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High Destructive Potential of Hurricane Sandy (18L), Eastern USA – October 29th, 2012

34.8N 77W

October 29th, 2012 Category: Image of the day, Tropical Cyclones

Hurricane Sandy (18L) – October 28th, 2012

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Track of Hurricane Sandy (18L) - October 28th, 2012 © Univ. of Wisconsin

Track of TS 18L

As of 5 p.m. EDT (2100 UTC) October 28, Hurricane Sandy is located within 20 nautical miles of 32.4°N 71.3°W, about 270 mi (435 km) east-southeast of Cape Hatteras, North Carolina and about 530 mi (850 km) south-southeast of New York City.

Maximum sustained winds are 65 knots (75 mph, 120 km/h), with stronger gusts. Minimum central pressure is 952 mbar (hPa; 28.11 InHg), and the system is moving northeast at 13 kt (15 mph, 24 km/h). Hurricane force winds extend up to 175 miles (280 km) from the center of Sandy, and tropical storm force winds up to 520 miles (835 km) from the center.

According to the Weather Channel, Hurricane Sandy appears destined to enter the history books as one of the most exceptional and potentially destructive storms to strike the Northeast in modern history.

Sandy, in terms of geographic size, is already the largest Atlantic hurricane of the past quarter-century. In a sign of how extraordinarily large Sandy is, a tropical storm warning is also in effect for Bermuda, while lakeshore flood warnings have been hoisted on parts of the Great Lakes including Chicago. The full extent of the storm is best observed in the full image.

Sandy has stayed close to the borderline between high-end tropical storm and low-end hurricane status, despite an impressively low central pressure. But despite the absence of sustained triple-digit winds, the huge breadth of Sandy’s circulation promises widespread disruption to life for tens of millions of Americans.

Sandy will produce its greatest impacts in the Northeast and the Mid-Atlantic Monday into Tuesday. A huge area of strong winds is blowing water toward the U.S. mainland. Already by Sunday evening, tides in some locations were 2 to 4 feet above normal from the Outer Banks of North Carolina north to eastern Long Island.

Sandy’s rain bands and gusty winds continue to expand across the Northeast. The heaviest rain was focused on the Mid-Atlantic as of late Sunday evening. Winds were gusting in excess of 40 mph in several locations along the Mid-Atlantic and Northeast coastline.

Numerous high wind warnings have been issued across the Northeast for Monday and Tuesday, along with a slew of flood watches and warnings both for storm-surge flooding at the coast and freshwater flooding from rainfall inland. Blizzard warnings have even been posted for the mountains of West Virginia. Tropical storm warnings are in effect for parts of the North Carolina coast. In addition, the National Hurricane Center is forecasting hurricane-force winds from the Maryland/Virginia border to Cape Cod.

Life-threatening storm surge flooding of over 10 feet will be possible in Long Island Sound, and surge up to 6 feet above ground level is expected for parts of coastal North Carolina if peak surge occurs at high tide. Many other East Coast locations can expect dangerous storm surge.

Hurricane Rafael (17L) South of Bermuda

21.1N 65.7W

October 16th, 2012 Category: Tropical Storms

Hurricane Rafael (17L) – October 14th, 2012

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Track of Hurricane Rafael (17L) - October 14th, 2012 © Univ. of Wisconsin

Track of TS 17L

As of 8 p.m. AST October 15 (0000 UTC October 16), Tropical Storm Rafael (17L) is located within 25 nautical miles of 24.5°N 65.7°W, about 545 mi (880 km) south of Bermuda.

Maximum sustained winds are 75 knots (85 mph, 140 km/h), with higher gusts. Minimum central pressure is 974 mbar (hPa; 28.76 InHg), and the system is moving north at 9 kt (10 mph, 17 km/h). Hurricane force winds extend outward up to 45 mi (75 km), and tropical storm force winds extend outward up to 205 miles (335 km) from the center of Rafael.

Tropical Storm Rafael (17L) North-Northwest of Puerto Rico

19.3N 65.8W

October 15th, 2012 Category: Tropical Storms

Tropical Storm Rafael (17L) – October 13th, 2012

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Track of Tropical Storm Rafael (17L) - October 14th, 2012 © Univ. of Wisconsin

Track of TS 17L

As of 11 p.m. AST October 14 (0300 UTC October 15), Tropical Storm Rafael (17L) is located within 25 nautical miles of 21.6°N 64.8°W, about 225 mi (365 km) north-northwest of San Juan, Puerto Rico, and about 760 mi (1220 km) south of Bermuda.

Maximum sustained winds are 60 knots (70 mph, 110 km/h), with higher gusts. Minimum central pressure is 989 mbar (hPa; 29.21 InHg), and the system is moving north-northwest at 9 kt (10 mph, 17 km/h). Tropical storm force winds extend outward up to 175 miles (280 km) from the center of Rafael.

Leslie (12L) Forecast to Regain Strength

22.3N 65.1W

September 7th, 2012 Category: Tropical Storms

Hurricane Leslie (12L) – September 6th, 2012

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Track of Hurricane Leslie (12L) - September 6th, 2012 © Univ. of Wisconsin

Track of TS 12L

As of 11 a .m. AST September 7 (1500 UTC September 7), Leslie (12L)   weakened to a tropical storm but is forecast to regain hurricane strength.

Tropical Storm Leslie is located within 20 nautical miles of 26.8°N 62.2°W, 410 Mi (660 KM) SSE of Bermuda. Maximum sustained winds are 70 MPH (110 KM/H), with stronger gusts. Minimum central pressure is 981 mbar (hPa; 28.97 InHg), and the system is stationary.
Tropical storm force winds extend outward up to 185 miles (295 km) for the center.

Leslie (12L) Strengthens to Hurricane Status

21.0N 64.4W

September 5th, 2012 Category: Tropical Cyclones

Hurricane Leslie (12L) – September 5th, 2012

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Track of Hurricane Leslie (12L) - September 5th, 2012 © Univ. of Wisconsin

Track of TS 12L

As of 1:45 p.m. AST (1745 UTC) September 5, Hurricane Leslie (12L)  is located within 20 nautical miles of 25.8°N 62.5°W, about 465 mi (750 km) south-southeast of Bermuda.

Maximum sustained winds are 65 knots (75 mph, 120 km/h), with stronger gusts. Minimum central pressure is 987 mbar (hPa; 29.15 InHg), and the system is moving north at 2 knots (2 mph, 4 km/h).
Tropical storm force winds extend outward up to 230 miles (370 km) from the center of Leslie. The hurricane force wind radius is not currently available, but probably extends outward about 10-20 nautical miles (11-23 miles or 18-37 kilometers).

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