IRMA-17 is a tropical cyclone that is approaching slowly, through the Atlantic, to the western part of the Caribbean. This cyclone originated on 30 August 2017 as a tropical storm and on 31st August got intensified with increasing winds from 100km/h to 185km/h. As of 4 September 2017, IRMA-17 is located about 900km east of the Leeward Islands. Maximum sustained winds are 222km/h, a Category 3. According to the expected cyclone track, the center of IRMA-17 is forecasted to approach the northern Leeward Islands late Tuesday.
Based on data of the predicted tropical cyclone path, wind speeds from JRC (Warning 21 issued on 4 September 2017 at 15:00 UTC), and population data from WorldPop, UNITARUNOSAT conducted a population exposure analysis for Caribbean, where more than 427,000 people are living within 120km/h wind speed zone and more than 13,500,000 people are living within wind speed zone of 90 km/h.