Tag Archives: Manzanillo

Tropical Storm Beatriz Moves Along West Coast of Mexico

Tropical Storm Beatriz was moving along the west coast of Mexico on Saturday morning. At 8:00 a.m. EDT on Saturday the center of Tropical Storm Beatriz was located at latitude 19.8°N and longitude 105.4°W which put it about 45 miles (75 km) south-southeast of Cabo Corrientes, Mexico. Beatriz was moving toward the northwest at 13 m.p.h. (20 km/h). The maximum sustained wind speed was 60 m.p.h. (75 km/h) and there were wind gusts to 75 m.p.h. (120 km/h). The minimum surface pressure was 1001 mb.

Tropical Storm Warnings were in effect for the portions of the coast from Manzanillo to Punta Mita, Mexico. A Tropical Storm Watch was in effect for the portion of the coast from Punta Mita to San Blas, Mexico. A Tropical Storm Watch was also in effect for Las Islas Marias.

The center of former Hurricane Beatriz made a landfall near Punta San Telmo, Mexico during Friday night. When the center of Beatriz made landfall, it significantly disrupted the inner core of Beatriz’ circulation. The disruption of the inner core caused Beatriz to weaken to a tropical storm. The distribution of thunderstorms in Tropical Storm Beatriz became asymmetrical after if made landfall. Most of the thunderstorms were occurring in bands in the western half of Beatriz’ circulation. Bands in the eastern part of the tropical storm consisted primarily of showers and lower clouds. Winds to tropical storm force extended out 80 miles (130 km) from the center of Tropical Storm Beatriz.

Former Hurricane Beatriz brought gusty winds and locally heavy rain to the west coast of Mexico from Punta San Telmo to Cabo Corrientes during Friday night. The heaviest rain fell along the coast in Michoacan, Colima and Jalisco.

Tropical Storm Beatriz will move through an environment that will be only marginally favorable for intensification during the next 36 hours. Beatriz will move over water where the Sea Surface Temperatures are near 28˚C. It will move under the southern part of an upper level ridge over northern Mexico. The upper level ridge will produce easterly winds that will blow toward the top of Beatriz’ circulation. Those winds will cause the wind shear to increase. Since Tropical Storm Beatriz is near the west coast of Mexico, it’s circulation will pull drier air into the eastern and northern parts of Beatriz. The drier air will inhibit the formation of thunderstorms in those parts of the circulation. Since the inner core of Tropical Storm Beatriz was disrupted when it moved over the coast, Beatriz is likely to continue to weaken during the next 36 hours.

The upper level ridge over northern Mexico will steer Tropical Storm Beatriz toward the northwest during the next 36 hours. On its anticipated track, Tropical Storm Beatriz will gradually move away from the west coast of Mexico. The gusty winds and locally heavy rain in Jalisco will gradually diminish on Saturday. Beatriz could move southeast of Baja California on Sunday.

Elsewhere over the Eastern North Pacific Ocean, Hurricane Adrian weakened south of Baja California. At 5:00 a.m. EDT on Saturday the center of Hurricane Adrian was located at latitude 18.1°N and longitude 114.0°W which put it about 425 miles (685 km) southwest of the southern tip of Baja California. Adrian was moving toward the west-northwest 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. (150 km/h). The minimum surface pressure was 983 mb.

Beatriz Rapidly Intensifies to a Hurricane

Former Tropical Storm Beatriz rapidly intensified to a hurricane over the Eastern North Pacific Ocean south of Lazaro Cardenas, Mexico on Friday morning. At 11:00 a.m. EDT on Friday the center of Hurricane Beatriz was located at latitude 17.3°N and longitude 102.3°W which put it about 50 miles (80 km) south of Lazaro Cardenas, Mexico. Beatriz was moving toward the northwest at 13 m.p.h. (20 km/h). The maximum sustained wind speed was 75 m.p.h. (120 km/h) and there were wind gusts to 90 m.p.h. (145 km/h). The minimum surface pressure was 991 mb.

