Tag Archives: AL19

Tropical Storm Sean Moves West of Cabo Verde Islands

Tropical Storm Sean moved west of the Cabo Verde Islands on Thursday. At 5:00 p.m. EDT on Thursday the center of Tropical Storm Sean was located at latitude 13.8°N and longitude 38.2°W which put it about 960 miles (1545 km) west of the Cabo Verde Islands. Sean was moving toward the northwest at 12 m.p.h. (19 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.

Tropical Storm Sean did not change much on Thursday. An upper level trough over the central Atlantic Ocean was producing southwesterly winds that were blowing toward the top of Sean’s circulation. Those winds were causing strong vertical wind shear. The wind shear was causing the distribution of thunderstorms in Tropical Storm Sean to be asymmetrical. Thunderstorms were occurring in bands in the northeastern quadrant of Sean’s circulation. Bands in the other parts of Tropical Storm Sean consisted primarily of showers and lower clouds. The distribution of wind speeds was also asymmetrical. Winds to tropical storm force extended out 105 miles (165 km) in the northeastern quadrant of Tropical Storm Sean. The winds in the other parts of Sean’s circulation were blowing at less than tropical storm force.

Tropical Storm Sean will move through an environment marginally favorable for intensification during the next 24 hours. Sean will move over water where the Sea Surface Temperatures are near 28°C. It will continue to move under the eastern side of an upper level trough over the central Atlantic Ocean. The upper level trough will continue to strong vertical wind shear. The wind shear is likely to inhibit intensification. Tropical Storm Sean could maintain its intensity during the next 24 hours.

Tropical Storm Sean will move around the southwestern part of a high pressure system that extends from West Africa to the eastern Atlantic Ocean. The high pressure system will steer Sean toward the northwest during the next 24 hours. On its anticipated track, Tropical Storm Sean will move farther away from the Cabo Verde Islands.

Tropical Storm Sean Forms over the Eastern Atlantic Ocean

Tropical Storm Sean formed over the eastern Atlantic Ocean on Wednesday morning. At 5:00 a.m. EDT on Wednesday the center of Tropical Storm Sean was located at latitude 10.3°N and longitude 33.1°W which put it about 725 miles (1170 km) west-southwest of the Cabo Verde Islands. Sean was moving toward the west-northwest at 13 m.p.h. (21 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 low pressure system over the Atlantic Ocean west-southwest of Cabo Verde Islands strengthened on Wednesday morning and the U.S. National Hurricane Center designated the system as Tropical Storm Sean. More thunderstorms began to form near the center of Sean’s circulation. Bands of showers and thunderstorms were revolving around the center of circulation. Storms near the center generated upper level divergence that pumped mass away to the north of the tropical storm. Winds to tropical storm force extended out 90 miles (145 km) in the northeastern quadrant of Tropical Storm Sea. The winds in the other parts of Sean’s circulation were blowing at less than tropical storm force.

Tropical Storm Sean will move through an environment somewhat favorable for intensification during the next 24 hours. Sean will move over water where the Sea Surface Temperatures are near 29°C. It will move under the eastern side of an upper level trough over the central Atlantic Ocean. The upper level trough will produce southerly winds that will blow toward the top of Sean’s circulation. Those winds will cause moderate vertical wind shear. The wind shear will inhibit intensification, but the shear may not be strong enough to prevent intensification. Tropical Storm Sean is likely to intensify during the next 24 hours.

Tropical Storm Sean will move around the southwestern part of a high pressure system that extends from West Africa to the eastern Atlantic Ocean. The high pressure system will steer Sean toward the west-northwest during the next 24 hours. On its anticipated track, Tropical Storm Sean will move farther away from the Cabo Verde Islands.

Subtropical Storm Teresa Develops North of Bermuda

Subtropical Storm Teresa developed north of Bermuda on Friday afternoon. At 5:00 p.m. EDT on Friday the center of Subtropical Storm Teresa was located at latitude 34.5°N and longitude 64.5°W which put it about 155 miles (245 km) north of Bermuda. Teresa moving toward the northwest at 14 m.p.h. (22 km/h). The maximum sustained wind speed was 45 m.p.h. (75 km/h) and there were wind gusts to 60 m.p.h. (95 km/h). The minimum surface pressure was 1008 mb.

