Tag Archives: San Blas

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.

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.

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.

Hurricane Orlene Makes Landfall Southeast of Mazatlan

Hurricane Orlene made landfall on the west coast of Mexico southeast of Mazatlan on Monday morning. At 11:00 a.m. EDT on Monday the center of Hurricane Orlene was located at latitude 22.9°N and longitude 105.7°W which put it about 50 miles (80 km) east-southeast of Mazatlan, Mexico. Orlene was moving toward the north-northeast at 10 m.p.h. (16 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.

A Hurricane Warning was in effect for the portion of the coast from San Blas to Mazatlan, Mexico. Tropical Storm Warnings were in effect for the portions of the coast from Punta Mita to San Blas and from Mazatlan to Bahia Tempehuaya, Mexico.

Hurricane Orlene made landfall on the west coast of Mexico southeast of Mazatlan near Teacapan on Monday morning. Orlene was a small hurricane at the time of landfall. Winds to hurricane force extended out 20 miles (30 km) from the center of Orlene’s circulation. Winds to tropical storm force extended out 90 miles (145 km) from the center of circulation.

Hurricane Orlene will weaken quickly as it moves inland. An upper level trough over northwestern Mexico will produce strong southwesterly winds that will blow toward the top of Orlene’s circulation. Those winds will cause strong vertical wind shear. The strong wind shear coupled with moving over land will cause Hurricane Orlene to weaken quickly.

Hurricane Orlene will bring strong, gusty winds and locally heavy rain to northern Nayarit and southern Sinaloa before it dissipates. Heavy rain could cause flash floods in some locations.

Hurricane Orlene Brings Wind and Rain to Las Islas Marias

Hurricane Orlene brought wind and rain to Las Islas Marias, Mexico on Sunday night. At 11:00 p.m. EDT on Sunday the center of Hurricane Orlene was located at latitude 21.4°N and longitude 106.5°W which put it about 10 miles (15 km) southwest of Las Islas Marias, Mexico. Orlene was moving toward the north-northeast at 8 m.p.h. (13 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 976 mb.

A Hurricane Warning was in effect for Las Islas Marias. A Hurricane Warning was in effect for the portion of the coast from San Blas to Mazatlan, Mexico. A Hurricane Watch was in effect for the portion of the coast from Playa Perula to San Blas, Mexico. A Hurricane Watch was in effect for the portion of the coast from Mazatlan to Bahia Tempehuaya, Mexico. A Tropical Storm Warning was in effect for the portion of the coast from Playa Perula to San Blas, Mexico. A Tropical Storm Watch was in effect for the portion of the coast from Manzanillo to Playa Perula, Mexico.

Hurricane Orlene weakened gradually on Sunday afternoon after it rapidly intensified to Category 4 on the Saffir-Simpson Scale earlier in the day. A circular eye with a diameter of 12 miles (19 km) was still present at the center of Hurricane Orlene. 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 core of Orlene’s circulation. Storms near the core generated upper level divergence that pumped mass away to the northeast of the hurricane.

The circulation around Hurricane Orlene was small. Winds to hurricane force extended out 20 miles (30 km) from the center of Orlene. Winds to tropical storm force extended out 80 miles (130 km) from the center of circulation. The Hurricane Intensity Index (HII) was 17.8. The Hurricane Size Index (HSI) was 6.8 and the Hurricane Wind Intensity Size Index (HWISI) was 24.6. Hurricane Orlene was capable of causing localized serious damage.

Hurricane Orlene will move through an environment unfavorable for intensification during the next 24 hours. Orlene will move over water where the Sea Surface Temperatures are near 29˚C. However, an upper level trough over northwestern Mexico will produce southwesterly winds that will blow toward the top of Orlene’s circulation. Those winds will cause the vertical wind shear to increase. Stronger vertical wind shear will cause Hurricane Orlene to continue to weaken during Monday.

Hurricane Orlene will move around the western end of a high pressure system over Mexico. The upper level trough over northwestern Mexico will steer Hurricane Orlene toward the north-northeast during Sunday night and Monday. Orlene will bring strong, gusty winds and locally heavy rain to Las Islas Marias. Locally heavy rain could cause flash floods in some locations. Hurricane Orlene could cause a storm surge of up to 10 feet (3 meters) in parts of Las Islas Marias. Orlene could cause serious damage in Las Islas Marias. On its anticipated track Hurricane Orlene is likely to make landfall on the west coast of Mexico between San Blas and Mazatlan on Monday afternoon. Orlene will bring strong gusty winds and locally heavy rain to the coast. Heavy rain could cause flash floods in parts of Nayarit and southern Sinaloa. Hurricane Orlene could produce storm surge of up to 7 feet (2 meters) along the coast.

Hurricane Orlene Rapidly Intensifies to Cat. 4

Hurricane Orlene rapidly intensified to Category 4 on the Saffir-Simpson Scale over the Eastern North Pacific Ocean southwest of Mexico on Saturday night. At 8:00 a.m. EDT on Sunday the center of Hurricane Orlene was located at latitude 19.3°N and longitude 106.8°W which put it about 105 miles (165 km) southwest of Cabo Corrientes, Mexico. Orlene was moving toward the north at 7 m.p.h. (11 km/h). The maximum sustained wind speed was 130 m.p.h. (210 km/h) and there were wind gusts to 150 m.p.h. (240 km/h). The minimum surface pressure was 949 mb.

