Hurricane Lowell Intensifies Back to Cat. 5

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Hurricane Lowell intensified back to Category 5 on the Saffir-Simpson Scale as it moved south-southwest of Hawaii on Friday evening.  At 11:00 p.m. EDT on Friday the center of Hurricane Lowell was located at latitude 13.3°N and longitude 161.4°W which put the center about 615 miles (990 km) south-southwest of Lihue, Hawaii.  Lowell was moving toward the west at 7 m.p.h. (11 km/h).  The maximum sustained wind speed was 160 m.p.h. (260 km/h) and there were wind gusts to 190 m.p.h. (305 km/h).  The minimum surface pressure was 922 mb.

Hurricane Lowell strengthened back to Category 5 on the Saffir-Simpson Scale on Friday evening.  A circular eye with a diameter of 30 miles (50 km) was at the center of Lowell’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 center of Hurricane Lowell.  Storms near the center generated stronger upper level divergence that pumped more mass away from the hurricane.  The removal of more mass in the upper levels of the atmosphere caused the surface pressure to decrease on Friday.

The distribution of wind speeds in Hurricane Lowell was fairly symmetrical.  Winds to hurricane force extended out 60 miles (95 km) from the center of Lowell’s circulation.  Winds to tropical storm force extended out 160 miles (260 km) from the center of Hurricane Lowell.

The Hurricane Intensity Index (HII) for Hurricane Lowell is 35.0. The Hurricane Size Index (HSI) is 18.9 and the Hurricane Wind Intensity Size Index (HWISI) is 53.9.  Hurricane Lowell is similar in intensity to Hurricane Maria when Maria hit Puerto Rico in 2017.

Hurricane Lowell will move through an environment favorable for a strong hurricane during the next 24 hours.  Lowell will move over water where the Sea Surface Temperatures are near 28°C. It will move through a region where the upper level winds are weak and there will be little vertical wind wind shear.  Hurricane Lowell is likely to maintain its intensity during the next 24 hours.

Hurricane Lowell will move around the southern side of a high pressure system that is over the Central North Pacific Ocean.  The high pressure system will steer Lowell toward the west during the next 24 hours.  On its anticipated track, Hurricane Lowell will remain south-southwest of Hawaii on Saturday.  Lowell is forecast to start moving toward the north during the weekend.

Elsewhere, Hurricane Karina continued to weaken gradually east of Hawaii and Hurricane Marie was spinning southwest of Baja California.

At 11:00 p.m. EDT on Friday the center of Hurricane Karina was located at latitude 20.7°N and longitude 141.9°W which put the center about 860 miles (1380 km) east of Hilo, Hawaii.  Karina was moving toward the west at 9 m.p.h. (15 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 982 mb.

At 11:00 p.m. EDT on Friday the center of Hurricane Marie was located at latitude 20.8°N and longitude 119.0°W which put the center about 600 miles (965 km) west-southwest of the southern tip of Baja California.  Marie was moving toward the northwest at 8 m.p.h. (13 km/h). The maximum sustained wind speed was 100 m.p.h. (160 km/h) and there were wind gusts to 120 m.p.h. (195 km/h).  The minimum surface pressure was 967 mb.

Hurricane Lowell Strengthens Back to Cat. 4

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Hurricane Lowell strengthened back to Category 4 on the Saffir-Simpson Scale as it moved south-southwest of Hawaii on Friday.  At 5:00 p.m. EDT on Friday the center of Hurricane Lowell was located at latitude 13.2°N and longitude 160.79°W which put the center about 615 miles (985 km) south-southwest of Lihue, Hawaii.  Lowell was moving toward the west-southwest at 7 m.p.h. (11 km/h).  The maximum sustained wind speed was 150 m.p.h. (240 km/h) and there were wind gusts to 175 m.p.h. (280 km/h).  The minimum surface pressure was 926 mb.

Hurricane Lowell strengthened back to Category 4 on the Saffir-Simpson Scale on Friday after weakening on Thursday night.  A circular eye with a diameter of 30 miles (50 km) was at the center of Lowell’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 center of Hurricane Lowell.  Storms near the center generated stronger upper level divergence that pumped more mass away from the hurricane.  The removal of more mass in the upper levels of the atmosphere caused the surface pressure to decrease on Friday.

