1973 Pacific typhoon season

1973 Pacific typhoon season

Season summary map
First system formed	June 30, 1973 (record latest)
Last system dissipated	November 27, 1973
Strongest storm1	Nora – 875 hPa (mbar), 295 km/h (185 mph) (1-minute sustained)
Total depressions	25
Total storms	21
Typhoons	12
Super typhoons	3
Total fatalities	Unknown
Total damage	Unknown
1Strongest storm is determined by lowest pressure
Pacific typhoon seasons 1971, 1972, 1973, 1974, 1975

The 1973 Pacific typhoon season has no official bounds, 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 1973 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

25 tropical depressions formed this year in the Western Pacific, of which 21 became tropical storms. 12 storms reached typhoon intensity, of which 3 reached super typhoon strength.^[1]

Tropical Storm Wilda (Atring)

Tropical storm (SSHWS)
Duration	June 30 – July 6
Peak intensity	110 km/h (70 mph) (1-min)  980 hPa (mbar)

Typhoon Anita

Category 1 typhoon (SSHWS)
Duration	July 5 – July 10
Peak intensity	130 km/h (80 mph) (1-min)  980 hPa (mbar)

Tropical Storm Clara

Tropical storm (SSHWS)
Duration	July 12 – July 15
Peak intensity	100 km/h (65 mph) (1-min)  985 hPa (mbar)

Super Typhoon Billie (Bining)

Category 4 super typhoon (SSHWS)
Duration	July 12 – July 20
Peak intensity	240 km/h (150 mph) (1-min)  915 hPa (mbar)

Tropical Storm Bille, which developed on July 12 east of the Philippines, rapidly strengthened on the 14th and 15th to a 150 mph super typhoon. It tracked due north, fluctuating in intensity for the next 3 days. A building ridge over the Sea of Japan forced Billie to the northwest, where it weakened greatly, first to a tropical storm on the 18th, then to a tropical depression on the 19th as it passes over northeastern China. The storm dissipated on the 20th.

Typhoon Dot

Category 2 typhoon (SSHWS)
Duration	July 13 – July 21
Peak intensity	155 km/h (100 mph) (1-min)  975 hPa (mbar)

Typhoon Dot struck Hong Kong causing sustained storm force winds, killing one person.^[2]

Typhoon Ellen

Category 3 typhoon (SSHWS)
Duration	July 17 – July 29
Peak intensity	195 km/h (120 mph) (1-min)  940 hPa (mbar)

Tropical Storm Fran (Kuring)

Tropical storm (SSHWS)
Duration	July 27 – July 30
Peak intensity	75 km/h (45 mph) (1-min)  1000 hPa (mbar)

Typhoon Georgia

Category 1 typhoon (SSHWS)
Duration	August 8 – August 15
Peak intensity	130 km/h (80 mph) (1-min)  980 hPa (mbar)

Tropical Storm Hope

Tropical storm (SSHWS)
Duration	August 8 – August 13
Peak intensity	85 km/h (50 mph) (1-min)  1000 hPa (mbar)

Typhoon Iris (Daling)

Category 2 typhoon (SSHWS)
Duration	August 9 – August 20
Peak intensity	155 km/h (100 mph) (1-min)  970 hPa (mbar)

Tropical Depression 11W

Tropical depression (SSHWS)
Duration	August 12 – August 18
Peak intensity	55 km/h (35 mph) (1-min)  1005 hPa (mbar)

Tropical Storm Joan (Elang)

Tropical storm (SSHWS)
Duration	August 17 – August 22
Peak intensity	85 km/h (50 mph) (1-min)  990 hPa (mbar)

Tropical Depression Goring

Tropical depression (PAGASA)
Duration	August 20 – August 22
Peak intensity	55 km/h (35 mph) (10-min)

Tropical Storm Kate

Tropical storm (SSHWS)
Duration	August 23 – August 27
Peak intensity	110 km/h (70 mph) (1-min)  975 hPa (mbar)

Tropical Depression 14W

Tropical depression (SSHWS)
Duration	August 31 – September 3
Peak intensity	55 km/h (35 mph) (1-min)

Typhoon Louise (Huling)

Category 1 typhoon (SSHWS)
Duration	September 2 – September 9
Peak intensity	140 km/h (85 mph) (1-min)  975 hPa (mbar)

Typhoon Marge (Ibiang)

Category 1 typhoon (SSHWS)
Duration	September 11 – September 16
Peak intensity	150 km/h (90 mph) (1-min)  965 hPa (mbar)

Hainan, Qionghai Jiaji town recorded a minimum central pressure of 937.8 hPa when Marge landfall.Marge killed 903 people in Hainan.

