Tag Archives: EP13

Tropical Storm Mario Weakens

Tropical Storm Mario weakened on Monday night as it moved over the Eastern North Pacific Ocean west of Baja California.  At 5:00 a.m. EDT on Tuesday the center of Tropical Storm Mario was located at latitude 21.9°N and longitude 115.7°W which put the center about 375 miles (605 km) west of the southern tip of Baja California.  Mario was moving toward the northwest at 12 m.p.h. (19 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 Mario weakened on Monday night as it moved over cooler water west of Baja California.  Many of the thunderstorms in Tropical Storm Mario dissipated when Mario moved over the cooler water.  A few thunderstorms were still occurring near the center of Mario’s circulation.  Most of the bands revolving around the center of Tropical Storm Mario consisted primarily of showers and lower clouds.  Since the storms near the center of Mario were not generating much upper level divergence, the surface pressure was increasing.

The circulation around Tropical Storm Mario was still small.  Winds to tropical storm force extended out 45 miles (75 km) from the center of Mario’s circulation.

Tropical Storm Mario will move through an environment that will be unfavorable for intensification during the next 24 hours.  Mario will move over water where the Sea Surface Temperatures are near 24°C.  It will move under the southeastern part of an upper level trough that is near the west coast of the U.S.  The upper level trough will produce southerly winds that will blow toward the top of Mario’s circulation.  Those winds will cause moderate vertical wind shear.  The combination of moderate vertical wind shear and cooler Sea Surface Temperatures will cause Tropical Storm Mario to continue to weaken during the next 24 hours.

Tropical Storm Mario will move around the around the southwestern part of a high pressure system over the southwest U.S. and northwest Mexico.  The high pressure system will steer Mario toward the northwest during the next 24 hours.  On its anticipated track, Tropical Storm Mario will move west of Baja California.

Tropical Storm Mario Strengthens

Tropical Storm Mario strengthened during Sunday night as it moved over the Eastern North Pacific Ocean south of Baja California.  At 5:00 a.m. EDT on Monday the center of Tropical Storm Mario was located at latitude 19.4°N and longitude 112.3°W which put the center about 285 miles (460 km) south-southwest of the southern tip of Baja California.  Mario was moving toward the west-northwest at 12 m.p.h. (19 km/h).  The maximum sustained wind speed was 60 m.p.h. (95 km/h) and there were wind gusts to 75 m.p.h. (120 km/h).  The minimum surface pressure was 995 mb.

Tropical Storm Mario strengthened during Sunday night.  The distribution of thunderstorms in Mario became more symmetrical.  Thunderstorms continued to develop near the center of Mario’s circulation.  Thunderstorms were also occurring in bands revolving around the center of Tropical Storm Mario.  Storms near the center of Mario generated upper level divergence that pumped mass away from the tropical storm.  The removal of mass caused the surface pressure to decrease.

Even though Tropical Storm Mario strengthened, the size of Mario’s circulation remained small.  Winds to tropical storm force extended out 35 miles (55 km) from the center of Tropical Storm Mario.

Tropical Storm Mario will move through an environment that will become unfavorable for intensification during the next 24 hours.  Mario will move over water where the Sea Surface Temperatures are near 26°C.  It will move under the southeastern part of an upper level trough  that is near the west coast of the U.S.  The upper level trough will produce southwesterly winds that will blow toward the top of Mario’s circulation.  Those winds will cause the vertical wind shear to increase.  The combination of more vertical wind shear and cooler Sea Surface Temperatures will cause Tropical Storm Mario to start to weaken during the next 24 hours.

Tropical Storm Mario will move around the around the southern part of a high pressure system over the southwest U.S. and northwest Mexico.  The high pressure system will steer Mario toward the west-northwest during the next 24 hours.  On its anticipated track, Tropical Storm Mario will remain southwest of Baja California.

Tropical Storm Mario Re-develops South of Baja California

Tropical Storm Mario re-developed over the Eastern North Pacific Ocean south of Baja California on Sunday morning.  At 11:00 a.m. EDT on Sunday the center of Tropical Storm Mario was located at latitude 18.5°N and longitude 110.2°W which put the center about 305 miles (490 km) south of the southern tip of Baja California.  Mario was moving toward the west-northwest at 8 m.p.h. (13 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.

After almost dissipating during Friday night, Tropical Storm Mario re-developed south of Baja California on Sunday morning.  A distinct low level center of circulation re-formed on Sunday morning.  More thunderstorms started to develop near the low level center of circulation.  Bands of showers and thunderstorms were revolving around the center of Tropical Storm Mario.  Storms near the center of Mario began to generate upper level divergence that pumped mass away from the tropical storm.

The circulation around Tropical Storm Mario was still small.  Wind to tropical storm force extended out 25 miles (40 km) in the northeastern quadrant of Mario’s circulation.  The winds in the other parts of Tropical Storm Mario were blowing at less than tropical storm force.

