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Tropical Storm Harold Brings Wind and Rain to South Texas

Tropical Storm Harold brought wind and rain to South Texas on Tuesday. At 11:00 a.m. EDT on Tuesday the center of Tropical Storm Harold was located at latitude 27.1°N and longitude 97.4°W which put it about 35 miles (55 km) north of Port Mansfield, Texas. Harold was moving toward the west-northwest at 21 m.p.h. (33 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 998 mb.

At 8:00 a.m. EDT on Tuesday the center of Tropical Storm Harold was located at latitude 26.2°N and longitude 96.4°W which put it about 70 miles (110 km) east-southeast of Port Mansfield, Texas. Harold was moving toward the west-northwest at 18 m.p.h. (29 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 Tropical Storm Warning was in effect for the portion of the coast from Port O’Connor, Texas to the Mouth of the Rio Grande, River. A Tropical Storm Watch was in effect for the portion of the coast from Port O’Connor to Sargent, Texas.

Tropical Storm Harold strengthened a little before it made landfall on Padre Island. The distribution of thunderstorms in Harold was asymmetrical. There were more thunderstorms in the bands in the northern side of Harold’s circulation than there were in the bands in the southern half of the circulation. Winds to tropical storm force extended out 115 miles (185 km) from the center of Harold’s circulation.

Bands in the northern side of Tropical Storm Harold were dropping heavy rain over parts of South Texas. Flash Flood Warnings were in effect for eastern Duval County, Jim Wells County, western Kleberg County, south central Live Oak County, northwestern Nueces County, and southwestern San Patricio County.

The bands in the northern side of Tropical Storm Harold were also producing winds to tropical storm force. The National Weather Service Office in Corpus Christi (KCRP) reported a sustained wind speed of 40 m.p.h. (65 km/h) and a wind gust of 62 m.p.h. (100 km/h).

Tropical Storm Harold will move inland quickly over South Texas. Harold will weaken as it move farther inland, but Tropical Storm Harold will continue to drop heavy rain over parts of South Texas and the Lower Rio Grande Valley during the next few hours.

Elsewhere, Tropical Storm Franklin was over the Caribbean Sea and Tropical Depression Gert weakened east of the Leeward Islands.

At 11:00 a.m. EDT on Tuesday the center of Tropical Storm Franklin was located at latitude 15.5°N and longitude 71.1°W which put it about 220 miles (355 km) south-southwest of Santo Domingo, Dominican Republic. Franklin was moving toward the northwest at 7 m.p.h. (11 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 1002 mb.

A Tropical Storm Warning was in effect for the south coast of Haiti from Anse d’Hainault to the border with the Dominican Republic. A Tropical Storm Warning was also in effect for the south coast of the Dominican Republic from Isla Saona to the border with Haiti. A Tropical Storm Watch was in effect for the north coast of the Dominican Republic from Isla Saona to the border with Haiti. A Tropical Storm Watch was also in effect for the Turks and Caicos.

At 11:00 a.m. EDT on Tuesday the center of Tropical Depression Gert was located at latitude 17.4°N and longitude 59.7°W which put it about 230 miles (370 km) east of the Northern Leeward Islands. Gert was moving toward the west-northwest at 5 m.p.h. (8 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 1008 mb.

Tropical Storm Harold Approaches South Texas

Tropical Storm Harold was approaching the coast of South Texas on Tuesday morning. At 8:00 a.m. EDT on Tuesday the center of Tropical Storm Harold was located at latitude 26.2°N and longitude 96.4°W which put it about 70 miles (110 km) east-southeast of Port Mansfield, Texas. Harold was moving toward the west-northwest at 18 m.p.h. (29 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 Tropical Storm Warning was in effect for the portion of the coast from Port O’Connor, Texas to the Mouth of the Rio Grande, River. A Tropical Storm Watch was in effect for the portion of the coast from Port O’Connor to Sargent, Texas.

Former Tropical Depression Nine strengthened during Monday night and the U.S. National Hurricane Center designated the system as Tropical Storm Harold. There was a large circulation around Tropical Storm Harold, but the surface center of circulation was elongated. The distribution of thunderstorms in Harold was asymmetrical. There were more thunderstorms in the bands in the northern side of the low pressure system than there were in the bands in the southern half of the circulation. Winds to tropical storm force extended out 115 miles (185 km) from the center of Harold’s circulation.