A distinct low level of circulation was evident under an upper level low pressure system north of Bermuda and the National Hurricane Center designated the system as Subtropical Storm Teresa. The structure of Subtropical Storm Teresa was complex. There was a distinct low level center of circulation under the western side of the upper level low. A long band of showers and thunderstorms arced around the eastern and northern side of the larger circulation. Winds to tropical storm force extended out 70 miles (110 km) in the northeastern quadrant of Subtropical Storm Teresa. Winds in the other parts of Teresa were blowing at less than tropical storm force.

Subtropical Storm Teresa will move through an environment that is only marginally favorable for intensification during the next 24 hours. Teresa will move over water where the Sea Surface Temperatures are near 27˚C. However, the circulation around the upper level low will cause vertical wind shear over the low level center of Teresa. The wind shear will inhibit intensification. Subtropical Storm Teresa could get a little stronger during the next 24 hours. Teresa is forecast to be absorbed by a larger extratropical cyclone by the end of the weekend.

An upper level trough over the eastern U.S. will steer Subtropical Storm Teresa toward the northeast during the weekend. On its anticipated track, Teresa will move farther away from Bermuda. Subtropical Storm Teresa is forecast to be absorbed by an extratropical cyclone south of Nova Scotia on Sunday.

Elsewhere, Hurricane Same strengthened over the tropical Atlantic Ocean. At 5:00 p.m. EDT on Friday the center of Hurricane Sam was located at latitude 12.1°N and longitude 44.8°W which put it about 1290 miles (2075 km) east-southeast of the Northern Leeward Islands. Sam moving toward the west at 12 m.p.h. (19 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 986 mb. Hurricane Sam is forecast to strengthen to a major hurricane during the weekend.

Tropical Storm Sally Drops Heavy Rain on Southeast U.S.

Tropical Storm Sally dropped heavy rain over parts of the southeastern U.S. on Wednesday afternoon.  At 5:00 p.m. EDT on Wednesday the center of Tropical Storm Sally was located at latitude 31.2°N and longitude 86.8°W which put it about 85 miles (135 km) west of Dothan, Alabama.  Sally was moving toward the northeast at 7 m.p.h. (11 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 990 mb.

A Tropical Storm Warning remained in effect for the portion of the coast from the Alabama/Florida border to Indian Pass, Florida.

The winds to tropical storm force were occurring in bands over the Gulf of Mexico in the southern part of Tropical Storm Sally.  Most of the winds over land were blowing at less than tropical storm force.

Hurricane Sally made landfall near Gulf Shores, Alabama on Wednesday morning as a Category 2 hurricane on the Saffir-Simpson Scale.  A NOAA C-MAN station at Ft. Morgan, Alabama measured a sustained wind speed 98 m.p.h. (158 km/h) and a peak wind gust of 121 m.p.h. (195 km/h) when the western eyewall passed over it.  Another weather station at Bon Secour, Alabama measured a sustained wind speed of 71 m.p.h. (115 km/h).  There were reports of widespread power outages in Alabama.  The Pensacola Naval Air Station reported a wind gust of 82 m.p.h. (132 km/h).

The wind pushed the water toward the coast and there was a storm surge over the barrier sialnds and along the coast of Alabama and northwest Florida.  Since the eye of Sally passed east of Mobile, Alabama, northerly winds pushed the water out of Mobile Bay and the water level dropped several feet.  Heavy rain fell north and east of the center of Sally and creeks an rivers were rising quickly in parts of southern Alabama and northwestern Florida.

Tropical Storm Sally will move northeast across Southeast Alabama on Wednesday night.  Sally will be over Georgia on Thursday and it will be over South Carolina on Thursday night.  Tropical Storm Sally will continue to drop heavy rain over those areas and Flash Flood Watches were in effect for parts of northwestern Florida, southern Alabama, Georgia, western North Carolina and western South Carolina.

Elsewhere, Hurricane Teddy was on a track that could take it near Bermuda in a few days.  At 5:00 p.m. EDT on Wednesday the center of Hurricane Teddy was located at latitude 17.5°N and longitude 50.8°W which put it about 710 miles (1145 km) east of the Lesser Antilles.  Teddy was moving toward the northwest at 13 m.p.h. (20 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 973 mb.

Hurricane Sally Makes Landfall Near Gulf Shores

The center of Hurricane Sally officially made landfall near Gulf Shores, Alabama on Wednesday morning.  At 6:00 a.m. EDT on Wednesday the center of Hurricane Sally was located at latitude 30.3°N and longitude 87.7°W which put it near Gulf Shores, Alabama.  Sally was moving toward the north-northeast at 3 m.p.h. (5 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 as 965 mb.

