Tag Archives: Baja California

Tropical Storm Ramon Forms South of Mexico

Tropical Storm Ramon formed south of Mexico on Wednesday morning.  At 11:00 p.m. EDT on Wednesday the center of Tropical Storm Ramon was located at latitude 14.9°N and longitude 96.5°W which put it about 55 miles (90 km) south of Puerto Angel, Mexico.  Ramon was moving toward the west-northwest at 7 m.p.h. (11 km/h).  The maximum sustained wind speed was 45 m.p.h. (75 km/h) and there were wind gusts to 60 m.p.h. (95 km/h).  The minimum surface pressure was 1002 mb.

The government of Mexico has issued a Tropical Storm Watch that is in effect for the portion of the coast from Puerto Angel to Acapulco.

The circulation of Tropical Storm Ramon is not well organized.  The distribution of thunderstorms is asymmetrical.  Most of the showers and thunderstorms are occurring in the western half of the circulation.  A large upper level ridge centered over the Western Gulf of Mexico is producing easterly winds which are blowing toward the top of the circulation.  Those winds are generating significant vertical wind shear and the shear is probably the reason for the asymmetrical distribution of thunderstorms.

Tropical Storm Ramon will move through an environment that will be mostly unfavorable for intensification.  Ramon will move over water where the Sea Surface Temperature is near 30°C.  So, there is enough energy in the upper ocean to support intensification.  However, the upper level ridge will continue to cause significant vertical wind shear, which will inhibit strengthening.  In addition Tropical Storm Ramon will move close to the coast of Mexico and interaction with land will further inhibit intensification.  If Tropical Storm Ramon survives the strong shear until it moves farther away from Mexico, then it might strengthen.  If Ramon moves closer to the coast or inland, then it is likely to weaken quickly.

Tropical Storm Ramon is moving south of a ridge which is steering it toward the west-northwest and that motion is expected to continue for the next day or two.  On its anticipated track, the center of Tropical Storm Ramon could pass very close to the coast of Mexico, which is why the Tropical Storm Watch was issued.  Even if the center of Ramon remains south of the coast, the northern part of the circulation could produce locally heavy rain and the potential for flash floods exists.

Tropical Storm Norma Drifts Near Baja California, Otis Rapidly Intensifies to Cat. 2 Hurricane

Tropical Storm Norma drifted near Baja California on Sunday, while Hurricane Otis rapidly strengthened into a Category 2 hurricane on the Saffir-Simpson Scale.  At 8:00 p.m. EDT on Sunday the center of Tropical Storm Norma was located at latitude 21.3°N and longitude 111.2°W which put it about 140 miles (220 km) south-southwest of Cabo San Lucas, Mexico.  Norma was moving toward the northwest at 6 m.p.h. (9 km/h).  The maximum sustained wind speed was 50 m.p.h. (80 km/h) and there were wind gusts to 65 m.p.h. (105 km/h).  The minimum surface pressure was 1001 mb.

A Tropical Storm Watch was in effect for the portion of the coast from Los Barriles to Todos Santos, Mexico.

Tropical Storm Norma retains some of the structural features that it had when it was a hurricane.  The remnants of a large circular eye form the center of circulation.  A broken ring of strong thunderstorms surrounds the remnants of the eye and the strongest winds are occurring in that ring.  Bands of showers and weaker thunderstorms are revolving around the core of Tropical Storm Norma.  Some of the outer rainbands of Norma are already dropping heavy rain over parts of the southern end of Baja California.

Tropical Storm Norma will move through an environment that will be only marginally favorable for intensification during the next day or so.  Norma will move over water where the Sea Surface Temperature is near 28°C.  An upper level trough west of North America is producing southwesterly winds which are blowing toward the top of the circulation.  Those winds are causing moderate vertical wind shear.  The circulation of Norma may also be drawing some cooler more stable air into the western part of the tropical storm.  Tropical Storm Norma could intensify somewhat during the next 24 hours, but it will eventually move over cooler water and weaken.

