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For Planet X, 2017 featured the 2017 Pacific typhoon season. It had no official seasonal boundaries, but most tropical cyclones tend to form in the northwestern Pacific Ocean between June and December; however, activity occured in every month of the year. These dates conventionally delimit the period of each year when most tropical cyclones form in the northwestern Pacific Ocean. In terms of accumulated cyclone energy (ACE), this was the most hyperactive Planet X tropical cyclone season worldwide, generating an overall ACE of 496.75.

The scope of this article is limited to the Pacific Ocean, north of the Equator and west of the International Date Line. Storms that form east of the Date Line and north of the Equator are called hurricanes. Tropical storms forming across the entire West Pacific basin were assigned a name by the Joint Typhoon Warning Center (JTWC). Tropical depressions in this basin have the "W" suffix added to their number by the JTWC. Tropical depressions that enter or form in the Philippine area of responsibility were assigned a name by the Philippine Atmospheric, Geophysical and Astronomical Services Administration (PAGASA), which can often result in one storm having two seperate names.

During the season, 66 areas of investigation and 36 total tropical depressions developed. All of the tropical depressions further intensified into nameable tropical storms, with 31 of them further intensifying into typhoons, and an additional 11 typhoons became super typhoons (a typhoon with 150 miles per hour (mph) winds or greater). While it is possible more of the investigation areas became tropical depressions, no historical records indicate more than 36 total depressions forming during the season. Nevertheless, the storm activity statistics all represent record highs for their respective categories; this can partially be attributed to the JTWC deploying more weather satellites across the Pacific this year than previous years, meaning the agency could now collect more data than it previously could from active storms across the basin. All the storms and typhoons in this season were assigned a name and a number.

Impactwise, the 2017 Planet X Pacific typhoon season was a devestating year for China, the Philippines, Japan, and Korea. Many areas suffered more damage and deaths this season than in previous years. Overall, total damages during the year reached $7 billion (2017 USD), and an approximate total of 16,000 fatalities was reported.

Seasonal summary[]

Timeline of tropical activity in 2017 Planet X Pacific typhoon season

Wikipedia:Saffir-Simpson Hurricane Scale
Quinn-Roman-Sukru-Timmie Quadruplets

Four typhoons, Quinn (System A), Roman (System B), Sukru (System C), and Timmie (System D) spinning about the Western Pacific on October 16, 2017.

One hundred and five tropical waves formed during the 2017 Planet X Pacific typhoon season. However, only 66 of the tropical waves became easterly waves. Thirty-six of the easterly waves became tropical depressions, all of which became named tropical storms. Thirty-one of the tropical storms became typhoons, and 11 of the typhoons further intensified into super typhoons, an unsually high number. Those storms were Quirin, Wilbur, Yoda, Friedhelm, James, Kurt, Paolini, Quinn, Roman, Sukru, and Ulli. The amount of strong storms forming this season can be attributed to the strongest Planet X El Niño recorded, which persisted from October 2016 to November 2017. Unfortunately, with the exception of Kurt and Ulli, all of the season's strongest systems caused significant land impact, and two-thirds of the seasons storms had some land impact.

East of the International Date Line, the Central Pacific Hurricane Center (CPHC), a branch of the JTWC monitoring the Central Pacific tropical cyclone basin, did not monitor any tropical depressions. However, the extratropical remnants of three typhoons - Paolini, Quinn, and Roman, entered the basin. In addition, in the Bering Sea, which is monitored by the CPHC, the remnants of Nemo, Rolf, Tronje, Valerian, Wilbur, Yoda, Friedhelm, Hunter, Kurt, Leon, Miekel, Olaf, Paolini, Quinn, Sukru, and Ulli entered it. Also, the remains of Uranus, Zeus, Duncan, Gerald, Roman, Timmie, and Wolfgang just barely missed entering the Bering Sea. Also, another unusual feature about the season was the high number of storms, 24, lasting a week or longer - Quirin, Uranus, Valerian, Wilbur, Xaver, Yoda, Zeus, Alfredo, Coppelius, Friedhelm, Inago, James, Kurt, Leon, Miekel, Norfried, Olaf, Paolini, Quinn, Roman, Sukru, Timmie, Ulli, and Viktor, with Kurt, the longest-lasting storm, existing 36 days as a tropical cyclone. No other Planet X tropical cyclone season has had as many week-long storms as the 2017 Pacific typhoon season did; for comparison, the average number worldwide is 15.

