Global atmospheric and hydrological conditions
For the majority of the year, the tropics were dominated by neutral El Niño–Southern Oscillation (ENSO) conditions, before La Niña conditions set in later in the year.[1] As the year opened, sea surface temperatures anomalies across the central and east-central equatorial Pacific were cooler than average, while the impacts of La Niña lingered within the atmospheric circulation, following an abrupt end to the 2016 La Niña episode. Over the next few months, these anomalies warmed and nearly reached the thresholds needed for an El Niño event to be declared, however, they subsequently cooled throughout the rest of the year and the 2017-18 La Niña event was declared to be underway.
Systems
January
Tropical cyclones formed in January 2017
Storm Name |
Dates Active |
Max wind km/h (mph) |
Min pressure (mbar) |
Areas Affected |
Damage (USD) |
Deaths |
Refs |
06F |
January 2–6 |
Not Available |
1002 |
None |
None |
None |
|
08U |
January 3–7 |
Not Available |
994 |
Northern Territory, Western Australia |
None |
None |
|
09U |
January 3–15 |
Not Available |
1003 |
Cocos (Keeling) Islands, Christmas Island |
None |
None |
|
10U |
January 7–12 |
Not Available |
1001 |
Northern Territory |
None |
None |
|
11U |
January 7–8 |
Not Available |
1000 |
Queensland |
None |
None |
|
01W |
January 7–16 |
55 (35) |
1002 |
Philippines, Vietnam, Cambodia |
$140 thousand |
11 |
[2][3] |
07F |
January 10–20 |
Not Available |
998 |
None |
None |
None |
|
08F |
January 10–11 |
Not Available |
1009 |
None |
None |
None |
|
12U |
January 18–19 |
Not Available |
Not Available |
None |
None |
None |
|
13U |
January 21–25 |
Not Available |
1009 |
None |
None |
None |
|
14U |
January 23–31 |
85 (50) |
988 |
Northern Territory, Western Australia |
None |
None |
|
03 |
January 27–28 |
55 (35) |
1005 |
None |
None |
None |
|
February
Tropical cyclones formed in February 2017
Storm Name |
Dates Active |
Max wind km/h (mph) |
Min pressure (mbar) |
Areas Affected |
Damage (USD) |
Deaths |
Refs |
Carlos |
February 2–10 |
130 (80) |
965 |
None |
None |
None |
|
Bising |
February 3–7 |
55 (35) |
1000 |
None |
None |
None |
|
09F |
February 5–11 |
Not Available |
999 |
Fiji |
None |
None |
|
10F |
February 7–11 |
Not Available |
993 |
Fiji, Vanuatu |
None |
None |
|
15U |
February 7–11 |
Not Available |
984 |
Western Australia |
Unknown |
2 |
|
16U |
February 9–10 |
Not Available |
Not Available |
New Caledonia |
None |
None |
|
11F |
February 9–12 |
Not Available |
1002 |
Vanuatu, Fiji |
None |
None |
|
17U |
February 11–12 |
Not Available |
1004 |
Northern Territory |
None |
None |
|
Dineo |
February 13–17 |
140 (85) |
955 |
Mozambique, South Africa, Zimbabwe, Botswana, Malawi |
$217 million |
280 |
[4][5][6] |
12F |
February 15–24 |
Not Available |
1002 |
Fiji |
None |
None |
|
13F |
February 15–18 |
Not Available |
998 |
None |
None |
None |
|
14F |
February 16–22 |
55 (35) |
997 |
Fiji |
None |
None |
|
18U |
February 16–22 |
Not Available |
Not Available |
None |
None |
None |
|
Alfred |
February 16–22 |
85 (50) |
994 |
Northern Territory, Queensland |
Unknown |
Unknown |
|
Bart |
February 19–22 |
75 (45) |
994 |
Southern Cook Islands |
None |
