The 2023 North Atlantic hurricane seasongot off to an unusually early start, with an unnamed subtropical storm off the north-eastern coast of the US in January – well before the hurricane season’s official start date of June 1.
By November 23, the 2023 season had witnessed 20 named storms: six more than the average pre-season forecasts announced*. This makes it the fourth highest total of named storms in a year since 1950, according to the National Oceanic and Atmospheric Administration (NOAA) [1]. Of these, seven intensified into hurricanes, with three hurricanes escalating to major hurricane status: Lee (Category 5), Franklin (Category 4), and Idalia (a Category 4 hurricane and Category 3 upon landfall).
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Despite it being an active season, only eight storms have made landfall so far in 2023, and only tropical storms Harold and Ophelia and Hurricane Idalia made landfall in the US. This has led to most storms being referred to as “fish storms” – storms that pose virtually no risk to land but can be a threat to boats and ships and produce dangerous currents along the coast [2].
Hurricane Franklin was the first major hurricane of the 2023 Atlantic hurricane season. It made landfall as a tropical storm on the southern coast of the Dominican Republic and triggered heavy rainfall and destructive winds. After passing the Dominican Republic, it further intensified into a Category 4 hurricane on the high seas.
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In late August, Hurricane Idalia made landfall in Florida’s Big Bend region (where the narrow Florida Panhandle transitions to the wider Florida Peninsula) as a Category 3 storm, becoming the first major hurricane to make landfall in that area since record-keeping began in 1842.
At peak season in early September, the massive and expansive Category 1 Hurricane Lee threatened to impact the eastern coast of the US and Canada. A long-lived storm, Lee underwent a remarkable transformation, intensifying from a Category 1 to a Category 5 storm in just 24 hours. However, it quickly weakened and transitioned to an extratropical storm before making landfalls in Nova Scotia, Canada, as a Category 1 storm, then moving out into the far northern Atlantic. Lee’s extratropical phase brought rain and gale-force winds to parts of the UK and Ireland. Meanwhile, swells generated by the storm triggered dangerous surf and rip currents along the entire Atlantic coast of the US. Aon estimates economic losses due to Hurricane Lee to be around US$50mn [3].
Source: https://t-tees.com
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