A Hurricane Warning was in effect from the Mississippi/Alabama border to the Okaloosa/Walton County line in Florida.  Tropical Storm Warnings were in effect for the portions of the coast from the Mouth of the Pearl River to the Mississippi/Alabama border and from the Okaloosa/Walton County Line to Indian Pass, Florida.

Hurricane Sally strengthened to Category 2 on the Saffir-Simpson Scale on Tuesday night as it ground its way slowly toward the Gulf Coast.  Winds to hurricane force extended out 40 miles (65 km) from the center of Sally.  Winds to tropical storm force extended out 130 miles (210 km) from the center.  The Hurricane Intensity Index (HII) for Hurricane Sally was 17.8.  The Hurricane Size Index (HSI) was 11.2 and the Hurricane Wind Intensity Size Index (HWISI) was 29.0.  Hurricane Sally was capable of causing regional serious damage.  The winds were pushing water toward the coast and a storm surge of 9 to 12 feet (3 to 4 meters) was possible.

Hurricane Sally will move slowly northeast across Northwest Florida and Southeast Alabama.  Sally will slowly weaken as it moves inland, but it will cause widespread power outages in those areas.  Since Hurricane Sally will move slowly, it will drop heavy rain.  Flash Flood Watches extend from the Gulf Coast to Georgia and North Carolina.

Elsewhere over the Atlantic Ocean, Teddy rapidly intensified into a Category 2 hurricane, Hurricane Paulette passes south of Newfoundland and Tropical Storm Vicky moved farther away from the Cabo Verde Islands.  At 5:00 a.m. EDT on Wednesday the center of Hurricane Teddy was located at latitude 15.4°N and longitude 49.0°W which put it about 820 miles (1315 km) east of the Lesser Antilles.  Teddy was moving toward the northwest at 12 m.p.h. (19 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 976 mb.

At 5:00 a.m. EDT on Wednesday the center of Hurricane Paulette was located at latitude 41.9°N and longitude 49.1°W which put it about 385 miles (620 km) south-southeast of Cape Race, Newfoundland.  Paulette was moving toward the east-northeast at 29 m.p.h. (46 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 966 mb.

At 5:00 a.m. EDT on Wednesday the center of Tropical Storm Vicky was located at latitude 21.6°N and longitude 33.9°W which put the center about 755 miles (1215 km) west-northwest of the Cabo Verde Islands.  Vicky was moving toward the west-northwest at 9 m.p.h. (15 km/h).  The maximum sustained wind speed was 50 m.p.h. (80 km/h) and there were ind gusts to 65 m.p.h. (105 km/h).  The minimum surface pressure was 1004 mb.

Hurricane Sally Continues to Grind Slowly Toward Mobile

Hurricane Sally continued to grind its way slowly north toward Mobile on Tuesday afternoon.  At 5:00 p.m. EDT on Tuesday the center of Hurricane Sally located at latitude 29.5°N and longitude 88.1°W which put it about 85 miles (135 km) south of Mobile, Alabama.  Sally was moving toward the north at 2 m.p.h. (3 km/h).  The maximum sustained wind speed was 80 m.p.h. (130 km/h) and there were wind gusts to 100 m.p.h. (120 km/h).  The minimum surface pressure was 979 mb.

A Hurricane Warning was in effect for the portion coast from Bay St. Louis, Mississippi to Navarre, Florida.  Tropical Storm Warnings were in effect for the portions of the coast from Grand Isle, Louisiana to Bay St. Louis, Mississippi and from Navarre to Indian Pass, Florida.

Hurricane Sally did not change a lot on Tuesday.  A ragged eye with a diameter of 30 miles (48 km) was at the center of Sally.  The eye was surrounded by a broken 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 Hurricane Sally.  The strongest rainbands were in the northern half of the hurricane.  Bands in the southern half of the circulation consisted primarily of showers and lower clouds.  Storms near the center generated upper level divergence which pumped mass away to the northeast of the hurricane.  Winds to hurricane force extended out 40 miles (65 km) from the center of circulation.  Winds to tropical storm force extended out 130 miles (210 km) from the center.

