FLORIDA, United States--Forecasters at the US National Oceanic and Atmospheric Administration (NOAA) Climate Prediction Center say the Atlantic could see another above-normal hurricane season this year.
For the upcoming Atlantic hurricane season, which runs June 1 through November 30, forecasters predict a 45 per cent chance of an above-normal season, a 35 per cent chance of a near-normal season and only a 20 per cent chance of a below-normal season.
“As a Florida resident, I am particularly proud of the important work NOAA does in weather forecasting and hurricane prediction,” said US Secretary of Commerce Wilbur Ross. “These forecasts are important for both public safety and business planning and are a crucial function of the federal government.”
Forecasters predict a 70 per cent likelihood of 11 to 17 named storms (winds of 39 miles per hour (mph) or higher), of which five to nine could become hurricanes (winds of 74mph or higher), including two to four major hurricanes (Category 3, 4 or 5; winds of 111mph or higher). An average season produces 12 named storms of which six become hurricanes, including three major hurricanes.
These numbers include Tropical Storm Arlene, a rare pre-season storm that formed over the eastern Atlantic in April.
“The outlook reflects our expectation of a weak or non-existent El Niño, near- or above-average sea-surface temperatures across the tropical Atlantic Ocean and Caribbean Sea, and average or weaker-than-average vertical wind shear in that same region,” said Gerry Bell, Ph.D., lead seasonal hurricane forecaster with NOAA’s Climate Prediction Center.
Strong El Niños and wind shear typically suppress development of Atlantic hurricanes, so the prediction for weak conditions points to more hurricane activity this year. Also, warmer sea-surface temperatures tend to fuel hurricanes as they move across the ocean.
However, the climate models are showing considerable uncertainty, which is reflected in the comparable probabilities for an above-normal and near-normal season.
The 2016 season was the most active since 2012, with 15 named storms, including seven hurricanes and four major hurricanes. ~ Caribbean360 ~