Records[]

The 2017 Planet X Pacific typhoon season featured many records alongisde the ones mentioned above. First, the seasons first sixteen storms became typhoons, an all-time record for any tropical cyclone basin on Planet X. Second, Quinn and James are tied for producing the highest non-tornandic wind gust on Planet X, 260 mph (420 kilometres per hour (km/h)). Third, two typhoons made landfall at Category 5 intensity on the SSHS (James, and Paolini), the only occurence of more than two Category 5 typhoons doing so in a single season. Fourth, of the five storms that attained Category 5 intensity during 2017 (Friedhelm, James, Paolini, Roman, and Ulli), all of them except Friedhelm attained minimum barometric pressures of under 900 millibars (mbar); no other Planet X cyclone season worldwide has had two or more storms achieve this feat. Fifth, two typhoons, James and Quinn, delivered hurricane-force winds to Hong Kong; no other Planet X typhoon season has accomplished this feat. Sixth, two Category 5 super typhoons (Paolini,, and Roman) were active on October 5, the one occasion this happened on Planet X. Similarly, three super typhoons (Quinn, Roman, and Sukru) were active on October 15–16, and four typhoons (Quinn, Roman, Sukru, and Timmie) were active on October 16 (see the image in this section above). Finally, Typhoon Quirin achieved super typhoon status earlier in the year than any other storm of that intensity. Typhoon Quinn attained category 6 intensity. The first time having to use it.

List of storms[]

Typhoon Nemo[]

Category 3 typhoon(JTWC)
Typhoon (JMA)
Nemo 2017
DurationJanuary 27 – February 2
Peak intensity190 km/h (120 mph) (1-min) 952 hPa (mbar)

Typhoon Orion[]

Category 1 typhoon(JTWC)
Typhoon (JMA)
Orion 2017
DurationFebruary 26 – March 2
Peak intensity140 km/h (85 mph) (1-min) 981 hPa (mbar)

Typhoon Orion caused $400 million (2017 USD) in damage to the Philippines and killed 200 people in both the Philippines and Vietnam, making it the nation's fourth costliest tropical cyclone.

From February 28 to March 1, PAGASA tracked Orion and gave it the alternative designator of Adam.

Typhoon Petor[]

Category 2 typhoon(JTWC)
(JTWC)
Petor 2017
DurationMarch 16 – March 22
Peak intensity195 km/h (120 mph) (1-min) 977 hPa (mbar)

From March 18 to March 22, PAGASA tracked Petor and gave it the alternative designator Boy.

Super Typhoon Quirin[]

Category 4 super typhoon(JTWC)
Typhoon (JMA)
Quirin 2017
DurationApril 8 – April 17
Peak intensity250 km/h (155 mph) (1-min) 915 hPa (mbar)

Typhoon Quirin caused $1.2 billion (2017 USD) in damage to Luzon Island and resulted in 800 reported fatalities, making it the nation's second costliest tropical cyclone.

From April 11 to April 13, PAGASA tracked Quirin and gave it the alternative designator Charles.

Typhoon Rolf[]

Category 2 typhoon(JTWC)
Typhoon (JMA)
Rolf 2017
DurationApril 21 – April 27
Peak intensity165 km/h (105 mph) (1-min) 971 hPa (mbar)

From April 22 to April 25, PAGASA tracked Rolf and gave it the alternative designator David.

Typhoon Sigurd[]

Category 3 typhoon(JTWC)
Typhoon (JMA)
Sigurd 2017
DurationMay 11 – May 17
Peak intensity195 km/h (120 mph) (1-min) 950 hPa (mbar)

Typhoon Tronje[]

Category 1 typhoon(JTWC)
Typhoon (JMA)
Tronje 2017
DurationMay 21 – May 27
Peak intensity140 km/h (85 mph) (1-min) 984 hPa (mbar)

From May 23 to May 24, PAGASA tracked Tronje and gave it the alternative designator Edward.