Hurricane Sally was moving around the western end of a subtropical high pressure system over the western Atlantic Ocean.  The steering winds around Sally were weak, but they were pushing the hurricane slowly toward the north.  On its anticipated track Hurricane Sally will make landfall near Mobile Bay on Wednesday morning.  Any small wobble to the left or to the right could affect the place of landfall.  An upper level trough over the western U.S. will move east during the next couple of days.  The trough will turn Sally more toward the east after it moves inland.

The intensity of Hurricane Sally may not change much in the 12 hours until it makes landfall.  Sally will move over water where the Sea Surface Temperature is near 30°C.  However, the circulation will pull drier air into the southern part of the hurricane.  In addition, the eastern edge of the approaching upper level trough will produce some vertical wind shear.  The positive impact of warm water will be balanced by the negative impacts of drier air and slight shear.  So, the environment is likely to be neutral for intensification.  Hurricane Sally will start to weaken after the center moves inland.

Hurricane Sally was already producing water rises along the Central Gulf Coast.  A storm surge of up to 6 to 9 feet (2 to 3 meters) could occur near and to the east of where the center makes landfall.  Sally will cause mostly minor wind damage.  A prolonged period of strong winds could cause widespread power outages over southwestern Alabama and northwestern Florida.  Since Hurricane Sally will be moving slowly, it will drop heavy rain over southern Alabama and northwestern Florida.  Flash flooding will be likely in areas that receive the heaviest rainfall.

Elsewhere over the Atlantic Ocean, Hurricane Paulette continued to speed away from Bermuda, Tropical Storm Teddy was well on its way to becoming a hurricane and Tropical Storm Vicky was weakening over the eastern Atlantic.  At 5:00 p.m. EDT on Tuesday the center of Hurricane Paulette was located at latitude 39.5°N and longitude 55.0°W which put it about 740 miles (1190 km) northeast of Bermuda.  Paulette was moving toward the east-northeast at 30 m.p.h. (48 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 970 mb.

At 5:00 p.m. EDT on Tuesday the center of Tropical Storm Teddy was located at latitude 14.6°N and longitude 47.9°W which put it about 895 miles (1440 km) east of the Lesser Antilles.  Teddy was moving toward the west-northwest at 13 m.p.h. (20 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 997 mb.

At 5:00 p.m. EDT on Tuesday the center of Tropical Storm Vicky was located at latitude 21.2°N and longitude 32.1°W which put it about 640 miles (1030 km) northwest of the Cabo Verde Islands.  Vicky was moving toward the west-northwest at 12 m.p.h. (19 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.

Hurricane Sally Grinds Slowly Toward the Gulf Coast

Hurricane Sally ground its way slowly toward the Gulf Coast on Monday night.  At 11:00 p.m. EDT on Monday the center of Hurricane Sally was located at latitude 28.9°N and longitude 87.6°W which put it about 90 miles (145 km) east of the Mouth of the Mississippi River.  Sally was moving toward the west-northwest at 3 m.p.h. (5 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 986 mb.

A Hurricane Warning was in effect for the portion of the coast from Grand Isle, Louisiana to Navarre,, Florida including New Orleans, Lake Pontchartrain and Lake Maurepas.  Tropical Storm Warnings were in effect for the portions of the coast from Morgan City, to Grand Isle, Louisiana and from Navarre to Indian Pass, Florida.

After intensifying rapidly earlier on Monday, Hurricane Sally exhibited a more steady state on Monday evening.  There was a circular eye with a diameter of 16 miles (26 km) at the center of Sally.  The eye was surrounded by a ring of strong thunderstorms and the strongest winds were occurring in that ring of storms.  There was a break in the south side of the ring.  The circulation of Hurricane Sally pulled some drier air around the southern side of the core.  The drier air may have contributed to the break in the eyewall.  Storms near the core generated upper level divergence which pumped mass away to the north and the east of the hurricane.

The circulation around Hurricane Sally was relatively small.  Winds to hurricane force extended out 45 miles (75 km) from the center of circulation in the northeastern quadrant of Sally.  Elsewhere, hurricane force winds were occurring mainly in the eyewall.  Winds to tropical storm force extended out 130 miles from the center of circulation.  The winds were weakest in the southwestern quadrant of the hurricane.  The Hurricane Intensity Index (HII) for Hurricane Sally was 16.5.  The Hurricane Size Index (HSI) was 9.5 and the Hurricane Wind Intensity Size Index (HWISI) was 27.0.  Sally was capable of causing localized serious damage.