An eyewall replacement cycle cause the size of the circulation around Hurricane Lowell to increase.  Winds to hurricane force extended out 60 miles (95 km) from the center of Lowell’s circulation.  Winds to tropical storm force extended out 160 miles (260 km) from the center of Hurricane Lowell.

The Hurricane Intensity Index (HII) for Hurricane Lowell is 31.6. The Hurricane Size Index (HSI) is 18.9 and the Hurricane Wind Intensity Size Index (HWISI) is 50.5. Hurricane Lowell is similar in intensity to Hurricane Ida when Ida hit southeast Louisiana in 2021.  Lowell is larger than Ida was.

Hurricane Lowell will move through an environment favorable for intensification during the next 24 hours.  Lowell will move over water where the Sea Surface Temperatures are near 28°C. It will move through a region where the upper level winds are weak and there will be little vertical wind wind shear.  Hurricane Lowell is likely to intensify during the next 24 hours.  Lowell could strengthen back to Category 5 on the Saffir-Simpson Scale.

Hurricane Lowell will move around the southern side of a high pressure system that is over the Central North Pacific Ocean.  The high pressure system will steer Lowell toward the west during the next 24 hours.  On its anticipated track, Hurricane Lowell will remain south-southwest of Hawaii on Saturday.  Lowell is forecast to start moving toward the north during the weekend.

Elsewhere, Hurricane Karina continued to weaken gradually  east of Hawaii and Hurricane Marie was spinning southwest of Baja California.

At 5:00 p.m. EDT on Friday the center of Hurricane Karina was located at latitude 20.6°N and longitude 141.1°W which put the center about 910 miles (1465 km) east of Hilo, Hawaii.  Karina was moving toward the west at 10 m.p.h. (16 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 978 mb.

At 5:00 p.m. EDT on Friday the center of Hurricane Marie was located at latitude 20.2°N and longitude 118.6°W which put the center about 590 miles (950 km) west-southwest of the southern tip of Baja California.  Marie was moving toward the west-northwest at 8 m.p.h. (13 km/h).  The maximum sustained wind speed was 100 m.p.h. (160 km/h) and there were wind gusts to 120 m.p.h. (195 km/h).  The minimum surface pressure was 972 mb.

Hurricane Lowell Moves South of Hawaii

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Hurricane Lowell moved south of Hawaii on Thursday.  At 11:00 p.m. EDT on Thursday the center of Hurricane Lowell was located at latitude 13.5°N and longitude 158.9°W which put the center about 590 miles (945 km) south of Lihue, Hawaii.  Lowell was moving toward the west at 9 m.p.h. (15 km/h).  The maximum sustained wind speed was 130 m.p.h. (210 km/h) and there were wind gusts to 155 m.p.h. (250 km/h).  The minimum surface pressure was 943 mb.

Hurricane Lowell weakened a little on Thursday as it moved south of Hawaii.  An eyewall replacement cycle may have led to the weakening of Lowell.  A circular eye with a diameter of 17 miles (28 km) was still at the center of Lowell’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 center of Hurricane Lowell.  Storms near the center generated upper level divergence that pumped mass away from the hurricane. The removal of mass in the upper levels was less than the convergence of mass in the lower levels of the atmosphere.  An accumulation of mass caused the surface pressure to increase on Thursday.

The eyewall replacement cycle cause the size of the circulation around Hurricane Lowell to increase.  Winds to hurricane force extended out 45 miles (75 km) from the center of Lowell’s circulation.  Winds to tropical storm force extended out 140 miles (225 km) from the center of Hurricane Lowell.

The Hurricane Intensity Index (HII) for Hurricane Lowell is 25.1.  The Hurricane Size Index (HSI) is 14.6 and the Hurricane Wind Intensity Size Index (HWISI) is 39.7.  Hurricane Lowell is similar in size and intensity to Hurricane Harvey when Harvey hit Texas in 2017.

Hurricane Lowell will move through an environment favorable for intensification during the next 24 hours.  Lowell will move over water where the Sea Surface Temperatures are near 28°C. It will move through a region where the upper level winds are weak and there will be little vertical wind wind shear.  Hurricane Lowell could intensify during the next 24 hours after the eyewall replacement cycle is fully completed.

