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Andrea (01L) Merges With Frontal Zone, USA

33.3N 80.6W

June 8th, 2013 Category: Tropical Storms MODISTerra

Tropical Storm Andrea (01L) – June 8th, 2013

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Track of Tropical Storm Andrea (01L) - June 6th, 2013 © Univ. of Wisconsin

Track of TC 01L

By 2140 UTC on June 6, Tropical Storm Andrea (01L) had made landfall in Dixie County, Florida about 10 miles (16 km) south of Steinhatchee.

After moving inland, the storm initially weakened quickly, with winds decreasing to 45 mph (75 km/h) by early on June 7. The National Hurricane Center then noted that extratropical transition was likely within 24 hours and “could occur sooner if the convective structure does not improve.”

By later on June 7, most of the convection became displaced to the northwest due to dry air. Around that time, the storm began accelerating northeastward at 26 mph (42 km/h) due to an approaching mid-latitude trough.

Andrea then became indistinguishable with a frontal zone over North Carolina. Based on surface observations and doppler radar, the National Hurricane Center declared the storm extratropical at 2100 UTC on June 7.

Andrea Becomes Post-Tropical, Moves Up East Coast, USA

32.5N 81.3W

June 8th, 2013 Category: Tropical Storms MODISTerra

Tropical Storm Andrea (01L) – June 7th, 2013

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Track of Tropical Storm Andrea (01L) - June 6th, 2013 © Univ. of Wisconsin

Track of TC 01L

As of 11 p.m. EDT June 7 (0300 UTC June 8), Post-tropical Cyclone Andrea (01L) is located within 30 nautical miles of 38.5°N 75.0°W, about 15 miles (25 km) north-northeast of Ocean City, Maryland and about 30 miles (45 km) south of Cape May, New Jersey.

Maximum sustained winds are 40 knots (45 mph, 75 km/h), with stronger gusts. Minimum central pressure is 997 mbar (hPa; 29.44 InHg), and the system is moving northeast at 31 knots (35 mph, 56 km/h). Tropical storm force winds extend outward up to 230 miles (370 km) from the center of Andrea.

Tropical Storm Andrea (01L) West of Florida

27.6N 87.1W

June 7th, 2013 Category: Tropical Storms AVHRRMetOp

Tropical Storm Andrea (01L) – June 6th, 2013

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Track of Tropical Storm Andrea (01L) - June 6th, 2013 © Univ. of Wisconsin

Track of TC 01L

As of 11 p.m. EDT (0300 UTC) June 6, Tropical Storm Andrea (01L) is located within 20 nautical miles of 30.3°N 82.4°W, about 40 miles (65 km) west of Jacksonville, Florida and about 65 miles (105 km) east-southeast of Valdosta, Georgia.

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 northeast at 13 knots (15 mph, 24 km/h). Tropical storm force winds extend outward up to 140 miles (220 km) from the center of Andrea.

Tropical Storm Andrea (01L) First of 2013 Atlantic Hurricane Season

25.1N 91W

June 6th, 2013 Category: Tropical Storms MODISAqua

Tropical Storm Andrea (01L) – June 6th, 2013

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Track of Tropical Storm Andrea (01L) - June 6th, 2013 © Univ. of Wisconsin

Track of TC 01L

In early June, the National Hurricane Center began monitoring an area of disturbed weather in the northwestward Caribbean Sea.

The system moved northward and slowly organized, despite strong wind shear. After a reconnaissance aircraft reported a closed circulation on June 5, the National Hurricane Center initiated advisories on Tropical Storm Andrea at 2200 UTC, while centered about 310 miles (500 km) southwest of Tampa, Florida.

Upon developing into a tropical cyclone on June 5, a tropical storm warning was issued from Boca Grande to the mouth of the Ochlockonee River in Florida. Additionally, a tropical storm watch was put into effect for Flagler Beach, Florida to Surf City, North Carolina. In Gulf Shores, Alabama, 10 swimmers had to be rescued due to strong rip currents on June 5.

Tropical Storm Alberto (01L) Near South Carolina and Georgia – May 20th, 2012

31.2N 80.4W

May 20th, 2012 Category: Image of the day, Tropical Storms

Tropical Storm Alberto (01L) - May 19th, 2012

Tropical Storm Alberto (01L) - May 20th, 2012

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Track of Tropical Storm Alberto (01L) - May 20th, 2012 © Univ. of Wisconsin

Track of TS 01L

On May 19, the National Hurricane Center determined that the low pressure area off of the coast of South Carolina had acquired tropical characteristics and began issuing advisories at 5:00 PM EDT. The initial intensity was set at 45 MPH, but an observation from a passing ship prompted the NHC to increase the strength to 60 MPH in an intermediate advisory issued at 6:50 PM.

Later that night Alberto began to suffer from southeasterly shear and dry air entrainment, which prompted the National Hurricane Center to lower the intensity to 50 MPH. Alberto held this intensity until 11:00 AM on Sunday when continued shear caused the center to become fully exposed and the convection associated to be pushed to the west of the circulation. The intensity was then lowered to 45 MPH pending a Hurricane Hunters reconnaissance mission scheduled for Sunday afternoon.

As of 5 p.m. EDT (2100 UTC) May 20, Tropical Storm Alberto (01L) is located within 15 nautical miles of 30.9°N 80°W, about 105 mi (170 km) southeast of Savannah, Georgia and about 130 mi (210 km) south of Charleston, South Carolina. Maximum sustained winds are 40 knots (45 mph, 75 km/h), with stronger gusts. Minimum central pressure is 1006 mbar (hPa; 29.71 InHg), and the system is moving southwest at 5 kt (6 mph, 9 km/h). Tropical storm force winds extend outward up to 60 miles (95 km) from the center of Alberto.

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