None |
|
16F |
February 23–26 |
Not Available |
1005 |
None |
None |
None |
|
March
Tropical cyclones formed in March 2017
Storm Name |
Dates Active |
Max wind km/h (mph) |
Min pressure (mbar) |
Areas Affected |
Damage (USD) |
Deaths |
Refs |
Blanche |
March 2–7 |
100 (65) |
984 |
Northern Territory, Western Australia |
None |
None |
|
Enawo |
March 2–7 |
205 (125) |
932 |
Madagascar, Réunion |
$20 million |
99 |
[7][8][6] |
17F |
March 4–5 |
Not Available |
1006 |
None |
None |
None |
|
Fernando |
March 6–14 |
70 (45) |
992 |
Rodriques |
None |
None |
|
21U |
March 14–18 |
Not Available |
Not Available |
None |
None |
None |
|
TD |
March 19–21 |
Not Available |
1008 |
Philippines |
None |
None |
|
18F |
March 19–21 |
Not Available |
1007 |
None |
None |
None |
|
22U |
March 20–24 |
95 (60) |
985 |
Western Australia |
None |
None |
|
Caleb |
March 23–27 |
85 (50) |
989 |
Cocos (Keeling) Islands |
None |
None |
|
Debbie |
March 23–30 |
175 (110) |
949 |
Queensland, New South Wales, New Zealand |
$2.67 billion |
14 |
[9][10] |
25U |
March 23–26 |
Not Available |
Not Available |
None |
None |
None |
|
April
Tropical cyclones formed in April 2017
Storm Name |
Dates Active |
Max wind km/h (mph) |
Min pressure (mbar) |
Areas Affected |
Damage (USD) |
Deaths |
Refs |
19F |
April 1–20 |
Not Available |
988 |
Samoa, Niue |
None |
None |
|
Ernie |
April 5–10 |
220 (140) |
922 |
None |
None |
None |
|
27U |
April 6–16 |
55 (35) |
998 |
Northern Territory, Western Australia |
None |
None |
|
Cook |
April 6–10 |
155 (100) |
961 |
Vanuatu, New Caledonia, New Zealand |
Moderate |
1 |
[11] |
02W |
April 13–20 |
55 (35) |
1006 |
Philippines, Taiwan |
$1.7 million |
10 |
[12][13] |
Maarutha |
April 15–17 |
75 (45)3 |
996 |
Myanmar, Andaman and Nicobar Islands, Thailand, Yunnan |
$23.4 thousand |
4 |
[14][15][16] |
Arlene |
April 19–21 |
85 (50)4 |
990 |
None |
None |
None |
|
Frances |
April 21–May 1 |
120 (75) |
980 |
New Guinea, Maluku, Northern Territory, Timor, Western Australia |
None |
None |
|
Muifa |
April 22–29 |
65 (40) |
1002 |
None |
None |
None |
|
Greg |
April 29–May 3 |
65 (40) |
997 |
None |
None |
None |
|
May
Tropical cyclones formed in May 2017
Storm Name |
Dates Active |
Max wind km/h (mph) |
Min pressure (mbar) |
Areas Affected |
Damage (USD) |
Deaths |
Refs |
Donna |
May 1–10 |
205 (125) |
935 |
Solomon Islands, Vanuatu, Fiji, New Caledonia, New Zealand |
Significant |
2 |
[17] |
Ella |
May 7–14 |
110 (75) |
977 |
Samoan Islands, Tonga, Wallis and Futuna |
None |
None |
|
Adrian |
May 9–10 |
75 (45)4 |
1004 |
None |
None |
None |
|
Mora |
May 28–31 |
110 (70)3 |
978 |
Sri Lanka, Andaman and Nicobar Islands, East India, Northeast India, Bangladesh, Myanmar, Bhutan, Tibet |
$1.36 billion |
135 |
[18][19][20][21] |
Beatriz |
May 31–June 2 |
75 (45)4 |
1001 |
Southwestern Mexico |
$3.7 million |
7 |
|
June
Tropical cyclones formed in June 2017
Storm Name |
Dates Active |
Max wind km/h (mph) |
Min pressure (mbar) |
Areas Affected |
Damage (USD) |
Deaths |
Refs |
Merbok |
June 10–13 |
100 (65) |
985 |
Philippines, South China |
$90.8 million |
None |
|
Calvin |
June 11–13 |
75 (45)4 |
1004 |
Southwestern Mexico, Guatemala |
Unknown |
None |
|
BOB 03 |
June 11–13 |
