A satellite captured Tropical Storm Idalia’s convection as it gained strength off Cuba on Aug. 28, 2023. NOAA GOES August 29, 2023 Hurricane Idalia intensifies over extremely warm Gulf waters, on track for Florida landfall as a dangerous major hurricane Haiyan Jiang, Florida International University A hurricane scientist explains the conflict between 2023’s abnormally high ocean heat and the storm-disrupting wind shear accompanying El Niño.