Meteorologists analyze a range of factors to predict a storm’s development, but one of the most crucial elements is sea surface temperatures.
According to Climate Scientist Dr. Gilford, "Hurricanes are kind of like the engine in your car. They need some fuel to spin."
For a tropical storm to form, sea surface temperatures must be at least 79 degrees Fahrenheit. However, record-high temperatures can significantly intensify storms.
The warmer the water, the stronger the hurricane.
“Over the last 100 years or so, we’ve seen sea surface temperatures increase by quite a bit—over a degree Celsius, or two degrees Fahrenheit. It’s quite warm out there compared to what it was before we started emitting greenhouse gases," Dr. Gilford said.
In February, global ocean temperatures hit a record high, highlighting the growing impact of climate change. This season has already seen unprecedented activity, with Hurricane Beryl reaching Category 5 strength by July 2nd—the earliest on record for the Atlantic.
Typically, the first hurricane of the season doesn’t occur until August 11th.
Dr. Gilford emphasizes that recent data suggests an increase in the frequency of major storms.
“There’s some indication, especially in our data over the last four years or so, that Category 3, Category 4, and Category 5 hurricanes—those with the biggest impacts—are becoming more common,” he said.
While hurricanes play a critical role in balancing Earth’s energy by transferring heat, record hot water makes this process more challenging.
“If there’s more energy at the tropics because the temperatures are warmer, the storms need to work harder and become more intense to transport this energy northward,” Dr. Gilford explained.
The rise in sea surface temperatures due to climate change has increased the likelihood of hurricanes developing into Category 3 or greater by about 8 percent since 1979.
"As we continue to emit greenhouse gases until we reduce our reliance on fossil fuels and carbon emissions, we are going to track more heat, and sea surface temperatures are going to keep increasing," Dr. Gilford warns.
The growing intensity of hurricanes, fueled by higher sea surface temperatures, underscores the urgent need to address climate change and its impact on our weather patterns.