Tag Archives: La Pesca

Tropical Storm Francine Churns over Western Gulf of Mexico

Tropical Storm Francine was churning over the western Gulf of Mexico on Tuesday morning.  At 8:00 a.m. EDT on Tuesday the center of Tropical Storm Francine located at latitude 24.5°N and longitude 94.9°W which put the center about 395 miles (640 km) south-southwest of Cameron, Louisiana.  Francine was moving toward the north at 5 m.p.h. (8 km/h).  The maximum sustained wind speed was 65 m.p.h. (105 km/h) and there were wind gusts to 80 m.p.h. (130 km/h).  The minimum surface pressure was 990 mb.

A Hurricane Warning is in effect for the portion of the coast from Sabine Pass to Grand Isle. Louisiana.

A Tropical Storm Warning is in effect for the portion of the coast from Grand Isle, Louisiana to the Mouth of the Pearl River.  The Tropical Storm Warning includes New Orleans.  The Tropical Storm Warning also includes Lake Pontchartrain and Lake Maurepas.  A Tropical Storm Warning is in effect for the portion of the coast from High Island, Texas to Sabine Pass, Louisiana.  A Tropical Storm Warning is in effect for the portion of the coast from Port Mansfield, Texas to the Mouth of the Rio Grande River.  A Tropical Storm Warning is in effect for the portion of the coast from La Pesca, Mexico to the Mouth of the Rio Grande River.

A Tropical Storm Watch is in effect for the portion of the coast from High Island to Port Mansfield, Texas.  A Tropical Storm Watch is in effect for the portion of the coast from Barra del Tordo to La Pesca, Mexico.

Rainbands in the western side of Tropical Storm Francine were dropping heavy rain on parts of south Texas.  A Flash Flood Warning is in effect for the area around Brownsville, Texas.

The circulation around Tropical Storm Francine showed signs of developing an inner core on Tuesday morning.  The inner end of a rainband wrapped most of the way around the center of Francines’s circulation.  An eye with a diameter of 25 miles (40 km) appeared to be forming at the center of Tropical Storm Francine.  The eye was surrounded by a nearly complete ring of thunderstorms and the strongest winds were occurring in that ring of storms.  Thunderstorms were occurring in bands in the northeastern part of Francine’s circulation.  Thunderstorms were also occurring in bands in the western side of Tropical Storm Francine.

The size of the circulation around Tropical Storm Francine contracted a little as it began to resemble a typical tropical cyclone.  Winds to tropical storm force extended out 140 miles (220 km) from the center of Francine’s circulation.

Tropical Storm Francine will move through an environment very favorable for intensification during the next 24 hours.  Francine will move over water where the Sea Surface Temperatures are near 30°C.  It will move under the middle of an upper level ridge over the western Gulf of Mexico.  The upper level winds are weak near the middle of the ridge and there will be little vertical wind shear.  Tropical Storm Francine will intensify to a hurricane during the next 24 hours.  Francine could intensify rapidly after the inner core is fully formed.

Tropical Storm Francine will move around the western part of a high pressure system that extends from the western Atlantic Ocean to the Gulf of Mexico.  The high pressure system will steer Francine toward the northeast during the next 24 hours.  On its anticipated track, Tropical Storm Francine will move toward Louisiana.  Francine will move faster toward the northeast on Wednesday when an upper level trough over the south central U.S. also begins to steer it toward the coast.  Tropical Storm Francine will approach the coast of Louisiana on Wednesday afternoon.  Francine will be a hurricane when it approaches the coast of Louisiana.

Tropical Storm Francine will bring strong winds and heavy rain to Louisiana.  Francine will be capable of causing serious damage.  Widespread outages of electricity are likely.  Heavy rain is likely to cause flash floods.

Flood Watches are in effect for parts of Louisiana.

Tropical Storm Francine could cause a storm surge of up to 10 feet (3 meters) along parts of the coast of Louisiana.

A Storm Surge Warning is in effect for the portion of the coast from High Island, Texas to the Mouth of the Mississippi River.  The Storm Surge Warning includes Vermilion Bay.

