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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.

Tropical Depression 19E Strengthens to Tropical Storm Roslyn

Former Tropical Depression Nineteen-E strengthened to Tropical Storm Roslyn over the Eastern North Pacific Ocean south of Mexico on Thursday afternoon. At 5:00 p.m. EDT on Thursday the center of Tropical Storm Roslyn was located at latitude 15.5°N and longitude 103.0°W which put it about 180 miles (295 km) south-southwest of Zihuatanejo, Mexico. Roslyn was moving toward the west 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 1004 mb.

The government of Mexico issued a Tropical Storm Watch for the portion of the coast from Manzanillo to Cabo Corrientes.

Tropical Storm Roslyn strengthened gradually on Thursday afternoon. The inner end of a rainband wrapped around the eastern side of the center of Roslyn’s circulation. Other bands of showers and thunderstorms were in the eastern half of Tropical Storm Roslyn. Bands in the western half of the circulation consisted primarily of showers and lower clouds. Storms near the center of Roslyn generated upper level divergence that pumped mass away from the tropical storm. Winds to tropical storm force extended out 60 miles (95 km) in the northeastern quadrant of Roslyn. The winds in the other parts of Roslyn’s circulation were blowing at less than tropical storm force.

Tropical Storm Roslyn will move through an environment favorable for intensification during the next 48 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. Tropical Storm Roslyn will strengthen during the next 48 hours. Roslyn could intensify to a hurricane by Friday night.

Tropical Storm Roslyn will move around the southwestern side of a surface high pressure system centered over northern Mexico. The high pressure system will steer Roslyn toward the west-northwest during the next 24 hours. On its anticipated track Tropical Storm Roslyn will move parallel to the southwest coast of Mexico during Friday. Roslyn will turn more toward the north when it reaches the western end of the high pressure system during the weekend. Roslyn could be west of Cabo Corrientes on Saturday night.