Tropical Storm Mario will move through an environment that will be somewhat favorable for intensification during the next 24 hours.  Mario will move over water where the Sea Surface Temperatures are near 28°C.  It will move under the southeastern part of upper level ridge over the southwest U.S. and northwest Mexico.  The upper level ridge will produce northeasterly winds that will blow toward the top of Mario’s circulation.  Those winds will cause moderate vertical wind shear.  The moderate vertical wind shear will inhibit intensification, but the wind shear will not be enough to prevent intensification.  Tropical Storm Mario is likely to intensify during the next 24 hours.

Tropical Storm Mario will move around the around the southern part of a high pressure system over the southwest U.S. and northwest Mexico.  The high pressure system will steer Mario toward the west-northwest during the next 24 hours.  On its anticipated track, Tropical Storm Mario will southwest of Baja California.

 

Tropical Storm Mario Forms Near Zihuatanejo

Tropical Storm Mario formed over the Eastern North Pacific Ocean near Zihuatanejo, Mexico on Friday morning.  The government of Mexico issued a Tropical Storm Watch for a portion of the coast.  At 11:00 a.m. EDT on Friday the center of Tropical Storm Mario was located at latitude 17.2°N and longitude 101.9°W which put the center about 40 miles (65 km) south-southwest of Zihuatanejo, Mexico.  Mario 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 1006 mb.

A Tropical Storm Watch is in effect for the portion of the coast from Lazaro Cardenas to Punta San Telmo, Mexico.

A low pressure system over the Eastern North Pacific Ocean near Zijuatanejo strengthened on Friday morning and the U.S. National Hurricane Center designated the system as Tropical Storm Mario.

The circulation around Tropical Storm Mario exhibited more organization on Friday morning.  More thunderstorms developed near the center of Mario’s circulation.  Thunderstorms were also occurring in short bands that were revolving around the center of Tropical Storm Mario.  Storms near the center of Mario generated upper level divergence that pumped mass away from the tropical storm.

The circulation around Tropical Storm Mario was very small.  Winds to tropical storm force extended out 25 miles (40 km) in the northwestern quadrant of Mario’s circulation.  The winds in the other parts of Tropical Storm Mario were blowing at less than tropical storm force.

Tropical Storm Mario will move through an environment that will be somewhat favorable for intensification during the next 24 hours.  Mario will move over water where the Sea Surface Temperatures are near 30°C.  It will move under the southern part of upper level ridge over Mexico.  The upper level ridge will produce northeasterly winds that will blow toward the top of Mario’s circulation.  Those winds will cause moderate vertical wind shear.  The circulation around Tropical Storm Mario could also pull drier air over Mexico in the tropical storm.  The moderate vertical wind shear and drier air will inhibit intensification.  Tropical Storm Mario could intensify during the next 24 hours if the center remains over the ocean.

Tropical Storm Mario will move around the around the southwestern part of a high pressure system over Mexico.  The high pressure system will steer Mario toward the west-northwest during the next 24 hours.  On its anticipated track, Tropical Storm Mario will move near the coast of Michoacan.

Tropical Storm Mario will bring gusty winds and locally heavy rain to coastal parts of Michoacan.  Heavy rain could cause flash floods in some locations.

Tropical Depression Thirteen-E Strengthens to Tropical Storm Lane

Former Tropical Depression Thirteen-E strengthened to Tropical Storm Lane during Friday night.  At 5:00 a.m. EDT on Saturday the center of Tropical Storm Lane was located at latitude 11.1°N and longitude 129.5°W which put the center about 1525 miles (2455 km) west-southwest of the southern tip of Baja California.  Lane was moving toward the west 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 1005 mb.

The circulation around formed Tropical Depression Thirteen-E strengthened during Friday night and the U.S. National Hurricane center designated the system as Tropical Storm Lane.  The distribution of thunderstorms in Tropical Storm Lane was asymmetrical.  The inner end of a band of thunderstorms wrapped around the northern side of the center of Lane’s circulation.  Bands in the southern side of Tropical Storm Lane consisted primarily of showers and lower clouds.  Storms near the center of Lane generated upper level divergence that pumped mass away to the east of the tropical storm.

The strongest winds in Tropical Storm Lane were occurring in the band of thunderstorms north of the center of circulation.  Winds to tropical storm force were occurring out to 45 miles (75 km) in the northern side of Lane’s circulation.  The winds in the southern side of Tropical Storm Lane were blowing at less than tropical storm force.

