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Low Pressure System Near Windward Islands Could Become Tropical Cyclone

13.4N 61.6W

September 11th, 2010 Category: Tropical Storms

Low Pressure System Near Windward Islands - September 10th, 2010

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Track of Low Pressure System - September 10th, 2010 © Univ. of Wisconsin

Track of Low Pressure System

Shower and thunderstorm activity in association with a low pressure system near the Windward Islands remains disorganized. However, data from another national science foundation reconnaissance mission into and around this system continue to indicate a well-defined circulation.

Environmental conditions remain conducive for a tropical depression to form during the next couple of days as the system moves slowly west-northwestward. There is a medium chance (50 percent) of this system becoming a tropical cyclone during the next 48 hours.

Vigorous Tropical Wave East-Southeast of Windward Islands – October 28th, 2010

4.8N 45.4W

October 28th, 2010 Category: Image of the day, Tropical Storms

Area of Low Pressure - October 27th, 2010

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Track of Low Pressure Area

A vigorous tropical wave is located over the tropical atlantic about 1100 miles east-southeast of the Windward Islands.

Environmental conditions appear favorable for some slow development of this system during the next couple of days.

There is a low chance (20 percent) of this system becoming a tropical cyclone during the next 48 hours as it moves westward or west-northwestward at 15 to 20 mph.

Area of Low Pressure Becomes Tropical Storm Karl (13L) by Yucatan Peninsula

20.4N 86.6W

September 15th, 2010 Category: Tropical Storms

Tropical Storm Karl (13L) - September 14th, 2010

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Track of TS 13L - September 14th, 2010 © Univ. of Wisconsin

Track of TS 13L

The area of low pressure over the Caribbean Sea was declared Tropical Storm Karl while at a distance of 315 miles east of the Yucatán Peninsula.

As of 11 p.m. EDT September 14 (0300 UTC September 15), the center of Tropical Storm Karl was located within 15 nautical miles of 18.6°N 85.5°W, about 185 miles (295 km) east of Chetumal, Mexico.

Maximum sustained winds are estimated to be 45 mph (75 km/h), with stronger gusts. Minimum central pressure is estimated at 999 mbar (hPa; 29.50 InHg), and the system is moving west-northwest at 15 mph (24 km/h). Tropical storm force winds extend up to 25 miles (40 km) from the center of Karl.

Low Pressure System in Caribbean Sea Situated by Hispaniola

18.1N 69.8W

September 13th, 2010 Category: Tropical Storms

Low Pressure System Near Hispaniola - September 12th, 2010

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Track of Low Pressure System - September 12th, 2010 © Univ. of Wisconsin

Track of Low Pressure System

Aircraft data from NOAA and NASA research missions within the area of disturbed weather over the central Caribbean Sea suggest that the system may not have a well-defined center of circulation.

However, the disturbance is still producing a large and disorganized area of showers and thunderstorms which could cause locally heavy rainfall in portions of Puerto Rico, Hispaniola, Jamaica and Cuba during the next day or two. These rains could cause life-threatening flash floods and mud slides, especially in mountainous terrain.

There is a medium chance (40 percent) that this system could become a tropical cyclone during the next 48 hours as it moves west-northwestward at 10 to 15 mph toward the northwestern Caribbean Sea.

High Chance of Tropical Cyclone Formation Over Atlantic Ocean

8.9N 41.2W

September 20th, 2011 Category: Tropical Storms

Low Pressure System - September 20th, 2011

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Track of Low Pressure System - September 20th, 2011 © Univ. of Wisconsin

Track of Low Pressure System

Cloudiness and thunderstorms associated with a large low pressure system located about 1500 miles east of the Windward Islands continue to show signs of organization.

Environmental conditions are expected to remain conducive for a tropical depression to form
later today or on Wednesday. This system has a high chance (70 percent) of becoming a tropical cyclone during the next 48 hours as it moves westward at 5 to 10 mph.