Tag Archives: Tropical Storm Genevieve

Genevieve Still a Tropical Storm

Tropical Storm Genevieve was still a tropical storm on Saturday evening as it approached the Central Pacific Ocean.  At 11:00 p.m. EDT on Saturday the center of Tropical Storm Genevieve was located at latitude 23.5°N and longitude 136.0°W which put the center about 1655 miles (2665 km) west of southern tip of Baja California.  Genevieve was moving toward the west-northwest at 14 m.p.h. (22 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.

Tropical Storm Genevieve continued to weaken gradually on Saturday as it moved over cooler water.  Thunderstorms were still occurring in bands in the northern side of Genevieve’s circulation.  Bands in the southern side of Tropical Storm Genevieve consisted primarily of showers and lower clouds.  Storms near the center of Genevieve still generated some upper level divergence that pumped mass away to the north of the tropical storm.  The removal of mass in the upper levels was less than the convergence of mass in the lower levels of the atmosphere.  So, the surface pressure increased gradually on Saturday.

The asymmetrical distribution of thunderstorms in Tropical Storm Genevieve caused the distribution of wind speeds also to be asymmetrical.  Winds to tropical storm force extended out 140 miles (220 km) in the northern half of Genevieve’s circulation.  Winds to tropical storm force only extended out 45 miles in the southern half of Tropical Storm Genevieve.

Tropical Storm Genevieve will move through an environment that will be unfavorable for intensification during the next 24 hours.  Genevieve will move over water where the Sea Surface Temperatures are near 23.5°C.  It will move under the eastern side of an upper level trough that is east of Hawaii.  The upper level trough will produce southwesterly winds that will blow toward the top of Genevieve’s circulation.  Those winds will cause the vertical wind shear to increase on Sunday.  Tropical Storm Genevieve will continue to weaken on Sunday because of the cooler water and more vertical wind shear.

Tropical Storm Genevieve will move around the southern part of a high pressure system that is over the Eastern North Pacific Ocean.  The high pressure system will steer Genevieve toward the west-northwest during the next 24 hours.  On its anticipated track, Tropical Storm Genevieve will move over the Central North Pacific Ocean on Sunday.  Genevieve should stay well to the northeast of Hawaii.

Tropical Storm Genevieve Churns West of Baja California

Tropical Storm Genevieve continued to churn over the Eastern North Pacific Ocean west of Baja California on Friday.  At 11:00 p.m. EDT on Friday the center of Tropical Storm Genevieve was located at latitude 22.6°N and longitude 131.4°W which put the center about 1370 miles (2200 km) west of southern tip of Baja California.  Genevieve was moving toward the west-northwest at 15 m.p.h. (24 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 1000 mb.

Tropical Storm Genevieve continued to weaken gradually on Friday as it moved over cooler water in the Eastern North Pacific Ocean west of Baja California.  Thunderstorms near the center of Genevieve’s circulation were not rising as high into the atmosphere.  Bands of showers and thunderstorms were still revolving around the center of Tropical Storm Genevieve.  Storms near the center of Genevieve generated less upper level divergence that pumped less mass away from the tropical Storm.  The removal of mass in the upper levels was less than the convergence of mass in the lower levels of the atmosphere.  So, the surface pressure increased gradually on Friday.

Winds to tropical storm force extended out 105 miles (165 km) from the center of Tropical Storm Genevieve.

Tropical Storm Genevieve will move through an environment that will be unfavorable for intensification during the next 24 hours.  Genevieve will move over water where the Sea Surface Temperatures are near 24.5°C.  It will move through a region where the upper level winds are weak and there will be little vertical wind shear.  Tropical Storm Genevieve will continue to weaken gradually on Saturday as it moves over cooler water.

Tropical Storm Genevieve will move around the southern part of a high pressure system that is over the Eastern North Pacific Ocean.  The high pressure system will steer Genevieve toward the west-northwest during the next 24 hours.  On its anticipated track, Tropical Storm Genevieve will continue to move farther away from Baja California.

Genevieve Weakens to a Tropical Storm

Former Hurricane Genevieve weakened to a tropical storm on Thursday evening.  At 11:00 p.m. EDT on Thursday the center of Tropical Storm Genevieve was located at latitude 21.3°N and longitude 126.0°W which put the center about 1035 miles (1665 km) west of southern tip of Baja California.  Genevieve was moving toward the west-northwest at 15 m.p.h. (24 km/h).  The maximum sustained wind speed was 70 m.p.h. (110 km/h) and there were wind gusts to 85 m.p.h. (135 km/h).  The minimum surface pressure was 989 mb.

Former Hurricane Genevieve continued to weaken gradually on Thursday as it moved over cooler water in the Eastern North Pacific Ocean west of Baja California.  Thunderstorms were still occurring near the center of Genevieve’s circulation.  Bands of showers and thunderstorms were revolving around the center of Tropical Storm Genevieve.  Storms near the center of Genevieve still generated upper level divergence that pumped mass away from the hurricane.  However, the removal of mass in the upper levels was less than the convergence of mass in the lower levels of the atmosphere.  So, the surface pressure continued to increase on Thursday.

Winds to tropical storm force extended out 125 miles (200 km) from the center of Tropical Storm Genevieve.

Tropical Storm Genevieve will move through an environment that will be unfavorable for intensification during the next 24 hours.  Genevieve will move over water where the Sea Surface Temperatures are near 24°C.  It will move through a region where the upper level winds are weak and there will be little vertical wind shear.  Tropical Storm Genevieve will continue to weaken on Friday as it moves over cooler water.

Tropical Storm Genevieve will move around the southwestern part of a high pressure system that is over the Southwest U.S.  The high pressure system will steer Genevieve toward the west-northwest during the next 24 hours.  On its anticipated track, Tropical Storm Genevieve will continue to move farther away from Baja California.

Tropical Storm Genevieve Spins Up Quickly South of Mexico

Tropical Storm Genevieve spun up quickly south of Mexico on Sunday.  At 5:00 p.m. EDT on Sunday the center of Tropical Storm Genevieve was located at latitude 12.2°N and longitude 99.2°W which put it about 410 miles (665 km) south-southeast of Zihuatanejo, Mexico.  Genevieve was moving toward the west-northwest at 20 m.p.h. (32 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 circulation around former Tropical Depression Twelve-E organized quickly on Sunday afternoon and the National Hurricane Center upgraded the system to Tropical Storm Genevieve.  More thunderstorms developed near the center of circulation.  Bands of showers and thunderstorms were revolving around the center of Genevieve.  Storms near the center were generating upper level divergence which was pumping mass away from the tropical storm.  Winds to tropical storm force extended out 100 miles (160 km) from the center of circulation.

Tropical Storm Genevieve will move through an environment very favorable for intensification during the next several days.  Genevieve will move over water where the Sea Surface Temperature is near 30°C.  It will move through a region where the upper level winds will be weak and there will be little vertical wind shear.  Tropical Storm Genevieve will intensify rapidly.  Genevieve will strengthen into a hurricane within 24 hours and it could intensify into a major hurricane during the next 48 hours.

Tropical Storm Genevieve will move around the southern side of a ridge of high pressure over the southwestern U.S. and northern Mexico.  The ridge will steer Genevieve toward the west-northwest.  On its anticipated track Tropical Storm Genevieve could pass south of the Baja California during the middle of the week.