to the Atlantic hurricane season, as it’s those storms that most commonly affect the U.S., which extends from June 1 to Nov. 30. Continue reading

Category: Seasons, Tropical

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Another example of unprecedented weather extremes

Another entry in the category of unprecedented weather extremes comes from the tropical Atlantic basin where, last week, Hurricane Fiona wrought devastation to the Commonwealth of Puerto Rico, still reeling from its assault by Hurricane Maria eerily precisely five years earlier.

Fiona dropped upwards of 30 inches of rain on the south shores of Puerto Rico before heading north into the Atlantic, where it systematically strengthened into a Category 4 hurricane with sustained winds of more than 130 mph. Continue reading

Category: Meteorology, Phenomena, Severe Weather, Tropical

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How is this year’s Atlantic hurricane season measuring up?

The Atlantic hurricane season is now more than two months old and has so far been fairly quiet with only three storms — all of them in the weakest category of tropical depression. This may well have been the case in the summer and fall of 1492 as well.

It is interesting to note that among the seemingly endless list of superstitions and fantastical falsehoods that surrounded voyages of exploration in the age of discovery — ranging from sea serpents of all kinds to boiling waters near the equator — there was no mention of hurricanes. This is obviously because no European had yet witnessed (and could not imagine) the frothing seas, with towering 100 foot waves, that these ferocious storms can create. Continue reading

Category: Seasons, Tropical

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What does the hurricane season look like?

The official Atlantic basin hurricane season runs from June 1 through Nov. 30, with an average of 10 to 15 storms each year.

The peak of activity in the Atlantic basic runs from mid-August to mid-October. During that subset of the entire season, more than 70% of all storms in the last 100 years have occurred. Continue reading

Category: Climate, Severe Weather, Tropical

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