1971 Pacific typhoon season
1971 Pacific typhoon season
| First storm formed |
January 9, 1971 |
| Last storm dissipated |
November 16, 1971 |
| Strongest storm |
Irma – 884 hPa (mbar), 285 km/h (180 mph) (1-minute sustained) |
| Tropical depressions |
37 |
| Total storms |
35 |
| Typhoons |
24 |
| Super typhoons |
6 |
| Total fatalities |
Unknown |
| Total damage |
Unknown |
Pacific typhoon seasons
1969, 1970, 1971, 1972, 1973 |
The 1971 Pacific typhoon season has no official bounds; it ran year-round in 1971, but most tropical cyclones tend to form in the northwestern Pacific Ocean between June and December. These dates conventionally delimit the period of each year when most tropical cyclones form in the northwestern Pacific Ocean.
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; see 1971 Pacific hurricane season. Tropical Storms formed in the entire west pacific basin were assigned a name by the Joint Typhoon Warning Center. Tropical depressions in this basin have the "W" suffix added to their number. Tropical depressions that enter or form in the Philippine area of responsibility are assigned a name by the Philippine Atmospheric, Geophysical and Astronomical Services Administration or PAGASA. This can often result in the same storm having two names.
Storms
38 tropical depressions formed this year in the Western Pacific, of which 35 became tropical storms. 24 storms reached typhoon intensity, of which 6 reached super typhoon strength. The season had an extremely active start, with 11 storms forming before July 1 and 19 storms before August 1. According to the JMA, three named storms formed in April and eight in July. Those totals are records for any season. Also, four named storms formed in May, a record tied with the 1980 season.[1]
Tropical Storm Sarah (Auring)
| Tropical storm (SSHS) |
|
|
| Duration |
January 9 – January 11 |
| Intensity |
95 km/h (60 mph) (1-min), 989 mbar (hPa) |
Tropical Storm Thelma (Bebeng)
| Tropical storm (SSHS) |
|
|
| Duration |
March 18 – March 19 |
| Intensity |
85 km/h (50 mph) (1-min), 992 mbar (hPa) |
Typhoon Vera (Karing)
| Category 2 typhoon (SSHS) |
|
|
| Duration |
April 8 – April 18 |
| Intensity |
165 km/h (105 mph) (1-min), 960 mbar (hPa) |
Typhoon Wanda (Diding)
| Category 1 typhoon (SSHS) |
|
|
| Duration |
April 23 – May 4 |
| Intensity |
140 km/h (85 mph) (1-min), 980 mbar (hPa) |
On April 23 Tropical Storm Wanda began its life to the east of the Philippines. It tracked over the archipelago, and emerged into the South China Sea on the 25th. It turned to the northwest, and became a typhoon on May 1 just off the coast of Vietnam. The westerlies brought Wanda to the north and northeast, where it weakened until dissipating on the 4th near Hainan Island. The storm caused 56 deaths (with 39 missing) and $700,000 in damage (1971 USD) from the heavy flooding.
Super Typhoon Amy (Etang)
| Category 5 super typhoon (SSHS) |
|
|
| Duration |
April 29 – May 7 |
| Intensity |
280 km/h (175 mph) (1-min), 895 mbar (hPa) |
Tropical Storm Babe
| Tropical storm (SSHS) |
|
|
| Duration |
May 3 – May 7 |
| Intensity |
100 km/h (65 mph) (1-min), 987 mbar (hPa) |
Tropical Storm Carla (Gening)
| Tropical storm (SSHS) |
|
|
| Duration |
May 19 – May 22 |
| Intensity |
95 km/h (60 mph) (1-min), 989 mbar (hPa) |
Typhoon Dinah (Herming)
| Category 2 typhoon (SSHS) |
|
|
| Duration |
May 25 – May 30 |
| Intensity |
165 km/h (105 mph) (1-min), 956 mbar (hPa) |
Tropical Storm Emma (Ising)
| Tropical storm (SSHS) |
|
|
| Duration |
May 28 – May 29 |
| Intensity |
65 km/h (40 mph) (1-min), 1000 mbar (hPa) |
Typhoon Freda (Luding)
| Category 1 typhoon (SSHS) |
|
|
| Duration |
June 14 – June 18 |
| Intensity |
120 km/h (75 mph) (1-min), 978 mbar (hPa) |
Typhoon Gilda (Mameng)
| Category 2 typhoon (SSHS) |
|
|
| Duration |
