Tropical Storm Irene (1947)

Basin

Western Pacific

Dates

November 29, 1947 to December 3, 1947

Peak strength

Tropical Storm, 45 kt (52 mph)

Landfall

Yes

Accumulated cyclone energy

1.4

Identifier

WP261947

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.

• Tropical Storm AnnaWestern Pacific · 1947Tropical Storm35 kt
• Unnamed tropical depressionWestern Pacific · 1947Tropical Depression
• Unnamed tropical depressionWestern Pacific · 1947Tropical Depression
• Typhoon BernidaWestern Pacific · 1947Cat 180 kt
• Unnamed tropical depressionWestern Pacific · 1947Tropical Depression
• Typhoon CarolWestern Pacific · 1947Cat 3100 kt
• Unnamed tropical depressionWestern Pacific · 1947Tropical Depression
• Tropical Storm DonnaWestern Pacific · 1947Tropical Storm35 kt
• Unnamed tropical depressionWestern Pacific · 1947Tropical Depression
• Tropical Storm EileenWestern Pacific · 1947Tropical Storm35 kt
• Tropical Storm FaithWestern Pacific · 1947Tropical Storm50 kt
• Typhoon GwenWestern Pacific · 1947Cat 3100 kt
• Unnamed tropical depressionWestern Pacific · 1947Tropical Depression
• Typhoon HelenaWestern Pacific · 1947Cat 170 kt
• Unnamed tropical depressionWestern Pacific · 1947Tropical Depression
• Unnamed tropical depressionWestern Pacific · 1947Tropical Depression
• Typhoon InezWestern Pacific · 1947Cat 3100 kt
• Tropical Storm JoyceWestern Pacific · 1947Tropical Storm35 kt
• Typhoon KathleenWestern Pacific · 1947Cat 290 kt
• Typhoon LauraWestern Pacific · 1947Cat 290 kt
• Typhoon MildredWestern Pacific · 1947Cat 175 kt
• Unnamed tropical depressionWestern Pacific · 1947Tropical Depression
• Unnamed tropical depressionWestern Pacific · 1947Tropical Depression
• Typhoon NanetteWestern Pacific · 1947Cat 290 kt
• Typhoon PaulineWestern Pacific · 1947Cat 3100 kt
• Typhoon OliveWestern Pacific · 1947Cat 3110 kt
• Super Typhoon RosalindWestern Pacific · 1947Cat 4130 kt
• Typhoon AliceWestern Pacific · 1947Cat 4120 kt
• Tropical Storm BeatriceWestern Pacific · 1947Tropical Storm45 kt
• Typhoon CathyWestern Pacific · 1947Cat 3100 kt
• Typhoon DoraWestern Pacific · 1947Cat 3100 kt
• Tropical Storm ElnoraWestern Pacific · 1947Tropical Storm50 kt
• Unnamed tropical depressionWestern Pacific · 1947Tropical Depression
• Typhoon FloraWestern Pacific · 1947Cat 3110 kt
• Typhoon GladysWestern Pacific · 1947Cat 175 kt
• Typhoon HannahWestern Pacific · 1947Cat 3100 kt
• Unnamed tropical depressionWestern Pacific · 1947Tropical Depression
• Typhoon JeanWestern Pacific · 1947Cat 295 kt

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.