Super Typhoon Nora (Luming)

Category 5 super typhoon (SSHWS)
Duration	October 2 – October 10
Peak intensity	295 km/h (185 mph) (1-min)  875 hPa (mbar)

The monsoon trough spawned a tropical depression east of the Philippines on October 1. Under weak steering currents, it meandered westward, where favorable conditions allowed for it to strengthen, first to a tropical storm on the 2nd, then to a typhoon on the 3rd. Nora continued to the northwest, and explosively deepened on the 5th and 6th to a 185 mph super typhoon. At the time, it had a minimum central pressure of 877 millibars, the lowest pressure on record at the time and currently tied for 9th. The typhoon weakened as it headed to the northwest, and struck northeastern Luzon on the 7th as a 115 mph typhoon. Nora continued to the northwest, weakening to a minimal typhoon as it hit southeast China on the 10th. The typhoon caused 18 fatalities, with over $2 million in damage.

Typhoon Opal

Category 1 typhoon (SSHWS)
Duration	October 4 – October 9
Peak intensity	140 km/h (85 mph) (1-min)  970 hPa (mbar)

Super Typhoon Patsy (Miling)

Category 5 super typhoon (SSHWS)
Duration	October 6 – October 15
Peak intensity	260 km/h (160 mph) (1-min)  895 hPa (mbar)

Typhoon Ruth (Narsing)

Category 2 typhoon (SSHWS)
Duration	October 11 – October 21
Peak intensity	165 km/h (105 mph) (1-min)  960 hPa (mbar)

27 people were killed when Typhoon Ruth crossed Luzon on October 15 and caused $5 million in damage. Ruth continued to the northwest, and hit Hainan Island and China on the 19th and 20th, respectively.

Tropical Storm Sarah

Tropical storm (SSHWS)
Duration	November 9 – November 12
Peak intensity	100 km/h (65 mph) (1-min)  985 hPa (mbar)

On November 12 this system emerged in the Bay of Bengal and became Tropical Cyclone 37-73.^[1]

Tropical Storm Thelma

Tropical storm (SSHWS)
Duration	November 14 – November 18
Peak intensity	100 km/h (65 mph) (1-min)  990 hPa (mbar)

Tropical Storm Vera (Openg)

Tropical storm (SSHWS)
Duration	November 19 – November 27
Peak intensity	95 km/h (60 mph) (1-min)  990 hPa (mbar)

One of the strongest tropical cyclones to hit Visayas when it entered on November 20. Tropical Storm Openg affected around 3.4 million people.^[3]

1973 storm names

Western North Pacific tropical cyclones were named by the Joint Typhoon Warning Center. The first storm of 1973 was named Wilda and the final one was named Vera.

See also

• 1973 Pacific hurricane season
• 1973 Atlantic hurricane season

References

1. 1 2 1973 ATCR TABLE OF CONTENTS
2. ↑ Historical Information
3. ↑ de la Cruz, Gwen; Romulo, Mica (August 2, 2014). "Worst natural disasters in the Philippines". Rappler. Rappler. Retrieved March 2, 2016. 

External links

• Japan Meteorological Agency
• Joint Typhoon Warning Center.
• China Meteorological Agency
• National Weather Service Guam
• Hong Kong Observatory
• Macau Meteorological Geophysical Services
• Korea Meteorological Agency
• Philippine Atmospheric, Geophysical and Astronomical Services Administration
• Taiwan Central Weather Bureau
• Digital Typhoon - Typhoon Images and Information
• Typhoon2000 Philippine typhoon website