June 24 – June 28 |
| Intensity |
165 km/h (105 mph) (1-min), 975 mbar (hPa) |
Typhoon Harriet (Neneng)
| Category 4 typhoon (SSHS) |
|
|
| Duration |
July 2 – July 7 |
| Intensity |
230 km/h (145 mph) (1-min), 921 mbar (hPa) |
Tropical Storm Ivy
| Tropical storm (SSHS) |
|
|
| Duration |
July 5 – July 7 |
| Intensity |
110 km/h (70 mph) (1-min), 978 mbar (hPa) |
Tropical Storm Kim (Oniang)
| Tropical storm (SSHS) |
|
|
| Duration |
July 9 – July 13 |
| Intensity |
95 km/h (60 mph) (1-min), 984 mbar (hPa) |
Typhoon Jean (Pepang)
| Category 2 typhoon (SSHS) |
|
|
| Duration |
July 9 – July 18 |
| Intensity |
155 km/h (100 mph) (1-min), 968 mbar (hPa) |
Super Typhoon Lucy (Rosing)
| Category 4 super typhoon (SSHS) |
|
|
| Duration |
July 16 – July 22 |
| Intensity |
240 km/h (150 mph) (1-min), 915 mbar (hPa) |
The strongest typhoon to strike the Philippines that year, this cyclone moved towards the region from the Marianas as a slow pace. Gusty southwest winds impacted western portions of Visayas and Luzon, including Manila, as the cyclone passed by on the 21st. The highest winds recorded were 190 kilometres per hour (100 kn) at Basco in Batanes. Heavy rains caused by the strong onshore flow led to heavy rains, which peaked at 379.5 millimetres (14.94 in) at Baguio City within 24 hours. The heavy rains led to severe flooding and landslides in north-central sections of the Philippines.[2]
Typhoon Mary
| Category 1 typhoon (SSHS) |
|
|
| Duration |
July 17 – July 20 |
| Intensity |
150 km/h (90 mph) (1-min), 973 mbar (hPa) |
Super Typhoon Nadine (Sisang)
| Category 5 super typhoon (SSHS) |
|
|
| Duration |
July 20 – July 26 |
| Intensity |
280 km/h (175 mph) (1-min), 898 mbar (hPa) |
Typhoon Nadine, which formed on July 20, quickly strengthened to a peak of 175 mph (282 km/h) on the 24th. It weakened slightly as it continued its northwest movement, and struck eastern Taiwan on the 25th with winds of over 100 mph (200 km/h). Nadine dissipated the next day over China, after causing 28 deaths (with 25 missing) and heavy damage on Taiwan from the flooding. Nadine also caused the crash of a Pan American cargo aircraft, killing all four people in the crew.
Typhoon Olive
| Category 2 typhoon (SSHS) |
|
|
| Duration |
July 29 – August 5 |
| Intensity |
155 km/h (100 mph) (1-min), 935 mbar (hPa) |
85 mph (137 km/h) Typhoon Olive, which developed on July 29 from the near equatorial trough, hit southwestern Japan on August 4. It continued northward, and became extratropical in the Sea of Japan. Olive's heavy rains resulted in numerous mudslides, killing 69 people.
Tropical Storm Polly (Trining)
| Tropical storm (SSHS) |
|
|
| Duration |
August 4 – August 10 |
| Intensity |
75 km/h (45 mph) (1-min), 985 mbar (hPa) |
Typhoon Rose (Uring)
| Category 4 typhoon (SSHS) |
|
|
| Duration |
August 10 – August 17 |
| Intensity |
220 km/h (140 mph) (1-min), 950 mbar (hPa) |
A small circulation near Chuuk organized into Tropical Storm Rose on August 10. An extremely small cyclone with a wind field of 150 nautical miles (280 km) across, Rose quickly strengthened, and became a typhoon later that day. It briefly weakened to a tropical storm on the 11th, but restrengthened to a typhoon as it continued westward. On August 13, Typhoon Rose made landfall on northeastern Luzon with winds of 130 mph (210 km/h). It weakened to a minimal typhoon over the mountainous terrain, but in the South China Sea, Rose rapidly intensified, and peaked at 140 mph (230 km/h) winds on the 16th. As it approached the coast of Hong Kong, the inflow became disrupted, but Rose still hit as a 100 mph (200 km/h) typhoon on the 16th. The typhoon dissipated the next day, after causing 130 deaths in Hong Kong and leaving 5,600 people homeless. A Macao ferry was capsized, resulting in the loss of its 88 person crew.