Tropical Storm Harold will move through an environment somewhat favorable for intensification during the next few hours. Harold will move over water where the Sea Surface Temperatures are near 31°C. It will move under the southern part of an upper level ridge over the central U.S. There is also an upper level low over northern Mexico. The upper level ridge and the upper level low will interact to produce southeasterly winds that will blow toward the top of Harold’s circulation. Those winds will cause moderate vertical wind shear. The wind shear will inhibit intensification. Tropical Storm Harold could intensify a little during the next few hours in spite of the vertical wind shear.

The upper level ridge over the central U.S. will steer Tropical Storm Harold toward the west-northwest during the next 24 hours. On its anticipated track, Harold will reach the coast of South Texas in a few hours. Tropical Storm Harold will reach South Texas in a few hours. Harold will bring gusty winds and locally heavy rain to South Texas. Heavy rain is likely to cause flash floods in some locations. The low pressure system could also cause a storm surge of up to five feet (1.5 meters) along the coast.

Elsewhere, Tropical Storm Franklin was over the Caribbean Sea and Tropical Depression Gert was east of the Leeward Islands.

At 8:00 a.m. EDT on Tuesday the center of Tropical Storm Franklin was located at latitude 14.6°N and longitude 70.7°W which put it about 260 miles (420 km) south of Santo Domingo, Dominican Republic. Franklin was moving toward the west at 3 m.p.h. (5 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 1002 mb.

A Tropical Storm Warning was in effect for the south coast of Haiti from Anse d’Hainault to the border with the Dominican Republic. A Tropical Storm Warning was also in effect for the south coast of the Dominican Republic from Isla Saona to the border with Haiti. A Tropical Storm Watch was in effect for the north coast of the Dominican Republic from Isla Saona to the border with Haiti. A Tropical Storm Watch was also in effect for the Turks and Caicos.

At 5:00 a.m. EDT on Tuesday the center of Tropical Depression Gert was located at latitude 17.2°N and longitude 58.8°W which put it about 290 miles (470 km) east of the Northern Leeward Islands. Gert was moving toward the west-northwest at 8 m.p.h. (13 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 1008 mb.

Gulf System Prompts Tropical Storm Warning for South Texas

The potential risk posed by a low pressure system over the Gulf of Mexico prompted the issuance of a Tropical Storm Warning for South Texas. The U.S. National Hurricane Center designated the low pressure system as Potential Tropical Cyclone Nine on Monday morning. At 11:00 a.m. EDT on Monday the center of Potential Tropical Cyclone Nine was located at latitude 25.0°N and longitude 89.9°W which put it about 480 miles (770 km) east-southeast of Port Mansfield, Texas. The low pressure system was moving toward the west at 16 m.p.h. (26 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 1008 mb.

A Tropical Storm Warning was in effect for the portion of the coast from Port O’Connor, Texas to the Mouth of the Rio Grande, River. A Tropical Storm Watch was in effect for the portion of the coast from Port O’Connor to Sargent, Texas.

There was a large circulation around Potential Tropical Cyclone Nine, but there was not a well defined surface center of circulation. Bands of showers and thunderstorms were revolving counterclockwise in the large low pressure system. There were more thunderstorms in the bands in the northern side of the low pressure system than there were in the bands in the southern half of the circulation.

Potential Tropical Cyclone Nine will move through an environment mostly favorable for intensification during the next 24 hours. The low pressure system will move over water where the Sea Surface Temperatures are near 31°C. It will move under the southern part of an upper level ridge over the central U.S. The ridge will produce easterly winds that will blow toward the top of the low pressure system. The winds in the lower levels of the atmosphere will also blow form the east. So, there will not be a lot of vertical wind shear over much of the lower pressure system. An upper level low over northern Mexico will produce southerly winds that will blow toward the southwestern part of the low pressure system. There will be more vertical wind shear in that region. Potential Tropical Cyclone Nine is likely to intensify to a tropical storm during the next 24 hours.

The upper level ridge will steer Potential Tropical Cyclone Nine toward the west-northwest during the next 24 hours. On its anticipated track, the low pressure system will reach the coast of South Texas on Tuesday morning. Potential Tropical Cyclone Nine will likely be a tropical storm when it reaches South Texas. It will bring gusty winds and locally heavy rain to South Texas. Heavy rain is likely to cause flash floods in some locations. The low pressure system could also cause a storm surge of up to five feet (1.5 meters) along the coast.

