Experts predict active Atlantic hurricane season
Published 4:32 pm Friday, May 31, 2024
- NOAA's GOES-16 satellite captured Hurricane Idalia (left) approaching the western coast of Florida while Hurricane Franklin churned in the Atlantic Ocean at 5:01 p.m. EDT on August 29, 2023.
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If the experts at the National Oceanic and Atmospheric Administration (NOAA) are correct, the 2024 Atlantic hurricane season will be extremely active.
The hurricane season officially begins June 1 and ends Nov. 30.
NOAA National Weather Service forecasters at the Climate Prediction Center predict above-normal hurricane activity in the Atlantic basin this year. NOAA’s outlook predicts an 85% chance of an above-normal season, a 10% chance of a near-normal season and a 5% chance of a below-normal season.
NOAA is forecasting a range of 17 to 25 total named storms (winds of 39 mph or higher). Of those, 8 to 13 are forecast to become hurricanes (winds of 74 mph or higher), including 4 to 7 major hurricanes (category 3, 4 or 5; with winds of 111 mph or higher). Forecasters have a 70% confidence in these ranges.
It needs to be noted that NOAA’s outlook is for overall seasonal activity and is not a landfall forecast.
The upcoming Atlantic hurricane season is expected to have above-normal activity due to a confluence of factors, including near-record warm ocean temperatures in the Atlantic Ocean, development of La Nina conditions in the Pacific, reduced Atlantic trade winds and less wind shear, all of which tend to favor tropical storm formation.
The combination of those factors present the possibility of an active hurricane season. The record year was in 2020 where a total of 31 tropical or subtropical cyclones formed, with all but one cyclone becoming a named storm. Of the 30 named storms, 14 developed into hurricanes, and a record-tying seven further intensified into major hurricanes.
“With another active hurricane season approaching, NOAA’s commitment to keeping every American informed with life-saving information is unwavering,” said NOAA Administrator Rick Spinrad, Ph.D. “AI-enabled language translations and a new depiction of inland wind threats in the forecast cone are just two examples of the proactive steps our agency is taking to meet our mission of saving lives and protecting property.”
“Severe weather and emergencies can happen at any moment, which is why individuals and communities need to be prepared today,” said FEMA Deputy Administrator Erik A. Hooks. “Already, we are seeing storms move across the country that can bring additional hazards like tornadoes, flooding and hail. Taking a proactive approach to our increasingly challenging climate landscape today can make a difference in how people can recover tomorrow.”
As one of the strongest El Ninos ever observed nears its end, NOAA scientists predict a quick transition to La Nina conditions, which are conducive to Atlantic hurricane activity because La Nina tends to lessen wind shear in the tropics. At the same time, abundant oceanic heat content in the tropical Atlantic Ocean and Caribbean Sea creates more energy to fuel storm development.
This hurricane season also features the potential for an above-normal west African monsoon, which can produce African easterly waves that seed some of the strongest and longer-lived Atlantic storms. Finally, light trade winds allow hurricanes to grow in strength without the disruption of strong wind shear, and also minimize ocean cooling.