NOAA Upgrades Atlantic Hurricane Season Outlook, Predicts Above Normal Activity
August 14, 2023
The United States National Ocean and Atmospheric Administration (NOAA) has updated its prediction for the 2023 Atlantic hurricane season, raising the likelihood of above-normal activity. NOAA now forecasts a 70% chance of 14 to 21 named storms, 6 to 11 of which could become hurricanes, and 2 to 5 of which could become major hurricanes. Factors such as warm sea surface temperatures and other atmospheric conditions have contributed to this updated outlook. Residents in vulnerable areas are advised to have a hurricane plan and stay informed through official channels.
Florida – The United States National Ocean and Atmospheric Administration (NOAA) on August 11 updated its prediction for storms and hurricanes from “near normal” to “above normal”.
The new prediction now includes a 70 per cent chance of 14 to 21 named storms, of which six to 11 could become hurricanes, and two to five could become major hurricanes.
NOAA said it had heightened the outlook projection due to current ocean and atmospheric conditions, such as record-warm sea surface temperatures.
The updated outlook raises the likelihood of an above-normal Atlantic hurricane season to 60 per cent, increased from the outlook issued in May, which predicted a 30 per cent chance.
The agency also explained that a below-normal wind shear forecast, slightly below-normal Atlantic trade winds and a near- or above-normal West African Monsoon were also key factors in the decision to update the seasonal forecast.
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.
Matthew Rosencrans, lead hurricane season forecaster with NOAA’s Climate Prediction Center is urging people living in the hurricane belt to prepare for the continuing season.
“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,” Rosencrans said.
NOAA stressed that its hurricane outlooks are forecasts of overall season activity, not landfalls and it is urging residents in vulnerable areas to have a well-thought-out hurricane plan and stay informed through official channels as this season progresses.
Though the region is currently experiencing the El Nino conditions, which helps to lessen tropical activity during the Atlantic hurricane season, climate scientists say those limiting conditions have been slow develop and “are forecasting that the associated impacts that tend to limit tropical cyclone activity may not be in place for much of the remaining hurricane season.” (CMC)