A ridge in the middle troposphere located east of Norma is steering the tropical storm toward the northwest and that general motion is expected to continue for another day or so.  When Norma weakens, it will be steered by the winds in the lower levels of the atmosphere.  Those winds will push Tropical Storm Norma more toward the west during the middle of the weak.  On its anticipated track the center of Tropical Storm Norma is forecast to remain west of Baja California.

Hurricane Otis intensified very rapidly on Sunday from a weak tropical storm to a Category 2 hurricane on the Saffir-Simpson Scale.  At 5:00 p.m. EDT on Sunday the center of Hurricane Otis was located at latitude 17.0°N and longitude 127.3°W which put it about 1200 miles (1930 km) west-southwest of the southern tip of Baja California.  Otis was moving toward the north at 5 m.p.h. (8 km/h).  The maximum sustained wind speed was 105 m.p.h. (165 km/h) and there were wind gusts to 125 m.p.h. (200 km/h).  The minimum surface pressure was 973 mb.

Hurricane Otis has a very small circulation, which allowed to strengthen very rapidly when the environment became more favorable.  A small eye formed at the center of Hurricane Otis and a tight ring of very strong thunderstorms surrounded the eye.  Those storms began generating upper level divergence which pumped mass away from the center of circulation.  The pressure decreased quickly and the wind speed increased very rapidly.  Hurricane Otis still has a small circulation.  Winds to tropical storm force only extend out about 70 miles (110 km) from the center.

Hurricane Otis may be near its peak intensity.  Otis is still moving over water where the Sea Surface Temperature is near 27°C, but it will soon move over cooler water.  Hurricane Otis will move nearer to the upper level trough west of North America and the hurricane will encounter stronger vertical wind shear.  Because Otis is a small hurricane, it could weaken almost as fast as it intensified.

A small midlevel ridge east of Otis is steering the hurricane toward the north.  Much like Tropical Storm Norma, Otis will be steered by winds lower in the atmosphere when it weakens.  Those winds are forecast to steer Otis more toward the west-southwest later this week.

Max Rapidly Intensifies Into a Hurricane Near Acapulco

Tropical Storm Max intensified rapidly into a hurricane on Thursday morning.  At 11:00 a.m. EDT on Thursday the center of Hurricane Max was located at latitude 16.3°N and longitude 99.9°W which put it about 40 miles (65 km/h) south of Acapulco, Mexico.  Max was moving toward the east at 7 m.p.h. (11 km/h).  The maximum sustained wind speed was 80 m.p.h. (130 km/h) and there were wind gusts to 95 m.p.h. (155 km/h).  The minimum surface pressure was 988 mb.

A Hurricane Warning was in effect for the portion of the coast from Zihuatenajo to Punta Maldonado, Mexico.  A Tropical Storm Warning was in effect for the portion of the coast from Punta Maldonado to Laguas de Chacahua, Mexico.

The circulation of Hurriane Max is quite small.  Winds to hurricane force only extend out about 15 miles (25 km) from the center of circulation.  Winds to tropical storm force extend out about 50 miles (80 km) from the center.  Although the circulation of Hurricane Max is small, it is very well organized.  There is a small circular eye at the center of circulation.  The eye is surrounded by a ring of strong thunderstorms and the strongest winds are occurring in that ring of storms.

The center of Hurricane Max is very close to the coast of Mexico.  The outer fringes of the northwestern part of the circulation could already be pulling in some drier air.  Max will make landfall on the coast of Mexico within a few hours and it will start to dissipate as soon as the center make landfall.

The core of Hurricane Max will be capable of causing localized wind damage.  Max will also drop very heavy rain over parts of the states or Guerrero and Oaxaca and flash floods could occur in some areas of steeper terrain.

Elsewhere over the Eastern North Pacific Ocean, Tropical Storm Norma formed to the west of Hurricane Max.  At 11:00 a.m. EDT on Thursday the center of Tropical Storm Norma was located at latitude 17.2°N and longitude 109.5°W which put it about 395 miles (635 km) south of Cabo San Lucas, Mexico.  Norma was moving toward the north at 5 m.p.h. (8 km/h).  The maximum sustained wind speed was 40 m.p.h. (65 km/h) and there were wind gusts to 50 m.p.h. (80 km/h).  The minimum surface pressure was 1004 mb.  Tropical Storm Norma is forecast to strengthen and move toward Baja California.  Normal could be a hurricane when it approaches southern Baja California in a few days.

