Во время существования «Ирмы» впервые с 2010 года повторилась ситуация, когда в Атлантическом океане находилось сразу три урагана: «[[Катя (ураган)|Катя]]», «Ирма» и «[[Хосе (ураган)|Хосе]]»<ref>{{Cite news|url=http://www.edition.cnn.com/2017/09/06/americas/three-hurricanes-atlantic-basin/index.html|title=Three hurricanes now in the Atlantic basin|last=Grinberg|first=Emanuella|date=7 September 2017|work=CNN|access-date=7 September 2017|archive-url=|archive-date=|dead-url=}}</ref>.
По данным на 27 сентября жертвамиЖертвами урагана стали не менее 124134 человек<ref name="Yahoo News death toll">{{cite web|last1=Innerarity|first1=Andrew|last2=Ortiz|first2=Ricardo|title=Florida governor vows aggressive probe of Irma nursing home deaths|url=https://www.yahoo.com/news/floridians-assess-irmas-wreckage-death-toll-mounts-010709584--finance.html|publisher=Yahoo News|accessdate=13 September 2017}}</ref><ref name="ABC News - U.S. death toll">{{cite web|last1=Shapiro|first1=Emily|last2=Allen|first2=Karma|last3=Jacobo|first3=Julia|title=Irma leaves 9 dead in US, 'devastation' in Florida Keys|url=http://abcnews.go.com/US/irma-leaves-dead-florida-37-dead-caribbean-millions/story?id=49758372|publisher=ABC News|accessdate=11 September 2017}}</ref><ref>{{Cite news|url=http://www.bbc.com/news/live/world-latin-america-41177350|title=Irma weakens but still wreaks chaos|last=(now)|first=Alastair Lawson|date=September 11, 2017|publisher=BBC|access-date=September 11, 2017|last2=Jackson|first2=Patrick|language=en-GB|issn=|last3=(earlier)|first3=Courtney Subramanian}}</ref><ref name="guardianlive"/><ref>{{Cite news|url=http://www.express.co.uk/news/world/850844/Hurricane-Irma-deaths-casualties-caribbean-french-territories-emmanuel-macron-irma-path|title=Hurricane Irma: Three dead as Caribbean islands battered in 'hard and cruel' conditions|last=Millar|first=Joey|date=2017-09-06|work=Express.co.uk|access-date=2017-09-06|language=en}}</ref><ref name="bt">{{cite news|url=https://www.barbadostoday.bb/2017/09/05/young-surfers-death-comes-as-a-shock/|title=Young surfer’s death comes as a shock|date=September 5, 2017|newspaper=Barbados Today|accessdate=September 5, 2017}}</ref><ref name="guardlive2">{{cite web|url=https://www.theguardian.com/world/live/2017/sep/09/hurricane-irma-florida-evacuate-landfall-cuba-live-latest|title=Hurricane Irma|publisher=The Guardian|accessdate=2017-09-09}}</ref>. Материальный ущерб оценивается в более чем 60 млрд долларов США.
