The 1925–1949 Pacific hurricane seasons all began during late spring in the northeast Pacific Ocean and the central Pacific. They ended in late fall.
Before the satellite age started in the 1960s, data on east Pacific hurricanes is extremely unreliable. In a few years, there are no reported cyclones although many systems certainly formed.
A small tropical cyclone existed in the Gulf of Tehuantepec from June 3 to June 6. It had gale-force winds, and its lowest reported pressure was 29.53inHg.[1]
Off the coast of Mexico, a hurricane existed from July 7 to July 10. The lowest reported pressure was 28.90inHg.[2]
A tropical cyclone existed from July 17 to July 22.[3]
On July 31 and August 1, a tropical cyclone was encountered by a steamer called the West Calera. This tropical cyclone headed west-northwest and stayed south of the Hawaiian Islands. It brought gales to Honolulu from August 1 to August 4. It also brought heavy surf to Oahu and the Big Island. That surf flooded a warehouse at Honuapo. It also flooded houses in Honuapo and Punaluu Beach, and collapsed flurtes at Hutchinson Plantation. On Oahu, Fort Kamehameha was flooded. Lawns at Diamond Head and Kahala were damaged, as were houses on the northern side of Oahu.[4]
A tropical cyclone existed on August 16. It had gale-force winds. The lowest reported pressure was 29.79inHg.[3]
Far from land, on September 27 to September 28, the same ship that encountered the July 31-August 4 cyclone encountered a hurricane east of the Hawaiian Islands. That ship reported a pressure of 28.53inHg.[4]
South of the Gulf of Tehuantepec, a tropical cyclone formed. It headed west-northwest. On October 24, it recurved to the north, and made landfall near Cabo Corrientes on October 25. The next day, it dissipated inland.[5] The lowest pressure reported in association with this hurricane was 28.57inHg. It caused rain throughout coastal areas near where it hit.[6] This hurricane also damaged many houses, and blew down trees in mountainous areas.[5]
A ship encountered a strong tropical cyclone near Acapulco on November 10. On November 11, it was near Manzanillo. It was not seen after that. This tropical cyclone was initially reported to have a pressure of 29.19inHg (uncorrected).[5] However, a later report attributes a pressure of 28.15inHg.[7] Even in HURDAT, the modern "best track" database, there was no November tropical cyclone this intense until Hurricane Kenneth in 2011, which broke this record.[8] This hurricane also caused heavy rains to coastal areas of Mexico.[5]
A tropical cyclone existed from December 22 to December 26.[7]
A tropical storm existed in the Gulf of Tehuantepec on June 13. The lowest reported pressure was 29.55inHg.[9]
Far from land, a tropical cyclone was reported on July 21. It had gale-force winds and a minimum reported pressure of 29.49inHg.[10]
Well south of Mexico, a tropical cyclone formed on July 5. It moved northwestward, and was last observed on July 9 while located south of the southern tip of the Baja California Peninsula. It was a hurricane, and the lowest reported pressure was 28.90inHg.[10]
On August 8, a tropical cyclone began forming. It was definitely extant on August 11, and was last seen on August 15. It caused gales and had a lowest reported pressure of 29.44inHg.[11]
Another tropical cyclone was observed from August 22 to August 23. It had a lowest reported pressure of 29.60inHg and also caused gales.[11]
A tropical cyclone existed from September 14 to September 16, during which time it moved along the coast. The lowest reported pressure was 29.64inHg. It caused heavy rain.[12]
A tropical cyclone moved along the coast from Manzanillo, to Mazatlán, to the southern tip of the Baja California Peninsula, from September 24 to September 26. It had gale-force winds, a lowest reported pressure of 29.56inHg, and caused heavy rainfall.[12]
A tropical cyclone formed south of Acapulco on October 2. The next day, it was a tropical storm. It pretty much hung around in the same area, and dissipated near the western Gulf of Tehuantepec on October 11. The lowest reported pressure was 29.55inHg.[13]
A tropical cyclone moved along the coast of Mexico from June 14 to June 18. It had gale-force winds and a minimum reported pressure of 29.58inHg.[14]
A tropical storm might have existed off the coast of Mexico from June 28 to June 30.[15]
A small tropical cyclone was detected on July 1. Its lowest reported pressure was 29.56inHg, and was moving along the coast of Mexico.[14]
A ship encounted a tropical cyclone on July 5. The ship reported a pressure of 29.70inHg. The cyclone was moving west-northwest.[14]