55 (35)3 |
988 |
Northeast India, Bangladesh |
$223 million |
170 |
[22] |
Bret |
June 19–20 |
85 (50)4 |
1007 |
Guyana, Venezuela, Trinidad and Tobago, Windward Islands |
≥$3 million |
2 |
|
Cindy |
June 20–23 |
95 (60)4 |
991 |
Honduras, Belize, Cayman Islands, Yucatán Peninsula, Cuba, Southern United States, Eastern United States |
$25 million |
2 |
[23] |
Dora |
June 25–28 |
165 (105)4 |
974 |
Southwestern Mexico |
Minimum |
None |
|
TD |
June 29–July 1 |
Not specified |
1008 |
Japan |
None |
None |
|
July
Tropical cyclones formed in July 2017
Storm Name |
Dates Active |
Max wind km/h (mph) |
Min pressure (mbar) |
Areas Affected |
Damage (USD) |
Deaths |
Refs |
Nanmadol |
July 1–4 |
100 (65) |
985 |
Japan |
$1.99 billion |
41 |
[24][25][26][27] |
TD |
July 4–7 |
55 (35) |
1010 |
Taiwan, Ryukyu Islands |
None |
None |
|
Four |
July 5–7 |
45 (30)4 |
1009 |
None |
None |
None |
|
Eugene |
July 7–12 |
185 (115)4 |
966 |
Baja California Peninsula, California |
None |
None |
|
Fernanda |
July 12–22 |
230 (145)4 |
948 |
Hawaii |
None |
None |
|
TD |
July 13–16 |
55 (35) |
1006 |
None |
None |
None |
|
Talas |
July 14–17 |
95 (60) |
985 |
Hainan, Indochina |
$80.1 million |
14 |
[28][29] |
Don |
July 17–18 |
85 (50)4 |
1005 |
Windward Islands, Barbados, Trinidad and Tobago |
None |
None |
|
Eight-E |
July 17–20 |
55 (35)4 |
1007 |
None |
None |
None |
|
Greg |
July 17–26 |
95 (60)4 |
1000 |
None |
None |
None |
|
BOB 04 |
July 18–19 |
45 (30)3 |
992 |
Orissa, Madhya Pradesh, Chhattisgarh |
$34.3 million |
7 |
[30] |
Noru |
June 19–August 8 |
175 (110) |
935 |
Japan |
$100 million |
2 |
[31][32] |
Kulap |
July 20–28 |
75 (45) |
1002 |
None |
None |
None |
|
Hilary |
July 21–30 |
175 (110)4 |
969 |
Southwestern Mexico |
None |
None |
|
Sonca |
July 21–29 |
65 (40) |
994 |
Hainan, Indochina |
$306 million |
37 |
[33][34][35] |
Roke |
July 21–23 |
65 (40) |
1002 |
Philippines, Taiwan, South China |
None |
None |
|
Irwin |
July 22–August 1 |
150 (90)4 |
970 |
None |
None |
None |
|
Nesat |
July 25–30 |
150 (90) |
960 |
Philippines, Ryukyu Islands, Taiwan, East China |
$281 million |
3 |
[36] |
TD |
July 25–29 |
55 (35) |
1006 |
None |
None |
None |
|
LAND 01 |
July 26–27 |
45 (30)3 |
992 |
West Bengal, Jharkhand, Madhya Pradesh |
$2.19 billion |
152 |
[37][38] |
Haitang |
July 27–August 2 |
85 (50) |
985 |
Taiwan, East China |
$3.77 million |
None |
|
Emily |
July 30–August 1 |
95 (60)4 |
1001 |
Florida |
$10 million |
None |
[39] |
Nalgae |
July 31–August 5 |
85 (50) |
990 |
None |
None |
None |
|
August
Tropical cyclones formed in August 2017
Storm Name |
Dates Active |
Max wind km/h (mph) |
Min pressure (mbar) |
Areas Affected |
Damage (USD) |
Deaths |
Refs |
September
Tropical cyclones formed in September 2017
Storm Name |
Dates Active |
Max wind km/h (mph) |
Min pressure (mbar) |
Areas Affected |
Damage (USD) |
Deaths |
Refs |
October
Tropical cyclones formed in October 2017
Storm Name |
Dates Active |
Max wind km/h (mph) |
Min pressure (mbar) |
Areas Affected |
Damage (USD) |
Deaths |
Refs |
November
Tropical cyclones formed in November 2017
Storm Name |
Dates Active |
Max wind km/h (mph) |
Min pressure (mbar) |
Areas Affected |
Damage (USD) |
Deaths |