Tropical Storm Lidia Weakens, Still Raining on Baja California

Tropical Storm Lidia has weakened but it is producing rain over Baja California.  At 2:00 p.m. EDT on Saturday the center of Tropical Storm Lidia was located at latitude 28.3°N and longitude 114.6°W which put it about 40 miles (65 km) northeast of Punta Eugenia, Mexico.  Lidia was moving toward the northwest at 12 m.p.h. (19 km/h).  The maximum sustained wind speed was 40 m.p.h. (65 km/h) and there were wind gusts to 50 m.p.h. (80 km/h).  The minimum surface pressure was 999 mb.

A Tropical Storm Warning is in effect for the portion of the coast from Punta Abreojos to San Jose de Las Palomas, from Mulege to Isla San Luis and from Guaymas to Puerto Libertad, Mexico.

Tropical Storm Lidia weakened during the past 24 hours as it slowly moved northwest over Baja California.  There are some indications that the upper portion of the circulation may have decoupled from the lower half of Tropical Storm Lidia.  The upper portion of the circulation appears to be over the Gulf of California.  There are stronger thunderstorms over the Gulf of California because the Sea Surface Temperature is near 32°C in that body of water.  Those thunderstorms are producing heavy rain over parts of the eastern side of Baja California and the western part of Mexico adjacent to the Gulf of California.  The lower level center appears to be located northeast of Punta Eugenia over the Pacific Ocean just west of Baja California.  There are showers and thunderstorms near the low level center and they are dropping heavy rain in that area.  The potential for flash floods still exists in the areas where heavy rain is falling.

The low level center of Tropical Storm Lidia is forecast to continue to move toward the northwest.  Lidia will continue to weaken because the low level center is moving over water where the Sea Surface Temperature is near 23°C.  It will take several more days for the low level center to spin down and it could still produce locally heavy rain over the northern part of Baja California during that time.  The upper level portion of the circulation will likely be absorbed by the larger scale environmental flow in those levels.  Some clouds and moisture in the upper levels could flow over the southwestern U.S.

Tropical Storm Lidia Brings Wind and Heavy Rain to Baja California

Tropical Storm Lidia brought gusty winds and very heavy rain to Baja California on Thursday night.  At 11:00 p.m. EDT on Thursday the center of Tropical Storm Lidia was located at latitude 23.3°N and longitude 110.4°W which put it about 40 miles (65 km) northwest of Cabo San Lucas, Mexico.  Lidia was moving toward the north-northwest at 4 m.p.h. (6 km/h).  The maximum sustained wind speed was 65 m.p.h. (105 km/h) and there were wind gusts to 80 m.p.h. (130 km/h).  The minimum surface pressure was 991 mb.

A Hurricane Watch was in effect for the portion of the coast from Puerto Cortes to La Paz, Mexico including Cabo San Lucas.  A Tropical Storm Warning was in effect for the portion of the coast from Punta Eugenia to Bahia San Juan Bautista including Cabo San Lucas and from Bahia Tempehuaya to Bahia Kino.  A Tropical Storm Watch was in effect for the portion of the coast from Punta Eugenia to San Juan de Las Palomas and from Bahia San Juan Bautista to Isla San Luis and from Bahia Kino to Puerto Libertad.

Tropical Storm Lidia intensified as it approached the southern tip of Baja California on Thursday.  Several bands of showers and thunderstorms wrapped around the center of circulation and a partial eyewall appeared to form.  The airport at Cabo San Lucas reported sustained winds of 58 m.p.h. (83 km/h) and a Mexican automated station reported a sustained wind of 70 m.p.h. (113 km/h) and gusts to 90 m.p.h. (145 km/h) at a height of 735 feet (244 meters).  Tropical Storm Lidia has a large circulation.  Winds to tropical storm force extend out about 185 miles (295 km) from the center of circulation.