Elsewhere, Tropical Storm Franklin was over the Caribbean Sea, Tropical Storm Gert was east of the Leeward Islands and former Tropical Storm Emily weakened to a tropical depression over the central Atlantic Ocean.

At 11:00 a.m. EDT on Monday the center of Tropical Storm Franklin was located at latitude 15.0°N and longitude 70.1°W which put it about 240 miles (390 km) south of Santo Domingo, Dominican Republic. Franklin was moving toward the west at 6 m.p.h. (10 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 999 mb.

A Tropical Storm Warning was in effect for the south coast of Haiti from Anse d’Hainault to the border with the Dominican Republic. A Tropical Storm Warning was also in effect for the south coast of the Dominican Republic from Isla Saona to the border with Haiti. A Tropical Storm Watch was in effect for the north coast of the Dominican Republic from Isla Saona to the border with Haiti.

At 11:00 a.m. EDT on Monday the center of Tropical Storm Gert was located at latitude 16.9°N and longitude 57.0°W which put it about 410 miles (665 km) east-southeast of the Northern Leeward Islands. Gert was moving toward the west 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 1006 mb.

At 11:00 a.m. EDT on Monday the center of Tropical Depression Emily was located at latitude 21.1°N and longitude 41.6°W which put it about 1225 miles (1965 km) west-northwest of the Cabo Verde Islands. Emily was moving toward the west-northwest at 9 m.p.h. (15 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.

Potential Tropical Cyclone Four Prompts Tropical Storm Warnings for Texas and Mexico

A weather system over the southwestern Gulf of Mexico was designated as Potential Tropical Cyclone Four on Friday afternoon and Tropical Storm Warnings were issued for portions of the coasts of Texas and Mexico. At 5:00 p.m. EDT on Friday the center of Potential Tropical Cyclone Four was located at latitude 20.7°N and longitude 94.5°W which put it about 400 miles (640 km) south-southeast of the Mouth of the Rio Grande River. Potential Tropical Cyclone Four was moving toward the northwest at 14 m.p.h. (22 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.

A Tropical Cyclone Warning was issued for the portion of the coast from Port Mansfield, Texas to Boca de Catan, Mexico.

A weather system over the southwestern Gulf of Mexico exhibited more organization on Friday. However, observations from a U.S. Air Force Reserve Hurricane Hunter plane on Friday afternoon indicated that there was not a well defined center of low level circulation in the weather system. The National Hurricane Center designated the system as Potential Tropical Cyclone Four in order to issue a Tropical Storm Warning for the coast of South Texas. The government of Mexico also issued a Tropical Storm Warning for the northern coast of Mexico.

More thunderstorms developed in Potential Tropical Cyclone Four on Friday afternoon. Some of the thunderstorms in the eastern half of the circulation appeared to be organizing into bands. The thunderstorms in Potential Tropical Cyclone Four began to generate upper level divergence that pumped mass away from the weather system.

Potential Tropical Cyclone Four will move through an environment favorable for intensification during the next 18 hours. Potential Tropical Cyclone Four will move over water where the Sea Surface Temperatures are 30˚C. It will move under an upper level ridge over the southwestern Gulf of Mexico. The upper level winds are weak in that region and there will be little vertical wind shear. Potential Tropical Cyclone Four is likely to intensify during the next 18 hours. A well defined low level center of circulation will have to develop in order for the system to become a tropical storm.

Potential Tropical Cyclone Four will move around the southwestern part of a subtropical high pressure system that extends over the Gulf of Mexico. The high pressure system will steer Potential Tropical Cyclone Four toward the northwest during the next 24 hours. On its anticipated track Potential Tropical Cyclone Four will make landfall south of Brownsville, Texas during Saturday night. It will bring locally heavy rain and gusty winds to South Texas and northern Mexico. Locally heavy rain could cause flash floods in some locations.

Hurricane Hanna Makes Landfall on Padre Island

The center of Hurricane Hanna officially made landfall on Padre Island 15 miles (25 km) north of Port Mansfield, Texas at 6:00 p.m. EDT on Saturday.  At 6:00 p.m. EDT on Saturday the center of Hurricane Hanna was located at latitude 26.8°N and longitude 97.4°W which put it 15 miles (25 km) north of Port Mansfield, Texas.  Hanna was moving toward the west-southwest at 8 m.p.h. (13 km/h).  The maximum sustained wind speed was 90 m.p.h. (150 km/h) and there were wind gusts to 110 m.p.h. (175 km/h).  The minimum surface pressure was 973 mb.