Hurricane Sally will move through an environment mostly favorable for intensification during the next 12 hours.  Sally will move over water where the Sea Surface Temperature is near 30°C.  It will be in a region where the upper level winds are weak and there will be little vertical wind shear.  Two other factors could inhibit further intensification of Hurricane Sally.  The drier air in the southern part of the circulation could limit the development of thunderstorms in that part of Sally.  The fact that Hurricane Sally is moving slowly means that it could mix cooler water to the surface which might reduce the energy available to drive the hurricane.  Even with the two inhibiting factors, Sally could intensify again on Tuesday.

Hurricane Sally will move around the western end of a subtropical high pressure system during the next 36 hours.  The steering currents are weak in that region and Sally will move slowly.  The slow movement of Hurricane Sally near the Gulf Coast means that any slight wobbles could affect the location of landfall.  On its anticipated track Hurricane Sally could approach the coasts of Mississippi and Alabama on Tuesday night.  A wobble to the left could bring Sally ashore in southeastern Louisiana while a wobble to the right would bring it closer to Northwest Florida.

Hurricane Sally will bring strong winds to the coast of Mississippi and Alabama.  Where the winds blow water toward the coast, Hurricane Sally could cause a storm surge of up to 12 feet (4 meters).  Hurricane Sally could drop nearly a foot (0.3 m) of rain on parts of southern Mississippi and Alabama.  Flash Flood Watches have been issued for parts of southern Mississippi, Alabama and Northwest Florida.

Elsewhere, Hurricane Paulette was speeding away from Bermuda, and Tropical Storms Teddy and Vicky organized over the eastern Atlantic Ocean.  At 11:00 p.m. EDT on Monday the center of Hurricane Paulette was located at latitude 35.7°N and longitude 62.3°W which put it about 275 miles (440 km) north-northeast of Bermuda.  Paulette was moving toward the northeast at 17 m.p.h. (28 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 965 mb.

At 11:00 p.m. EDT on Monday the center of Tropical Storm Teddy was located at latitude 13.2°N and longitude 45.0°W which put it about 1100 miles (1770 km) east of the Lesser Antilles.  Teddy was moving toward the west at 13 m.p.h. (20 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.

At 11:00 p.m. EDT on Monday the center of Tropical Storm Vicky was located at latitude 19.5°N and longitude 29.9°W which put it about 455 miles (735 km) west-northwest of the Cabo Verde Islands.  Vicky was moving toward the mprthwest 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 1000 mb.

Sally Rapidly Strengthens to a Hurricane, Paulette Hits Bermuda

Former Tropical Storm Sally rapidly strengthened into a hurricane on Monday morning and Hurricane Paulette hit Bermuda.  At 12:30 p.m. EDT on Monday the center of Hurricane Sally was located at latitude 28.7°N and longitude 87.0°W which put it about 130 miles (210 km) east-southeast of the Mouth of the Mississippi River.  Sally was moving toward the west-northwest at 7 m.p.h. (11 km/h).  The maximum sustained wind speed was 90 m.p.h. (145 km/h) and there were wind gusts to 110 m.p.h. (175 km/h).  The minimum surface pressure was 986 mb.

A Hurricane Warning was in effect for the portion of the coast from Morgan City, Louisiana to the Alabama/Florida border including New Orleans, Lake Pontchartrain, and Lake Maurepas.  Tropical Storms Warnings were in effect for the portions of the coast from Intracoastal City to Morgan City Louisiana and from the Alabama/Florida border to Indian Pass, Florida.  A Tropical Storm Watch was in effect for the portion of the coast from Indian River Pass to the Ochlockonee River, Florida.

Formerly Tropical Storm Sally intensified rapidly on Monday morning.  A circular eye formed at the center of Hurricane Sally.  The eye was surrounded by a ring of very strong thunderstorms and the strongest winds were occurring in that ring of storms.  Bands of showers and thunderstorms were revolving around the core of Sally.  Storms near the core generated strong upper level divergence which pumped mass away from the hurricane in all directions.  Winds to hurricane force extend out 25 miles (40 km) from the center of circulation.  Winds to tropical storm force extend out 130 miles (210 km) from the center.

Hurricane Sally will move through an environment favorable for intensification during the next 18 hours.  Sally 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 Sally will continue to intensify and it is likely to strengthen rapidly.  Sally could intensify into a major hurricane during the next 24 hours.

