South FL Worst-Case: 70 More Days/Year Of At Least 90F By 2050, With Increased Humidity

Under a worse-case-scenario (ed. - sic), South Florida could see up to 70 more days per year of temperatures warmer than 90 degrees by the mid-21st Century.

West Palm Beach, on average, already has about 65 days per year above 90 degrees, according to David Easterling, National Climate Assessment Technical Support Unit Director at NOAA’s National Centers for Environmental Information.

Easterling, who helped write a section of the report on temperature changes in the U.S., said the warmer days will also come with higher humidity. “Combining the heat with the increase in humidity does raise a lot of concern by 2075,” Easterling said. “If apparent, or feels-like, temperatures are well into the 100s, there can be a lot of health affects.”

Rising temperatures can set off a chain reaction that overloads electrical capacity and cuts off South Florida’s air conditioning lifeline. Look no further than September for an example of what happens when temperatures rise and electricity fails. Hurricane Irma left millions of Floridians in the dark. Temperatures in South Florida fluctuated from the high 80s into the low 90s following the storm’s Sept. 10 landfall. At the Rehabilitation Center at Hollywood Hills, which lost power to its central air conditioning system, 14 people died after living several days in temperatures not mitigated by central air conditioning.

EDIT

http://www.mypalmbeachpost.com/weather/hurricanes/dire-warning-suffer-more-degree-days-climate-report-says/VGj6ogPKxRiuSRGZ1WkSAK/