On July 28, a tropical cyclone moved eastward in the Gulf of Tehuantepec.[14]
Roughly southwest of the Gulf of Tehuantepec, a tropical cyclone formed on August 7. It moved along the coast and dissipated south of the entrance to the Gulf of California on August 10.[16]
On September 6, a tropical cyclone formed south of the Gulf of Tehuantepec. It moved along the coast, and by September 8 it was west of Manzanillo. It entered the Gulf of California on September 10, and it made landfall or dissipated the next day. The lowest reported pressure was 29.15inHg.[17]
The tropical cyclone caused much damage and destruction.[17] The cyclone drove huge waves ashore along the coast, and destroyed rail lines linking Mexico City with the Pacific coast.[18] Some ships were also missing and presumed sunk.[19] Shipping was badly damaged.[20] Some of the ships initially reported sunk were later accounted for.[21] The worst hit areas were Manzanillo and Salina Cruz. Salina Cruz was reduced to ruins.[18] A sudden plunge in the barometer provided enough warning for emergency evacuations in those cities, which were credited with keeping the death toll below that which was initially reported.[21] In Mazatlán, one person was killed by being swept over the sea wall.[18] Acambaro, Guanajuanto was flooded.[22] In the aftermath, displaced refugees attempted to cross the border and enter Nogales, Arizona.[23]
A tropical cyclone formed in the Gulf of Tehuantepec on September 11. It moved northwest and was last observed on September 12.[17]
In the Gulf of Tehuantepec, a tropical cyclone was detected on September 25. It moved along the coast and was last seen on September 30. The lowest reported pressure was 29inHg; a ship reported a maximum windspeed of 125 miles per hour (200 kph).[17]
A tropical depression existed south of Acapulco on October 19 and October 20.[24]
A weak tropical cyclone existed south of the Gulf of California was spotted on May 24. It moved westward, and was last seen on May 27. The lowest pressure reported was 29.77inHg.[25]
A tropical cyclone in the Gulf of Tehuantepec produced gales on June 5. The lowest reported pressure was 29.67inHg.[26]
A hurricane existed south of Cape Corrientes on July 28 and July 29. The lowest reported pressure was a reading of 29.64inHg.[27]
A tropical cyclone was noticed just south of the Mexican coast on August 6. This system might have formed south of Costa Rica three days earlier. Wherever it formed, this tropical cyclone intensified into a hurricane, and paralled the coast. It passed south of the Gulf of California on August 10. The hurricane passed northwestward of Cabo San Lucas on September, and dissipated on August 11 while over the southern part of the Baja California Peninsula. The lowest pressure reported in association with this hurricane was 28.50inHg.[28]
This hurricane brought gale or hurricane-force winds to several areas of the Mexican coast. An American steamer, the William A. McKenney, had its cargo and structure damaged by the hurricane. Repairs were attempted during the storm, and 14 members of its crew were washed overboard and drowned.[28]
On September 1, a tropical cyclone formed well south of the southern tip of the Baja California Peninsula. It moved west-northwest and was last seen on September 3. A ship reported a pressure reading of 29.44inHg.[29]
About 200 miles west-southwest of Acapulco, a tropical cyclone formed on September 17. It slowly moved northwestward. It had intensified into a hurricane by September 18. On September 21, the hurricane weakened and recurved to the east-northeast. It made landfall north of Mazatlán and became a remnant over Mexico. Its remnants had crossed Mexico by September 22 and entered the Gulf of Mexico south of Brownsville, Texas.[29] They never developed into anything,[30] and had dissipated by the end of the month. The lowest pressure reported by a ship was 28.82inHg.[29]
From September 20 to September 22, a tropical cyclone existed south of the Gulf of Tehuantepec.[29]
On October 7, at a location well south of the entrance to the Gulf of California, a hurricane existed. It was moving northwest. A ship measured a central pressure of 29.60inHg.[31]
On October 16 and October 17, a ship encountered a tropical cyclone well south of the southern Tip of the Baja California Peninsula. The ship reported a pressure of 29.48inHg.[31]
A tropical cyclone existed from May 29 to June 1. Starting from a location southwest of the Gulf of Tehuantepec, it traveled west-northwestward not far off the Mexican shore. A ship recorded its lowest known pressure of 29.21inHg.[32]