A Hurricane Warning was in effect for Las Islas Marias. A Hurricane Warning was in effect for the portion of the coast from San Blas to Mazatlan, Mexico. A Hurricane Watch was in effect for the portion of the coast from Playa Perula to San Blas, Mexico. A Hurricane Watch was in effect for the portion of the coast from Mazatlan to Bahia Tempehuaya, Mexico. A Tropical Storm Warning was in effect for the portion of the coast from Playa Perula to San Blas, Mexico. A Tropical Storm Watch was in effect for the portion of the coast from Manzanillo to Playa Perula, Mexico.

Hurricane Orlene rapidly intensified to Category 4 during Saturday night. A circular eye with a diameter of 12 miles (19 km) was at the center of Hurricane Orlene. 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 core of Orlene’s circulation. Storms near the core generated strong upper level divergence that pumped mass away from the hurricane.

The circulation around Hurricane Orlene was small. Winds to hurricane force extended out 15 miles (25 km) from the center of Orlene. Winds to tropical storm force extended out 60 miles (95 km) from the center of circulation. The Hurricane Intensity Index (HII) was 25.1. The Hurricane Size Index (HSI) was 5.3 and the Hurricane Wind Intensity Size Index (HWISI) was 30.4. Hurricane Orlene was capable of causing localized severe damage.

Hurricane Orlene will move through an environment favorable for intensification during the next few hours. Orlene will move over water where the Sea Surface Temperatures are near 29˚C. Orlene will move through a region where the upper level winds are weak and there will be little vertical wind shear. Hurricane Orlene could intensify during the next few hours. An upper level trough over northwestern Mexico will produce southwesterly winds that will blow toward the top of Orlene’s circulation later on Sunday. Those winds will cause the vertical wind shear to increase. Hurricane Orlene is likely to weaken when the wind shear increases.

Hurricane Orlene will move around the western end of a high pressure system over Mexico. The high pressure system will steer Orlene toward the north during the next 12 hours. The upper level trough over northwestern Mexico will steer Hurricane Orlene toward the north-northeast on Sunday night and Monday. On its anticipated track, Hurricane Orlene will hit Las Islas Marias early on Monday morning. Orlene will bring strong, gusty winds and locally heavy rain to Las Islas Marias. Locally heavy rain could cause flash floods in some location. Hurricane Orlene could cuase major damage in Las Islas Marias. Orlene is likely to make landfall on the west coast of Mexico on Monday afternoon.

Hurricane Orlene Rapidly Intensifies to Cat. 2

Hurricane Orlene rapidly intensified to Category 2 on the Saffir-Simpson Scale over the Eastern North Pacific Ocean southwest of Mexico on Saturday night. At 11:00 p.m. EDT on Saturday the center of Hurricane Orlene was located at latitude 18.4°N and longitude 106.9°W which put it about 160 miles (255 km) south-southwest of Cabo Corrientes, Mexico. Orlene was moving toward the north at 5 m.p.h. (8 km/h). The maximum sustained wind speed was 110 m.p.h. (175 km/h) and there were wind gusts to 130 m.p.h. (210 km/h). The minimum surface pressure was 966 mb.

A Hurricane Warning was in effect for Las Islas Marias. A Hurricane Warning was in effect for the portion of the coast from San Blas to Mazatlan, Mexico. A Hurricane Watch was in effect for the portion of the coast from Playa Perula to San Blas, Mexico. A Hurricane Watch was in effect for the portion of the coast from Mazatlan to Bahia Tempehuaya, Mexico. A Tropical Storm Warning was in effect for the portion of the coast from Playa Perula to San Blas, Mexico. A Tropical Storm Watch was in effect for the portion of the coast from Manzanillo to Playa Perula, Mexico.

Hurricane Orlene rapidly intensified on Saturday night. A circular eye with a diameter of 13 miles (20 km) was at the center of Hurricane Orlene. 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 core of Orlene’s circulation. Storms near the core generated strong upper level divergence that pumped mass away from the hurricane.

The circulation around Hurricane Orlene was small. Winds to hurricane force extended out 15 miles (25 km) from the center of Orlene. Winds to tropical storm force extended out 60 miles (95 km) from the center of circulation. The Hurricane Intensity Index (HII) was 19.2. The Hurricane Size Index (HSI) was 5.3 and the Hurricane Wind Intensity Size Index (HWISI) was 24.5. Hurricane Orlene was capable of causing localized serious damage.

Hurricane Orlene will move through an environment favorable for intensification during the next 12 hours. Orlene will move over water where the Sea Surface Temperatures are near 29˚C. Orlene will move through a region where the upper level winds are weak and there will be little vertical wind shear. Hurricane Orlene is likely to intensify during the next 12 hours. Orlene could continue to intensify rapidly. Hurricane Orlene is likely to strengthen to a major hurrican by Sunday morning. An upper level trough over northwestern Mexico will produce southwesterly winds that will blow toward the top of Orlene’s circulation later on Sunday. Those winds will cause the vertical wind shear to increase. Hurricane Orlene is likely to weaken when the wind shear increases.