Hurricane Lowell will move around the southern side of a high pressure system that is over the Central North Pacific Ocean.  The high pressure system will steer Lowell toward the west during the next 24 hours.  On its anticipated track, Hurricane Lowell will remain south of Hawaii on Friday.  Lowell is forecast to start moving toward the north by the end of the weekend.

Elsewhere, Hurricane Karina continued to weaken gradually and Hurricane Marie intensified to Category 2 on the Saffir-Simpson Scale.

At 11:00 p.m. EDT on Thursday the center of Hurricane Karina was located at latitude 20.1°N and longitude 138.4°W which put the center about 1085 miles (1745 km) east of Hilo, Hawaii.  Karina was moving toward the west-northwest at 9 m.p.h. (15 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 969 mb.

At 11:00 p.m. EDT on Thursday the center of Hurricane Marie was located at latitude 19.6°N and longitude 116.3°W which put the center about 470 miles (755 km) west-southwest of the southern tip of Baja California.  Marie was moving toward the west-northwest at 9 m.p.h. (15 km/h).  The maximum sustained wind speed was 100 m.p.h. (160 km/h) and there were wind gusts to 120 m.p.h. (195 km/h).  The minimum surface pressure was 972 mb.

Hurricane Lowell Intensifies to Cat. 5

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Hurricane Lowell intensified to Category 5 on the Saffir-Simpson Scale as it moved south of Hawaii on Wednesday.  At 5:00 p.m. EDT on Wednesday the center of Hurricane Lowell was located at latitude 13.3°N and longitude 154.3°W which put the center about 445 miles (715 km) south Hilo, Hawaii.  Lowell was moving toward the west at 10 m.p.h. (16 km/h).  The maximum sustained wind speed was 160 m.p.h. (260 km/h) and there were wind gusts to 190 m.p.h. (305 km/h).  The minimum surface pressure was 927 mb.

Hurricane Lowell intensified to Category 5 on the Saffir-Simpson Scale on Wednesday.  A circular eye with a diameter of 17 miles (28 km) was at the center of Lowell’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 center of Hurricane Lowell.  Storms near the center generated upper level divergence that pumped mass away from the hurricane.  The removal of mass caused the surface pressure to decrease.

The circulation around Hurricane Lowell was small.  Winds to hurricane force extended out 35 miles (55 km) from the center of Lowell’s circulation.  Winds to tropical storm force extended out 90 miles (145 km) from the center of Hurricane Lowell.

The Hurricane Intensity Index (HII) for Hurricane Lowell is 35.0.  The Hurricane Size Index (HSI) is 11.5 and the Hurricane Wind Intensity Size Index (HWISI) is 46.5.  Hurricane Lowell is similar in intensity to Hurricane MIchael when Michael hit Northwest Florida in 2018.  Lowell is a little smaller than Michael was.

Hurricane Lowell will move through an environment favorable for a strong hurricane during the next 24 hours.  Lowell will move over water where the Sea Surface Temperatures are near 28°C.  It will move through a region where the upper level winds are weak and there will be little vertical wind wind shear.  Hurricane Lowell could intensify during the next 24 hours unless an eyewall replacement cycle occurs.

Hurricane Lowell will move around the southern side of a high pressure system that is over the Central North Pacific Ocean.  The high pressure system will steer Lowell toward the west during the next 24 hours.  On its anticipated track, Hurricane Lowell will remain south of Hawaii on Thursday.

Elsewhere, Major Hurricane Karina continued to move westward and Tropical Storm Marie intensified gradually on Wednesday.

At 5:00 p.m. EDT on Wednesday the center of Hurricane Karina was located at latitude 18.9°N and longitude 133.8°W which put the center about 1390 miles (2235 km) east of Hilo, Hawaii.   Karina was moving toward the west-northwest at 12 m.p.h. (19 km/h).  The maximum sustained wind speed was 140 m.p.h. (225 km/h) and there were wind gusts to 165 m.p.h. (265 km/h).  The minimum surface pressure was 943 mb.

At 5:00 p.m. EDT on Wednesday the center of Tropical Storm Marie was located at latitude 18.0°N and longitude 112.5°W which put the center about 380 miles (610 km) south-southwest of the southern tip of Baja California.  Marie was moving toward the northwest at 12 m.p.h. (19 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 992 mb.

