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Area of Low Pressure West of Cape Verde Islands

18.8N 28.5W

August 11th, 2012 Category: Tropical Storms

Low Pressure System – August 11th, 2012

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Low Pressure System - August 11th, 2012 © Univ. of Wisconsin

Low Pressure System

A broad area of low pressure located over the far eastern Atlantic about 325 miles northwest of the Cape Verde islands is producing minimal shower activity (click here for previous images of this system).

The low is moving over cool waters, and significant development is not anticipated during the next couple of days. This system has a low chance (10 percent) of becoming a tropical cyclone during the next 48 hours as it moves west-northwestward at about 20 mph. Visible in the upper right corner (best observed upon opening full image) is some dust blowing off the coast of West Africa.

Low Pressure System and Dust Near Cape Verde Islands – August 10th, 2012

25.1N 18.7W

August 10th, 2012 Category: Dust Storms, Image of the day, Tropical Storms

Low Pressure System – August 10th, 2012

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Low Pressure System - August 10th, 2012 © Univ. of Wisconsin

Low Pressure System

Shower and thunderstorm activity is diminishing near a low pressure system located over the far eastern Atlantic just to the east of the Cape Verde Islands. Also visible near the Canary Islands in the upper right quadrant is dust from the Sahara Desert Blowing Off the Coast.

The low is moving toward colder water, and the likelihood of development over the next couple of days appears to be decreasing. This system has a medium chance (30 percent) of becoming a tropical cyclone during the next 48 hours as it moves west-northwestward at about 20 mph. Gusty winds and locally heavy rains are still possible over portions of the Cape Verde Islands through Saturday morning.

Tropical Storm Florence West of Cape Verde Islands

16.0N 31W

August 4th, 2012 Category: Tropical Storms

Tropical Storm Florence – August 4th, 2012

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Tropical Storm Florence - August 4th, 2012 © Univ. of Wisconsin

Tropical Storm Florence

Late on August 1, a vigorous tropical wave emerged off the coast of Africa. The wave developed a mid-level spin, and on August 2, the National Hurricane Center began to monitor the wave. The wave slowly organized, and on August 4, the storm became Tropical Depression Six. The system then strengthened into Tropical Storm Florence.

As of 11 a.m. AST (1500 UTC) August 4, Tropical Storm Florence (06L) is located within 30 nautical miles of 14.8°N 30.6°W, about 415 mi (665 km) west of the southernmost Cape Verde islands. Maximum sustained winds are 40 knots (45 mph, 75 km/h), with stronger gusts. Minimum central pressure is 1002 mbar (hPa; 29.59 InHg), and the system is moving west-northwest at 14 kt (16 mph, 26 km/h). Tropical storm force winds extend outward up to 45 miles (75 km) from the center of Florence.

Low Pressure System Near Cape Verde Has Medium Chance of Becoming Tropical Storm

16.2N 24.4W

August 20th, 2011 Category: Tropical Storms

Low Pressure System Near Cape Verde - August 19th, 2011

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Track of Low Pressure System - August 19th, 2011 © Univ. of Wisconsin

Track of Low Pressure System

A large but disorganized low pressure system is centered about 100 miles southeast of the Cape Verde islands. Although upper-level winds are currently favorable for some development, this system is expected to encounter a more stable environment with drier air by Sunday.

This system has a medium chance (40 percent) of becoming a tropical cyclone during the next 48 hours as it moves to the west-northwest at 10 to 15 mph. Regardless of development, locally heavy rain and strong gusty winds are possible in the Cape Verde islands Friday night through Saturday.

Well-Defined Low Pressure System South of Cape Verde

10.2N 24.5W

August 11th, 2011 Category: Tropical Storms

Low Pressure System Near Cape Verde - August 11th, 2011

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Track of Low Pressure System - August 11th, 2011 © Univ. of Wisconsin

Track of TY 12W

A well-defined low pressure system located about 275 miles south of the southern Cape Verde islands is producing a large area of cloudiness and scattered thunderstorms.

Environmental conditions are expected to gradually become more conducive for development over the next several days as it moves westward at 15 to 20 mph. Tthe system has a medium chance (40 percent) of becoming a tropical cyclone during the next 48 hours.