A cyclone existed southwest of Acapulco on June 16 and June 17. It produced gales, and a ship reported a pressure reading of 29.66inHg.[33]
On August 2, a tropical cyclone formed near the Mexican coast. It eventually became a hurricane, and was last seen on August 6. The lowest pressure reported in association with this system was 28.80inHg.[34]
On August 21 and August 22, a ship encountered a possible tropical cyclone at a location far from land and almost in the central Pacific basin. The lowest pressure reported by a ship was 29.42inHg.[34]
On August 28. It moved along the coast, and passed over the southern tip of the Baja California Peninsula around August 31.[34]
On September 10, a tropical cyclone formed in the Gulf of Tehuantepec. It moved along the coast, and was a hurricane by September 13.[35] It moved along the Pacific side of the Baja California Peninsula, and became a remnant off its northern coast on September 16.[36] It's remnants subsequently moved inland, and dissipated around September 18. The lowest pressure measured in association with this tropical cyclone was 28.28inHg.[35]
This tropical cyclone inflicted gale or hurricane-force winds along parts of the coast of Mexico, including Manzanillo, Acapulco, and Mazatlán.[37] On September 18, its remnants caused rain of up to 4 inches in mountainous parts of Southern California.[38] An unseasonal warming was also attributed to this cyclone. It was also responsible for the strongest September winds ever recorded in San Diego up to that time.[39]
Somewhere between Manzanillo and Acapulco, a tropical cyclone might have existed on September 19.[40]
On September 23, a tropical cyclone was located southeast of the Gulf of Tehuantepec. It was last observed the next day. A ship reported a pressure of 29.56inHg.[40]
On June 4, a tropical cyclone formed south of the Gulf of Tehuantepec. It paralleled the coast, became a hurricane, and approached the coast. On October 11, it made landfall north of Mazatlán and dissipated inland. Some damage in Mazatlán was reported.[41]
From August 18 to August 20, a tropical cyclone existed in the waters west of Manzanillo. A ship reported a pressure of 29.63inHg.[42]
On October 3, a tropical cyclone formed near the Revillagigedo Islands. It slowly moved northeasterly, became very intense, and made landfall north of Mazatlán on October 4 or October 5. Once inland, it greatly increased in speed, and dissipated October 7, while over Arkansas. A ship in the eye of the hurricane reported a pressure of 27.72inHg, low enough to make this the most intense Pacific hurricane in Mexican waters known at the time.[43]
This hurricane hassled a number of ships. One of them needed to be repaired at a cost of $10,000 (1930 USD), and another had its cargo damaged.[43]
On October 9, a tropical cyclone formed in the Gulf of Tehuantepec. Eventually becoming a hurricane, it moved up the coast as far as Acapulco. It was last seen on October 11. The lowest pressure reported was 29inHg.[43]
This hurricane caused damage in Acapulco. Many buildings were demolished by the storm, and roads and telegraph lines were destroyed.[44] Damage to property was heavy, but no one was killed or injured.[45]
On October 16, a tropical cyclone existed somewhere between Acapulco and Cape Corrientes.[43] Two days later, it made landfall near La Manzanilla, Jalisco as a hurricane near with a pressure of 983 mbar.[46] It or its remnants managed to cross the Isthmus of Tehuantepec and enter the Bay of Campeche, where they dissipated on October 20.[43]
On July 3, a tropical cyclone possibly existed south of Acapulco. A ship measured a pressure of 29.55inHg.[47]
In the western part of the Gulf of Tehuantepec, a possible tropical cyclone existed on July 10. A ship reported a pressure of 29.66inHg.[47]
On July 21, a tropical cyclone began forming southwest of Manzanillo. It had completely formed by July 23. It moved along the coast, and entered the Gulf of California. It was last observed on July 25. This cyclone produced gales, and the lowest reported pressure was 29.39inHg.[47]
On July 26, a tropical cyclone existed midway between Acapulco and Salina Cruz. The lowest pressure reported by a ship was 29.63inHg.[47]
In the central Pacific east-southeast of the Hawaiian Islands, a ship encountered a tropical cyclone on August 30 and August 31. It produced gales, and a pressure of 28.82inHg.[48]
South of the coast of Mexico, a tropical cyclone formed on September 6. It paralleled the coast, entered the Gulf of California, and dissipated by September 14.[49]
