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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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