The large size of Tropical Storm Lidia meant that it was bringing tropical storm winds to the southern part of Baja California and parts of the west coast of Mexico.  Lidia was also producing very heavy rain over Baja California.  Flash floods are likely in places where steep terrain causes water to run off quickly.

Tropical Storm Lidia is forecast to move slowly north-northwest over Baja California.  The slow motion will prolong the period of gusty winds.  It will also cause the rain totals to be higher and increase the risk for floods.  Much of the circulation will remain over water and the large size of Lidia will mean that the tropical storm will weaken slowly.

Tropical Storm Lidia Threatens Baja California

Tropical Storm Lidia became an increased threat to Baja California as it moved closer on Wednesday night.  At 11:00 p.m. EDT on Wednesday the center of Tropical Storm Lidia was located at latitude 20.7°N and longitude 109.2°W which put it about 160 miles (255 km) south-southeast of the southern tip of Baja California.  Lidia was moving toward the north-northwest at 7 m.p.h. (11 km/h).  The maximum sustained wind speed was 40 m.p.h. (65 km/h) and there were wind gusts to 50 m.p.h. (80 km/h).  The minimum surface pressure was 1001 mb.

A Hurricane Watch is in effect for the portion of the coast from Puerto Cortes to La Paz, Mexico including Cabo San Lucas.  A Tropical Storm Warning is in effect for the portion of the coast from Puerto Cortes to San Evaristo including Cabo San Lucas and from Tempehuaya to Huatabampito, Mexico.  A Tropical Storm Watch is in effect for the portion of the coast from San Evaristo to Loreto, Mexico and from Puerto Cortes to Puerto Andresito.

A distinct center of circulation began consolidating in a large area of low pressure previously designated Potential Tropical Cyclone Fourteen-E on Wednesday.  Numerous bands of showers and thunderstorms started developing around the consolidating center.  There were more showers and thunderstorms in the southern half of the circulation than there were in the northern half of the circulation.  Thunderstorms southwest of the center of circulation were beginning to generate some upper level divergence, but it was not well developed.  Tropical Storm Lidia formed out of a large low pressure system and it still has a large circulation.  Winds to tropical storm force extend out about 120 miles (195 km) from the center on the eastern side of Lidia.

Tropical Storm Lidia was in an environment that was marginally favorable for intensification on Wednesday.  Lidia was moving over water where the Sea Surface Temperature was near 30°C.  An upper level ridge to the east of Lidia was producing westerly winds which were causing moderate vertical wind shear, especially over the northern half of the circulation.  The environment around Tropical Storm Lidia is forecast to become a little more favorable for intensification on Thursday.  The upper level winds are forecast to become weaker, which would reduce the wind shear.  Lidia will still be moving over very warm water and it should intensify on Thursday.  The rate of intensification could increase as the core of the tropical storm becomes more organized.  There is a chance that Lidia could strengthen into a hurricane which is why there is a Hurricane Watch for part of Baja California.

Lidia is moving around the western end of a subtropical ridge, which is steering the tropical storm toward the north-northwest.  A general north-northwesterly motion is expected to continue for another day or two.  On its anticipated track the center of Tropical Storm Lidia could reach the southern tip of Baja California by Thursday evening.  In addition to gusty winds Tropical Storm Lidia will produce very heavy rain.  Heavy rain falling on the steep terrain of Baja California creates the risk of flash floods.

Potential Tropical Cyclone Fourteen-E Prompts Hurricane Watch for Baja California

The National Hurricane Center is forecasting that a weather system currently designated as Potential Tropical Cyclone Fourteen-E will become a tropical storm and affect Baja California.  The government of Mexico has issued a Hurricane Watch and a Tropical Storm Warning for the portion of the coast from Todos Santo to Los Barriles including Cabo San Lucas.

At 5:00 p.m. EDT on Tuesday the center of Potential Tropical Cyclone Fourteen-E was located at latitude 17.2°N and longitude 107.2°W which put it about 430 miles (695 km) south-southeast of the southern tip of Baja California.  It was moving toward the northwest at 9 m.p.h. (15 km/h).  The maximum sustained wind speed was 30 m.p.h. (50 km/h) and there were wind gusts to 40 m.p.h. (65 km/h).  The minimum surface pressure was 1006 mb.

