Hurricane Irwin (2017)

Basin

Eastern Pacific

Dates

July 22, 2017 to August 3, 2017

Peak strength

Category 1, 80 kt (92 mph)

Lowest pressure

979 mb (28.91 inHg)

Landfall

No; closest approach 925 km (575 mi)

Accumulated cyclone energy

11.1

Tropical-storm-force wind reached

80 nmi (148 km, 92 mi) from the center at its widest

Hurricane-force wind reached

15 nmi (28 km, 17 mi) from the center at its widest

Eyewall radius at its peak

15 nmi (28 km, 17 mi)

Overall size

180 nmi (333 km, 207 mi) to the outermost closed isobar

Peak gust in the best track

100 kt (115 mph)

Fastest the center moved

12 kt (14 mph)

Identifier

EP102017

No source this site reads carries a casualty or damage figure for this storm.

• Tropical Storm AdrianEastern Pacific · 2017Tropical Storm40 kt · 1004 mb
• Tropical Storm BeatrizEastern Pacific · 2017Tropical Storm40 kt · 1001 mb
• Tropical Storm CalvinEastern Pacific · 2017Tropical Storm40 kt · 1004 mb
• Hurricane DoraEastern Pacific · 2017Cat 290 kt · 974 mb
• Hurricane EugeneEastern Pacific · 2017Cat 3100 kt · 966 mb
• Hurricane FernandaEastern Pacific · 2017Cat 4125 kt · 948 mb
• Unnamed tropical depressionEastern Pacific · 2017Tropical Depression30 kt · 1007 mb
• Tropical Storm GregEastern Pacific · 2017Tropical Storm50 kt · 1000 mb
• Hurricane HilaryEastern Pacific · 2017Cat 295 kt · 969 mb
• Unnamed tropical depressionEastern Pacific · 2017Tropical Depression30 kt · 1006 mb
• Tropical Storm JovaEastern Pacific · 2017Tropical Storm35 kt · 1003 mb
• Hurricane KennethEastern Pacific · 2017Cat 4115 kt · 951 mb
• Tropical Storm LidiaEastern Pacific · 2017Tropical Storm55 kt · 986 mb
• Hurricane OtisEastern Pacific · 2017Cat 3100 kt · 965 mb
• Hurricane MaxEastern Pacific · 2017Cat 180 kt · 980 mb
• Hurricane NormaEastern Pacific · 2017Cat 165 kt · 985 mb
• Tropical Storm PilarEastern Pacific · 2017Tropical Storm45 kt · 1000 mb
• Tropical Storm RamonEastern Pacific · 2017Tropical Storm40 kt · 1002 mb
• Tropical Storm SelmaEastern Pacific · 2017Tropical Storm35 kt · 1004 mb

A best track is the record a warning agency settles on after the storm, not what it said at the time: position, maximum sustained wind and central pressure every six hours, revised against every observation that came in later. Category is the Saffir-Simpson scale, which runs from Category 1 at 64 kt to Category 5 at 137 kt and reads wind only, so it says nothing about surge or rain. Accumulated cyclone energy adds up the square of the wind through the storm's life, so it counts strength and duration together.

Storm history from NOAA NCEI’s International Best Track Archive for Climate Stewardship (IBTrACS), which merges the official best track of every warning agency. Live storms, cones, watches and warnings from the National Hurricane Center and the Central Pacific Hurricane Center. Archived radar from NOAA’s Level II archive.

• Tropical cyclone report, National Hurricane Center
• Every advisory and discussion NHC issued while it was live
• Best track as KMZ, National Hurricane Center
• Best track as a shapefile, National Hurricane Center