1954 Pacific hurricane season

Tropical storm (SSHWS)
Duration	July 10 – July 17
Peak intensity	50 mph (85 km/h) (1-min);; ≤1000 mbar (hPa)

Tropical storm (SSHWS)
Duration	June 18 – June 22
Peak intensity	50 mph (85 km/h) (1-min);; ≤1005 mbar (hPa)

1954 Pacific hurricane season
1954 Pacific hurricane season
	Season summary map
Seasonal boundaries
First system formed	June 18, 1954
Last system dissipated	November 1, 1954
Strongest storm
By maximum sustained winds	Three, Four, Nine, and Eleven
• Maximum winds	85 mph (140 km/h); (1-minute sustained)
Seasonal statistics
Total depressions	11
Total storms	11
Hurricanes	4
Major hurricanes; (Cat. 3+)	0
Total fatalities	5 direct, 35 indirect
Total damage	Unknown
Related articles
	1954 Atlantic hurricane season; 1954 Pacific typhoon season; 1950s North Indian Ocean cyclone seasons;
	Pacific hurricane seasons; 1952, 1953, 1954, 1955, 1956

The 1954 Pacific hurricane season featured below-average activity, with eleven tropical storms identified.^{[nb 2]} The season officially started on May 15 and lasted until November 30. These dates conventionally delimit the period of each year when most tropical cyclones form in the Pacific basin.^[2] The majority of the year's storm remained offshore and caused little to no adverse impact on land. However, a tropical storm in October brought flooding rain to Mexico and Guatemala that left five people dead and thousands homeless. An unknown disease in the storm's wake killed a further 35 people.

The relative lack of activity is a byproduct of limited monitoring tools at the time. In 1954, Pacific hurricanes were only able to be identified by ship reports (either post-trip logs or in situ transmissions) and coastal observations.^[3] No more than eight coastal cities reported regular observations. Additionally, only two cities, Empalme, Sonora, and Mazatlán, Sinaloa, launched radiosondes—a key factor in detecting tropical cyclones at the time—further limiting detection capabilities.^[4]

Systems

Tropical Storm One

On June 17, an area of low pressure was identified on surface weather maps just off the coast of Guatemala.^[5] The following day, the system was classified as a tropical storm approximately 210 mi (340 km) southwest of Guatemala City. Tracking generally northwest, the system acquired maximum sustained winds of 50 mph (85 km/h). On June 20–21, the storm moved parallel to the Mexican coastline before turning north on June 22. It was last noted offshore on this day, approximately 50 mi (85 km) south of Lázaro Cárdenas, Michoacán.^[6]

Tropical Storm Two

Tropical Storm Two existed from July 10 to July 16.

Hurricane Three

Category 1 hurricane (SSHWS)

Duration	July 12 – July 17
Peak intensity	85 mph (140 km/h) (1-min);

This hurricane made landfall in the Baja California Peninsula.

Moisture from this system spread across the southwestern United States, reaching 2 in (51 mm) in the deserts of southern California. Floods covered a nearly 8 mi (13 km) portion of U.S. 66.^[7]^[8]

Hurricane Four

Category 1 hurricane (SSHWS)

Duration	July 25 – August 1
Peak intensity	85 mph (140 km/h) (1-min);

Hurricane Four existed from July 25 to August 1.

Tropical Storm Five

Tropical storm (SSHWS)

Duration	September 2 – September 9
Peak intensity	50 mph (85 km/h) (1-min);

Tropical Storm Five existed from September 2 to September 9.

Tropical Storm Six

Tropical storm (SSHWS)

Duration	September 5 – September 8
Peak intensity	50 mph (85 km/h) (1-min);

Tropical Storm Six existed from September 5 to September 9.

Tropical Storm Seven

Tropical storm (SSHWS)

Duration	September 15 – September 21
Peak intensity	50 mph (85 km/h) (1-min); 981 mbar (hPa)

Tropical Storm Seven existed from September 15 to September 21.

Tropical Storm Eight

Tropical storm (SSHWS)

Duration	September 21 – September 27
Peak intensity	50 mph (85 km/h) (1-min);

Tropical Storm Eight existed from September 21 to September 27.

