Low Pressure System Approaches Southeast U.S.

A surface low pressure system that developed under the eastern side of an upper level low was approaching the southeastern U.S. on Monday morning. At 8:00 a.m. EDT on Monday the center of the low pressure system which was designated as Invest 96L was located at latitude 31.6°N and longitude 77.6°W which put it about 140 miles (220 km) southeast of Charleston, South Carolina. The low pressure system was moving toward the west-northwest at 17 m.p.h. (28 km/h). The maximum sustained wind speed was 35 m.p.h. (55 km/h) and there were wind gusts to 45 m.p.h. (75 km/h). The minimum surface pressure was 1013 mb.

A surface low pressure system formed over the Atlantic Ocean near the southeastern U.S. under the eastern side of an upper level low on Sunday. The surface low pressure system was clearly evident in visible satellite imagery on Monday morning. Bands of showers and lower clouds were revolving around the center of the surface low. Thunderstorms were occurring in bands on the far western side of the circulation around the surface low. The upper low was centered over northern Florida on Monday morning. It was producing easterly winds that were blowing across the top of the surface low. The easterly winds were causing moderate vertical wind shear and the wind shear was blowing the tops off clouds in many of the bands closer to the center of the surface low.

The surface low will move south of a high pressure system over the western Atlantic Ocean during the next 24 hours. The high will steer the surface low toward the west-northwest. On its anticipated track the center of the surface low will reach the coast near the border between Georgia and South Carolina on Monday evening. The low pressure system could bring gusty winds and locally heavy rain to the areas around Savannah, Georgia and Hilton Head Island, South Carolina.

If thunderstorms develop near the center of the surface low, the National Hurricane Center could designate the system as a tropical depression or a tropical storm. If the low pressure system strengthens, then a Tropical Storm Watch or Tropical Storm Warning could be issued for a portion of the coast. A reconnaissance plane is tentatively scheduled to investigate the low pressure system on Monday afternoon, if necessary.