Weather of 2017

Flooding in China's Hunan province in July 2017

The following is a list of weather events that occurred in 2017.

Global conditions

Monthly summary

Summary by weather type

Winter storms and cold waves

Floods

Droughts, heat waves, and wildfires

Tornadoes

EF2 tornado near Carpenter, Wyoming.

Tropical cyclones

Satellite image of Hurricane Maria nearing Puerto Rico

The first tropical cyclone of the year was a tropical disturbance in the South Pacific, which formed on January 2 over the Solomon Islands. It was the first of 20 tropical cyclones in the South Pacific during the year, including Cyclone Donna, which became the strongest cyclone on record in the basin in the month of May, with 10 minute sustained winds of 205 km/h (125 mph). In the neighboring Australian basin, there were 28 tropical cyclones, most of them weak; however, Cyclone Ernie in April reached Category 5 intensity on the Australian tropical cyclone intensity scale, with 10 minute sustained winds of 220 km/h (140 mph). Cyclone Debbie struck Queensland in March, causing A$3.5 billion (US$2.67 billion) in damage and 14 deaths across Australia. In November, Cyclone Cempaka killed 41 people in Indonesia from heavy rainfall. The south-west Indian Ocean was quiet, with only six tropical cyclones during the year. Of these, Cyclone Dineo in February killed at least 258 people when it moved through Mozambique and Zimbabwe. Cyclone Enawo struck Madagascar in March, killing 78 people. There was also a subtropical cycloneGuará – which formed off Brazil in December.

In the northern hemisphere, activity began on January 7, when a tropical depression formed and later moved across the Philippines, killing 11 people. It was the first of 41 tropical cyclones in the western Pacific Ocean in the year. The final two storms of the season – Kai-tak and Tembin – moved through the Philippines in December, together causing 406 deaths. The year's costliest typhoon was Hato, which left more than US$4.34 billion in damage when it moved ashore southern China near Hong Kong. In the north Indian Ocean, there were 10 tropical cyclones, which included several deadly storms. Cyclone Ockhi in December killed more than 137 people in Sri Lanka and southern India. There were 20 tropical cyclones in the eastern Pacific Ocean, including Tropical Storm Lidia, which killed 20 people when it struck western Mexico.

In the Atlantic Ocean, activity began in April and lasted until November, with 18 tropical cyclones, including several deadly and costly storms. In August, Hurricane Harvey struck southeastern Texas and subsequently stalled over the state, dropping 60.58 in (1,539 mm) of rainfall; this was the highest amount of precipitation associated with a tropical cyclone in the United States. The rains caused widespread flooding along the storm's path, particularly near Houston, resulting in more than 100 fatalities and US$125 billion in damage, tying Harvey with Hurricane Katrina in 2005 as the costliest United States hurricane. In September, Hurricane Irma struck the northern Lesser Antilles and later Cuba as a Category 5 hurricane, and later Florida at a lower intensity, causing more than US$50 billion in damage and 139 deaths. Two weeks after Irma, Hurricane Maria struck Dominica as a Category 5 hurricane and later Puerto Rico as a Category 4 hurricane, causing US$90 billion in damage and more than 3,000 deaths, mostly in Puerto Rico. Also during the season, Hurricane Nate produced damaging floods across Central America, killing 45 people.

In addition to the above cyclones, there was a Mediterranean tropical-like cyclone called Cyclone Numa, which killed 22 people when it struck Greece.

Timeline

This is a timeline of weather events during 2017. Please note that entries might cross between months, however, all entries are listed by the month they started.

January

February

March

April

May

June

July

August

September

October

November

December

  • December 23, 2017 – January 19, 2018 – A cold wave caused damaging low temperatures across eastern North America. The cold wave also caused Tallahassee, Florida to receive trace amounts of frozen precipitation for the first time in more than 30 years.

See also



This page was last updated at 2022-02-04 19:36 UTC. Update now. View original page.

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