Typhoon Shirley
| Category 2 typhoon (SSHS) |
|
|
| Duration |
August 12 – August 17 |
| Intensity |
165 km/h (105 mph) (1-min), 955 mbar (hPa) |
Typhoon Trix
| Category 3 typhoon (SSHS) |
|
|
| Duration |
August 20 – August 31 |
| Intensity |
185 km/h (115 mph) (1-min), 915 mbar (hPa) |
An upper level low contributed to the birth of Tropical Storm Trix on August 20. After drifting northward, the storm turned to the west in response to the building of the subtropical ridge. Trix slowly strengthened after becoming a typhoon on the 21st, and reached a peak of 115 mph (185 km/h) winds on the 28th. Trix recurved, and struck southwestern Japan on the 29th as a 95 mph (153 km/h) typhoon. It accelerated to the northeast, and became extratropical on the 30th. Just weeks after Typhoon Olive, Trix dropped more heavy rain to the country, in one case as much as 43 inches (1,100 mm) of rain. Trix caused 44 deaths, with heavy crop damage amounting to $50.6 million.
Tropical Depression 25W
| Tropical depression (SSHS) |
|
|
| Duration |
August 24 – August 25 |
| Intensity |
55 km/h (35 mph) (1-min), 996 mbar (hPa) |
Typhoon Virginia
| Category 3 typhoon (SSHS) |
|
|
| Duration |
September 2 – September 7 |
| Intensity |
185 km/h (115 mph) (1-min), 955 mbar (hPa) |
Within one month of Typhoons Trix and Olive, Typhoon Virginia came up the Japanese coast with winds of 80 mph (130 km/h). It became extratropical on September 7 just east of Japan, after dropping more heavy rain causing 56 casualties from numerous landslides.
Super Typhoon Wendy
| Category 5 super typhoon (SSHS) |
|
|
| Duration |
September 4 – September 12 |
| Intensity |
260 km/h (160 mph) (1-min), 915 mbar (hPa) |
Tropical Depression 28W
| Tropical depression (SSHS) |
|
|
| Duration |
September 13 – September 14 |
| Intensity |
45 km/h (30 mph) (1-min), 998 mbar (hPa) |
Typhoon Agnes (Warling)
| Category 1 typhoon (SSHS) |
|
|
| Duration |
September 15 – September 19 |
| Intensity |
140 km/h (85 mph) (1-min), 975 mbar (hPa) |
Super Typhoon Bess (Yayang)
| Category 5 super typhoon (SSHS) |
|
|
| Duration |
September 17 – September 23 |
| Intensity |
260 km/h (160 mph) (1-min), 911 mbar (hPa) |
Super Typhoon Bess, having peaked at 160 mph (260 km/h) on July 5, tracked west-northwestward. The typhoon weakened as it continued its movement, and struck eastern Taiwan on the 9th as a 130 mph (210 km/h) typhoon. It rapidly weakened over the country, and dissipated on the 10th over China. The typhoon caused heavy flooding, resulting in 32 deaths and moderate crop damage.
Tropical Storm Carmen
| Tropical storm (SSHS) |
|
|
| Duration |
September 24 – September 26 |
| Intensity |
95 km/h (60 mph) (1-min), 1000 mbar (hPa) |
Typhoon Della (Ading)
| Category 1 typhoon (SSHS) |
|
|
| Duration |
September 27 – September 30 |
| Intensity |
130 km/h (80 mph) (1-min), 981 mbar (hPa) |
Typhoon Elaine (Barang)
| Category 3 typhoon (SSHS) |
|
|
| Duration |
October 3 – October 9 |
| Intensity |
185 km/h (115 mph) (1-min), 963 mbar (hPa) |
Typhoon Faye (Dadang)
| Category 1 typhoon (SSHS) |
|
|
| Duration |
October 4 – October 13 |
| Intensity |
120 km/h (75 mph) (1-min), 984 mbar (hPa) |
A tropical disturbance east of the Marianas Islands developed into Tropical Storm Faye on October 4. After peaking at 75 mph (121 km/h) on the 5th, Faye became very disorganized, and weakened to a tropical depression on the 7th. At this time, there were several circulations, so it is possible that Faye was absorbed by another disturbance to its south. Regardless, the storm re-organized as it approached the Philippines. Faye crossed the islands on the 10th as a minimal tropical storm, and again became a typhoon in the South China Sea on the 11th. Steering currents became weak, and a northwest flow forced Faye southeastward back into the Philippines. Faye crossed the islands on the 12th, and dissipated on the 13th, after causing torrential rainfall killing 13 people with 80 missing. The death toll is combined with another Tropical Storm, Gloria, that hit the area days before Faye.