The circulation of Potential Tropical Cyclone Fourteen-E is in the early stages of organization.  There is a large counterclockwise circulation over the Eastern North Pacific Ocean west of Mexico.  Numerous showers and thunderstorms are forming within the circulation, but there is no well defined center of circulation.  There are fewer showers and thunderstorms in the eastern portion of the circulation.  An upper level ridge centered over Mexico is generating brisk easterly winds which are blowing over the top of the circulation.  Those winds are causing moderate vertical wind shear and the system has not yet begun to generate much upper level divergence.

Potential Tropical Cyclone Fourteen-E will move through an environment that will be somewhat favorable for intensification.  It will move over water where the Sea Surface Temperature is near 30°C.  So, there is plenty of energy in the upper ocean to support intensification.  The strength of the upper level winds is forecast to diminish and the wind shear is likely to decrease.  If the wind shear decreases, then the environment will become more favorable for intensification.  Intensification is likely to be slow while the circulation becomes more organized and develops a distinct low level center.  Potential Tropical Cyclone Fourteen-E could become a tropical storm on Wednesday.  It has a chance to intensify to a hurricane on Thursday.

Potential Tropical Cyclone Fourteen-E is moving around the western end of a subtropical ridge.  The ridge is steering the system toward the northwest and a general northwesterly motion is expected to continue for another day or two.  On its anticipated track the center of Potential Tropical Cyclone Fourteen-E could approach the southern part of Baja California by late on Thursday.  It could be a strong tropical storm or a hurricane at that time.  Locally heavy rain falling on the steep terrain of Baja California always creates a risk for flash floods.

Kenneth Rapidly Intensifies Into a Hurricane

One time Tropical Storm Kenneth rapidly intensified into a hurricane on Sunday.  At 5:00 p.m. EDT on Sunday the center of Hurricane Kenneth was located at latitude 16.2°N and longitude 128.4°W which put it about 1290 miles (2075 km) west-southwest of the southern tip of Baja California.  Kenneth was moving toward the west at 14 m.p.h. (22 km/h).  The maximum sustained wind speed was 90 m.p.h. (150 km/h) and there were wind gusts to 105 m.p.h. (170 km/h).  The minimum surface pressure was 980 mb.

The structure of Hurricane Kenneth improved significantly during the past few hours.  A small circular eye emerged at the center of circulation.  A ring of strong thunderstorms surrounded the eye and the strongest winds are occurring in this ring of thunderstorms.  Additional bands of showers and thunderstorms intensified south and east of the center.  Thunderstorms near the core of Kenneth were generating strong upper level divergence which was pumping mass away from the hurricane.

Hurricane Kenneth will continue to move through an environment favorable for intensification on Monday.  Kenneth will move over water where the Sea Surface Temperature (SST) is near 28.5°C.  Hurricane Kenneth is moving through a region where the winds in the upper levels are weak and there is not much vertical wind shear.  Hurricane Kenneth could continue to intensify for another 12 to 24 hours.  The speed of the upper level winds could increase in a day or so, and more vertical wind shear would inhibit intensification.  Eventually Hurricane Kenneth will move over cooler SSTs and start to weaken.

Kenneth if moving south of a subtropical ridge which is steering the hurricane toward the west.  The ridge is forecast to continue to steer Kenneth westward for another 12 to 24 hours.  Hurricane Kenneth will turn toward the north when it reaches the western end of the ridge.  On its anticipated track Hurricane Kenneth would pose no direct threat to land.

Tropical Storm Kenneth Develops Southwest of Baja California

Tropical Storm Kenneth developed southwest of Baja California on Friday.  At 11:00 p.m. EDT on Friday the center of Tropical Storm Kenneth was located at latitude 15.0°N and longitude 119.1°W which put it about 810 miles (1305 km) southwest of the southern tip of Baja California.  Kenneth was moving toward the west at 15 m.p.h. (24 km/h).  The maximum sustained wind speed was 40 m.p.h. (65 km/h) and there were wind gusts to 50 m.p.h. (80 km/h).  The minimum surface pressure was 1005 mb.