Typhoon Uranus[]

Category 4 typhoon(JTWC)
Typhoon (JMA)
Uranus 2017
DurationJune 4 – June 13
Peak intensity230 km/h (145 mph) (1-min) 931 hPa (mbar)

From June 4 to June 10, PAGASA tracked Uranus and gave it the alternative designator Frank.

Typhoon Valerian[]

Category 4 typhoon(JTWC)
Typhoon (JMA)
Valerian 2017
DurationJune 9 – June 21
Peak intensity215 km/h (130 mph) (1-min) 940 hPa (mbar)

Super Typhoon Wilbur[]

Category 4 super typhoon(JTWC)
Typhoon (JMA)
Wilbur 2017
DurationJune 13 – June 25
Peak intensity240 km/h (150 mph) (1-min) 934 hPa (mbar)

Typhoon Wilbur caused mass landslides across Japan.

Typhoon Xaver[]

Category 4 typhoon(JTWC)
Typhoon (JMA)
Xaver 2017
DurationJune 18 – June 29
Peak intensity230 km/h (145 mph) (1-min) 943 hPa (mbar)

From June 21 to June 26, PAGASA tracked Xaver and gave it the alternative designator George.

Super Typhoon Yoda[]

Category 4 super typhoon(JTWC)
Typhoon (JMA)
Yoda 2017
DurationJune 22 – July 3
Peak intensity250 km/h (155 mph) (1-min) 919 hPa (mbar)

Typhoon Zeus[]

Category 3 typhoon(JTWC)
Typhoon (JMA)
Zeus 2017
DurationJune 26 – July 5
Peak intensity195 km/h (120 mph) (1-min) 957 hPa (mbar)

From June 27 to June 29, PAGASA tracked Zeus and gave it the alternative designator Henry.

Typhoon Alfredo[]

Category 1 typhoon(JTWC)
Typhoon (JMA)
Alfredo 2017
DurationJuly 3 – July 11
Peak intensity150 km/h (90 mph) (1-min) 976 hPa (mbar)

Typhoon Bobby[]

Category 1 typhoon(JTWC)
Typhoon (JMA)
Bobby 2017
DurationJuly 7 – July 12
Peak intensity140 km/h (85 mph) (1-min) 981 hPa (mbar)

Typhoon Coppelius[]

Category 3 typhoon(JTWC)
Typhoon (JMA)
Coppelius 2017
DurationJuly 14 – July 23
Peak intensity185 km/h (115 mph) (1-min) 968 hPa (mbar)

From July 15 to July 23, PAGASA tracked Coppelius and gave it the alternative designator Ida.

Tropical Storm Duncan[]

Tropical storm(JTWC)
Tropical storm (JMA)
Duncan 2017
DurationJuly 21 – July 23
Peak intensity85 km/h (50 mph) (1-min) 995 hPa (mbar)

Severe Tropical Storm Erik[]

Tropical storm(JTWC)
Severe tropical storm (JMA)
Erik 2017
DurationJuly 29 – July 31
Peak intensity110 km/h (70 mph) (1-min) 986 hPa (mbar)

Super Typhoon Friedhelm[]

Category 5 super typhoon(JTWC)
Typhoon (JMA)
Friedhelm 2017
DurationAugust 1 – August 23
Peak intensity270 km/h (165 mph) (1-min) 905 hPa (mbar)

From August 13 to August 18, PAGASA tracked Friedhelm and gave it the alternative designator John.

Tropical Storm Gerald[]

Tropical storm(JTWC)
Tropical storm (JMA)
Gerald 2017
DurationAugust 4 – August 6
Peak intensity100 km/h (65 mph) (1-min) 990 hPa (mbar)

Severe Tropical Storm Hunter[]

Tropical storm(JTWC)
Severe tropical storm (JMA)
Hunter 2017
DurationAugust 8 – August 11
Peak intensity115 km/h (70 mph) (1-min) 987 hPa (mbar)

On August 10, PAGASA tracked Hunter and gave it the alternative designator King.

