Tropical Storm Risk (TSR) has today issued its summary of the 2023 North Atlantic hurricane season and verification of seasonal forecasts.
The report finds that the 2023 North Atlantic hurricane season was active with an ACE index 20% above the 1991-2020 climate norm. Forecasts initially underestimated activity but improved
significantly from early summer.
This North Atlantic hurricane season saw 20 named storms, 7 hurricanes, 3 intense hurricanes and an ACE index of 146. Since reliable records began in 1950 this is the second highest (after 1969) ACE index for a year where the Jul-Sep Oceanic Nino Index was 0.5 or greater (El
The TSR extended range forecast for the 2024 North Atlantic hurricane season will
be issued on the 7th December. Updated TSR outlooks will be issued on the 8th April,
30th May, 8th July and the 6th August
Read the full summary at: https://www.eurotempest.ltd/wp-content/uploads/TSRATL2023Verification.pdf
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