A Hurricane Warning was in effect for the portion of the coast from Zihuatenajo to Cabo Corrientes, Mexico. The Hurricane Warning included Manzanillo. A Hurricane Watch was in effect for the portion of the coast from Cabo Corrientes to Punta Mita, Mexico. Tropical Storm Warnings were in effect for the portions of the coast from Tecpan de Galeana to Zihuatenajo and from Cabo Corrientes to Punta Mita, Mexico. A Tropical Storm Watch was in effect for the portion of the coast from Punta Mita to San Blas, Mexico. A Tropical Storm Watch was also in effect for Las Islas Marias.

Former Tropical Storm Beatriz rapidly intensified to a hurricane on Friday morning. The inner end of a rainband wrapped around the center of Beatriz’ circulation. Visible and microwave satellite images showed that an eye was forming at the center of Hurricane Beatriz. Bands of showers and thunderstorms were revolving around the core of Beatriz. Storms near the core generated upper level divergence that pumped mass away from the hurricane.

The circulation around Hurricane Beatriz was small. Winds to hurricane force extended out 15 miles (25 km) in the northeastern quadrant of Beatriz’ circulation. Winds to tropical storm force extended out 70 miles (110 km) from the center of circulation.

Hurricane Beatriz will move through an environment favorable for intensification during the next 12 hours. Beatriz will move over water where the Sea Surface Temperatures are near 30˚C. It will move under the southwestern part of an upper level ridge over Mexico and the southern U.S. The upper level ridge will produce easterly winds that will blow toward the top of Hurricane Beatriz. However, the winds in the lower levels of the atmosphere will also blow from the east. So, there will be little vertical wind shear. Hurricane Beatriz is likely to intensify during the next 12 hours. Beatriz will be near the coast of Mexico on Saturday. If the core of Hurricane Beatriz remains over the Eastern North Pacific Ocean, then it will be in an environment favorable for intensification. If Beatriz moves over land on Saturday, it will weaken quickly.

The upper level ridge over Mexico and the southern U.S. will steer Hurricane Beatriz toward the northwest during the next 24 hours. On its anticipated track, Hurricane Beatriz will move very close to the coast of Mexico. The center of Beatriz could be near Manzanillo by Friday night. Beatriz could make landfall near Manzanillo or the center of circulation could pass just to the west of Manzanillo. Bands in the northern side of Hurricane Beatriz will bring strong winds and locally heavy rain to parts of the west coast of Mexico. Beatriz will bring strong winds and locally heavy rain to Guerrero, Michoacan, Colima and Jalisco. Heavy rain could cause flash floods in some locations.

Elsewhere over the Eastern North Pacific Ocean, Hurricane Adrian intensified south-southwest of Baja California. At 11:00 a.m. EDT on Friday the center of Hurricane Adrian was located at latitude 17.3°N and longitude 112.2°W which put it about 415 miles (665 km) south-southwest of the southern tip of Baja California. Adrian was moving toward the northwest at 7 m.p.h. (11 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 970 mb.

Tropical Storm Beatriz Develops Near Mexico

Tropical Storm Beatriz developed over the Eastern North Pacific Ocean near Mexico on Thursday afternoon. At 5:00 p.m. EDT on Thursday the center of Tropical Storm Beatriz was located at latitude 15.0°N and longitude 99.4°W which put it about 135 miles (220 km) south-southeast of Acapulco, Mexico. Beatriz was moving toward the west-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 1004 mb.

A Hurricane Warning was in effect for the portion of the coast from Zihuatenajo to Playa Perula, Mexico. The Hurricane Warning included Manzanillo. A Hurricane Watch was in effect for the portion of the coast from Playa Perula to Cabo Corrientes, Mexico. A Tropical Storm Warning was in effect for the portion of the coast from Punta Maldonado to Zihuatenajo, Mexico. The Tropical Storm Warning included Acapulco. A Tropical Storm Watch was in effect for the portion of the coast from Cabo Corrientes to Punta Mita, Mexico.

