1948 Pacific typhoon season

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1948 Pacific typhoon season
1948 Pacific typhoon season summary.jpg
Season summary map
Seasonal boundaries
First system formed January 11, 1948
Last system dissipated December 16, 1948
Strongest storm
Name Libby
 • Maximum winds 230 km/h (145 mph)
(1-minute sustained)
 • Lowest pressure 924 hPa (mbar)
Seasonal statistics
Total storms 26
Typhoons 15
Super typhoons 1
Total fatalities Unknown
Total damage Unknown
Related articles
Pacific typhoon seasons
1946, 1947, 1948, 1949, 1950

The 1948 Pacific typhoon season is an event in the annual cycle of tropical cyclone formation, in which tropical cyclones form in the western Pacific Ocean. The season runs throughout 1948, though most tropical cyclones typically develop between May and October. The scope of this article is limited to the Pacific Ocean to the north of the equator between 100°E and 180th meridian. Within the northwestern Pacific Ocean, there are two separate agencies that assign names to tropical cyclones which can often result in a cyclone having two names. The Japan Meteorological Agency (JMA) will name a tropical cyclone should it be judged to have 10-minute sustained wind speeds of at least 65 km/h (40 mph) anywhere in the basin, whilst the Philippine Atmospheric, Geophysical and Astronomical Services Administration (PAGASA) assigns names to tropical cyclones which move into or form as a tropical depression in their area of responsibility located between 135°E and 115°E and between 5°N–25°N regardless of whether or not a tropical cyclone has already been given a name by the JMA. Tropical depressions that are monitored by the United States' Joint Typhoon Warning Center (JTWC) are given a number with a "W" suffix.

Season summary[edit]

Saffir–Simpson hurricane wind scale


Typhoon Karen[edit]

Typhoon (JMA)
Category 4 super typhoon (SSHWS)
Karen 1948 track.png 
Duration January 11 – January 19
Peak intensity 240 km/h (150 mph) (1-min)  936 hPa (mbar)

Typhoon Karen, the strongest cyclone of the season and the one of the earliest recorded if not the earliest super typhoon, developed on January 11, well west of the Philippines. It curved westward while slowly intensifying. After a prolonged period of the slow intensification, the tropical cyclone began to rapidly strengthen. It became a super typhoon on January 16. Shortly after, it weakened and dissipated on January 19.

Typhoon Lana[edit]

Typhoon (JMA)
Category 1 typhoon (SSHWS)
Lana 1948 track.png 
Duration May 16 – May 20
Peak intensity 150 km/h (90 mph) (1-min)  971 hPa (mbar)

Typhoon Mabel[edit]

Typhoon (JMA)
Category 1 typhoon (SSHWS)
Mabel 1948 track.png 
Duration May 29 – June 2
Peak intensity 150 km/h (90 mph) (1-min)  964 hPa (mbar)

Typhoon Nadine[edit]

Typhoon (JMA)
Tropical storm (SSHWS)
Nadine 1948 track.png 
Duration June 9 – June 11
Peak intensity 110 km/h (70 mph) (1-min)  986 hPa (mbar)

Tropical Storm Ophelia[edit]

Tropical storm (SSHWS)
Ophelia 1948 track.png 
Duration June 10 – June 11
Peak intensity 75 km/h (45 mph) (1-min)  991 hPa (mbar)

Ophelia formed on June 10 in the South China Sea. It moved west and struck southern China. It dissipated the next day, without attaining maximum sustained winds any higher than 45 mph.

Typhoon Pearl[edit]

Typhoon (JMA)
Category 2 typhoon (SSHWS)
Pearl 1948 track.png 
Duration July 1 – July 8
Peak intensity 165 km/h (105 mph) (1-min)  960 hPa (mbar)

Typhoon Rose[edit]

Typhoon (JMA)
Category 1 typhoon (SSHWS)
Rose 1948 track.png 
Duration July 23 – July 28
Peak intensity 130 km/h (80 mph) (1-min)  981 hPa (mbar)

Typhoon Bertha[edit]

Typhoon (JMA)
Category 1 typhoon (SSHWS)
Bertha 1948 track.png 
Duration August 4 – August 6
Peak intensity 130 km/h (80 mph) (1-min)  976 hPa (mbar)

Typhoon Chris[edit]

Typhoon (JMA)
Tropical storm (SSHWS)
Chris 1948 track.png 
Duration August 8 – August 14
Peak intensity 95 km/h (60 mph) (1-min)  988 hPa (mbar)

Typhoon Dolores–Eunice[edit]

Typhoon (JMA)
Tropical storm (SSHWS)
Dolores 1948 track.png 
Duration August 10 – August 14
Peak intensity 85 km/h (50 mph) (1-min)  990 hPa (mbar)

Tropical Storm Dolores was tracked by the Air Weather Service located on Guam. At one point, a tropical storm was identified and assigned the name Eunice. Post analysis showed that Tropical Storm Dolores was north of the forecast location and actually the system assigned the name Eunice.[1]