Tropical Storm Lane will move through an environment that will be only marginally favorable for intensification during the next 24 hours.  Lane will move over water where the Sea Surface Temperatures are near 28°C.  It will move under the southeastern part of an upper trough east of Hawaii.  The upper level ridge will produce southwesterly winds that will blow toward the top of Lane’s circulation.  Those winds will cause the vertical wind shear to increase.  The wind shear will inhibit intensification, but Tropical Storm Lane could intensify a little more during the next 12 hours.  The upper level trough will cause the vertical wind shear to increase even more on Sunday, which will cause Lane to weaken

Tropical Storm Lane will move south of a high pressure system over the Eastern North Pacific Ocean.  The high pressure system will steer the Lane toward the west during the next 24 hours.  On its anticipated track, Tropical Storm Lane will move remain far from any land areas.

Tropical Depression Thirteen-E Forms Southwest of Baja California

Tropical Depression Thirteen-E formed over the Eastern North Pacific Ocean southwest of Baja California on Friday afternoon.  At 5:00 p.m. EDT on Friday the center of Tropical Depression Thirteen-E was located at latitude 11.2°N and longitude 128.4°W which put the center about 1460 miles (2350 km) west-southwest of the southern tip of Baja California.  The tropical depression was moving toward the west at 7 m.p.h. (11 km/h).  The maximum sustained wind speed was 35 m.p.h. (55 km/h) and there were wind gusts to 45 m.p.h. (75 km/h).  The minimum surface pressure was 1006 mb.

A low pressure system over the Eastern North Pacific Ocean southwest of Baja California strengthened on Saturday afternoon and the U.S. National Hurricane Center designated the system as Tropical Depression Thirteen-E.  More thunderstorms formed near the center of Tropical Depression Thirteen-E on Friday afternoon.  Other bands of showers and thunderstorms were revolving around the center of the tropical depression.  Storms near the center of circulation generated upper level divergence that pumped mass away from the tropical depression.

Tropical Depression Thirteen-E will move through an environment that will be somewhat favorable for intensification during the next 24 hours.  The tropical depression will move over water where the Sea Surface Temperatures are near 28°C.  It will move under the western part of an upper level ridge over the Eastern North Pacific Ocean.  The upper level ridge will produce easterly winds that will blow toward the top of the depression’s circulation.  Those winds will cause some vertical wind shear.  The wind shear will inhibit intensification, but the shear may not be enough to prevent intensification.  Tropical Depression Thirteen-E could intensify to a tropical storm during the next 24 hours.

Tropical Depression Thirteen-E will move south of a high pressure system over the Eastern North Pacific Ocean.  The high pressure system will steer the tropical depression toward the west during the next 24 hours.  On its anticipated track, Tropical Depression Thirteen-E will move farther away from Baja California.

Tropical Storm Kenneth Strengthens a Little

Tropical Storm Kenneth strengthened a little over the Eastern North Pacific Ocean southwest of Baja California on Wednesday. At 5:00 p.m. EDT on Wednesday the center of Tropical Storm Kenneth was located at latitude 15.7°N and longitude 124.2°W which put it about 1055 miles (1700 km) west-southwest of the southern tip of Baja California. Kenneth was moving toward the west-northwest at 10 m.p.h. (16 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 1003 mb.

Tropical Storm Kenneth got a little stronger on Wednesday, but the distribution of thunderstorms around was still asymmetrical. The inner end of a rainband wrapped around the western side of the center of Kenneth’s circulation. Many of the thunderstorms were occurring in that rainband. Bands in the eastern half of Tropical Storm Kenneth consisted primarily of showers and lower clouds. Winds to tropical storm force extended out 80 miles (130 km) in the northern side of Kenneth’s circulation. The winds in the southern part of the circulation were blowing at less than tropical storm force.

Tropical Storm Kenneth will move through an environment that will become unfavorable for intensification during the next 24 hours. Kenneth will move over water where the Sea Surface Temperatures are near 27°C. An upper level trough east of Hawaii will produce southwesterly winds that will blow toward the top of Kenneth’s circulation. Those winds will cause the vertical wind shear to increase. Tropical Storm Kenneth will start to weaken when the vertical wind shear increases.

Tropical Storm Kenneth will move around the southern side of a high pressure system over the Eastern North Pacific Ocean. The high pressure system will steer Kenneth toward the north-northwest during the next 24 hours. On its anticipated track, Tropical Storm Kenneth will stay far away from Baja California and Hawaii.

Tropical Storm Kenneth Forms Southwest of Baja California

Tropical Storm Kenneth formed over the Eastern North Pacific Ocean southwest of Baja California on Tuesday afternoon. At 5:00 p.m. EDT on Tuesday the center of Tropical Storm Kenneth was located at latitude 15.1°N and longitude 121.0°W which put it about 900 miles (1450 km) southwest of the southern tip of Baja California. Kenneth was moving toward the west at 16 m.p.h. (26 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.