This system sank an American steamship called the Colombia (losses unknown).[49] On land, the area around Santa Rosalía, Baja California Sur was severely devastated. More than 100 people were killed on land,[50] mostly due to drowning.[51]
In Santa Rosalía itself, 50 were killed. Numerous small craft were sunk, with at least eight people going down with them. A merchant ship called Perkins was damaged in the storm, with wwo people were washed overboard. On land, connections with the El Boleo copper mine were destroyed, with the mine itself flooded, causing $500,000 (1931 USD) in damage.[52] Hundreds were left homeless. In the aftermath, there was a shortage of food and medicine,[51] and troops were dispatched to maintain order.[52]
The next tropical cyclone was a slightly weaker and faster-moving clone of the previous one. On September 14, it formed at around the same location as the first, and took a similar path. It dissipated September 18 in the Gulf of California.[49]
A tropical cyclone existed from September 20 to on or just after September 24. It formed well south of the Mexican coast. It moved northwestward, and dissipated off the coast of the Baja California Peninsula.[49]
On September 26, a tropical cyclone formed south of the Mexican coast. It moved generally northwards, and dissipated in the Gulf of California sometime after September 29.[49]
A tropical cyclone formed in the Gulf of Tehuantepec on June 18. It moved along the coast, became a hurricane, and was last seen June 21. The lowest pressure was an uncorrected 29.48inHg. This hurricane was reported to have winds of 130 mph.[53]
On August 21, tropical cyclone was heading northwestward south of the Revillagigedo Islands. A ship at the fringes of the cyclone measured a pressure of 29.08inHg.[54]
Somewhere southwest of the Gulf of Tehuantepec, a tropical cyclone formed on September 24. It paralleled the coast, and intensified into a hurricane on September 25. It then recurved, and made landfall near Mazatlán late during the night of September 26 and September 27, while still a hurricane. It dissipated inland over the mountains of Mexico. The lowest pressure reported by a ship was 28.64inHg. The hurricane caused about $5,000,000 (1932 USD) in damage.[54]
On September 26, a hurricane was spotted south of Acapulco. It headed along the coast, and entered the Gulf of California sometime on or after September 28,[55] wherein it moved north-northwest and dissipated, with its remnants continuing into the Southwestern United States.[38]
Powerful winds in Mazatlán were attributed to this tropical cyclone.[55] Over a four day period ending October 1, those remnants caused heavy rain of up to 7 inches in the mountains of Southern California. Over a seven hour period, 4.38 inches fell at Tehachapi.[38] That total by itself is enough to make this tropical cyclone one of California's wettest.[56] Those rains also caused flash flooding on Tehachapi and Agua Caliente Creeks, which killed fifteen people.[36]
On May 30, a tropical cyclone existed in the Gulf of Tehuantepec. Shortly after its discovery, it dissipated off the coast of Guatemala. A ship reported gales and a pressure of 29.44inHg.[57]
Sometime in June, a possible tropical cyclone existed south of the Mexican coast.[58]
A possible tropical cyclone was reported between Salina Cruz and Acapulco July 7. It had moved closer to Acapulco by July 8. This system might have been associated with the remnants of the Atlantic's second tropical cyclone.[59]
Another possible tropical cyclone existed in the same area on July 29.[59]
A tropical cyclone formed in the Gulf of Tehuantepec on August. It moved along the coast, becoming at least a tropical storm, and dissipated in the Gulf of California on August 19 or August 20. A ship reported an uncorrected barometer reading of 29.48inHg.[60]
A possible tropical cyclone existed on September 13. It was located well west of Manzanillo.[61]
A possible tropical cyclone, with a ship-reported pressure of 29.53, was located southwest of Acapulco from July 8 to July 9.[62]
On July 18, a possible hurricane existed north of Cape Corrientes.[62]
Somewhere south of Acapulco, a tropical cyclone formed on September 16. It headed along the coast, not strengthening much until September 18. It was a hurricane by September 19. For the next three days, it slowly moved through the area south of the Gulf of California. It had weakened to a depression by September 22, whence it made landfall on the Baja California Peninsula and dissipated. The lowest pressure reported by a ship was 28.82inHg.[63]