Hurricane Nine

Category 1 hurricane (SSHWS)

Duration	September 27 – October 1
Peak intensity	85 mph (140 km/h) (1-min);

Hurricane Nine existed from September 27 to October 1.

Tropical Storm Ten

Tropical storm (SSHWS)

Duration	October 12 – October 14
Peak intensity	50 mph (85 km/h) (1-min); ≤1000 mbar (hPa)

Tropical Storm Ten existed from October 12 to October 14. Surface weather maps indicate the system had a central pressure of at most 1000 mbar (hPa; 29.53 inHg) on October 13.^[9]

Heavy rains from the storm affected much of Mexico, impacting areas as far north as Tampico. Flooding along the Pánuco River rendered 160 people homeless; electrical service and water supplies were disrupted.^[10] The towns of Panuco and Revenadero were largely destroyed; thousands of acres of crops were submerged and livestock loss was severe.^[11] Five people died due to flooding in coastal towns near Tampico. An unidentified diseased in the storm's wake claimed 35 lives.^[12] Aid workers traveled along the swollen Pánuco River to distribute supplies, including food and snake bite serum.^[10] Severe flooding also plagued Guatemala, with thousands rendered homeless.^[13]

Hurricane Eleven

Category 1 hurricane (SSHWS)

Duration	October 26 – November 1
Peak intensity	85 mph (140 km/h) (1-min);

Hurricane Eleven existed from October 26 to November 1.

Notes

^ The pressure record for this season is incomplete, and therefore no ranking by pressure is made.
^ An average season, based on 1981–2010 averages, is defined as 15.4 tropical storms, 7.6 hurricanes, and 3.2 major hurricanes.^[1]

References

^ "Background Information: East Pacific Hurricane Season". Climate Prediction Center. College Park, Maryland: National Oceanic and Atmospheric Administration. May 22, 2014. Retrieved May 29, 2014.
^ Christopher W. Landsea; Neal Dorst; Erica Rule (June 2, 2011). "G: Tropical Cyclone Climatology". Hurricane Research Division: Frequently Asked Questions. National Oceanic and Atmospheric Administration. G1) When is hurricane season ?. Retrieved January 17, 2016. {{cite book}}: |work= ignored (help)
^ Sandy Delgado; et al. (2014). Reanalysis of the 1954–1963 Atlantic hurricane season (PDF) (Report). National Hurricane Center. p. 9. Archived from the original (PDF) on March 13, 2016. Retrieved January 17, 2016.
^ Sergio Serra C. (April 1971). "Hurricanes and Tropical Storms of the West Coast of Mexico" (PDF). Monthly Weather Review. 99 (4). American Meteorological Society: 302–308. Bibcode:1971MWRv...99..302S. doi:10.1175/1520-0493(1971)099<0302:HATSOT>2.3.CO;2. Retrieved January 17, 2016.
^ "June 17, 1954, Surface Weather Analysis" (PDF). United States Weather Bureau. National Oceanic and Atmospheric Administration. 1954. Retrieved January 18, 2016.
^ National Hurricane Center; Hurricane Research Division; Central Pacific Hurricane Center (April 26, 2024). "The Northeast and North Central Pacific hurricane database 1949–2023". United States National Oceanic and Atmospheric Administration's National Weather Service. Archived from the original on May 29, 2024. A guide on how to read the database is available here. This article incorporates text from this source, which is in the public domain.
^ Jack Williams (May 17, 2005). "Background: California's tropical storms". USAToday. Retrieved January 17, 2016.
^ A History of Significant Weather Events in Southern California (PDF) (Report). San Diego National Weather Service. February 2023. Retrieved May 18, 2024.
^ "October 13, 1954, Surface Weather Analysis" (PDF). United States Weather Bureau. National Oceanic and Atmospheric Administration. 1954. Retrieved January 17, 2016.
^ ^a ^b "Many Homeless as Result of Floods In Tampico Area". Brownwood Bulletin. Tampico, Mexico. United Press. October 15, 1954. p. 29. Retrieved January 17, 2016 – via Newspapers.com.
^ "Disease Rages in Wake of Floods". The Terre Haute Tribune. Tampico, Mexico. Associated Press. October 16, 1954. p. 2. Retrieved January 17, 2016 – via Newspapers.com.
^ "Disease Follows Flood". Greeley Daily Tribune. Tampico, Mexico. Associated Press. October 16, 1954. p. 1. Retrieved January 17, 2016 – via Newspapers.com.
^ "Floods Hit Guatemala". The Eugene Guard. Guatemala. October 15, 1954. p. 2. Retrieved January 17, 2016 – via Newspapers.com.