Typhoon Flo[edit]

Typhoon (JMA)
Tropical storm (SSHWS)
Flo 1948 track.png 
Duration August 20 – August 23
Peak intensity 95 km/h (60 mph) (1-min)  990 hPa (mbar)

Typhoon Gestrude[edit]

Typhoon (JMA)
Category 2 typhoon (SSHWS)
Gertrude 1948 track.png 
Duration August 27 – September 4
Peak intensity 155 km/h (100 mph) (1-min)  976 hPa (mbar)

Typhoon Hazel[edit]

Typhoon (JMA)
Category 1 typhoon (SSHWS)
Hazel 1948 track.png 
Duration September 2 – September 7
Peak intensity 150 km/h (90 mph) (1-min)  966 hPa (mbar)

Typhoon Ione[edit]

Typhoon (JMA)
Category 4 typhoon (SSHWS)
Ione 1948 track.png 
Duration September 11 – September 17
Peak intensity 220 km/h (140 mph) (1-min)  925 hPa (mbar)

A Tropical Storm formed on September 11 and soon turned toward Japan as it gained strength. Ione soon reached category 4 intensity on September 14. Ione then began to lose strength and became a category 1 on September 16. Then, Ione struck Japan in that day killing 838 people.[2] Ione further weakened and became a Tropical Storm on the 17th. Ione then dissipated.

Typhoon Jackie[edit]

Typhoon (JMA)
Category 1 typhoon (SSHWS)
Jackie 1948 track.png 
Duration September 11 – September 18
Peak intensity 150 km/h (90 mph) (1-min)  962 hPa (mbar)

Typhoon Kit[edit]

Typhoon (JMA)
Tropical storm (SSHWS)
Kit 1948 track.png 
Duration September 24 – September 28
Peak intensity 110 km/h (70 mph) (1-min)  989 hPa (mbar)

Typhoon Libby[edit]

Typhoon (JMA)
Category 4 typhoon (SSHWS)
Libby 1948 track.png 
Duration September 29 – October 7
Peak intensity 230 km/h (145 mph) (1-min)  924 hPa (mbar)

Typhoon Martha[edit]

Typhoon (JMA)
Category 3 typhoon (SSHWS)
Martha 1948 track.png 
Duration October 4 – October 8
Peak intensity 185 km/h (115 mph) (1-min)  943 hPa (mbar)

Typhoon Norma[edit]

Typhoon (JMA)
Tropical storm (SSHWS)
Norma 1948 track.png 
Duration October 11 – October 12
Peak intensity 95 km/h (60 mph) (1-min)  992 hPa (mbar)

Tropical Storm Olga[edit]

Tropical storm (SSHWS)
Olga 1948 track.png 
Duration October 16 – October 19
Peak intensity 100 km/h (65 mph) (1-min)  994 hPa (mbar)

Typhoon Pat[edit]

Typhoon (JMA)
Tropical storm (SSHWS)
Pat 1948 track.png 
Duration October 27 – October 31
Peak intensity 110 km/h (70 mph) (1-min)  987 hPa (mbar)

Typhoon Rita[edit]

Typhoon (JMA)
Category 3 typhoon (SSHWS)
Rita 1948 track.png 
Duration November 4 – November 11
Peak intensity 185 km/h (115 mph) (1-min)  957 hPa (mbar)

Typhoon Agnes[edit]

Typhoon (JMA)
Category 2 typhoon (SSHWS)
Agnes 1948 track.png 
Duration November 13 – November 20
Peak intensity 175 km/h (110 mph) (1-min)  939 hPa (mbar)

Tropical Storm 24W[edit]

Tropical storm (SSHWS)
24W 1948 track.png 
Duration November 29 – December 2
Peak intensity 85 km/h (50 mph) (1-min)  997 hPa (mbar)

Typhoon Beverly[edit]

Typhoon (JMA)
Category 1 typhoon (SSHWS)
Beverly 1948 track.png 
Duration December 2 – December 10
Peak intensity 150 km/h (90 mph) (1-min)  947 hPa (mbar)

Tropical Storm 26W[edit]

Tropical storm (SSHWS)
26W 1948 track.png 
Duration December 12 – December 16
Peak intensity 75 km/h (45 mph) (1-min)  997 hPa (mbar)

Other Systems[edit]

Between 23 July and 4 August, the name Annabell was assigned to a North West Pacific system. The Air Weather Service issued a bulletin issued and tropical cyclone named on what was later determined to be "trough activity"

Storm names[edit]

Tropical storm names were assigned by the Joint Typhoon Warning Center since 1945.

Karen Lana Mabel Nadine Ophelia Pearl Rose Annabell Bertha
Chris Dolores Eunice Flo Gestrude Hazel Ione Jackie Kit
Libby Martha Norma Olga Pat Rita Agnes Beverly

See also[edit]


  1. ^ Air Weather Service "Report on the Typhoon Post-Analysis Program (1948-1949) of the North Pacific Typhoon Warning System"
  2. ^ Translate.google.com

External links[edit]