Former Tropical Depression Two-E strengthened to Tropical Storm Beatriz over the Eastern North Pacific Ocean near Mexico on Thursday afternoon. A distinct low level center of circulation was evident on visible satellite images of Tropical Storm Beatriz. Bands of showers and thunderstorms were revolving around the center of Beatriz’ circulation. Storm near the center of circulation generated upper level divergence that pumped mass away from the tropical storm. Winds to tropical storm force extended out 45 miles (75 km) in the northeastern quadrant of Tropical Storm Beatriz. The winds in the other parts of Beatriz’ circulation were blowing at less than tropical storm force.

Tropical Storm Beatriz will move through an environment favorable for intensification during the next 24 hours. Beatriz will move over water where the Sea Surface Temperatures are near 30˚C. It will move under the southwestern part of an upper level ridge over Mexico and the southern U.S. The upper level ridge will produce easterly winds that will blow toward the top of Tropical Storm Beatriz. However, the winds in the lower levels of the atmosphere will also blow from the east. So, there will be little vertical wind shear. Tropical Storm Beatriz will intensify during the next 24 hours. Beatriz could intensify rapidly at times. Tropical Storm Beatriz could strengthen to a hurricane during the next 24 hours.

The upper level ridge over Mexico and the southern U.S. will steer Tropical Storm Beatriz toward the northwest during the next 36 hours. On its anticipated track, Tropical Storm Beatriz will move closer to the coast of Mexico. The center of Beatriz could be near Manzanillo by Friday evening. Beatriz could be a hurricane when it gets near Manzanillo. Bands in the northern side of Tropical Storm Beatriz could bring gusty winds and locally heavy rain to parts of the west coast of Mexico. Locally heavy rain could fall in parts of Oaxaca and Guerrero. Strong winds and locally heavy rain could affect Michoacan, Colima and Jalisco. Heavy rain could cause flash floods in some locations.

Elsewhere over the Eastern North Pacific Ocean, Hurricane Adrian was churning south of Baja California. At 5:00 p.m. EDT on Thursday the center of Hurricane Adrian was located at latitude 16.4°N and longitude 110.7°W which put it about 450 miles (720 km) south of the southern tip of Baja California. Adrian was moving toward the west-northwest at 7 m.p.h. (11 km/h). The maximum sustained wind speed was 85 m.p.h. (135 km/h) and there were wind gusts to 100 m.p.h. (160 km/h). The minimum surface pressure was 980 mb.

Mexico Issues Tropical Storm Watches and Warnings

The government of Mexico issued Tropical Storm Watches and Tropical Storm Warnings for the west coast of Mexico on Wednesday night. A Tropical Storm Warning was in effect for the portion of the coast from Punta Maldonado to Lazaro Cardenas, Mexico. The Tropical Storm Warning included Acapulco. A Tropical Storm Watch was in effect for the portion of the coast from Lazaro Cardenas to Manzanillo, Mexico.

A low pressure system over the Eastern North Pacific Ocean is forecast to strengthen to a tropical storm during the next several days as it moves near the coast of Mexico. The low pressure system was designated as Potential Tropical Cyclone Two-E on Wednesday night. At 11:00 p.m. EDT on Wednesday the center of Potential Tropical Cyclone Two-E was located at latitude 13.5°N and longitude 96.8°W which put it about 315 miles (505 km) southeast of Acapulco, Mexico. It was moving toward the northwest at 12 m.p.h. (19 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 1007 mb.

A low pressure system over the Eastern North Pacific Ocean southeast of Acapulco exhibited more organization on Wednesday night. The U.S. National Hurricane Center designated the system as Potential Tropical Cyclone Two-E. More thunderstorms formed in bands in the eastern side of Potential Tropical Cyclone Two-E. Storms near the center of circulation began to generate upper level divergence that pumped mass away from the system. Removal of mass will allow the surface pressure to decrease.

Potential Tropical Cyclone Two-E will move through an environment favorable for intensification during the next 36 hours. It will move over water where the Sea Surface Temperatures are near 30˚C. It will move under the southwestern part of an upper level ridge over Mexico and the southern U.S. The upper level ridge will produce easterly winds that will blow toward the top of Potential Tropical Cyclone Two-E. However, the winds in the lower levels of the atmosphere will also blow from the east. So, there will be little vertical wind shear. Potential Tropical Cyclone Two-E is likely to intensify during the next 36 hours. It could strengthen to a tropical depression during the next 12 hours. Potential Tropical Cyclone Two-E could intensify to a tropical storm during the next 24 hours.

