https://phys.org/news/2018-08-nasa-heavy-rainmaker-hurricane-lane.html

Hurricane Lane's cloud top temperatures were colder than that, meaning that the storm has a potential to drop even heavier rainfall. Rainfall is the biggest threat from Lane.

On Aug. 23 at 7:35 p.m. EDT (2335 UTC) the Moderate Resolution Imaging Spectroradiometer or MODIS instrument aboard NASA's Aqua satellite found the coldest temperatures of the strongest thunderstorms in Hurricane Lane were as cold as or colder than minus 80 degrees Fahrenheit (minus 62.2 Celsius) north of the center. They were embedded in a large area of storms that circled the eye where cloud top temperatures were as cold as or colder than minus 70 degrees Fahrenheit (minus 56.6 degrees Celsius).