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Hurricane Sandy (18W) Threatening East Coast of USA

29.5N 80.5W

October 28th, 2012 Category: Tropical Cyclones

Hurricane Sandy (18L) – October 27th, 2012

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Track of Hurricane Sandy (18L) - October 27th, 2012 © Univ. of Wisconsin

Track of TS 18L

As of 5 p.m. EDT (2100 UTC) October 27, Hurricane Sandy is located within 25 nautical miles of 30.2°N 75.2°W, about 335 mi (540 km) east-southeast of Charleston, South Carolina and about 345 mi (555 km) south of Cape Hatteras, North Carolina.

Maximum sustained winds are 65 knots (75 mph, 120 km/h), with stronger gusts. Minimum central pressure is 961 millibars (hPa; 28.38 inHg), and the system is moving northeast at 11 kt (13 mph, 20 km/h). Hurricane force winds extend up to 105 miles (165 km) from the center of Sandy, and tropical storm force winds up to 520 miles (835 km) from the center.

Sandy continues to be a large and dangerous system and poses a major threat to portions of the Mid-Atlantic and Northeast. Residents from New England to New York, Pennsylvania, New Jersey, Delaware, Maryland, Virginia and West Virginia should begin to prepare for Sandy.

Effects from Sandy could potentially begin as early as Sunday and peak in intensity Monday into Tuesday. The latest projected path takes the center of Sandy into the Northeast coast between Long Island and the Del-Mar-Va Peninsula.

Hurricane Sandy (18L) Off Coast of Southeastern USA – October 27th, 2012

29.3N 78.5W

October 27th, 2012 Category: Image of the day, Tropical Storms

Hurricane Sandy (18L) – October 26th, 2012

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Track of Hurricane Sandy (18L) - October 26th, 2012 © Univ. of Wisconsin

Track of TS 18L

As of 5 p.m. EDT (2100 UTC) October 26, Hurricane Sandy is located within 25 nautical miles of 27.3°N 77.1°W, about 60 mi (100 km) north of Great Abaco Island and about 420 mi (670 km) south-southeast of Charleston, South Carolina.

Maximum sustained winds are 65 knots (75 mph, 120 km/h), with stronger gusts. Minimum central pressure is 971 mbar (hPa; 28.67 InHg), and the system is moving north at 6 kt (7 mph, 11 km/h). Hurricane force winds extend up to 35 miles (56 km) from the center of Sandy, and tropical storm force winds up to 275 miles (442 km) from the center.

Hurricane Sandy (18L) in Caribbean – October 26th, 2012

20.1N 72.1W

October 26th, 2012 Category: Tropical Storms

Hurricane Sandy (18L) – October 23rd, 2012

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Track of Hurricane Sandy (18L) - October 25th, 2012 © Univ. of Wisconsin

Track of TS 18L

Hurricane Sandy (18L) has developed from a tropical wave that was moving westward through the eastern Caribbean Sea on October 19.

On October 20, the system became better organized, although it weakened on October 21. However, by October 22, it became organized enough to earn the designation Tropical Depression Eighteen and was soon upgraded to Tropical Storm Sandy. The main image shows the storm as it was organizing.

The system has since been upgraded to hurricane status. As of 8 p.m. EDT October 25 (0000 UTC October 26), Hurricane Sandy is located within 20 nautical miles of 24.8°N 75.8°W, about 35 mi (55 km) southeast of Eleuthera; about 105 mi (170 km) east of Nassau, Bahamas.

Maximum sustained winds are 85 knots (100 mph, 160 km/h), with stronger gusts. Minimum central pressure is 965 mbar (hPa; 28.50 InHg), and the system is moving north-northwest at 15 kt (17 mph, 27 km/h). Hurricane force winds extend up to 35 miles (55 km) from the center of Sandy, and tropical storm force winds up to 205 miles (330 km) from the center.

Hurricane Rafael (17L) Completing Extra-Tropical Transitioning

46.0N 53.9W

October 18th, 2012 Category: Tropical Cyclones

Hurricane Rafael (17L) – October 18th, 2012

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Track of Hurricane Rafael (17L) - October 18th, 2012 © Univ. of Wisconsin

Track of TS 17L

A tropical wave exited the coast of Africa on October 5. On October 8, the NHC first monitored a tropical wave about halfway between Cape Verde and the coast of South America, which had a weak low pressure area and elongated convection. The thunderstorms gradually became more concentrated, and the system became better organized.

By October 10, the area was producing tropical storm-force winds in its northern periphery. Early on October 12, the system crossed into the eastern Caribbean Sea, passing near Saint Lucia. Later that day, a Hurricane Hunters flight confirmed a closed circulation, which prompted the NHC to initiate advisories on Tropical Storm Rafael (17L) about 125 mi (200 km) west-southwest of Dominica. At the time, the deepest convection was located to the east and southeast of the center, due to southwesterly wind shear from an upper-level low near Puerto Rico.

A weakness in the subtropical ridge allowed Rafael to track north-northwestward, and conditions were expected to favor further intensification. On the morning of October 13th, Rafael was observed to be moving north-westward followed by a slight left turn caused by a rebuilding mid–level ridge. On October 15, 2012, Rafael strengthened into a Category 1 hurricane with winds of 75 knots (85 mph, 140 km/h) as it was moving northeast. Rafael’s center was found to be relocated which has resulted in a track proceeding farther to the east. Rafael slowly intensified further, and reached its peak winds of 90 mph. Soon after, it began to weaken very slowly as it entered an environment of very strong vertical wind shear and cooler sea surface temperatures. During the afternoon hours of October 17, Rafael transitioned into a post-tropical cyclone, but remained powerful.

Paul (16E) Upgraded to Hurricane Status

15.4N 117.1W

October 17th, 2012 Category: Tropical Cyclones

Tropical Storm Paul (16E) – October 13th, 2012

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Track of Tropical Storm Paul (16E) - October 14th, 2012 © Univ. of Wisconsin

Track of TS 16E

As of 5 p.m. PDT October 16 (0000 UTC October 17), Hurricane Paul (16E) is located within 15 nautical miles of 25.2°N 112.5°W, about 30 mi (50 km) north-northwest of San Lazaro, Mexico.

Maximum sustained winds are 60 knots (70 mph, 110 km/h), with stronger gusts. Minimum central pressure is 986 mbar (hPa; 29.12 InHg), and the system is moving north at 12 kt (14 mph, 22 km/h). Tropical storm force winds extend outward up to 115 mi (185 km) from the center of Paul.

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