 

 

Tropical Storm Forming over Western Gulf of Mexico

A tropical storm is forming over the western Gulf of Mexico on Wednesday morning.  The low pressure system is currently designated as Potential Tropical Cyclone One.  At 8:00 a.m. EDT on Wednesday the center of Potential Tropical Cyclone One was located at latitude 22.7°N and longitude 94.3°W which put it about 235 miles (380 km) east-southeast of La Pesca, Mexico and about 295 miles (475 km) southeast of Brownsville, Texas.  The low pressure system 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 997 mb.

A low pressure system over the western Gulf of Mexico, currently designated as Potential Tropical Cyclone One, on Wednesday morning is beginning to develop a structure more like a tropical cyclone.  Thunderstorms are staring to develop near the center of the low pressure system.  A band of thunderstorms wraps around the southern and eastern side of Potential Tropical Cyclone One.  Other bands of showers and thunderstorms are revolving around the middle of the low pressure system.

The distribution of winds around Potential Tropical Cyclone One is still asymmetrical.  The winds near the middle of the low pressure system are relatively weak.  The strongest winds are occurring in a band of thunderstorms about 400 miles (645 km) north of the middle of Potential Tropical Cyclone One.  Some of the winds in that band of storms are blowing at tropical storm force.  An anemometer at Garden Banks 783 (KGBK) is measuring a sustained wind speed of 45 m.p.h. (75 km/h) and wind gusts of 50 m.p.h (80 km/h).  The anemometer is at a height of 58.2 meters above sea level.  The winds in the rest of the low pressure system are blowing at less than tropical storm force.

The low pressure system will move through an environment favorable for the development of a tropical cyclone during the next 24 hours.  Potential Tropical Cyclone One will move over water where the Sea Surface Temperatures are near 30°C.  It will move under the the center of an upper level ridge over the western Gulf of Mexico.  The upper level winds are weak near the center of the ridge and there will be little vertical wind shear.  Potential Tropical Cyclone One is forecast to develop into a tropical storm during the next 24 hours.  In order to be classified as a tropical cyclone, a distinct low level center of circulation will have to form.  Thunderstorms will have to develop and to persist near the low level center.  The strongest winds will need to occur near the low level center of circulation in order for Potential Tropical Cyclone One to be classified as a tropical storm.

Potential Tropical Cyclone One will move south of a strong high pressure system over the eastern U.S.  The strong high pressure system will block Potential Tropical Cyclone One and the high pressure system will prevent the low pressure system from moving toward the north.  The high pressure system will steer the low pressure system toward the west during the next 24 hours.  On its anticipated track, Potential Tropical Cyclone One could approach the coast of northern Mexico and southern Texas on Wednesday evening.  The center of the low pressure system is likely to make landfall between Tampico and La Pesca, Mexico

Tropical Storm Warnings Issued for South Texas and Northern Mexico

Tropical Storm Warnings were issued for the coast of south Texas and northern Mexico early on Tuesday. A low pressure system over the southern Gulf of Mexico was designated as Potential Tropical Cyclone One. At 8:00 a.m. EDT on Tuesday the center of Potential Tropical Cyclone One was located at latitude 21.5°N and longitude 92.8°W which put it about 355 miles (575 km) east-southeast of La Pesca, Mexico and about 420 miles (680 km) southeast of Brownsville, Texas. The low pressure system was moving toward the north at 6 m.p.h. (10 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 999 mb.

A large low pressure system was over the southern Gulf of Mexico on Tuesday morning. The low pressure system did not exhibit the usual structural features of a tropical cyclone. So, the U.S. National Hurricane Center continued to designate the system as Potential Tropical Cyclone One.

The large low pressure system still did not have a well defined, distinct low level center of circulation. There were few thunderstorms in the broad region around the middle of the low pressure system. The surface winds were relatively weak near the middle of the low pressure system. The strongest winds were occurring in a band of thunderstorms about 285 miles (460 km) north of the middle of Potential Tropical Cyclone One. Some winds in that area were blowing at tropical storm force. Elsewhere in the low pressure system, the winds were blowing at less than tropical storm force.

