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Tropical Storm Isaac (09L) Near Florida – August 27th, 2012

28.3N 84.8W

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

Tropical Storm Isaac (09L) – August 26th, 2012

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Track of Tropical Storm Isaac (09L) - August 27th, 2012 © Univ. of Wisconsin

Track of Tropical Storm Isaac

The National Hurricane Center began tracking a tropical wave off the coast of Africa on August 17.

It started to become more concentrated on August 18, with further organization beginning later that day as it headed into favorable environmental conditions for development.

The circulation continued to intensify in the next couple of days. After acquiring more deep convection, the National Hurricane Center classified the wave as a tropical depression on August 21 at 5:00 a.m. AST (0900 UTC). It was upgraded to Tropical Storm Isaac at 5:00 p.m. AST (2100 UTC) August 21.

As of 4 p.m. CDT (2100 UTC) August 27, Tropical Storm Isaac (09L) is located within 15 nautical miles of 26.1°N 85.9°W, about 255 mi (410 km) south-southwest of Apalachicola, Florida and about 280 mi (450 km) southeast of the mouth of the Mississippi River.

Maximum sustained winds are 55 knots (65 mph, 100 km/h), with stronger gusts. Minimum central pressure is 984 mbar (hPa; 29.06 InHg), and the system is moving northwest at 12 kt (14 mph, 22 km/h). Tropical storm force winds extend outward up to 205 miles (335 km) from the center of Isaac.

Tropical Storm Debby (04L) South-southwest of Apalachicola, Florida, USA

29.7N 84.9W

June 26th, 2012 Category: Tropical Storms

Tropical Storm Debby - June 25th, 2012

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Track of TS 04L - June 25th, 2012 © Univ. of Wisconsin

Track of TS 04L

A tropical disturbance developed into Tropical Storm Debby on the afternoon of June 23 in the Gulf of Mexico, becoming the earliest 4th storm on record in the Atlantic Basin. Debby moved sluggishly throughout June 24 and into June 25, at times becoming stationary. Debby’s strength did not increase as much as expected because of interference from an upper-level low on its western side that cut off its outflow.

As of 4 p.m. CDT (2100 UTC) June 25, Tropical Storm Debby is located within 20 nautical miles of 29.3°N 85.1°W, about 30 mi (45 km) south-southwest of Apalachicola, Florida. Maximum sustained winds are 40 knots (45 mph, 75 km/h), with stronger gusts. Minimum central pressure is 993 mbar (hPa; 29.32 InHg), and the system is moving NE at 4 kt (5 mph; 8 km/h). Tropical storm force winds extend outward up to 230 miles (370 km) from the center of Debby.