NASA infrared data reveals Tropical Storm Emilia is strengthening
https://phys.org/news/2018-06-nasa-infrared-reveals-tropical-storm.html
By Friday, June 29, 2018 the National Hurricane Center noted that those cloud tops had cooled, indicating the uplift in the storm was stronger, and the cloud tops were higher. That means the storm was intensifying. NHC said "Shortwave infrared imagery and an earlier [4:55 a.m. EDT] 0855 UTC polar orbiter (satellite) pass show deep convective bursts, with associated minus 78 degree Celsius [minus 108.4 degrees Fahrenheit] cloud tops, developing near the surface center."
Emilia is far enough away from land so that there are no coastal watches or warnings in effect.