This hurricane caused death and destruction throughout the southern part of the Baja California Peninsula. A large number of people were killed, and many were injured. The hurricane left twenty thousand people homeless and reduced to hunger.[64] Damage was particularly heavy in La Paz, Triunfor, San Antonio, San Bartolo, Miraflores, San José del Cabo, and Cabo San Lucas. Electricity and water utilities were severely disrupted. The hurricane destroyed the area's tomato crop, and severely disrupted sugarcane plantations. It also destroyed a recently-finished highway between La Paz and San Bartolo, and flooded mines near San Antonio and Triunfo. The total damage was estimated at 500,000,000 pesos (1934 MXP). The Mexican government sent aid to the affected area, along with the International Red Cross.[65]
On October 14, well off the coast of Mexico, a tropical storm was noticed. It headed north towards the Gulf of California, and dissipated October 16. The cyclone was a hurricane, and a ship reported a pressure of 28.25inHg.[66]
A tropical storm caused gales in Manzanillo on July 1.[67]
On August 5, a tropical cyclone formed just off the coast of Mexico. It generally moved west-northwest, and was last seen August 9. The storm caused gales, and a ship reported a pressure reading of 29.61inHg.[68]
South of the Gulf of Tehuantepec, a tropical cyclone formed on August 17. It remained poorly organized and moved slowly, making landfall on August 20. It had moved back off shore by August 21. It headed northwest, passing west of Cabo San Lucas, and hugged the Pacific coast of the Baja California Peninsula. It rapidly weakened as it headed north, and its remnants made landfall near Point Conception, California, on August 26 and dissipated after that.[68]
The tropical cyclone destroyed many buildings in Salina Cruz on August 20. It also blew down trees and downed power lines. No casualties were reported.[69] The tropical cyclone remnants also caused rainfall of up to 2 inches in parts of California and Arizona.[38]
Just off the coast of Guatemala, a tropical storm was reported on June 8. It headed north, and sometime after June 9 made landfall. It crossed the isthmus, and it emerged into the Gulf of Honduras. The system then became the first tropical storm of the 1936 Atlantic hurricane season.[70] This cyclone's lowest measured pressure while located in the Pacific Ocean was 29.67inHg.[71] This tropical storm caused heavy rains over parts of Central America, especially the Yucatán and British Honduras.[70]
On June 22, there was a possible tropical cyclone some ways south of Acapulco. A ship reported a pressure reading of 29.49inHg.[71]
About or before 5 August, a tropical cyclone formed southwest of Cape Corrientes. It tracked along the coast and reached hurricane intensity for a time. It entered the Gulf of California and moved up its entire length, weakening as it went north-northwestward. The tropical storm made landfall near the head of the Gulf of California on 8 August and dissipated inland. The lowest pressure reported was 29.39inHg.[72] On 8 August in consequence of this tropical storm, San Diego, California, recorded a maximum wind velocity of 26 miles per hour from the south and a temperature of 94 degrees Fahrenheit. The wind whipped tender plants west of San Diego but did little other damage in California. Remnants of this tropical cyclone contributed locally heavy rain over parts of southern California and Arizona on 9 August. A wind and rain storm struck central and southeast Arizona on 8 August, causing $15,000 in damage. Floods washed out railroad tracks near Tucson, and the storm blocked highways and disrupted railway, bus, and airline schedules. In Phoenix, winds swept roofs away and uprooted trees. Two persons suffered injury as the storm demolished their home.[38]
On August 17, a hurricane was located south of Cabo San Lucas. It rapidly moved north along the Pacific side of the Baja California peninsula. It was last detected in a much weakened state on August 18. The lowest pressure reading was 28.82inHg.[72]
The hurricane caused serious damage to fishing vessels. Two that had sought refuge in Magdalena Bay were driven aground. Another, the Enterprise, was destroyed on Tosco Point. Its crew of twelve were rescued by the Panama Pacific liner California.[73]
A tropical cyclone formed near Cape Corrientes on September 8. It moved north, intensified into a hurricane, and made landfall near Cabo San Lucas late on September 9. It had dissipated by September 10. The lowest pressure reading reported for this system was 29.25inHg.[74]
From September 24 to September 26, a tropical cyclone might have existed in the waters off Manzanillo and south of the Gulf of California.
