Hotter Seas and Rising Stakes: Forecast Predicts Above-Average Hurricane Season in 2023

“Earlier this year, forecasters predicted a slightly below-average hurricane season for 2023 but acknowledged the uncertainty caused by conflicting meteorological factors. Now, after three months, the picture is becoming clearer, leading Colorado State University’s tropical weather and climate research team to revise their hurricane season outlook. The updated forecast projects an above-average season with 18 named storms, including nine hurricanes and four major hurricanes. This represents an increase of five named storms and two major hurricanes from the initial predictions.

The primary reason for the upward revision is the “”extreme anomalous warmth”” in the Atlantic Ocean. The region is experiencing higher-than-normal temperatures, which provide favorable conditions for tropical storms to develop. Philip Klotzbach, a meteorologist from the university, explains that the Atlantic is currently as warm in early July as it typically would be in early August, indicating an early start to the season.

Although sea surface temperatures are expected to continue warming over the next few months, the rate of increase remains uncertain. Other factors contributing to the revised forecast include the unexpected absence of wind shear associated with El Niño and the occurrence of two tropical storms in June. These unusual factors have influenced the forecast, as early storm activity in the deep tropics often indicates a busier hurricane season.

Meteorologists emphasize the importance of preparedness, regardless of the specific number of storms predicted. While the National Oceanic and Atmospheric Administration initially forecasted a near-normal hurricane season, the university’s updated prediction aligns more closely with the higher end of the administration’s estimate. This revised forecast coincides with record high temperatures globally, and experts warn that climate change contributes to stronger and wetter storms due to increased atmospheric moisture.

The unique combination of exceptionally warm sea surface temperatures and El Niño makes the 2023 hurricane season unprecedented. Klotzbach notes that such conditions have never been observed before. As we enter uncharted territory, it is crucial to remain vigilant and be prepared for the potential impact of hurricanes.