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Hurricane Irma (2017)

Hurricane Irma was a Category 5 hurricane at its peak, with 178 mph winds and a lowest pressure of 914 mb, per NOAA's National Hurricane Center. Modeled winds reached tropical-storm force (39 mph) at 16 of the cities we track; the strongest was Naples, FL, with a modeled peak gust of 113 mph.

Peak strength178 mph winds (1-minute)
Category 5
Cities with tropical-storm-force windsModeled, of the cities we track
16
LandfallsFirst September 6, 2017
7
Lowest pressure
914 mb

Track, wind field and cities

Select a piece of the track or a city for details.

  • Depression or weaker
  • Tropical storm
  • Hurricane, Category 1 or 2
  • Major hurricane, Category 3 to 5
  • Landfall
  • City (larger ring, stronger modeled gust)
  • Modeled wind field, 39 to 111 mph sustained (darker, stronger; orange 111 mph+)
Source: NOAA/NWS National Hurricane Center best track (HURDAT2). City winds and the wind field are modeled.

The shaded areas are where our model puts Hurricane Irma’s sustained winds over open land at 39 mph or more (tropical-storm force), 58, 74 (hurricane force) and 111 mph (major hurricane force) at some point along its track. Modeled, not measured. How we model hurricane winds

Landfalls

  1. September 6, 2017, Category 5 at 178 mph, in Antigua and Barbuda
  2. September 6, 2017, Category 5 at 178 mph, in Saint-Martin
  3. September 6, 2017, Category 5 at 178 mph, in the British Virgin Islands
  4. September 8, 2017, Category 4 at 155 mph, in the Bahamas
  5. September 9, 2017, Category 5 at 167 mph, in Cuba
  6. September 10, 2017, Category 4 at 132 mph, about 102 miles from Naples, FL
  7. September 10, 2017, Category 3 at 115 mph, about 18 miles from Naples, FL

Modeled winds at cities (16)

Estimated peak winds for open, flat ground at each city’s center. Not measurements. How we model hurricane winds

CityPeak gustSustainedClosest passPeak
Naples, FL113 mph92 mph6 milesSep 10, 2017, 3:30 PM EDT
Cape Coral, FL88 mph72 mph18 milesSep 10, 2017, 6:00 PM EDT
North Port, FL78 mph63 mph24 milesSep 10, 2017, 7:15 PM EDT
Lakeland, FL78 mph63 mph11 milesSep 11, 2017, 12:00 AM EDT
Tampa, FL77 mph63 mph21 milesSep 11, 2017, 1:15 AM EDT
Ocala, FL71 mph58 mph23 milesSep 11, 2017, 4:30 AM EDT
Port St. Lucie, FL69 mph56 mph87 milesSep 10, 2017, 8:00 PM EDT
Orlando, FL69 mph56 mph57 milesSep 11, 2017, 12:45 AM EDT
Miami, FL69 mph56 mph93 milesSep 10, 2017, 1:15 PM EDT
Palm Bay, FL67 mph54 mph84 milesSep 10, 2017, 9:45 PM EDT
Gainesville, FL66 mph54 mph22 milesSep 11, 2017, 6:15 AM EDT
Deltona, FL65 mph53 mph72 milesSep 11, 2017, 2:00 AM EDT
Show all 16

What happened

After hitting the northeastern Caribbean and Cuba as a Category 5 hurricane, Irma made landfall near Cudjoe Key in the lower Florida Keys at about 1300 UTC (9 a.m. EDT) on September 10, 2017, as a Category 4 with 115-knot (132 mph) winds.1 It made a second Florida landfall near Marco Island at 1930 UTC (3:30 p.m. EDT) as a Category 3 with 100-knot (115 mph) winds.1

Surge and tide put 5 to 8 feet of water above ground from Cudjoe Key east to Big Pine Key and Bahia Honda Key, and 4 to 6 feet in the Middle and Upper Keys.1 Water rose 3 to 5 feet above ground from Marco Island through Naples to Fort Myers.1 Water rose 4 to 6 feet above ground along Biscayne Bay in Miami-Dade County and 3 to 5 feet from Cape Canaveral north to the Georgia line.1 Naples Municipal Airport measured a 123-knot (142 mph) gust.1 Rain totaled 21.66 inches near Fort Pierce, and rivers at major or record flood stage sent water into Jacksonville streets up to 5 feet deep in places.1 Irma produced 25 tornadoes, including an EF2 in Mims, Florida, that caused severe roof damage to numerous homes.1

In the Florida Keys, FEMA estimated that 25 percent of buildings were destroyed and 65 percent significantly damaged.1 In Collier County, at least 88 buildings were destroyed and 1,500 badly damaged, and most structures in Everglades City had major wind or water damage.1 About 1,000 homes had major damage in Miami-Dade County, and more than 7,000 homes were damaged in Brevard County, 450 of them destroyed or with major damage.1 NOAA's National Centers for Environmental Information estimates about $50.0 billion in U.S. damage.1 NHC counts 10 direct U.S. deaths, seven of them in Florida.1

Sources

  1. 1. NOAA National Hurricane Center: Tropical Cyclone Report: Hurricane Irma (AL112017)

Best track (66 positions)

TimeStatusWindPressurePosition
Aug 30, 00:00 UTCTropical depression35 mph1008 mb16.1°N, 26.9°W
Aug 30, 06:00 UTCTropical storm40 mph1007 mb16.2°N, 28.3°W
Aug 30, 12:00 UTCTropical storm52 mph1006 mb16.3°N, 29.7°W
Aug 30, 18:00 UTCTropical storm58 mph1004 mb16.3°N, 30.8°W
Aug 31, 00:00 UTCTropical storm63 mph999 mb16.3°N, 31.7°W
Aug 31, 06:00 UTCCategory 1 hurricane75 mph994 mb16.4°N, 32.5°W
Aug 31, 12:00 UTCCategory 1 hurricane92 mph983 mb16.7°N, 33.4°W
Aug 31, 18:00 UTCCategory 2 hurricane109 mph970 mb17.1°N, 34.2°W
Sep 1, 00:00 UTCCategory 3 hurricane115 mph967 mb17.5°N, 35.1°W
Sep 1, 06:00 UTCCategory 3 hurricane115 mph967 mb17.9°N, 36.1°W
Sep 1, 12:00 UTCCategory 3 hurricane115 mph967 mb18.4°N, 37.3°W
Sep 1, 18:00 UTCCategory 3 hurricane115 mph967 mb18.8°N, 38.5°W
Show all 66