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NOAA predicts ‘Above-Normal Level’ activity for 2023 Atlantic hurricane season

August 10, 2023

Current ocean and atmospheric conditions like record-warm Atlantic sea surface temperatures have the potential to counteract El Niño conditions. The original forecast issued in May predicted a 30% chance of above-normal conditions. Now, it stands at 60% as hurricane season moves through.

The outlook for 2023 calls for 14-21 storms with winds of 39 mph or greater. 6-11 storms are predicted to be categorized as hurricanes, of which 2-5 could become major hurricanes with 111 mph or greater. This update includes storms that have already formed this season. NOAA provides these ranges with 70% confidence.

“We're urging you to prepare now for the upcoming quarter of the hurricane season, as a single storm can have catastrophic impacts,” NOAA lead hurricane season forecaster Matthew Rosencrans said. “Preparing now makes for a safer and more resilient community should a storm strike your area.”

The six-month hurricane season extends from June 1 through Nov. 30.

There is a 95% chance that El Niño will continue through the Northern Hemisphere winter, according to the Climate Prediction Center. El Niño typically results in atmospheric conditions that decrease tropical activity during the Atlantic hurricane season. Those conditions have been slow to develop this year, and climate scientists are predicting that the associated impacts that limit storm activity may not be in place for the rest of the season.

Below-normal wind shear conditions, slightly below-normal Atlantic trade winds and near-or-above-normal West African Monsoon features are also shaping the updated seasonal forecast.

Sources include nearest National Weather Service office, National Hurricane Center, and the Florida Public Radio Emergency Network (@FloridaStorms).
Sources include nearby emergency management agencies, FEMA, and your local NPR affiliate. 
Sources include the Florida Department of Transportation, Florida Highway Patrol and other nearby traffic information.

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