The low pressure system will move through an environment favorable for the development of a tropical cyclone during the next 24 hours. Potential Tropical Cyclone One will move over water where the Sea Surface Temperatures are near 30°C. It will move under the the center of an upper level ridge centered near the Yucatan Peninsula. The upper level winds are weak near the center of the ridge and there will be little vertical wind shear. Potential Tropical Cyclone One could develop into a tropical storm during the next 24 hours. In order to be classified as a tropical cyclone, a distinct low level center of circulation would have to form. Thunderstorms would have to develop and to persist near the low level center. The strongest winds would need to occur near the low level center of circulation in order for Potential Tropical Cyclone One to be classified as a tropical storm.

Potential Tropical Cyclone One will move around the northern part of a large counterclockwise circulation called a Central American Gyre (CAG) during the next 12 hours. The Central American Gyre will steer the low pressure system toward the north-northwest on Tuesday. A strong high pressure system over the eastern U.S. will block Potential Tropical Cyclone One from moving toward the north on Wednesday. The high pressure system will turn the low pressure system toward the west-northwest. On its anticipated track, Potential Tropical Cyclone One could approach the coast of northern Mexico or southern Texas on Wednesday evening.

Tropical Storm Watches Issued for South Texas and Northern Mexico

Tropical Storm Watches were issued for parts of the coast of south Texas and northern Mexico on Monday afternoon. A low pressure system over the Bay of Campeche was designated as Potential Tropical Cyclone One. At 5:00 p.m. EDT on Monday the center of Potential Tropical Cyclone One was located at latitude 20.3°N and longitude 93.2°W which put it about 380 miles (615 km) southeast of La Pesca, Mexico and about 470 miles (755 km) southeast of Brownsville, Texas. The low pressure system was moving toward the north-northwest 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 1001 mb.

A large low pressure system formed over the Bay of Campeche on Monday. The low pressure system did not exhibit the usual structural features of a tropical cyclone. So, the U.S. National Hurricane Center designated the system as Potential Tropical Cyclone One. Since the low pressure system has the potential to develop into a tropical storm, Tropical Storm Watches were issued for the coast of southern Texas and northern Mexico.

The large low pressure system did not have a well defined, distinct low level center of circulation. There were few thunderstorms in the broad region around the middle of the low pressure system. The surface winds were relatively weak near the middle of the low pressure system. The strongest winds were occurring in a band of thunderstorms about 285 miles (460 km) northeast of the middle of Potential Tropical Cyclone One. Some winds in that area were blowing at tropical storm force. Elsewhere in the low pressure system, the winds were blowing at less than tropical storm force.

The low pressure system will move through an environment favorable for the development of a tropical cyclone during the next 24 hours. Potential Tropical Cyclone One will move over water where the Sea Surface Temperatures are near 30°C. It will move under the the center of an upper level ridge centered near the Yucatan Peninsula. The upper level winds are weak near the center of the ridge and there will be little vertical wind shear. Potential Tropical Cyclone One could develop into a tropical storm during the next 24 hours. A distinct low level center of circulation would have to form. Thunderstorms would have to develop and to persist near the low level center. The strongest winds would need to occur near the low level center of circulation in order for Potential Tropical Cyclone One to be classified as a tropical storm.

Potential Tropical Cyclone One will move around the northeastern part of a large counterclockwise circulation call a Central American Gyre (CAG). The Central American Gyre will steer the low pressure system toward the north-northwest during the next 24 hours. A strong high pressure system over the eastern U.S. will turn the low pressure system toward the west-northwest on Wednesday. On its anticipated track, Potential Tropical Cyclone One could approach the coast of northern Mexico or southern Texas on Wednesday evening.

Potential Tropical Cyclone One could be a tropical storm when it approaches the coast. That is the reason the Tropical Storm Watches were issued. Even if Potential Tropical Cyclone One does not develop into a tropical storm, it will drop heavy rain on parts of northern Mexico and southern Texas. The low pressure system could also cause a storm surge of up to four feet (one meter) where the winds blow the water toward the coast.