Hurricane Sally will move around the western end of a subtropical high pressure system the extends from the western Atlantic Ocean over the southeastern U.S.  The high will steer Sally toward the west-northwest during the next 12 hours.  Hurricane Sally will move more toward the north on Tuesday when it reaches the western end of the high.  Sally will move more slowly when it reaches the western end of the high pressure system.  On its anticipated track Hurricane Sally will approach the Mouth of the Mississippi River on Monday night.  Sally could make landfall on the coast of Mississippi on Tuesday,

Hurricane Sally will bring strong winds to southeastern Louisiana and the coast of Mississippi.  Sally could generate a storms surge of 9 to 15 feet (3 to 5 meters) along the coast.  Hurricane Sally will also drop very heavy rain and flash floods are likely.

Elsewhere, Hurricane Paulette hit Bermuda on Monday morning.  There were reports of minor wind damage and power outages.  At 11:00 a.m. EDT on Monday the center of Hurricane Paulette was located at latitude 33.2°N and longitude 64.8°W which put it about 65 miles (105 km) north of Bermuda.  Paulette was moving toward the north at 14 m.p.h. (22 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 970 mb.  A Hurricane Warning remained in effect for Bermuda.

Tropical Storm Sally Strengthens, Hurricane Warning Includes New Orleans

Tropical Storm Sally strengthened on Sunday morning and a Hurricane Warning included the city of New Orleans.  At 11:00 a.m. EDT on Sunday the center of Tropical Storm Sally was located at latitude 27.5°N and longitude 84.9°W which put it about 280 miles (450 km) east-southeast of the Mouth of the Mississippi River.  Sally was moving toward the west-northwest at 12 m.p.h. (16 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 998 mb.

A Hurricane Warning was in effect for the portion of the coast from Morgan City, Louisiana to Ocean Springs, Mississippi including New Orleans, Lake Pontchartrain and Lake Maurepas.  A Hurricane Watch was in effect for the portion of the coast from Intracoastal City to Morgan City, Louisiana.  A Hurricane Watch was also in effect for the portion of the coast from Ocean Springs, Mississippi to the Alabama/Florida border.  A Tropical Storm Warning was in effect for the portion of the coast from Ocean Springs, Mississippi to Indian Pass, Florida.  A Tropical Storm Watch was in effect for the portion of the coast from Indian Pass to Ochlockonee River, Florida.

Data from an Air Force Reserve Hurricane Hunter plane indicated that Tropical Storm Sally was strengthening on Sunday morning.  Even though Tropical Storm Sally was strengthening, the distribution of thunderstorms was asymmetrical.  The strongest thunderstorms were occurring around the center of circulation and in bands in the eastern side of Sally.  Bands in the western half of the circulation still consisted primarily of showers and lower clouds.  Storms near the center of Tropical Storm Sally generated upper level divergence which pumped mass away from the tropical storm.  Winds to tropical storm force extended out 90 miles (145 km) from the center of circulation.

Tropical Storm Sally will move through an environment favorable for intensification during the next 36 hours.  Sally will move over water where the Sea Surface Temperature is near 30°C.  It will move under an upper level ridge where the winds are weak.  There will be little vertical wind shear.  Tropical Storm Sally is likely to strengthen into a hurricane during the next 24 hours.  Sally could intensify more rapidly once an inner core with an eye and an eyewall forms.  There is a chance that it could strengthen into a major hurricane.

Tropical Storm Sally will move around the western end of a subtropical high pressure system over the western Atlantic Ocean.  The high will steer Sally toward the west-northwest during the next 36 hours.  On its anticipated track Sally could approach southeastern Louisiana on Monday night.  Sally will move more toward the north and it could slow down when it reaches the western end of the high.  Sally will have the potential to cause serious damage.  It could cause a storm surge of 9 to 12 feet (3 to 4 meters).  If Sally moves slowly, it will drop heavy rain that will cause flash floods.

Elsewhere, Hurricane Paulette continued to move toward Bermuda, Tropical Depression Rene weakened and Tropical Depression Twenty strengthened.  At 11:00 a.m. EDT on Sunday the center of Hurricane Paulette was located at latitude 29.9°N and longitude 61.9°W which put it about 240 miles (385 km) southeast of Bermuda.  Paulette was moving toward the northwest at 14 m.p.h. (22 km/h).  The maximum sustained wind speed was 80 m.p.h. (130 km/h) and there were wind gusts to 100 m.p.h. (160 km/h).  The minimum surface pressure was 976 mb.  A Hurricane Warning was in effect for Bermuda.