Tropical Storm Gloria (Krising)
| Tropical storm (SSHS) |
|
|
| Duration |
October 9 – October 10 |
| Intensity |
85 km/h (50 mph) (1-min), 987 mbar (hPa) |
Typhoon Hester (Goying)
| Category 2 typhoon (SSHS) |
|
|
| Duration |
October 19 – October 23 |
| Intensity |
165 km/h (105 mph) (1-min), 967 mbar (hPa) |
On October 19 and 20, Tropical Storm Hester developed and crossed the Southern Philippines. Upon moving northwestward through the South China Sea, Hester strengthened, reaching a peak of 100 mph (200 km/h) winds just before striking central Vietnam on the 23rd. Due to the Vietnam War going on at the time, Hester caused heavy damage to both Vietnamese and Americans, killing 3 Americans and 85 Vietnamese.
Tropical Depression Hobing
| Tropical depression (SSHS) |
|
|
| Duration |
November 4 – November 5 |
| Intensity |
55 km/h (35 mph) (1-min), Unknown |
Super Typhoon Irma (Ining)
| Category 5 super typhoon (SSHS) |
|
|
| Duration |
November 8 – November 15 |
| Intensity |
285 km/h (180 mph) (1-min), 884 mbar (hPa) |
The final and strongest typhoon of the season, Irma, reached a peak intensity of 180 mph (290 km/h) on November 11. It remained at sea, affecting only shipping and causing minor damage to the islands of the West Pacific. At the time, the typhoon held the record for the fastest intensification in a 24 hour period, deepening from 981 mbar to 884 mbar.[3]
Tropical Storm Judy
| Tropical storm (SSHS) |
|
|
| Duration |
November 15 – November 16 |
| Intensity |
85 km/h (50 mph) (1-min), 1004 mbar (hPa) |
1971 storm names
Western North Pacific tropical cyclones were named by the Joint Typhoon Warning Center. The first storm of 1971 was named Sarah and the final one was named Judy.
- Agnes 29W
- Bess 30W
- Carmen 31W
- Della 32W
- Elaine 33W
- Faye 34W
- Gloria 35W
- Hester 36W
- Irma 37W
- Judy 38W
-
Kit
-
Lola
-
Mamie
-
Nina
-
Ora
-
Phyllis
-
Rita
-
Susan
-
Tess
-
Viola
-
Winnie
|
-
Alice
-
Betty
-
Cora
-
Doris
-
Elsie
-
Flossie
-
Grace
-
Helen
-
Ida
-
June
-
Kathy
-
Lorna
-
Marie
-
Nancy
-
Olga
-
Pamela
-
Ruby
-
Sally
-
Therese
-
Violet
-
Wilda
|
-
Anita
-
Billie
-
Clara
-
Dot
-
Ellen
-
Fran
-
Georgia
-
Hope
-
Iris
-
Joan
-
Kate
-
Louise
-
Marge
-
Nora
-
Opal
-
Patsy
-
Ruth
- Sarah 1W
- Thelma 2W
- Vera 3W
- Wanda 4W
|
- Amy 5W
- Babe 6W
- Carla 7W
- Dinah 8W
- Emma 9W
- Freda 10W
- Gilda 11W
- Harriet 12W
- Ivy 13W
- Jean 14W
- Kim 15W
- Lucy 16W
- Mary 17W
- Nadine 18W
- Olive 19W
- Polly 20W
- Rose 21W
- Shirley 22W
- Trix 23W
- Virginia 26W
- Wendy 27W
|
Philippines
The Philippine Atmospheric, Geophysical and Astronomical Services Administration (PAGASA) uses its own naming scheme for tropical cyclones within its area of responsibility. Lists are recycled every four years. Since the list of names was exhausted this year, two names from the auxiliary list were used.
- Auring
- Bebeng
- Karing
- Diding
- Etang
- Gening
|
- Herming
- Ising
- Ludy
- Mameng
- Neneng
- Oniang
|
- Pepang
- Rosing
- Sisang
- Trining
- Uring
|
- Warling
- Yayang
- Ading
- Barang
- Krising
|
- Dadang
- Erling
- Goying
- Hobing
- Ining
|
See also
References
External links