Tropical Depression Edouard Drops Heavy Rain on Southeast Texas

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Tropical Depression Edouard was dropping heavy rain on parts of southeast Texas on Wednesday morning.  At 5:00 a.m. EDT on Wednesday the center of Tropical Depression Edouard was located at latitude 30.8°N and longitude 95.0°W which put the center about 30 miles (50 km) south-southwest of Lufkin, Texas.  Edouard was moving toward the north-northwest at 5 m.p.h. (8 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 1004 mb.

Tropical Depression Edouard was dropping heavy rain on parts of southeast Texas on Wednesday morning.  A radar image from the U.S. National Weather Service Office in Houston showed that the circulation around Edouard was still very well organized.

Flash Flood Warnings are in effect for East Central San Jacinto County, Southeastern Polk County, and Northeastern Liberty County.

A well defined center of circulation was evident in Tropical Depression Edouard.  Bands of showers and thunderstorms were revolving around the center of Edouard’s circulation.  The heaviest rain was falling in a band that was south of the center of Tropical Depression Edouard.  Moderate to heavy rain falling near the center of Edouard’s circulation.  Moderate to heavy rain was also falling south and east of the center of Tropical Depression Edouard.

Tropical Depression Edouard will move around the southwestern part of a high pressure system that is over the Southeast U.S.  The high pressure system will steer Edouard slowly toward the north-northwest during the next 24 hours.  On its anticipated track, Tropical Depression Edouard will continue to move farther inland over southeast Texas.

Tropical Storm Edouard will continue to drop heavy rain to parts of southeast Texas.  Heavy rain could cause flash floods in some locations.

A Flood Watch is in effect for parts of southeast Texas.

Tropical Storm Marie Forms Southwest of Mexico

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Tropical Storm Marie formed over the Eastern North Pacific Ocean southwest of Mexico on Tuesday.  At 11:00 p.m. EDT on Tuesday the center of Tropical Storm Marie was located at latitude 16.1°N and longitude 110.3°W which put the center about 470 miles (755 km) south of the southern tip of Baja California.  Marie was moving toward the northwest at 9 m.p.h. (15 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 994 mb.

A low pressure system over the Eastern North Pacific Ocean southwest of Mexico strengthened on Tuesday and the U.S. National Hurricane Center designated the system as Tropical Storm Marie.

Tropical Storm Marie intensified steadily on Tuesday.  Numerous thunderstorms developed near the center of Marie’s circulation.  Bands of showers and thunderstorms were revolving around the center of Tropical Storm Marie.  Storms near the center of Marie generated upper level divergence that pumped mass away from the tropical storm.  The removal of mass caused the surface pressure to decrease.

The circulation around Tropical Storm Marie was large.  Winds to tropical storm force extended out 185 miles (295 km) from the center of Marie’s circulation.

Tropical Storm Marie will move through an environment that will be favorable for intensification during the next 24 hours.  Marie 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 wind shear.  Tropical Storm Marie will intensify during the next 24 hours.  Marie could intensify rapidly at times.  Tropical Storm Marie will strengthen to a hurricane on Wednesday.

Tropical Storm Marie will move around the southwestern side of a high pressure system that is centered over the southwest U.S.  The high pressure system will steer Marie toward the northwest during the next 24 hours.  On its anticipated track, Tropical Storm Marie will move southwest of Baja California.

Elsewhere, Hurricane Lowell rapidly intensified to a major hurricane south-southeast of Hawaii and Hurricane Karina continued to be Category 4 hurricane on the Saffir-Simpson Scale.

At 11:00 p.m. EDT on Tuesday the center of Hurricane Lowell was located at latitude 13.5°N and longitude 151.2°W which put the center about 500 miles (805 km) south-southeast Hilo, Hawaii.  Lowell was moving toward the west at 10 m.p.h. (16 km/h).  The maximum sustained wind speed was 130 m.p.h. (210 km/h) and there were wind gusts to 155 m.p.h. (250 km/h).  The minimum surface pressure was 953 mb.

