Tropical Storm Irma (1963)

Basin

Western Pacific

Dates

September 16, 1963 to September 22, 1963

Peak strength

Tropical Storm, 40 kt (46 mph)

Lowest pressure

1002 mb (29.59 inHg)

Landfall

Yes

Accumulated cyclone energy

0.6

Identifier

WP161963

No source this site reads publishes a machine-readable casualty or damage figure for a storm of this era. The National Hurricane Center’s season tables begin in 1995 and carry deaths and damage only from 2005 in the Atlantic and 2020 in both basins; the US Storm Events record begins in 1996.

• Unnamed tropical depressionWestern Pacific · 1963Tropical Depression
• Unnamed tropical depressionWestern Pacific · 1963Tropical Depression
• Typhoon OliveWestern Pacific · 1963Cat 4125 kt · 920 mb
• Typhoon PollyWestern Pacific · 1963Cat 170 kt · 978 mb
• Tropical Storm RoseWestern Pacific · 1963Tropical Storm50 kt · 980 mb
• Super Typhoon ShirleyWestern Pacific · 1963Cat 5140 kt · 935 mb
• Typhoon TrixWestern Pacific · 1963Cat 170 kt · 984 mb
• Tropical Storm VirginiaWestern Pacific · 1963Tropical Storm50 kt · 990 mb
• Super Typhoon WendyWestern Pacific · 1963Cat 4135 kt · 930 mb
• Unnamed tropical depressionWestern Pacific · 1963Tropical Depression
• Typhoon AgnesWestern Pacific · 1963Cat 285 kt · 992 mb
• Tropical Depression WendyWestern Pacific · 1963Tropical Depression
• Super Typhoon BessWestern Pacific · 1963Cat 4130 kt · 930 mb
• Unnamed tropical depressionWestern Pacific · 1963Tropical Depression
• Typhoon CarmenWestern Pacific · 1963Cat 4125 kt · 930 mb
• Unnamed tropical depressionWestern Pacific · 1963Tropical Depression
• Typhoon ElaineWestern Pacific · 1963Cat 3100 kt · 965 mb
• Typhoon DellaWestern Pacific · 1963Cat 3100 kt · 975 mb
• Unnamed tropical depressionWestern Pacific · 1963Tropical Depression
• Unnamed tropical depressionWestern Pacific · 1963Tropical Depression
• Typhoon FayeWestern Pacific · 1963Cat 3110 kt · 960 mb
• Unnamed tropical depressionWestern Pacific · 1963Tropical Depression
• Super Typhoon GloriaWestern Pacific · 1963Cat 4135 kt · 920 mb
• Tropical Storm HesterWestern Pacific · 1963Tropical Storm45 kt · 998 mb
• Unnamed tropical depressionWestern Pacific · 1963Tropical Depression
• Super Typhoon JudyWestern Pacific · 1963Cat 5150 kt · 920 mb
• Unnamed tropical depressionWestern Pacific · 1963Tropical Depression
• Super Typhoon KitWestern Pacific · 1963Cat 4135 kt · 930 mb
• Super Typhoon LolaWestern Pacific · 1963Cat 4130 kt · 943 mb
• Unnamed tropical depressionWestern Pacific · 1963Tropical Depression
• Typhoon MamieWestern Pacific · 1963Cat 3100 kt · 965 mb
• Tropical Storm NinaWestern Pacific · 1963Tropical Storm40 kt
• Typhoon OraWestern Pacific · 1963Cat 180 kt · 980 mb
• Unnamed tropical depressionWestern Pacific · 1963Tropical Depression
• Typhoon PhyllisWestern Pacific · 1963Cat 175 kt · 994 mb
• Tropical Storm RitaWestern Pacific · 1963Tropical Storm40 kt · 998 mb
• Super Typhoon SusanWestern Pacific · 1963Cat 4135 kt · 935 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.