They analyze how climate change affects hurricanes 0:54
(CNN) -
The probability that the Atlantic hurricane season will be above average increased from 60% to 65%, according to an update of the forecast by the National Office of Oceanic and Atmospheric Administration of the United States (NOAA, for its acronym in English) published this Wednesday.
On the other hand, he left only a 10% probability that the season is below average and a 25% probability of a normal season.
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In NOAA's August update, it increased the number of named storms that are forecast to 15-21, a range slightly above what was announced in May, when 13-20 such events were forecast.
This updated forecast includes the five named systems that have already formed in the Atlantic.
How are hurricanes named?
2:12
An above-average number of hurricanes is still expected.
There is a forecast of 7 to 10 hurricanes, between 3 and 5 of them of great category.
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An average season in the Atlantic basin has 14 named tropical systems, seven hurricanes, and three major hurricanes.
NOAA