Refs |
December
Tropical cyclones formed in December 2017
Storm Name |
Dates Active |
Max wind km/h (mph) |
Min pressure (mbar) |
Areas Affected |
Damage (USD) |
Deaths |
Refs |
Global effects
Season name |
Areas affected |
Systems formed |
Damage (USD) |
Deaths |
2017 Atlantic hurricane season |
|
18 |
≥$282.16 billion |
3361 |
2017 Pacific hurricane season |
Mexico, Guatemala, Baja California Peninsula, California, Arizona, Nicaragua, Costa Rica, El Salvador, Honduras |
20 |
$16.7 million |
46 |
2017 Pacific typhoon season1 |
|
41 |
$15.7 billion |
864 |
2017 North Indian Ocean cyclone season |
|
10 |
>$8.88 billion |
761 |
2016–17 South-West Indian Ocean cyclone season1 |
Réunion, Mauritius, Mozambique, South Africa, Zimbabwe, Botswana, Malawi, Madagascar, Rodrigues |
4 |
$236.5 million |
379 |
2017–18 South-West Indian Ocean cyclone season2 |
Madagascar |
1 |
$3.1 million |
73 |
2016–17 Australian region cyclone season1 |
Northern Territory, Western Australia, Cocos Islands, Christmas Island, Queensland, New Caledonia, New South Wales, New Zealand, New Guinea, Maluku, Timor |
22 |
$2.67 billion |
14 |
2017–18 Australian region cyclone season2 |
Java, Sumatra, Indonesia, Western Australia |
6 |
Unknown |
41 |
2016–17 South Pacific cyclone season1 |
Solomon Islands, Vanuatu, Fiji, New Caledonia, New Zealand, Southern Cook Islands, Tonga, Samoa, American Samoa, Wallis and Futuna |
16 |
Significant |
3 |
2017–18 South Pacific cyclone season2 |
Fiji |
4 |
None reported |
None reported |
Worldwide |
(See above) |
142 |
> $309.665 billion |
5546 |
Notes
1 Only systems that formed either on or after January 1, 2017 are counted in the seasonal totals.
2 Only systems that formed either before or on December 31, 2017 are counted in the seasonal totals.
3 The wind speeds for this tropical cyclone are based on the IMD Scale which uses 3-minute sustained winds.
4 The wind speeds for this tropical cyclone are based on the Saffir Simpson Scale which uses 1-minute sustained winds.
References
- ↑ "State of the Climate in 2017" (PDF). Bulletin of the American Meteorological Society. 99 (8): S101–S142. 2018. doi:10.1175/2018BAMSStateoftheClimate.1.
- ↑ "Global Catastrophe Recap January 2017" (PDF). thoughtleadership.aonbenfield.com. Aon Benfield. Retrieved February 8, 2017.
- ↑ "'Auring' damage to agro-fishery in Negros Occidental reaches P7.14M". Sunstar. January 21, 2017.
- ↑ "Storm Dineo kills at least seven people in Mozambique - govt". Times Live. Reuters. February 16, 2017. Retrieved February 16, 2017.
- ↑ "Flash Appeal: Emergency Response Plan for Mozambique - Cyclone Dineo" (PDF). ReliefWeb. UN Country Team in Mozambique. February 28, 2017. Retrieved March 1, 2017.
- 1 2 "Global Catastrophe Recap March 2017" (PDF). Aon Benfield. Retrieved 8 April 2017.
- ↑ "Madagascar: Cyclone Enawo Situation Report No. 3 (17 March 2017)". Relief Web. UN Office for the Coordination of Humanitarian Affairs. Retrieved 18 March 2017.
- ↑ "Madagascar cyclone death toll rises to 78". Channel NewsAsia. Agence France-Presse. March 15, 2017. Retrieved March 15, 2017.
- ↑ Tropical Cyclone Debbie Technical Report (PDF). Bureau of Meteorology (Report). March 2018. Retrieved 25 April 2018.