Major Hurricane Dorian Moves Toward the Carolinas

Major Hurricane Dorian moved toward the Carolinas on Wednesday night.  At 11:00 p.m. EDT on Wednesday the center of Hurricane Dorian was located at latitude 31.3°N and longitude 79.6°W which put it about 105 miles (170 km) south of Charleston, South Carolina.  Dorian was moving toward the north at 7 m.p.h. (11 km/h).  The maximum sustained wind speed was 115 m.p.h. (195 km/h) and there were wind gusts to 140 m.p.h. (220 km/h).  The minimum surface pressure was 955 mb.

A Hurricane Warning was in effect for the portion of the coast from Savannah River, Georgia to the North Carolina/Virginia border including Albemarle and Pamlico Sounds.  A Hurricane Watch was in effect for the portion of the coast from the mouth of the St. Mary’s River, Florida to Savannah River, Georgia.  Tropical Storm Warnings were in effect for the portions of the coast from the mouth of the St. Mary’s River to Savannah River, Georgia and from the North Carolina/Virginia border to Chincoteague, Virginia.  A Tropical Storm Warning was also in effect for Chesapeak Bay south of Smith Point.  Tropical Storm Watches were in effect for the portion of the coast from Chincoteague, Virginia to Fenwick Island, Delaware, for Chesapeake Bay from Smith Point to Drum Point and for the Tidal Potomac south of Cobb Island.

Hurricane Dorian strengthened back into a major hurricane on Wednesday night as it moved over the warm water in the Gulf Stream.  A large eye with a diameter of 45 miles (75 km) became more circular and symmetrical.  The ring of thunderstorms surrounding the eye became continuous and a little thicker.  The strongest winds were occurring in that ring of storms.  Other bands of showers and thunderstorms revolving around the core of Hurricane Dorian also got stronger.  Storms around the core of Dorian generated upper level divergence which pumped mass away from the hurricane and the surface pressure decreased.

The circulation around Hurricane Dorian increased in size on Wednesday.  Winds to hurricane force extended out about 60 miles (95 km) from the center of circulation.  Winds to tropical storm force extended out about 200 miles (320 km) from the center.  The Hurricane Intensity Index (HII) for Hurricane Dorian was 20.6.  The Hurricane Size Index (HSI) was 22.6 and the Hurricane Wind Intensity Size Index (HWISI) was 43.2.  Hurricane Dorian was capable of causing widespread major damage.

Hurricane Dorian will move through an environment favorable for intensification during the next 12 hours.  Dorian will move over water where the Sea Surface Temperature is near 28°C.  It will move through a region where the upper level winds are weak and there is little vertical wind shear.  Hurricane Dorian could get a little stronger during the night.  An upper level trough over the central U.S. will move toward Hurricane Dorian on Thursday.  The upper level trough will produce southwesterly winds which will blow toward the top of the hurricane.  Those winds will cause the vertical wind shear to increase, which will cause Dorian to start to weaken.

Hurricane Dorian will move around the western end of a subtropical ridge over the western Atlantic Ocean.  The ridge will steer Dorian toward the north on Wednesday night.  The upper level trough will turn Hurricane Dorian toward the northeast on Thursday.  On its anticipated track Hurricane Dorian could approach the coast of South Carolina on Thursday morning.  Dorian will move along the coast of North Carolina on Thursday afternoon and Thursday night.

Even if the center of Hurricane Dorian stays just south of the coast of South Carolina and North Carolina, the large circulation means that locations near the coast are likely to get hurricane force winds.  Winds blowing water toward the coast could cause storm surges of 5 to 8 feet (1.5 to 2.5 meters) in some locations.  Dorian could also drop locally heavy rain and cause flash flooding  near the coast.

Elsewhere, Tropical Storm Fernand made landfall north of La Pesca, Mexico on Wednesday and Tropical Storm Gabrielle developed south of the Azores.  Ar 11:00 p.m. EDT on Wednesday the center of Tropical Depression Fernand was located at latitude 25.0°N and longitude 99.0°W which put it about 100 miles (160 km) west-northwest of La Pesca, Mexico.  Dorian was moving toward the west-northwest at 9 m.p.h. (15 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 1007 mb.