The upper level ridge over Mexico and the southern U.S. will steer Potential Tropical Cyclone Two-E toward the northwest during the next 36 hours. On its anticipated track, Potential Tropical Cyclone Two-E will move closer to the coast of Mexico. It could be south of Acapulco on Thursday. Bands in the northern side of Potential Tropical Cyclone Two-E could bring gusty winds and locally heavy rain to parts of the west coast of Mexico. Locally heavy rain could fall in parts of Oaxaca, Guerrero and Jalisco. Heavy rain could cause flash floods in some locations.

Elsewhere over the Eastern North Pacific Ocean, Hurricane Adrian was spinning southwest of Manzanillo. At 11:00 p.m. EDT on Wednesday the center of Hurricane Adrian was located at latitude 15.4°N and longitude 109.0°W which put it about 395 miles (640 km) southwest of Manzanillo, Mexico. Adrian was moving toward the west at 6 m.p.h. (10 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. (150 km/h). The minimum surface pressure was 986 mb.

Adrian Rapidly Intensifies to a Hurricane

Former Tropical Storm Adrian rapidly intensified to a hurricane over the Eastern North Pacific Ocean southwest of Manzanillo, Mexico on Wednesday morning. At 11:00 a.m. EDT on Wednesday the center of Hurricane Adrian was located at latitude 15.2°N and longitude 108.0°W which put it about 360 miles (575 km) southwest of Manzanillo, Mexico. Adrian was moving toward the west at 8 m.p.h. (13 km/h). The maximum sustained wind speed was 75 m.p.h. (120 km/h) and there were wind gusts to 90 m.p.h. (145 km/h). The minimum surface pressure was 989 mb.

Former Tropical Storm Adrian rapidly intensified to a hurricane on Wednesday morning. Microwave satellite images showed that a small circular eye had formed at the center of Adrian’s circulation. A ring of strong thunderstorms surrounded the eye and the strongest winds were occurring in that ring of storms. Bands of showers and thunderstorms were revolving around the core of Hurricane Adrian. Storms near the core of Adrian generated strong upper level divergence that pumped mass away from the hurricane.

The circulation around Hurricane Adrian was small. Winds to hurricane force extended out 15 miles (25 km) in the northeastern quadrant of Adrian’s circulation. Winds to tropical storm force extended out 60 miles (95 km) from the center of Hurricane Adrian.

Hurricane Adrian will move through an environment very favorable for intensification during the next 24 hours. Adrian will move over water where the Sea Surface Temperatures are near 28˚C. It will move through a region where the upper level winds are weak and there will be little vertical wind shear. Hurricane Adrian will intensify during the next 24 hours. Adrian could intensify rapidly at times.

Hurricane Adrian will move around the southern side of a high pressure system that extends from Mexico to over the Eastern North Pacific Ocean. The high pressure system will steer Adrian toward the west during the next 24 hours. On its anticipated track, Hurricane Adrian will move farther away from the west coast of Mexico.

Tropical Storm Adrian Forms Southwest of Mexico

Tropical Storm Adrian formed over the Eastern North Pacific Ocean southwest of Mexico on Tuesday afternoon. At 5:00 p.m. EDT on Tuesday the center of Tropical Storm Adrian was located at latitude 15.3°N and longitude 106.0°W which put it about 280 miles (450 km) south-southwest of Manzanillo, Mexico. Adrian was moving toward the west at 15 m.p.h. (24 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 circulation around a low pressure system over the Eastern North Pacific Ocean southwest of Mexico organized quickly during Tuesday and the U.S. National Hurricane Center designated the system as Tropical Storm Adrian. A well defined low level center of circulation developed at the center of the low pressure system. Thunderstorms formed rapidly neat the center of Adrian’s circulation. Many other thunderstorms formed in bands revolving around the center of circulation. Storms near the center of Adrian began to generated upper level divergence that pumped mass away from the tropical storm. Winds to tropical storm force extended out 45 miles (75 km) from the center of Tropical Storm Adrian.