Typhoon Inago[]

Category 3 typhoon(JTWC)
Typhoon (JMA)
Inago 2017
DurationAugust 12 – August 19
Peak intensity185 km/h (115 mph) (1-min) 961 hPa (mbar)

Super Typhoon Kurt[]

Category 4 super typhoon(JTWC)
Typhoon (JMA)
Kurt 2017
DurationAugust 18 – September 23
Peak intensity250 km/h (155 mph) (1-min) 919 hPa (mbar)

Super Typhoon James[]

Category 5 super typhoon(JTWC)
Typhoon (JMA)
James 2017
DurationAugust 24 – September 17
Peak intensity270 km/h (165 mph) (1-min) 899 hPa (mbar)

Typhoon James battered Hong Kong with fierce hurricane-force winds. Total damages from the system $1.4 billion (2017 USD) ($700 million from the Philippines and $700 million to Chinese territory) and 9,000 fatalities were reported, making it the deadliest Planet X typhoon in historical records, the third costliest Philippines typhoon, and the second costliest Planet X tropical cyclone overall.

From August 30 to September 12, PAGASA tracked James and gave it the alternative designator Lincoln.

Typhoon Leon[]

Category 3 typhoon(JTWC)
Typhoon (JMA)
Leon 2017
DurationAugust 30 – September 8
Peak intensity200 km/h (125 mph) (1-min) 953 hPa (mbar)

Typhoon Miekel[]

Category 3 typhoon(JTWC)
Typhoon (JMA)
Miekel 2017
DurationSeptember 6 – September 14
Peak intensity195 km/h (120 mph) (1-min) 954 hPa (mbar)

From September 8 to September 10, PAGASA tracked Miekel and gave it the alternative designator Mary.

Typhoon Norfried[]

Category 4 typhoon(JTWC)
Typhoon (JMA)
Norfried 2017
DurationSeptember 12 – September 21
Peak intensity220 km/h (140 mph) (1-min) 929 hPa (mbar)

From September 14 to September 19, PAGASA tracked Norfried and gave it the alternative designator Nora.

Typhoon Olaf[]

Category 3 typhoon(JTWC)
Typhoon (JMA)
Olaf 2017
DurationSeptember 17 – September 26
Peak intensity185 km/h (115 mph) (1-min) 945 hPa (mbar)

Super Typhoon Paolini[]

Category 5 super typhoon(JTWC)
Typhoon (JMA)
Paolini 2017
DurationSeptember 21 – October 6
Peak intensity295 km/h (185 mph) (1-min) 885 hPa (mbar)

Typhoon Paolini sank hundreds of ships anchored around Shanghai and Seoul.

From September 25 to October 2, PAGASA tracked Paolini and gave it the alternative designator Ocean.

Super Typhoon Quinn[]

Category 6 super typhoon(JTWC)
Typhoon (JMA)
Quinn 2017
DurationSeptember 26 – October 17
Peak intensity345 km/h (215 mph) (1-min) 871 hPa (mbar)

Typhoon Quinn resulted in the first loss of a Hurricane Hunter aircraft on Planet X (the next storm to do so would be Typhoon Joachim the following year) and trashed shipping ports around Manila. Total losses reached $2.5 billion (2017 USD) ($1.4 billion to Luzon Island, $1 billion in China's Guangzhou region, and $100 million in inland regions of China), and 6,000 fatalities were reported, making the typhoon the second deadliest Planet X cyclone in historical records and the costliest Planet X typhoon.

In addition, Quinn was the strongest storm ever recorded on Planet X, although records before 2015 are unreliable.

From October 3 to October 15, PAGASA tracked Quinn and gave it the alternative designator Paul.

