Tropical Storm Percy (1987)

Basin

Western Pacific

Dates

April 3, 1987 to April 16, 1987

Peak strength

Tropical Storm, 40 kt (46 mph)

Lowest pressure

1000 mb (29.53 inHg)

Landfall

No; closest approach 303 km (188 mi)

Accumulated cyclone energy

0.6

Identifier

WP021987

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.

• Typhoon OrchidWestern Pacific · 1987Cat 295 kt · 955 mb
• Tropical Storm RuthWestern Pacific · 1987Tropical Storm35 kt · 992 mb
• Unnamed tropical depressionWestern Pacific · 1987Tropical Depression
• Typhoon SperryWestern Pacific · 1987Cat 175 kt · 980 mb
• Super Typhoon ThelmaWestern Pacific · 1987Cat 4130 kt · 915 mb
• Typhoon VernonWestern Pacific · 1987Cat 165 kt · 985 mb
• Typhoon AlexWestern Pacific · 1987 · 126 deathsCat 165 kt · 970 mb
• Super Typhoon BettyWestern Pacific · 1987Cat 5140 kt · 890 mb
• Typhoon CaryWestern Pacific · 1987Cat 285 kt · 960 mb
• Unnamed tropical stormWestern Pacific · 1987Tropical Storm35 kt · 1002 mb
• Unnamed tropical depressionWestern Pacific · 1987Tropical Depression
• Super Typhoon DinahWestern Pacific · 1987Cat 4130 kt · 915 mb
• Tropical Storm EdWestern Pacific · 1987Tropical Storm35 kt
• Super Typhoon HollyWestern Pacific · 1987Cat 5140 kt · 900 mb
• Typhoon GeraldWestern Pacific · 1987Cat 3105 kt · 950 mb
• Unnamed tropical depressionWestern Pacific · 1987Tropical Depression
• Typhoon FredaWestern Pacific · 1987Cat 4125 kt · 915 mb
• Typhoon IanWestern Pacific · 1987Cat 3110 kt · 955 mb
• Unnamed tropical depressionWestern Pacific · 1987Tropical Depression30 kt
• Tropical Storm JuneWestern Pacific · 1987Tropical Storm40 kt · 992 mb
• Typhoon KellyWestern Pacific · 1987Cat 295 kt · 955 mb
• Super Typhoon LynnWestern Pacific · 1987Cat 5140 kt · 920 mb
• Tropical Storm MauryWestern Pacific · 1987Tropical Storm45 kt · 994 mb
• Super Typhoon NinaWestern Pacific · 1987Cat 5145 kt · 930 mb
• Tropical Storm OgdenWestern Pacific · 1987Tropical Storm45 kt
• Typhoon PhyllisWestern Pacific · 1987Cat 3100 kt · 960 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.