Strong Wind in American Samoa
Every strong wind event the National Weather Service has filed in American Samoa, year by year, with the most significant episodes. Non-thunderstorm winds below high wind criteria that nonetheless caused damage or casualties.
The most significant on the map
The most significant strong wind episodes in American Samoa.
- Tornadoes
- Tropical storms and surge
- Floods
- Wind
- Hail
- Winter weather
- Heat and drought
- Cold
- Fire, smoke and dust
- Marine and coastal
- Other
The record
- Events
- 36
- Deaths
- 0
- Injuries
- 0
- Damage
- $7.6 million
Every year
The most significant
Ranked by deaths, injuries, damage and size together.
- Hurricane and High Surf in American Samoa, February 14 to 18, 2005Hurricane Olaf, a Category 5, had sustained maximum winds of "160 mph and gusts to 190 mph. Waves up to 40 feet high hit some islands." Olaf made landfall over Manu'a Islands, causing severe damages to homes, crops, and highways on February 16th.
- Flash Flooding and Flood in American Samoa, January 5 to 10, 2025From January 6th through January 10th, a strong South Pacific Convergence Zone (SPCZ) strengthened over the American Samoa islands. WSO Pago Pago recorded 16.33 inches of rain during these 5 days and 21.39 inches of rainfall was measured from Jan 04th through the 10th.
- Flash Flooding and Flooding in American Samoa, February 17 to 22, 2025From the evening of February 16th to the morning of February 22nd, a strong South Pacific Convergence Zone (SPCZ) moved over Tutuila, Aunu'u, and the Manu'a islands of American Samoa, bringing sustained heavy rainfall and high winds across the territory.
- Strong Wind in American Samoa, July 2 to 3, 2013An active cold front near American Samoa combined with a strong high pressure to the south of Tutuila and Manua have generated strong gusty winds up to 45 mph.
- Strong Wind in American Samoa, February 5 to 6, 2012A strong monsoonal trough near the Samoan Islands was associated with strong winds and heavy rainfall. This monsoon trough triggered gusty northwest winds, and the Weather Service Office recorded a peak gust of 51 mph on the morning of February 6th.
- High Surf and Strong Wind in American Samoa, July 3 to 7, 2021An active surface trough moved over the territory on the weekend of July 4th. This feature produced widespread impacts of flash flooding, coastal erosion, and landslides.
- Flash Flood and Coastal Flood in American Samoa, May 7 to 10, 2025From May 5th through May 9th, a ridge from the south of the islands interacted with an equatorial trough to the north. This created high winds on the 6th through the 8th with gusts reaching around 55 mph at WSO Pago Pago.
- Flash Flood and High Wind in American Samoa, February 16 to 17, 2020An extremely active monsoonal trough in the region of American Samoa, generated an extended period of damaging winds, high surf and flooding rains.
- Strong Wind in American Samoa, April 3 to 4, 2017A very active monsoonal trough generated strong northerly winds across American Samoa. The Weather Service Office in Tafuna recorded maximum sustained winds of 31 knots with gusts up to 45 knots.
- Coastal Flood and High Wind in American Samoa, February 20, 2020Tropical Depression 09F originally formed northwest of Savaii in an expansive area of deep convection and tropical instability, which was reflected well in the rapidly cooling cloud top temperatures noted on IR satellite.
- Strong Wind in American Samoa, June 28 to 30, 2019A strong ridge of high pressure to the south interacts with a surface trough to the north causing high winds over the territory.
- Heavy Rain and Strong Wind in American Samoa, January 16 to 18, 2020An active monsoonal trough lifted across the area from the 17th of January until the week after. This weather event produced heavy showers and strong winds over the territory, which caused landslides and flooded roadways as well as downed trees and power lines.
- Strong Wind in American Samoa, September 17, 2025A trough lingered over the islands on September 16th and 17th, producing periods of heavy rainfall. The heaviest rainfall occurred on the morning of the 17th. WSO Pago Pago station recorded 5.46 inches of rain between midnight and 3 AM..
- Strong Wind in American Samoa, February 22, 2007Strong and gusty northwest winds demolished several banana plantations and broke tree branches early Thursday morning.
- Strong Wind in American Samoa, April 2, 2005A combination of strong trade and east winds across the Islands generated debris along highways and recreational areas. Isolated plantations at higher elevations were damaged from strong winds.
- Strong Wind in American Samoa, April 21, 2005A developing Tropical Depression about 300 miles southwest of Tutuila impacted local condition over Tutuila and Manu'a Islands on April 21st. Increasing downslope winds affected most residents in Tutuila and Manu'a, causing downed plantation for some farmers on Tutuila.
- Strong Wind in American Samoa, March 13 to 14, 2005Strong northwest winds were associated with an intense trough located within 300 miles west of Tutuila between the 13th and the 14th. The Weather Service Office recorded a peak wind of 35 mph on the 13th and 43 mph on the 14th.
- Strong Wind in American Samoa, September 23, 2019A strong ridge south of the territory ushered strong southeasterly trades of 25 to 35 kts.
- Strong Wind in American Samoa, December 30, 2019An active trough south of the islands associated with tropical storm Sarai and a building ridge north of the trough produced tight pressure gradients over the Samoa Island Chain.
- Strong Wind in American Samoa, May 1, 2022Breezy conditions and building swells produced rough sea-conditions for mariners.
More
Sources
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24.