A Hurricane Warning was in effect for the portion of the coast from Port Mansfield to Port Aransas, Texas.  Tropical Storm Warnings were in effect for the portions of the coast from Barra el Mezquital, Mexico to Port Mansfield and from Port Aransas to Port O’Connor, Texas.

Hurricane Hanna strengthened during Saturday and the maximum sustained wind speed at the time of landfall was 90 m.p.h. (150 km/h).  The minimum pressure decreased to 973 mb during the day.  A circular eye with a diameter of 35 miles (55 km) developed at the center of circulation.  Winds to hurricane force extended out 30 miles (50 km) from the center of Hanna.  Winds to tropical storm force extended out 90 miles from the center of circulation.  A storm surge of up to 6 feet (2 meters) was occurring along the coast of Texas north of where the center made landfall.  There were reports of minor wind damage in Port Mansfield.

Hurricane Hanna will move south of a strengthening high pressure system over the southern U.S.  The high will steer Hanna toward the west-southwest during the next two days.  On its anticipated track the core of Hurricane Hanna will pass north of Brownsville, McAllen and Harlingen, Texas.  The center of Hanna will pass near Monterrey, Mexico on Sunday.  Hurricane Hanna will weaken gradually while it moves inland.  Hanna will drop heavy rain over South Texas and northeast Mexico.  Flash floods will likely occur in parts of the Lower Rio Grande Valley.

Hanna Strengthens to a Hurricane Near South Texas

Former Tropical Storm Hanna strengthened into a hurricane near the coast of South Texas on Saturday morning.  At 8:00 a.m. EDT on Saturday the center of Hurricane Hanna was located at latitude 27.1°N and longitude 96.0°W which put it about 100 miles (160 km) east-southeast of Corpus Christi, Texas.  Hanna was moving toward the west at 9 m.p.h. (15 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. (150 km/h).  The minimum surface pressure was 982 mb.

A Hurricane Warning was in effect for the portion of the coast from Port Mansfield to Mesquite Bay, Texas.  Tropical Storm Warnings were in effect for the portions of the coast from Barra de Mezquital, Mexico to Port Mansfield and from Mesquite Bay to High Island, Texas.

A NOAA aircraft detected winds to hurricane force in former Tropical Storm Hanna on Saturday morning and the National Hurricane Center upgraded Hanna to a hurricane.  The circulation around Hurricane Hanna was well organized.  A circular eye with a diameter of 25 miles (40 km) was at the center of 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 Hanna.  Storms near the core were generating upper level divergence which was pumping mass away from the hurricane.  Winds to hurricane force extended out 25 miles (40 km) from the center of circulation.  Winds to tropical storm force extended out 90 miles (150 km) from the center.

Hurricane Hanna will move through an environment favorable for strengthening during the next few hours.  Hanna will move over water where the Sea Surface Temperature is near 30°C.  It will move through a region where the upper level winds are weak and there will be little vertical wind shear.  Hurricane Hanna will continue to intensify until it makes landfall on the coast of South Texas.

Hurricane Hanna will move south of a high pressure system that stretches across the southern U.S.  The high will steer Hanna a little to the south of due west.  On its anticipated track the center of Hurricane Hanna will make landfall on Padre Island later today.  The northern part of the eyewall will pass near Corpus Christi and that city could experience winds to hurricane force.  The southern part of the eyewall will pass near Port Mansfield which could also experience hurricane force winds.  The core of Hanna will pass north of Brownsville, but Brownsville, Harlingen and Mcallen could all experience winds to tropical storm force.

Easterly winds will blow water toward the coast of South Texas and they will cause a significant storm surge.  The storm surge could reach 6 to 9 feet (2 to 3 meters) near and just to the north of where the center makes landfall.  Hurricane Hanna will also drop heavy rain over South Texas.  Isolated locations could receive over a foot (0.3 meters) of rain and flash flooding is likely.

Elsewhere, Tropical Storm Gonazalo was quickly nearing Trinidad.  At 8:00 a.m. EDT on Saturday  the center of Tropical Storm Gonzalo was located at latitude 10.3°N and longitude 59.8°W which put it about 100 miles (160 km) east of Trinidad.  Gonzalo was moving toward the west at 18 m.p.h. (30 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 1009 mb.

Tropical Storm Warnings were in effect  for Tobago and Grenada.