On October 27, an area of low pressure existed. By October 28, it had intensified into a hurricane. A ship reported a pressure 28.78inHg. On October 29, a ship in subtropical latitudes low that was the remnant of this hurricane.[75]
On December 4, a northward-moving tropical depression passed over some of the Hawaiian Islands. Its only apparent impact was to cause intensification of the trade winds.[76]
On May 25, a tropical cyclone was detected south of Acapulco. The cyclone headed northwards, made landfall directly at Acapulco that day. Weather associated with this tropical cyclone made it to Gulf of Mexico, where they became a depression in the Bay of Campeche on May 27.[77] However, this depression never developed into anything.[30]
This tropical cyclone destroyed telephone and telegraph lines leading into Acapulco, cutting that city off from the outside world for four days. Numerous buildings in the city were damaged. Several fishing boats were missing, and a woman was killed when a telephone pole was blown down on her.[78]
On June 16, while west of the Revillagigedo Islands, a ship encountered a possible westward-moving tropical cyclone. The ship reported a pressure of 29.74inHg.[79]
On June 23, a tropical cyclone was spotted developing south of Acapulco. It had fully formed by June 24, and moved northward. It then turned to the north-northeast and approached the Gulf of California, where it subsequently dissipated on June 26. The lowest pressure reported by a ship was 29.63inHg.[79]
On August 31, a hurricane was observed west of the Revillagigedo Islands. A ship measured a central pressure of 29.12.[80]
On October 24, a tropical cyclone formed well south of the Revillagigedo Islands. It rapidly headed northeast, and had approached land somewhere between Manzanillo and Cape Corrientes by October 27. At that point, the cyclone fell apart and ceased to exist. A ship reported a pressure of 29.59inHg.[81]
A tropical storm possibly existed in the Gulf of Tehuantepec on June 2.[82]
On June 15, a tropical cyclone was observed. It was moving northwestward. A pressure reading of 28.84 was reported in association with this tropical cyclone.[82]
On June 20, a tropical cyclone was observed west of Manzanillo. Two days later, it was observed again south of the entrance to the Gulf of California. The tropical cyclone was not observed after June 22. The lowest pressure reported by a ship was 29.59inHg.[82]
Southeast of Acapulco, a tropical cyclone existed on June 25. It was moving northwestward, and its lowest reported pressure was 29.14inHg.[82]
On July 28, a tropical cyclone caused gales in the Gulf of Tehuantepec.[83]
A tropical cyclone existed on August 1. It moved west, and was last detected on August 2. The lowest pressure reading was of 29.68inHg.[84]
A tropical storm was detected on August 4. It was moving westwards. A ship recorded a pressure of 29.82.[84]
On August 18, a tropical depression formed close to the Revillagigedo Islands. By the next day, it had move to a location west-southwest or west of Cabo San Lucas. A ship reported a pressure reading of 29.50inHg. The cyclone dissipated by late August 19.[84]
On August 18 and August 19, a severe storm struck the Hawaiian Islands. It caused gales, broke August rainfall records, and a record low pressure of 29.77inHg. The storm also downed power lines and damaged crops and trees at a plantation. The Central Pacific Hurricane Center calls this event the "Mokapu Cyclone" and speculates that it might have been caused by a tropical cyclone.[4]
On September 1, a possible tropical depression formed south of Cape Corrientes. Without strengthening, it moved into the Gulf of California, from which it made landfall on on September 3.[85]
In the Gulf of Tehuantepec, a tropical cyclone formed on September 4. It moved along the coast of Mexico, staying offshore, and dissipated on September 13 while off the west coast of the Baja California. The lowest pressure reported by a ship was 29.31inHg.
A short-lived tropical cyclone existed between Salina Cruz and Acapulco on September 11. Ships reported gales and a pressure of 29.65inHg.
On September 24 and September 25, a ship encounted stormy weather and gales. These were probably caused by a tropical cyclone located west of the Revillagigedo Islands.
