Tropical Storm Iris (2018)

Basin

South Pacific

Dates

March 22, 2018 to April 9, 2018

Peak strength

Tropical Storm, 55 kt (63 mph)

Lowest pressure

987 mb (29.15 inHg)

Landfall

No; closest approach 214 km (133 mi)

Accumulated cyclone energy

3.7

Identifier

SH172018

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

• Tropical Storm FehiSouth Pacific · 2018Tropical Storm55 kt · 970 mb
• Cyclone GitaSouth Pacific · 2018Cat 4125 kt · 929 mb
• Cyclone HolaSouth Pacific · 2018Cat 3105 kt · 950 mb
• Tropical Storm LindaSouth Pacific · 2018Tropical Storm55 kt · 989 mb
• Cyclone NoraSouth Pacific · 2018Cat 3100 kt · 956 mb
• Tropical Storm JosieSouth Pacific · 2018Tropical Storm50 kt · 994 mb
• Cyclone KeniSouth Pacific · 2018Cat 290 kt · 968 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.