Hurricane Orlene will move around the western end of a high pressure system over Mexico. The high pressure system will steer Orlene toward the north during the next 18 hours. The upper level trough over northwestern Mexico will steer Hurricane Orlene toward the north-northeast on Sunday night and Monday. On its anticipated track, Hurricane Orlene will hit Las Islas Marias early on Monday morning. Orlene is likely to make landfall on the west coast of Mexico on Monday afternoon.

Orlene Strengthens to a Hurricane Southwest of Mexico

Former Tropical Storm Orlene strengthened to a hurricane over the Eastern North Pacific Ocean southwest of Mexico on Saturday morning. At 2:00 p.m. EDT on Saturday the center of Hurricane Orlene was located at latitude 17.8°N and longitude 107.0°W which put it about 200 miles (320 km) south-southwest of Cabo Corrientes, Mexico. Orlene was moving toward the north at 5 m.p.h. (8 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.

A Hurricane Warning was in effect for Las Islas Marias. A Hurricane Watch was in effect for the portion of the coast from San Blas to Bahia Tempehuaya, Mexico. A Tropical Storm Warning was in effect for the portion of the coast from Playa Perula to San Blas, Mexico. A Tropical Storm Watch was in effect for the portion of the coast from Manzanillo to Playa Perula, Mexico.

Former Tropical Storm Orlene strengthened to a hurricane on Saturday morning. A small eye formed at the center of Hurricane Orlene. 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 core of Orlene’s circulation. Storms near the core generated upper level divergence that pumped mass away from the hurricane.

The circulation around Hurricane Orlene was small. Winds to hurricane force extended out 15 miles (25 km) in the northeastern quadrant of Orlene. Winds to tropical storm force extended out 45 miles (75 km) from the center of circulation.

Hurricane Orlene will move through an environment favorable for intensification during the next 24 hours. Orlene will move over water where the Sea Surface Temperatures are near 29˚C. Orlene will move through a region where the upper level winds are weak and there will be little vertical wind shear. Hurricane Orlene will intensify during the next 24 hours. Orlene could intensify rapidly now that an inner core with an eye and an eyewall has formed. An upper level trough over northwestern Mexico will produce southwesterly winds that will blow toward the top of Orlene’s circulation later on Sunday. Those winds will cause the vertical wind shear to increase. Hurricane Orlene is likely to weaken when the wind shear increases.

Hurricane Orlene will move around the western end of a high pressure system over Mexico. The high pressure system will steer Orlene toward the north during the next 24 hours. The upper level trough over northwestern Mexico will steer Hurricane Orlene toward the north-northeast on Sunday night and Monday. On its anticipated track, Hurricane Orlene will hit Las Islas Marias early on Monday morning. Orlene is likely to make landfall on the west coast of Mexico on Monday afternoon.

Nora Strengthens to a Hurricane South of Mexico

Former Tropical Storm Nora strengthened to a hurricane south of Mexico early on Saturday. At 8:00 a.m. EDT on Saturday the center of Hurricane Nora was located at latitude 17.8°N and longitude 105.4°W which put it about 180 miles (290 km) south of Cabo Corrientes, Mexico. Nora was moving toward the north-northwest at 10 m.p.h. (16 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 983 mb.

A Hurricane Warning was in effect for the portion of the coast from Manzanillo to San Blas, Mexico. Hurricane Watches were in effect for the portions of the coast from Lazaro Cardenas to Manzanillo and from San Blas to Mazatlan, Mexico. Tropical Storm Warnings were in effect for the portions of the coast from Tecpan de Galeana to Manzanillo and from San Blas to Mazatlan, Mexico.

Former Tropical Storm Nora strengthened to a hurricane early on Saturday morning. Infrared and microwave satellite images showed that an eye was forming at the center of Nora. The eye was surrounded by a broken 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 Nora. Storms near the core generated upper level divergence that pumped mass away from the hurricane. Winds to hurricane force extended out 35 miles (55 km) in the northeast quadrant of Nora. Winds to tropical storm force extended out 200 miles (320 km) from the center of circulation.

Hurricane Nora will move through an environment favorable for intensification during the next 12 hours. Nora will move over water where the Sea Surface Temperatures are near 29°C. It will move through a region where the upper level winds are weak and there will be little vertical wind shear. Hurricane Nora could strengthen during the next 12 hours. Nora could pull drier air over Mexico into its circulation when it moves closer to the coast. The drier air could inhibit the formation of thunderstorms and Nora could start to weaken when the center gets close to the coast of Mexico.

Hurricane Nora will move around the western side of a high pressure system over Mexico. The high pressure system will steer Nora toward the north during the next 24 hours. On its anticipated track the center of Hurricane Nora could be very near Manzanillo on Saturday night. Nora will bring strong winds and heavy rain to the coast of Mexico. Heavy rain could cause flash floods in Colima, Jalisco and Guadalajara.