On October 9, a ship encountered a tropical cyclone. It reported gales, and recorded a pressure of 29.43inHg.[86]
On October 22, a tropical cyclone existed. It had gales, and a ship measured a central pressure of 29.31inHg.[86]
On June 12, a hurricane was detected. The lowest pressure reported by a ship was 29.10 inches of mercury (98.5 kPa). The hurricane was last seen June 13.[87]
A possible tropical cyclone was located off the coast of Mexico on June 27. A ship reported a gale and a pressure of 29.72 inches of mercury (100.6 kPa). The system was last seen on June 28.[87]
On July 19, a tropical cyclone was detected. A ship reported a pressure of 1,000.7 hectopascals (14.514 psi).[88]
On July 29, a tropical cyclone was located midway between Manzanillo and Acapulco. It moved up the coast, and a ship reported a pressure of 1,000 millibars (1,000 hPa) on July 29 as the cyclone made landfall in the vicinity of Manzanillo.[88]
A small tropical cyclone was detected on August 31. A ship reported gales and a pressure of 1,003.3 millibars (1,003.3 hPa).[89]
From September 4 through September 7, the remnants of a hurricane brought heavy rain to Southern California. Blythe, California, got over a year worth of rain, and Imperial, California, got more than two years' worth.[38] The flooding caused much damage in Mecca, California, and 3 feet (0.91 m) of water swamped Thermal, California.[36] It is not known whether the tropical cyclone that caused these rains is the same system as that detected on August 31.
A tropical cyclone was first detected south of Acapulco on September 5. It intensified into a hurricane and moved northwestward. A ship sailing through the eye reported an off-the-scale pressure reading of 948.2 hectopascals (13.752 psi), its barometer's lowest setting.[90] Remnants of this tropical storm, in association with a trough, caused rain of up to 4 inches (100 mm) in southern California on September 11 and September 12.[38]
On September 5, a tropical cyclone formed off the coast of Costa Rica. It also headed northwest and dissipated over the southern part of Baja California on September 15. The lowest reported pressure was 1,004.1 millibars (1,004.1 hPa).[90] From September 19 to September 21, remnants of this tropical cyclone caused rain measuring up to in Southern California.[38]
On September 14, a tropical cyclone formed off the coast of Central America. This tropical storm tracked northwestward and intensified into a hurricane[36]. The sea-level pressure dropped to 971 millibars (971 hPa) (measured) or lower. The hurricane recurved gradually to the northeast and weakened over cool seas. On September 25, this tropical storm made landfall near Long Beach, California, and dissipated inland.[90]
This tropical storm caught Southern Californians unprepared.[36] It brought heavy rain and flooding to the area, which killed 45 people.[90] At sea, 48 were killed. This storm caused heavy property damage amounting to $2 million dollars (1939 USD) in total, mostly to crops and coastal infrastructure.[36]
On October 23, a tropical cyclone formed south of Cabo Corrientes. It intensified and headed roughly due north. A steamer, the Nevadan, caught in the eye of this extremely powerful, very intense hurricane, recorded a (corrected) central pressure of 27.45 inches of mercury (93.0 kPa).[91] Even with modern tropical cyclone observation techniques available, this reading still qualifies this cyclone as one of the most intense on record; the next hurricane in the modern record known to have a lower measured minimum central pressure is Hurricane Ava (1973).[8] Besides battering the Nevadan, this hurricane also disrupted shipping. It made landfall near Cabo Corrientes on October 25 and dissipated shortly thereafter.[92] The hurricane onshore caused heavy damage to crops, lines of communication, and several coastal towns.[92]
Late on June 17, west-northwest of Acapulco and close to the coast of Mexico, an area of thunderstorms formed into a tropical cyclone. The system was very small, and eventually became a hurricane. It headed west-northwest or northwest, and was last detected early on June 18. A ship in the eye measured a pressure of 979.0mbar.[93]
On July 20, a tropical depression was observed southwest of Acapulco. It intensified into a tropical storm, tracked northwest, and dissipated on July 24. The lowest pressure reported by a ship was 1006.6mbar.[94]
On July 29, a tropical cyclone was noticed. It traveled west-northwest or northwest, and dissipated sometime after July 30. A ship reported a pressure of 969.5mbar.[94]
South of Acapulco, a tropical cyclone was spotted on August 3. It rapidly tracked to the west-northwest, and was last seen on August 5. A ship reported a pressure of 1005.4mbar.[95]
On September 4, a tropical cyclone was reported. It moved westward, and was lost track of on or after September 5. The lowest reported pressure was 1003.1mbar.[96]
A tropical cyclone was detected on September 22. The next day, it had intensified into a hurricane. By September 24, the hurricane was close to the Revillagigedo Islands. After that, no further observations were reported. A ship reported a pressure of 983.4mbar in association with this hurricane.[96]
