NOAA revises 2023 Atlantic Hurricane Season to ‘above normal’
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Forecasters believe that current ocean and atmospheric conditions, such as record-warm Atlantic sea surface temperatures, are likely to counterbalance the usually limiting atmospheric conditions associated with the ongoing El Nino event.
“NOAA forecasters have increased the likelihood of an above-normal Atlantic hurricane season to 60% (increased from the outlook issued in May, which predicted a 30% chance). The likelihood of near-normal activity has decreased to 25%, down from the 40% chances outlined in May's outlook,” the NOAA said in a release over the weekend.
This new update, according to the NOAA, gives the Atlantic a 15% chance of seeing a below-normal season.
Forcast runs to Novermber 30, 2023
NOAA’s update to the 2023 outlook which covers the entire six-month hurricane season that ends on November 30, 2023, calls for 14-21 named storms (winds of 39 mph or greater), of which 6-11 could become hurricanes (winds of 74 mph or greater).
Of those, 2-5 could become major hurricanes (winds of 111 mph or greater). NOAA provides these ranges with a 70% confidence. These updated ranges include storms that have already formed this season.
The Atlantic basin experienced an active start to the hurricane season with five storms that have reached at least tropical storm strength, including one hurricane already.
An average hurricane season produces 14 named storms, of which seven become hurricanes, including three major hurricanes.
Persons urged to prepare
“The main climate factors expected to influence the 2023 Atlantic hurricane activity are the ongoing El Nino and the warm phase of the Atlantic Multi-Decadal Oscillation, including record-warm Atlantic sea surface temperatures,” said Matthew Rosencrans, lead hurricane season forecaster with NOAA’s Climate Prediction Center.
“Considering those factors, the updated outlook calls for more activity, so we urge everyone to prepare now for the continuing season,” he added.


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