- ↑ Podlaha, Adam; Bowen, Steve; Darbinyan, Claire; Lörinc, Michal. "Global Catastrophe Recap - April 2017" (PDF). Aon Benfield Analytics. Retrieved 20 June 2017.
- ↑ "Cyclone "Cook" hits New Caledonia, leaving 1 dead, 20 000 without power". The Watchers. April 10, 2017.
- ↑ "'Crising' death toll in Cebu rises to 10". Philstar. April 17, 2017.
- ↑ "Capitol pegs Crising damage at P84.8M". Inquirer. April 25, 2017.
- ↑ "Maarutha makes landfall, weakens". The Global New Light of Myanmar. April 18, 2017.
- ↑ "Three Die in Cyclone Maarutha". Reliefweb. April 18, 2017.
- ↑ "4 killed as Cyclone Maarutha hits Irrawaddy Delta". May 31, 2017. Retrieved June 1, 2017.
- ↑ "Damages reported in Temotu". Solomon Star. May 15, 2017. Archived from the original on May 16, 2017.
- ↑ "Cyclone Mora kills 9 in 4 districts". Dhaka Tribune. May 30, 2017.
- ↑ "Cyclone Mora Wreaks Devastation Along Myanmar's West Coast, Killing One". Radio Free Asia. May 31, 2017. Retrieved June 14, 2017.
- ↑ "Sri Lanka: UN agency deploys rapid assessment teams to assist in wake of monsoon floods, landslides". May 30, 2017.
- ↑ "EU announces €1.5 million in assistance to victims of Cyclone Mora in Bangladesh, Myanmar". May 31, 2017. Retrieved June 1, 2017.
- ↑ "Death toll up to 146 in Bangladesh landslides". Business Day. Agence France-Presse. June 14, 2017. Retrieved June 14, 2017.
- ↑ John P. Cangialosi (June 13, 2017). Tropical Weather Outlook (TXT) (Report). National Hurricane Center. Retrieved June 19, 2017.
- ↑ "5 still missing, 530 displaced one month after Kyushu's deadly rain". The Borneo Post. August 5, 2017.
- ↑ "One dead, 20,000 evacuated as tropical storm Nanmadol batters western Japan". Japan: Sun Daily. July 5, 2017.
- ↑ "Death toll from Kyushu rains hits 22 as searches, evacuations continue". Japan: The Mainichi. July 9, 2017. Retrieved July 10, 2017.
- ↑ "In Kyushu floods, destruction was magnified by fast-flowing driftwood". The Japan Times. July 12, 2017.
- ↑ "gulftoday.ae – Tropical Storm Talas hits Vietnam, leaves one dead". gulftoday.ae.
- ↑ VnExpress. "9 dead or missing in Vietnam as infrastructure is damaged – VnExpress International".
- ↑ "In Pics: Flood Situation in Odisha worsens, four dead". hindustantimes.com/. 2017-07-19. Retrieved 2017-07-19.
- ↑ "Two killed as typhoon slams southern Japan". NewsComAu. Retrieved 2017-08-06.
- ↑ Martins, Daniel (August 7, 2017). "Deaths reported as weakening Noru slams Japan". The Weather Network. Retrieved 2017-09-12.
- ↑ "Sonca storm leaves ruinous signature". 28 July 2017. Retrieved 23 August 2017.
- ↑ Limited, Bangkok Post Public Company. "Worst floods in 2 decades hit Sakon Nakhon (Updated)". Retrieved 23 August 2017.
- ↑ "Thailand floods kill 23, cause damage estimated at $300 million". 3 August 2017 – via Reuters.
- ↑ "Agricultural losses from Typhoon Nesat exceed NT$60 million – Focus Taiwan".
- ↑ "16 dead, 20 lakh affected in West Bengal floods". July 28, 2017. Retrieved July 28, 2017.
- ↑ "Eight killed as heavy rains lash Jharkhand". hindusthantimes. July 28, 2017. Retrieved July 28, 2017.
- ↑ Richard J. Pasch; Andrew S. Latto; John P. Cangialosi (April 2, 2018). Tropical Storm Emily (PDF) (Report). Tropical Cyclone Report. National Hurricane Center. Retrieved April 8, 2018.