A distinct center of circulation developed in a tropical wave southwest of Baja California on Friday.  Thunderstorms began to form near the center and the National Hurricane Center designated the system as Tropical Storm Kenneth, which was the 11th named tropical storm to form over the Eastern North Pacific during 2017.

A cluster of thunderstorms formed near the core of Tropical Storm Kenneth on Friday.  Even after thunderstorms formed near the core, the circulation of Tropical Storm Kenneth was asymmetrical.  Bands of showers and thunderstorms developed in the western half of the circulation.  The bands in the eastern half of the circulation consisted primarily of showers and low clouds.  Thunderstorms near the core of Kenneth were generating upper level divergence which was pumping mass away to the west of the tropical storm.

Tropical Storm Kenneth will move through an environment that will be favorable for intensification during the next several days.  Kenneth will move over water where the Sea Surface Temperature is near 28.5°C.  An upper level ridge to the north of Tropical Storm Kenneth is producing easterly winds which are blowing toward the top of the circulation.  Those winds are producing moderate vertical wind shear which is probably the cause of the asymmetrical circulation of the tropical storm.  Even though there is moderate vertical wind shear, Tropical Storm Kenneth is likely to intensify and it could become a hurricane in a couple of days.

Tropical Storm Kenneth is begin steered toward the west by a subtropical ridge to the north of the tropical storm.  The subtropical ridge will continue to steer Tropical Storm Kenneth toward the west-northwest for another day or two.  When Tropical Storm Kenneth reaches the western end of the subtropical ridge, it will turn more toward the north.

Tropical Storm Jova Develops South of Baja California

A center of circulation developed within the remnants of former Hurricane Franklin on Friday and the National Hurricane Center designated the low pressure system as Tropical Storm Jova.  At 11:00 p.m. EDT on Friday the center of Tropical Storm Jova was located at latitude 19.3°N and longitude 109.8°W which put it 250 miles (400 km) south of the southern tip of Baja California.  Jova was moving toward the west-northwest at 14 m.p.h. (22 km/h).  The maximum sustained wind speed was 40 m.p.h. (65 km/h_ and there were wind gusts to 50 m.p.h. (80 km/h).  The minimum surface pressure was 1003 mb.

The surface center of former Hurricane Franklin was disrupted as it passed over the mountains in Mexico.  However, the middle and upper portions of the circulation crossed the mountains relatively intact.  When the upper parts of the former hurricane emerged over the Eastern North Pacific Ocean, it took nearly a day for the vertical transfer of kinetic energy to spin up a new surface circulation.  Eventually a new surface circulation developed and the National Hurricane Center (NHC) classified the system as Tropical Storm Jova.  Established protocol is that when NHC ceases issuing an advisories on a tropical cyclone, the system is given a new name if it redevelops in a different basin.

The circulation of Tropical Storm Jova is broad, but winds to tropical storm force are occurring primarily in the northeastern quadrant of the circulation.  Most of the thunderstorms are occurring in a band that wraps around the western and southern sides of the center of circulation.  There are fewer thunderstorms in the eastern and northern sides of Tropical Storm Jova,  There is a broad counterclockwise circulation and a distinct center, but the horizontal structure is not well organized.

Tropical Storm Jova will be moving through an environment favorable for intensification during the next 24 hours.  Jova will move over water where the Sea Surface Temperature is near 30°C.  An upper lever ridge over northern Mexico is producing easterly winds which are blowing toward the top of the tropical storm.  Those winds are generating vertical wind shear.  The shear is moderate and it will inhibit intensification.  Tropical Storm is likely to intensify during the next 24 hours, but the broad circulation and vertical wind shear will limit the intensification.  In a day or two Tropical Storm Jova will move over cooler Sea Surface Temperatures and it will start to weaken.

A ridge in the middle levels is steering Tropical Storm Jova toward the west-northwest.  The ridge is expected to steer Tropical Storm Jova toward the west during the next several days.  On its anticipated track Tropical Storm Jova will move farther west of Mexico.