A low pressure system over the Eastern North Pacific Ocean southwest of Baja California strengthened on Tuesday afternoon and the U.S. National Hurricane Center designated the system as Tropical Storm Kenneth. The distribution of thunderstorms around Tropical Storm Kenneth was very asymmetrical. Most of the thunderstorms were occurring in a couple of bands in the northwestern part of Kenneth’s circulation. Bands in the other parts of the tropical storm consisted primarily of showers and lower clouds. Winds to tropical storm force were also occurring in the northwestern quadrant of Tropical Storm Kenneth. The winds in the other parts of Kenneth’s circulation were blowing at less than tropical storm force.

Tropical Storm Kenneth will move through an environment somewhat favorable for intensification during the next 24 hours. Kenneth will move over water where the Sea Surface Temperatures are near 27°C. It will move under the southern part of an upper level ridge over the Eastern North Pacific Ocean. The ridge will produce easterly winds that will blow toward the top of Kenneth’s circulation. Those winds will cause moderate vertical wind shear. The wind shear will inhibit intensification. Tropical Storm Kenneth could intensify on Wednesday, if the vertical wind shear is not too strong. An upper level trough east of Hawaii will produce southwesterly winds that will affect Kenneth later this week. The southwesterly winds will cause more vertical wind shear and the wind shear will cause Tropical Storm Kenneth to weaken.

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

Tropical Depression Lester Brings Rain to Southern Mexico

Tropical Depression Lester brought rain to southern Mexico on Saturday afternoon. At 2:00 p.m. EDT on Saturday the center of Tropical Depression Lester was located at latitude 16.5°N and longitude 98.5°W which put it about 85 miles (135 km) east-southeast of Acapulco, Mexico. Lester was moving toward the north at 10 m.p.h. (16 km/h). The maximum sustained wind speed was 35 m.p.h. (55 km/h) and there were wind gusts to 45 m.p.h. (75 km/h). The minimum surface pressure was 1009 mb.

Former Tropical Storm Lester quickly weakened to a tropical depression after the center made landfall on the coast of Mexico east of Acapulco. The government of Mexico discontinued the tropical storm warnings and watches for the coast. Tropical Depression Lester is forecast to dissipate quickly as it moves farther inland over Mexico. Even though Lester will weaken quickly, bands in the eastern side of Lester’s circulation will drop locally heavy rain over parts of Guerrero and Oaxaca. Heavy rain could cause flash floods in some locations.

Tropical Depression 13E Strengthens to Tropical Storm Lester, Mexico Issues Warning

Former Tropical Depression Thirteen-E strengthened to Tropical Storm Lester south of Mexico on Friday morning and the government of Mexico issued a Tropical Storm Warning for a portion of the coast. At 8:00 a.m. EDT on Friday the center of Tropical Storm Lester was located at latitude 13.4°N and longitude 96.1°W which put it about 160 miles (255 km) south of Puerto Angel, Mexico. Lester was moving toward the northwest 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 1005 mb.

A Tropical Storm Warning was in effect for the portion of the coast from Punta Maldonado to Zihuatanejo, Mexico. The Tropical Storm Warning included Acapulco. A Tropical Storm Watch was in effect for the portion of the coast from Punta Maldonado to Laguna de Chacahua, Mexico. A Tropical Storm Watch was in effect from Zihuatanejo to Lazaro Cardenas, Mexico.

The circulation around former Tropical Depression Thirteen-E strengthened on Friday morning and the National Hurricane Center upgraded it to Tropical Storm Lester. Even though former Tropical Depression Thirteen-E strengthened to Tropical Storm Lester, the distribution of thunderstorms continued to be asymmetrical. Most of the thunderstorms were occurring in bands in the western half of Lester’s circulation. Bands in the eastern half of the circulation consisted primarily of showers and lower clouds. Storms near the center of circulation generated upper level divergence that pumped mass away to the west of the tropical storm. Winds to tropical storm force extended out 45 miles (75 km) in the southern half of Lester’s circulation. The winds in the northern half of the circulation were blowing at less than tropical storm force.

Tropical Storm Lester will move through an environment somewhat favorable for intensification during the next 36 hours. Lester will move over water where the Sea Surface Temperatures are near 30˚C. It will move under the southern side of an upper level ridge over Mexico. The upper level ridge will produce easterly winds that will blow toward the top of the tropical depression. Those winds will cause vertical wind shear and the wind shear will inhibit intensification. Tropical Storm Lester likely to strengthen gradually during the next 36 hours.

Tropical Storm Lester will move around the southwestern part of a high pressure system that extends over Mexico. The high pressure system will steer Lester toward the northwest during the next 36 hours. On its anticipated track Tropical Storm Lester will approach the southwest coast of Mexico on Saturday morning. Lester will bring gusty winds and locally heavy rain to Guerrero. Heavy rain could cause flash floods in some locations.