At 11:00 a.m. EDT on Sunday the center of Tropical Depression Rene was located at latitude 26.8°N and longitude 47.6°W which put it about 1150 miles (1855 km) northeast of the Northern Leeward Islands.  Rene was moving toward the 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 1011 mb.

At 11:00 a.m. EDT on Sunday the center of Tropical Depression Twenty was located at latitude 12.3°N and longitude 36.4°W which put it about 1680 miles (2705 km) east of the Northern Leeward Islands.  The depression was moving toward the west-northwest 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 1006 mb.

Tropical Storm Sally Prompts Hurricane Watch for Gulf Coast

Expected intensification of Tropical Storm Sally prompted the National Hurricane Center to issue a Hurricane Watch for a portion of the Gulf Coast.  At 5:00 p.m. EDT on Saturday the center of Tropical Storm Sally was located at latitude 25.7°N and longitude 81.9°W which put it about 30 miles (50 km) south-southwest of Naples, Florida.  Sally 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.

A Hurricane Watch was issued for the portion of the coast from Grand Isle, Louisiana to the Alabama/Florida border including New Orleans, Lake Pontchartrain and Lake Maurepas.  A Tropical Storm Watch was in effect for the portion of the coast from the Ochlockonee River, Florida to the Alabama/Florida Line.

The circulation around Tropical Storm Sally continued to get better organized on Saturday afternoon as it moved slowly away from Southwest Florida.  Bands of showers and thunderstorms strengthened in the eastern half of Sally and the strongest winds were occurring in those bands.  Bands in the western half of the tropical storm consisted primarily of showers and lower clouds.  Storms near the center of circulation began to generate upper level divergence which pumped mass away from the tropical storm.  Winds to tropical storm force extended out 80 miles (130 km) southeast of the center of Tropical Storm Sally.  Winds in the other parts of the circulation were blowing at less than tropical storm force.

Tropical Storm Sally will move through an environment favorable for intensification during the next 48 hours.  Sally will move over water where the Sea Surface Temperature is near 30°C.  It will move under an upper level ridge where the winds are weak and there will be little vertical wind shear.  Tropical Storm Sally will intensify and it could strengthen into a hurricane by Monday.  Once an inner core forms, Sally could intensify rapidly and there is a chance it could strengthen into a major hurricane.  The environment will not be as favorable for rapid intensification as it was for Hurricane Laura, but rapid strengthening is possible.

Tropical Storm Sally will move around the western end of a subtropical high pressure system over the Atlantic Ocean.  The high will steer Sally toward the northwest during the next 48 hours.  On its anticipated track Tropical Storm Sally could approach the Gulf Coast by Monday night or Tuesday.  Sally may move more slowly toward the north when it nears the western end of the high pressure system.  It will almost certainly be a hurricane when it makes landfall.  Sally could cause a storm surge of 10 feet (3 meters).  Since it will be moving slowly, Sally could drop very heavy rain and fresh water flooding will be possible.

Elsewhere, Tropical Storm Paulette continued toward Bermuda, Tropical Depression Rene churned in the Central Atlantic and Tropical Depression Twenty formed over the Eastern Atlantic.  At 5:00 p.m. EDT on Saturday the center of Tropical Storm Paulette was located at latitude 28.4°N and longitude 58.5°W which put it about 460 miles (740 km) southeast of Bermuda.  Paulette was moving toward the northwest at 15 m.p.h. (24 km/h).  The maximum sustained wind speed was 70 m.p.h. (110 km/h) and there were wind gusts to 85 m.p.h. (135 km/h).  The minimum surface pressure was 987 mb.  A Hurricane Warning was in effect for Bermuda.

At 5:00 p.m. EDT on Saturday the center of Tropical Depression Rene was located at latitude 24.3°N and longitude 45.6°W which put it about 1200 miles (1935 km) east-northeast of the Northern Leeward Islands.  Rene was moving toward the northwest at 14 m.p.h. (22km/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.

At 5:00 p.m. EDT on Saturday the center of Tropical Depression Twenty was located at latitude 11.4°N and longitude 33.5°W which put it about 2030 miles (3265 km) east of the Northern Leeward Islands.  The depression 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 1005 mb.