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Tropical Storm Julia (12L) Now Moving Quickly Northward

15.1N 46.1W

September 19th, 2010 Category: Dust Storms, Tropical Cyclones

Hurricane Julia (12L) - September 18th, 2010

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Track of TS 12L - September 18th, 2010 © Univ. of Wisconsin

Track of TS 12L

As of 11 p.m. AST September 18 (0300 UTC September 19), Tropical Storm Julia (12L) is located within 20 nautical miles of 32.4°N 51.9°W, about 1455 mi (2340 km) west-southwest of the Azores.

Maximum sustained winds are 45 knots (50 mph, 85 km/h), with stronger gusts. Minimum central pressure is 998 mbar (hPa; 29.47 InHg), and the system is moving north at 12 kt (14 mph, 22 km/h).

Tropical storm force winds extend outward up to 160 miles (260 km) from the center of Julia. Here, dust blowing off the western coast of Africa can be seen to the east of the storm (click here for previous articles).

Hurricane Julia (12L) Weakens Slightly

18.7N 40.5W

September 17th, 2010 Category: Tropical Cyclones

Hurricane Julia (12L) - September 16th, 2010

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Track of TS 12L - September 16th, 2010 © Univ. of Wisconsin

Track of TS 12L

As of 11 p.m. AST September 16 (0300 UTC September 17), Hurricane Julia (12L) is located within 30 nautical miles of 23.5°N 42.9°W, about 1375 mi (2210 km) southwest of the Azores.

Maximum sustained winds are 70 knots (80 mph, 130 km/h), with stronger gusts. Minimum central pressure is 983 mbar (hPa; 29.03 InHg), and the system is moving west-northwest at 21 kt (24 mph, 39 km/h).

Hurricane force winds extend up to 35 miles (55 km) from the center of Julia, and tropical storm force winds up to 115 miles (185 km) from the center.

Julia (12L) Strengthens to Category Two Hurricane

19.4N 26.4W

September 15th, 2010 Category: Tropical Cyclones

Hurricane Julia (12L) - September 14th, 2010

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Track of TS 12L - September 14th, 2010 © Univ. of Wisconsin

Track of TS 12L

During the night of September 14, an eye-like feature developed, and in fewer than 18 hours Julia (12L) intensified into a Category 1 hurricane. On early September 15, Julia further strengthened into a category two hurricane.

As of 11 p.m. AST September 14 (0300 UTC September 15), the center of Hurricane Julia is located within 20 nautical miles of 16.7°N 30.9°W, about 450 miles (725 km) west-northwest of the southernmost Cape Verde islands.

Maximum sustained winds are estimated to be 105 mph (165 km/h), with stronger gusts. Minimum central pressure is estimated at 974 mbar (hPa; 28.77 InHg), and the system is moving west-northwest at 9 mph (15 km/h).

Hurricane force winds extend up to 25 miles (35 km) from the center of Julia, and tropical storm force winds up to 105 miles (165 km) from the center.

Depression 12L Near Cape Verde Strengthens to Tropical Storm Julia

14.8N 21.5W

September 13th, 2010 Category: Tropical Storms

Tropical Storm Julia (12L) - September 12th, 2010

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Track of TS 12L - September 12th, 2010 © Univ. of Wisconsin

Track of TS 12L

At 11:00 PM AST (03:00 UTC), the center of Tropical Storm Julia (12L) was located near latitude 13.5 North, longitude 23.5 West. Julia is moving toward the west-northwest near 12 mph (19 km/hr).

This general motion is expected to continue through Monday, followed by a turn toward the northwest with a decrease in forward speed on Tuesday. On the forecast track, the center of Julia is expected to pass near the southernmost Cape Verde islands overnight and Monday.

Maximum sustained winds have increased to near 40 mph (65 km/hr) with higher gusts. Strengthening is forecast during the next couple of days and Julia could become a hurricane on Tuesday. Tropical storm force winds extend outward up to 70 miles (110 km) from the center. Estimated minimum central pressure is 1004 mb (29.65 inches).

Hazards affecting land include wind and rainfall. Tropical storm conditions are expected to spread over the
warning area overnight and early Monday. Julia is expected to produce total rain accumulations of 2 to 4 inches over much of the Cape Verde islands, with possible isolated maximum amounts of 8 inches. These rains could cause life-threatening flash floods and mudslides.

Dust Over Bay of Arguin and Ras Nouadhibou Peninsula, West Africa

21.5N 17.6W

September 16th, 2010 Category: Dust Storms

Dust Off West Coast of Africa - September 15th, 2010

A thick cloud of dust blows across dry northwestern Africa and over the Ras Nouadhibou Peninsula, divided between Morocco/Western Sahara (north) and Mauritania (south). The dust completely obscures the usually bright green waters of the Bay of Arguin, just south of the peninsula.

Upon opening the full image, the Canary Islands can be seen to the north, as well as the Cape Verde Archipelago to the south. West of Cape Verde, on the left edge of the full image, is some convection associated with Hurricane Julia (12L), which recently passed by the islands.