https://phys.org/news/2018-08-nasa-slamming-tropical-cyclone-lane.html

At 8:15 a.m. EDT (1215 UTC) the Moderate Resolution Imaging Spectroradiometer or MODIS instrument aboard Aqua measured cloud top temperatures in Lane when it was a depression. Coldest cloud tops were near minus 70 degrees Fahrenheit (minus 56.6 degrees Celsius), east of the center. Those storms were being pushed there by strong westerly winds. Storms with cloud top temperatures that cold have the capability to produce heavy rainfall.

Fortunately, that heavy rain is falling over open ocean waters. The infrared imagery showed that those strong storms were not reaching the Hawaiian Islands.