[1] The pressure record for this season is incomplete, and therefore no ranking by pressure is made.

[3] An average season, based on 1981–2010 averages, is defined as 15.4 tropical storms, 7.6 hurricanes, and 3.2 major hurricanes.^[1]

[2] "Background Information: East Pacific Hurricane Season". Climate Prediction Center. College Park, Maryland: National Oceanic and Atmospheric Administration. May 22, 2014. Retrieved May 29, 2014.

[SeasonDates-4] Christopher W. Landsea; Neal Dorst; Erica Rule (June 2, 2011). "G: Tropical Cyclone Climatology". Hurricane Research Division: Frequently Asked Questions. National Oceanic and Atmospheric Administration. G1) When is hurricane season ?. Retrieved January 17, 2016. {{cite book}}: |work= ignored (help)

[5] Sandy Delgado; et al. (2014). Reanalysis of the 1954–1963 Atlantic hurricane season (PDF) (Report). National Hurricane Center. p. 9. Archived from the original (PDF) on March 13, 2016. Retrieved January 17, 2016.

[6] Sergio Serra C. (April 1971). "Hurricanes and Tropical Storms of the West Coast of Mexico" (PDF). Monthly Weather Review. 99 (4). American Meteorological Society: 302–308. Bibcode:1971MWRv...99..302S. doi:10.1175/1520-0493(1971)099<0302:HATSOT>2.3.CO;2. Retrieved January 17, 2016.

[7] "June 17, 1954, Surface Weather Analysis" (PDF). United States Weather Bureau. National Oceanic and Atmospheric Administration. 1954. Retrieved January 18, 2016.

[EPAC_HURDAT-8] National Hurricane Center; Hurricane Research Division; Central Pacific Hurricane Center (April 26, 2024). "The Northeast and North Central Pacific hurricane database 1949–2023". United States National Oceanic and Atmospheric Administration's National Weather Service. Archived from the original on May 29, 2024. A guide on how to read the database is available here. This article incorporates text from this source, which is in the public domain.

[9] Jack Williams (May 17, 2005). "Background: California's tropical storms". USAToday. Retrieved January 17, 2016.

[nws-10] A History of Significant Weather Events in Southern California (PDF) (Report). San Diego National Weather Service. February 2023. Retrieved May 18, 2024.

[11] "October 13, 1954, Surface Weather Analysis" (PDF). United States Weather Bureau. National Oceanic and Atmospheric Administration. 1954. Retrieved January 17, 2016.

[Ten1-12] "Many Homeless as Result of Floods In Tampico Area". Brownwood Bulletin. Tampico, Mexico. United Press. October 15, 1954. p. 29. Retrieved January 17, 2016 – via Newspapers.com.

[13] "Disease Rages in Wake of Floods". The Terre Haute Tribune. Tampico, Mexico. Associated Press. October 16, 1954. p. 2. Retrieved January 17, 2016 – via Newspapers.com.

[14] "Disease Follows Flood". Greeley Daily Tribune. Tampico, Mexico. Associated Press. October 16, 1954. p. 1. Retrieved January 17, 2016 – via Newspapers.com.

[15] "Floods Hit Guatemala". The Eugene Guard. Guatemala. October 15, 1954. p. 2. Retrieved January 17, 2016 – via Newspapers.com.

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v t e Tropical cyclones in 1954
Cyclones	Australian region (1953–54 1954–55) North Indian Ocean South-West Indian Ocean (1953–54 1954–55) South Pacific (1953–54 1954–55)
Hurricanes	Atlantic Pacific
Typhoons	Pacific
Non-seasonal lists	Mediterranean South Atlantic

v t e Tropical cyclones of the 1954 Pacific hurricane season
	TS One TS Two 1 Three 1 Four TS Five TS Six TS Seven TS Eight 1 Nine TS Ten 1 Eleven
Category