At 11:00 p.m. EDT on Wednesday the center of Tropical Storm Gabrielle was located at latitude 21.5°N and longitude 34.4°W which put it about 1220 miles (1965 km) south-southwest of the Azores.  Gabrielle 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 m/h).  The minimum surface pressure was 1002 mb.

Tropical Storm Fernand Forms Over W. Gulf of Mexico, Dorian Edges Away From Bahamas

Tropical Storm Fernand formed over the western Gulf of Mexico and powerful Hurricane Dorian edged slowly away from the Northwestern Bahamas on Tuesday afternoon.  At 2:00 p.m. EDT on Tuesday the center of Tropical Storm Fernand was located at latitude 23.5°N and longitude 95.3°W which put it about 160 miles (260 km) east of La Pesca, Mexico.  Fernand 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 1004 mb.

The government of Mexico issued a Tropical Storm Warning that was in effect for the portion of the coast from Barra del Tordo to the mouth of the Rio Grande River.

The circulation around an area of low pressure over the western Gulf of Mexico exhibited greater organization on Tuesday afternoon and the National Hurricane Center designated the system as Tropical Storm Fernand.  The circulation around Fernand consisted of a broad area of lower pressure.  One rainband wrapped around the northern periphery of the circulation and a second rainband wrapped around the western periphery of the circulation.  Bands in other parts of the circulation consisted primarily of showers and low clouds.  Winds to tropical storm force extended out about 105 miles (170 km) from the center of the circulation on the western side of Fernand.

Tropical Storm Fernand will move through an environment favorable for intensification during the next 24 hours.  Fernand 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.  Fernand is likely to strengthen during the next 24 hours.  However, the broad circulation will limit how fast the tropical storm can intensify.

Tropical Storm Fernand will move south of an ridge of high pressure over the southern U.S.  The ridge will Fernand toward the west-northwest during the next day or two.  On its anticipated track Tropical Storm Fernand is expected to make landfall on the coast of Mexico between La Pesca and Mezquital on Wednesday.  Fernand will bring gusty winds and locally heavy rain.  The rain could cause flash floods where Tropical Storm Fernand moves inland over northeastern Mexico.  Fernand could also cause a storm surge of 6 feet (2 meters) along the coast.

Elsewhere over the Atlantic Ocean, powerful Hurricane Dorian began to edge slowly away from the Northwestern Bahamas.  At 2:00 p.m. EDT on Tuesday the center of Hurricane Dorian was located at latitude 27.5°N and longitude 78.7°W which put it about 105 miles (170 km) east of Ft. Pierce, Florida.  Dorian was moving toward the northwest 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. (215 km/h).  The minimum surface pressure was 959 mb.

Hurricane Warnings were in effect for the portions of the coast from Jupiter Inlet to Ponte Vedra Beach, Florida and from Edisto Beach to South Santee River, South Carolina.  Hurricane Watches were in effect for the portions of the coast from Ponte Vedra Beach to Edisto Beach and from South Santee River to Duck, North Carolina including Albemarle and Pamlico Sounds.  Tropical Storm Warnings were in effect for the portions of the coast from Deerfield Beach to Jupiter Inlet, Florida and from Ponte Vedra Beach to Edisto Beach.  The Hurricane Warnings for the Northwestern Bahamas including the Abacos and Grand Bahama Island had been changed to Tropical Storm Warnings, since Dorian was moving away from those locations.

Hurricane Dorian finally started to move around the western end of a subtropical high pressure system over the Atlantic Ocean on Tuesday.  An upper level trough over the U.S. will turn Dorian toward the northeast on Wednesday.  On its anticipated track the center of Hurricane Dorian will stay offshore and move parallel to east coast of Florida.  A small deviation to the west could bring the core of Dorian close to the coast.  The center of Hurricane Dorian could move very close to the coast of South Carolina and North Carolina on Thursday.  The circulation around Hurricane Dorian increased in size on Tuesday.  Winds to hurricane force extended out about 60 miles (95 km) from the center of circulation.  Winds to tropical storm force extended out about 170 miles (275 km) from the center.