A tropical cyclone existed well out to sea from October 6 to 11. It traveled northwesterly, and had a lowest recorded pressure of 29.25inHg.[97]
Around October 21, a former typhoon that had previously impacted Wake Island crossed into the central north Pacific. It headed eastwards north of Midway Island. It gradually wheeled around to the southwest. It dissipated just east of Midway around October 22.[97]
Another tropical cyclone existed from October 26 to 28 off the coast of Central America. A ship recorded a pressure reading of 982.7mbar.[97]
A tropical cyclone well southwest of Manzanillo was tracked from November 1 to 3. Due to a blocking area of high pressure, it took an unusual southwesterly track. It's lowest recorded pressure was 1004.7mbar.[98]
On July 3, a tropical cyclone was spotted, and a pressure of 995.5mbar was reported. It possibly headed northeast, towards Cape Corrientes, as a tropical cyclone was spotted in that direction on July 6. However, it is possible that these observations were actually of two different tropical cyclones.[99]
A tropical cyclone was spotted on July 15, south of Mexico. The next day, another cyclone was spotted further to the west. On July 18, weather possibly associated with a tropical cyclone was reported south of Cabo San Lucas. It is unknown whether either one of these two latter observations are of the same system as reported on July 15.[99]
On July 21, a possible tropical cyclone was detected.[99]
On August 16, a tropical cyclone formed well off the coast of Mexico. It tracked generally northwest, and dissipated in the central Pacific north-northeast of the Hawaiian Islands on August 24. The lowest pressure reported by a ship was 29.34inHg.[100]
A tropical cyclone was first reported on September 8. It slowly moved northwestward, entered the Gulf of California, and dissipated September 12. Its lowest reported pressure was 1001.4mbar. Its winds were measured at 85 mph.[101]
This tropical storm brought winds and heavy rain to the southern tip of the Baja California Peninsula. The wind destroyed poorer sections of La Paz and nearby villages. Two villages, Santiago and Triunfo, were completely destroyed. The torrential rains damaged roads and left thousands homeless. Fifteen people were killed, and many were injured.[101]
A storm was first spotted September 17, and another was reported nearby the next day. These two systems then merged. The combined tropical cyclone subsequently became a very intense hurricane on September 19. That day, a ship passing through the eye reported a rapidly-falling pressure that bottomed out at 27.67inHg. The hurricane then weakened, and entered the Gulf of California on September 20, at which point it was lost track of.[101]
Moisture from a hurricane passed into the southwestern United States, where it caused rain of up to 1 inch in the mountains and deserts of California.[38] It is not known which of the two previous tropical cyclones were responsible for the rain.
A tropical storm was reported on November 2 and 4. A ship reported a pressure of 1000.7mbar.[102]
Another tropical storm was detected on November 3. It was reportedly very small. A ship reported a pressure of 1004.4. This cyclone was unusually close to the equator, at latitude 7°30′.[102]
There are no known tropical cyclones.
A disturbance developed between the Revillagigedo Islands and the Marias Islands on October 8. It moved rapidly northeastward where it rapidly intensified, reaching pressures as low as 958.6mbar. On October 9, as a major hurricane it struck the west coast of Mexico, a short distance south of Mazatlán. The next day, the hurricane dissipated inland.[103]
This hurricane caused damage in and around Mazatlán. It sank several vessels. The total cost of damage was $4,500,000 (1943 US dollars), and at least 106 people were killed.[103]
A tropical storm that was a continuation of Atlantic Hurricane 8 crossed into the Gulf of Tehuantepec from the Gulf of Mexico, entering the Pacific on September 22.[104]
A hurricane dissipated off the northern coast of the Baja California Peninsula. Its remnants moved northeast, and they brought rain to California on September 9 and September 10.[38]
A tropical depression, a continuation of Atlantic Hurricane 10, entered the Pacific Ocean on October 5.[105] A circulation center associated with this cyclone moved along the Mexican coast, and remained recognizable until it was west of Acapulco. It caused heavy rain along its path.[106]
A hurricane made landfall on the northern Baja California Peninsula. It dissipated over northern Baja California. Its remnants headed north, where they brought rain to the mountains of southern and central California on September 30 and October 1.[38]
There are no known tropical cyclones.
There are no known tropical cyclones.
This is the first Pacific hurricane season in the modern record. Seven tropical cyclones formed.[30][8] One of them, a hurricane, made landfall on the Baja California Peninsula on September 11,[8] Another tropical storm hit Central America in late September. It crossed into the Gulf of Mexico and eventually made landfall in Texas,[30] where it killed two people and caused millions in damage, especially to crops.[107]