Tropical Storm Adrian will move through an environment very favorable for intensification during the next 36 hours. Adrian will move over water where the Sea Surface Temperatures are near 28˚C. It will move through a region where the upper level winds are weak and there will be little vertical wind shear. Tropical Storm Adrian will intensify during the next 36 hours. Adrian could intensify rapidly at times. Tropical Storm Adrian could strengthen to a hurricane on Wednesday.

Tropical Storm Adrian will move around the southern side of a high pressure system that extends from Mexico to over the Eastern North Pacific Ocean. The high pressure system will steer Adrian toward the west during the next 36 hours. On its anticipated track, Tropical Storm Adrian will move farther away from the west coast of Mexico.

Hurricane Roslyn Hits West Coast of Mexico

Hurricane Roslyn hit the west coast of Mexico on Sunday morning. At 8:00 a.m. EDT on Sunday the center of Hurricane Roslyn was located at latitude 22.1°N and longitude 105.5°W which put it about 55 miles (90 km) northwest of Tepic, Mexico. Roslyn was moving toward the north-northeast at 16 m.p.h. (26 km/h). The maximum sustained wind speed was 120 m.p.h. (195 km/h) and there were wind gusts to 150 m.p.h. (240 km/h). The minimum surface pressure was 960 mb.

A Hurricane Warning was in effect for Las Islas Marias. A Hurricane Warning was also in effect for the portion of the coast from Playa Perula to Escuinapa, Mexico. The Hurricane Warning included Puerto Vallarta. A Hurricane Watch was in effect for the portion of the coast from Escuinapa to Mazatlan, Mexico. Tropical Storm Warnings were in effect for the portions of the coast from Manzanillo to Playa Perula, Mexico and from Escuinapa to Mazatlan, Mexico.

The center of Hurricane Roslyn made landfall on the west coast of Mexico north of San Blas on Sunday morning. Roslyn was a major hurricane at the time of landfall. Winds to hurricane force extended out 25 miles (40 km) from the center of Roslyn’s circulation. Winds to tropical storm force extended out 80 miles (130 km) from the center of circulation. The Hurricane Intensity Index (HII) was 22.1. The Hurricane Size Index (HSI) was 8.5 and the Hurricane Wind Intensity Size Index (HWISI) was 30.6. Hurricane Roslyn was capable of causing localized major damage.

An upper level trough west of Baja California and a high pressure system over Mexico will steer Hurricane Roslyn quickly toward the northeast on Sunday. Roslyn will bring strong winds and drop locally heavy rain over Nayarit. Strong winds are likely to cause damage and electricity outages. Hurricane Roslyn will weaken steadily as it moves inland over western Mexico. Even though it will weaken, Roslyn could also drop locally heavy rain over southern Durango. Heavy rain could cause flash floods in some parts of Nayarit and southern Durango.

Major Hurricane Roslyn Nears West Coast of Mexico

Major Hurricane Roslyn neared the west coast of Mexico on Saturday night. At 11:00 p.m. EDT on Saturday the center of Hurricane Roslyn was located at latitude 20.0°N and longitude 106.6°W which put it about 65 miles (105 km) west-southwest of Cabo Corrientes, Mexico. Roslyn was moving toward the north at 12 m.p.h. (19 km/h). The maximum sustained wind speed was 130 m.p.h. (210 km/h) and there were wind gusts to 160 m.p.h. (260 km/h). The minimum surface pressure was 954 mb.

A Hurricane Warning was in effect for Las Islas Marias. A Hurricane Warning was also in effect for the portion of the coast from Playa Perula to Escuinapa, Mexico. The Hurricane Warning included Puerto Vallarta. A Hurricane Watch was in effect for the portion of the coast from Escuinapa to Mazatlan, Mexico. Tropical Storm Warnings were in effect for the portions of the coast from Manzanillo to Playa Perula, Mexico and from Escuinapa to Mazatlan, Mexico.