At 11:00 p.m. EDT on Tuesday the center of Hurricane Karina was located at latitude 18.3°N and longitude 130.8°W which put the center about 1385 miles (2230 km) west of the southern tip of Baja California.  Karina was moving toward the west at 12 m.p.h. (19 km/h).  The maximum sustained wind speed was 140 m.p.h. (225 km/h) and there were wind gusts to 165 m.p.h. (265 km/h).  The minimum surface pressure was 946 mb.

Tropical Storm Edouard Moves over Southeast Texas

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Tropical Storm Edouard moved over southeast Texas near Port Arthur on Tuesday afternoon.  At 5:00 p.m. EDT on Tuesday the center of Tropical Storm Edouard was located at latitude 29.9°N and longitude 94.0°W which put the center about 5 miles (10 km) west of Port Arthur, Texas.  Edouard 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 998 mb.

A Tropical Storm Warning is in effect for the portion of the coast from Port Bolivar, Texas to the Vermilion/Cameron Parish Line in Louisiana.

The center of Tropical Storm Edouard moved inland near Port Arthur, Texas on Tuesday afternoon.  The maximum sustained wind speed was 60 m.p.h. (95 km/h) at the time of landfall.

Winds to tropical storm force extend out 25 miles (40 km) from the center of Tropical Storm Arthur.

Tropical Storm Edouard will move around the southwestern part of a high pressure system that is over the Southeast U.S.  The high pressure system will steer Edouard toward the northwest during the next 24 hours.  On its anticipated track, Tropical Storm Edouard will move inland over southeast Texas.

Tropical Storm Edouard will bring strong winds and heavy rain to parts of southeast Texas.  Heavy rain could cause flash floods in some locations.

A Flood Watch is in effect for parts of southeast Texas.

Tropical Storm Edouard Strengthens

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Tropical Storm Edouard was strengthening on Tuesday morning as it near the northwest Gulf Coast.  At 11:00 a.m. EDT on Tuesday the center of Tropical Storm Edouard was located at latitude 29.4°N and longitude 93.3°W which put the center about 30 miles (50 km) south of Cameron, Louisiana.  Edouard was moving toward the northwest at 8 m.p.h. (13 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.

A Tropical Storm Warning is in effect for the portion of the coast from Port Bolivar, Texas to the Vermilion/Iberia Parish Line in Louisiana.

A Hurricane Watch is in effect for the portion of the coast from High Island, Texas to Cameron, Louisiana.

An U.S. Air Force Reserve Hurricane Hunter reconnaissance plane found that Tropical Storm Edouard was strengthening on Tuesday morning.  The inner end of a rainband wrapped around the southern and eastern sides of the center of Edouard’s circulation.  Other bands of showers and thunderstorms were revolving around the center of Tropical Storm Edouard.  Storms near the center of Edouard generated upper level divergence that pumped mass away from the tropical storm.  The removal of mass caused the surface pressure to decrease.

The circulation around Tropical Storm Edouard was small.  Winds to tropical storm force extended out 25 miles (40 km) from the center of Edouard’s circulation.

Tropical Storm Edouard will move through an environment favorable for intensification during the next few hours.  Edouard will move over water where the Sea Surface Temperatures are near 30°C.  It will move through a region where the upper level winds are weak and there will be little vertical wind shear.  Tropical Storm Edouard is likely to continue to intensify until it makes landfall in a few hours.

Tropical Storm Edouard will move around the southwestern part of a high pressure system that is over the Southeast U.S.  The high pressure system will steer Edouard toward the northwest during the next 24 hours.  On its anticipated track, Tropical Storm Edouard will make landfall on the northwest Gulf Coast near the border between Texas and Louisiana in a few hours.

Tropical Storm Edouard will make landfall on the coast near the border between Texas and Louisiana in a few hours.   Edouard bring strong winds and locally heavy rain.  Heavy rain could cause flash floods in some locations.

A Flood Watch is in effect for southeast Texas including the area around Houston.

Tropical Storm Edouard could also cause a storm surge of up to 6 feet (2 meters) along a portion of the coast near the border between Texas and Louisiana.

A Storm Surge Warning is in effect for the portion of the coast from High Island, Texas to the Vermilion/Cameron Parish Line in Louisiana.

Karina and Lowell Churn Westward

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Hurricane Karina and Tropical Storm Lowell were churning westward over the North Pacific Ocean on Monday evening.

