99 187 | 'Irma back to Category 5', September 8, 2017 (September 9, 2017 EST / Irma Time)

Miami = 99 (It is September 9, 2017 where Irma is now)

Notice the 187, like 'Saffir Simpson', which provides the classifications for the categories of storms, based on wind speeds.

http://www.cnn.com/2017/09/08/us/hurricane-irma-caribbean-florida/index.html