Hurricane Roslyn was at Category 4 intensity on the Saffir-Simpson Scale as it approached the west coast of Mexico on Saturday night. A circular eye with a diameter of 10 miles (16 km) was at the center of Roslyn’s circulation. The eye was surrounded by a ring of strong thunderstorms and the strongest winds were occurring in that ring of storms. Bands of showers and thunderstorms were revolving around the core of Hurricane Roslyn. Storms near the core generated upper level divergence that pumped mass away from the hurricane.

The circulation around Hurricane Roslyn was small. Winds to hurricane force extended out 30 miles (50 km) from the center of Roslyn’s circulation. Winds to tropical storm force extended out 80 miles (130 km) from the center of circulation. The Hurricane Intensity Index (HII) was 25.1. The Hurricane Size Index (HSI) was 8.5 and the Hurricane Wind Intensity Size Index (HWISI) was 33.6. Hurricane Roslyn was capable of causing localized severe damage.

Hurricane Roslyn will into an environment that will become unfavorable for intensification during the next few hours. Roslyn will move over water where the Sea Surface Temperatures are near 29˚C. However, an upper level trough west of Baja California will produce southwesterly winds that will blow toward the top of Roslyn’s circulation. Those winds will cause the vertical wind shear to increase. Hurricane Roslyn could start to weaken when the wind shear increases.

The upper level trough west of Baja California will steer Hurricane Roslyn toward the northeast during Sunday. On its anticipated track Hurricane Roslyn will make landfall on the west coast of Mexico near San Blas on Sunday morning. Although Roslyn could weaken before it makes landfall, it is likely to still be a major hurricane when it reaches the west coast of Mexico. Roslyn will bring strong gusty winds and locally heavy rain to Nayarit. Heavy rain could cause flash floods in some locations. Hurricane Roslyn could cause a storm surge of up to 13 feet (4 meters) along the coast. Hurricane Roslyn will be capable of causing localized major damage.

Roslyn Rapidly Intensifies to a Major Hurricane

Hurricane Roslyn rapidly intensified to a major hurricane over the Eastern North Pacific Ocean near the west coast of Mexico during Friday night. At 8:00 a.m. EDT on Saturday the center of Hurricane Roslyn was located at latitude 17.6°N and longitude 106.3°W which put it about 200 miles (320 km) south-southwest of Cabo Corrientes, Mexico. Roslyn was moving toward the northwest at 7 m.p.h. (11 km/h). The maximum sustained wind speed was 120 m.p.h. (195 km/h) and there were wind gusts to 150 m.p.h. (240 km/h). The minimum surface pressure was 960 mb.

A Hurricane Warning was in effect for Las Islas Marias. A Hurricane Warning was also in effect for the portion of the coast from Playa Perula to El Roblito, Mexico. The Hurricane Warning included Puerto Vallarta. A Hurricane Watch was in effect for the portion of the coast from El Roblito to Mazatlan, Mexico. Tropical Storm Warnings were in effect for the portions of the coast from Manzanillo to Playa Perula, Mexico and from El Roblito to Mazatlan, Mexico.

Hurricane Roslyn rapidly intensified to a major hurricane during Friday night. A circular eye with a diameter of 12 miles (19 km) was at the center of Roslyn’s circulation. The eye was surrounded by a ring of strong thunderstorms and the strongest winds were occurring in that ring of storms. Bands of showers and thunderstorms were revolving around the core of Hurricane Roslyn. Storms near the core generated upper level divergence that pumped mass away from the hurricane.

The circulation around Hurricane Roslyn was small. Winds to hurricane force extended out 25 miles (40 km) from the center of Roslyn’s circulation. Winds to tropical storm force extended out 80 miles from the center of circulation. The Hurricane Intensity Index (HII) was 22.1. The Hurricane Size Index (HSI) was 7.0 and the Hurricane Wind Intensity Size Index (HWISI) was 29.1. Hurricane Roslyn was capable of causing localized major damage.