At 11:00 p.m. EDT on Monday the center of Hurricane Karina was located at latitude 17.8°N and longitude 126.6°W which put the center about 1135 miles (1830 km) west-southwest of the southern tip of Baja California.  Karina was moving toward the west-northwest at 9 m.p.h. (15 km/h).  The maximum sustained wind speed was 130 m.p.h. (210 km/h) and there were wind gusts to 155 m.p.h. (250 km/h).  The minimum surface pressure was 950 mb.

Hurricane Karina maintained its intensity on Monday as it churned west over the Eastern North Pacific Ocean.  A circular eye with a diameter of 12 miles (19 km) was at the center of Karina’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 Karina’s circulation.  Storms near the core of Karina generated upper level divergence that pumped large amounts of mass away from the hurricane. The removal of mass in the upper levels was nearly equal to the convergence of mass in the lower levels of the atmosphere.  So, the surface pressure was nearly constant on Monday.

The distribution of wind speeds in Hurricane Karina was fairly symmetrical.  Winds to hurricane force extended out 30 miles (50 km) from the center of Karina’s circulation.  Winds to tropical storm force extended out 115 miles (185 km) from the center of Hurricane Karina.

Hurricane Karina will move through an environment favorable for a strong hurricane during the next 24 hours.  Karina will move over water where the Sea Surface Temperatures are near 28°C.  It will move through a region where the upper level winds are weak and there will be little vertical wind shear.  Hurricane Karina is likely to maintain its intensity on Tuesday.

Hurricane Karina 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 Karina toward the west-northwest during the next 24 hours.  On its anticipated track, Hurricane Karina will continue to move farther away from Baja California.

Elsewhere, Tropical Storm Lowell intensified gradually on Monday.  At 11:00 p.m. EDT on Monday the center of Tropical Storm Lowell was located at latitude 13.0°N and longitude 147.4°W which put the center about 690 miles (1110 km) southeast Hilo, Hawaii.  Lowell was moving toward the west at 10 m.p.h. (16 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 993 mb.

Tropical Storm Edouard Develops South of Louisiana

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Tropical Storm Edouard developed over the northern Gulf of Mexico south of Louisiana on Monday evening.  At 8:00 p.m. EDT on Monday the center of Tropical Storm Edouard was located at latitude 28.4°N and longitude 91.6°W which put the center about 140 miles (225 km) southeast of Cameron, Louisiana.  Edouard was moving toward the west-northwest 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. (65 km/h).  The minimum surface pressure was 1010 mb.

A Tropical Storm Warning is in effect for the portion of the coast from Port Bolivar, Texas to the Vermilion/Iberia Parish Line in Louisiana.

Former Tropical Depression Five strengthened on Monday evening and the U.S. National Hurricane Center designated the system as Tropical Storm Edouard.

Tropical Storm Edouard was gradually strengthening on Monday evening.  Bands of showers and thunderstorms were revolving around the center of Edouard’s circulation.  Storms near the center of Edouard generated upper level divergence that pumped mass away from the tropical storm.  The removal of mass caused the surface pressure to decrease slowly.

The circulation around Tropical Storm Edouard was small.  Winds to tropical storm force extended out 25 miles (40 km) from the center of Edouard’s circulation.

Tropical Storm Edouard will move through an environment favorable for intensification during the next 18 hours.  Edouard will move over water where the Sea Surface Temperatures are near 30°C.  It will move through a region where the upper level winds are weak and there will be little vertical wind shear.  Tropical Storm will intensify during the next 18 hours.

Tropical Storm Edouard will move around the southwestern part of a high pressure system that is over the Southeast U.S.  The high pressure system will steer Edouard toward the west-northwest during the next 24 hours.  On its anticipated track, Tropical Storm Edouard will move toward the northwest Gulf Coast.

Tropical Storm Edouard will make landfall on the coast near the border between Texas and Louisiana on Tuesday.   Edouard bring strong winds and locally heavy rain.  Heavy rain could cause flash floods in some locations.

A Flood Watch is in effect for southeast Texas including the area around Houston.

Tropical Storm Edouard could also cause a storm surge of up to 6 feet (2 meters) along a portion of the coast near the border between Texas and Louisiana.

A Storm Surge Watch is in effect for the portion of the coast from High Island, Texas to the Vermilion/Cameron Parish Line in Louisiana.