Super Typhoon Roman[]

Category 5 super typhoon(JTWC)
Typhoon (JMA)
Roman 2017
DurationOctober 1 – October 21
Peak intensity295 km/h (185 mph) (1-min) 875 hPa (mbar)

Typhoon Roman sank hundreds of ships anchored around Tokyo. Also, the typhoon achieved the fastest foreward speed of a Planet X tropical cyclone, 60 miles per hour (100 kilometres per hour).

From October 5 to October 9, PAGASA tracked Roman and gave it the alternative designator Queen.

Super Typhoon Sukru[]

Category 4 super typhoon(JTWC)
Typhoon (JMA)
Sukru 2017
DurationOctober 9 – October 23
Peak intensity250 km/h (155 mph) (1-min) 914 hPa (mbar)

Typhoon Timmie[]

Category 4 typhoon(JTWC)
Typhoon (JMA)
Timmie 2017
DurationOctober 13 – October 24
Peak intensity220 km/h (140 mph) (1-min) 937 hPa (mbar)

On October 15, PAGASA tracked Timmie and gave it the alternative designator Robert.

Super Typhoon Ulli[]

Category 5 super typhoon(JTWC)
Typhoon (JMA)
Ulli 2017
DurationOctober 21 – November 7
Peak intensity285 km/h (180 mph) (1-min) 890 hPa (mbar)

Typhoon Viktor[]

Category 3 typhoon(JTWC)
Typhoon (JMA)
Viktor 2017
DurationNovember 8 – November 15
Peak intensity195 km/h (120 mph) (1-min) 947 hPa (mbar)

Typhoon Viktor caused $200 million (2017 USD) in damage and 300 fatalities in the Philippines, making it the nation's fifth costliest tropical cyclone. From November 9 to November 13, PAGASA tracked Viktor and gave it the alternative designator Sam.

Tropical Storm Wolfgang[]

Tropical storm(JTWC)
Tropical storm (JMA)
Wolfgang 2017
DurationDecember 14 – December 16
Peak intensity100 km/h (65 mph) (1-min) 993 hPa (mbar)

Storm names[]

The following names were used to name storms that attained gale-force intensity in the Western Pacific tropical cyclone basin during 2017. All storms were named by the JTWC, which it has taken responsibility of since 2015. The names follow the common practice of using names allocated for European windstorms. Prior to 2029, all Planet X Western Pacific tropical cyclones were given masculine names. The first storm of the season was named Nemo and the last one Wolfgang. No names were retired after this season, as retirement of names did not commence in the West Pacific until 2019.


  • Nemo 1W
  • Orion 2W
  • Petor 3W
  • Quirin 4W
  • Rolf 5W
  • Sigurd 6W
  • Tronje 7W
  • Uranus 8W
  • Valerian 9W
  • Wilbur 10W
  • Xaver 11W
  • Yoda 12W
  • Zeus 13W
  • Alfredo 14W
  • Bobby 15W
  • Coppelius 16W
  • Duncan 17W
  • Erik 18W
  • Friedhelm 19W
  • Gerald 20W
  • Hunter 21W
  • Inago 22W
  • James 24W
  • Kurt 23W
  • Leon 25W
  • Miekel 26W
  • Norfried 27W
  • Olaf 28W
  • Paolini 29W
  • Quinn 30W
  • Roman 31W
  • Sukru 32W
  • Timmie 33W
  • Ulli 34W
  • Viktor 35W
  • Wolfgang 36W

Philippines[]

PAGASA uses its own naming scheme for tropical cyclones within its area of responsibility. This is the same list as the Los Angeles Police Department phonetic alphabet. All names were used for the first time this season, as this was the first season where PAGASA identified storms.

  • Adam 02W
  • Boy 03W
  • Charles 04W
  • David 05W
  • Edward 07W
  • Frank 08W
  • George 11W
  • Henry 13W
  • Ida 16W
  • John 19W
  • King 21W
  • Lincoln 24W
  • Mary 26W
  • Nora 27W
  • Ocean 29W
  • Paul 30W
  • Queen 31W
  • Robert 33W
  • Sam 35W

See also[]

External links[]

NOTE: All links relate to Planet Earth weather warning centers.

2010-19 Planet X Pacific typhoon seasons
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