Hurricane Roslyn will move through an environment favorable for intensification during the next 12 hours. Roslyn will move over water where the Sea Surface Temperatures are near 29˚C. It will move under the axis on an upper level ridge over the Eastern North Pacific. The upper level winds are weak near the axis of the ridge and there will be little vertical wind shear. Hurricane Roslyn is likely to intensify during the next 12 hours. Roslyn could intensify rapidly for a few more hours. Hurricane Roslyn could strengthen to a Category 4 hurricane on the Saffir-Simpson Scale. An upper level trough west of Baja California will produce southwesterly winds on Saturday night that will blow toward the top of Roslyn’s circulation. Those winds will cause the wind shear to increase. Hurricane Roslyn could start to weaken when the wind shear increases.

Hurricane Roslyn will move around the western side of a surface high pressure system centered over northern Mexico during the next 12 hours. The high pressure system will steer Roslyn toward the north. The upper level trough west of Baja California will steer Hurricane Roslyn toward the northeast on Saturday night and Sunday. The center of Roslyn is likely to pass just to the west of Cabo Corrientes during Friday night. On its anticipated track Hurricane Roslyn could make landfall on the west coast of Mexico near San Blas on Sunday morning. Roslyn will bring strong gusty winds and locally heavy rain to Nayarit. Heavy rain could cause flash floods in some locations. Hurricane Roslyn could cause a storm surge of up to 13 feet (4 meters) along the coast. Hurricane Roslyn will be capable of causing localized major damage.

Roslyn Intensifies to a Hurricane; Mexico Issues Warnings

Former Tropical Storm Roslyn intensified to a hurricane over the Eastern North Pacific Ocean on Friday night and the government of Mexico issued Hurricane Warnings and Tropical Storm Warnings for portions of the coast. At 11:00 p.m. EDT on Friday the center of Hurricane Roslyn was located at latitude 16.7°N and longitude 105.6°W which put it about 255 miles (410 km) south of Cabo Corrientes, Mexico. Roslyn was moving toward the west-northwest at 7 m.p.h. (11 km/h). The maximum sustained wind speed was 85 m.p.h. (135 km/h) and there were wind gusts to 100 m.p.h. (160 km/h). The minimum surface pressure was 982 mb.

A Hurricane Warning was in effect for Las Islas Marias. A Hurricane Warning was also in effect for the portion of the coast from Playa Perula to El Roblito, Mexico. The Hurricane Warning included Puerto Vallarta. A Hurricane Watch was in effect for the portion of the coast from El Roblito to Mazatlan, Mexico. A Tropical Storm Warning was in effect for the portion of the coast from Manzanillo to Playa Perula, Mexico.

Former Tropical Storm Roslyn intensified to a hurricane on Friday night near the west coast of Mexico. A small circular eye formed at the center of Hurricane Roslyn’s circulation. The eye was surrounded by a ring of thunderstorms and the strongest winds were occurring in that ring of storms. Bands of showers and thunderstorms were revolving around the core of Hurricane Roslyn. Storm near the core generated upper level divergence that pumped mass away from the hurricane. The circulation around Hurricane Roslyn was small. Winds to hurricane force extended out 20 miles on the norther side of Roslyn’s circulation. Winds to tropical storm force extended out 70 miles from the center of circulation.

Hurricane Roslyn will move through an environment favorable for intensification during the next 24 hours. Roslyn will move over water where the Sea Surface Temperatures are near 29˚C. It will move under the axis on an upper level ridge over the Eastern North Pacific. The upper level winds are weak near the axis of the ridge and there will be little vertical wind shear. Hurricane Roslyn will intensify during the next 24 hours. Roslyn could intensify rapidly at times. Hurricane Roslyn could strengthen to a major hurricane.

Hurricane Roslyn will move around the western side of a surface high pressure system centered over northern Mexico on Saturday. The high pressure system will steer Roslyn toward the north on Saturday. An upper level trough west of Baja California will steer Hurricane Roslyn toward the northeast on Saturday night and Sunday. On its anticipated track Hurricane Roslyn could make landfall on the west coast of Mexico near San Blas on Sunday morning. Roslyn will bring strong gusty winds and locally heavy rain to the coast. Heavy rain could cause flash floods in some locations.