Post-tropical Delta continues to be heavy rainfall threat as it reaches southern Appalachians

Posted at 8:03 AM, Oct 05, 2020
and last updated 2020-10-11 06:07:29-04

At 4 a.m. Sunday, the center of Post-Tropical Cyclone Delta was located near latitude 34.6 North, longitude 87.7 West.

The post-tropical cyclone is moving toward the east-northeast near 15 mph (24 km/h) and this motion is expected to continue today. Maximum sustained winds are near 30 mph (45 km/h) with higher gusts.

Weakening is forecast during the next 24 hours, as Delta's surface low is expected to dissipate across the central Appalachians late Sunday night.

The estimated minimum central pressure is 1004 mb (29.65 inches).

In the Appalachian region of northeast Georgia, the western Carolinas, and western Virginia, the remnants of Delta are expected to produce storm total rainfall of 3 to 6 inches, which could lead to flash, urban, and small stream flooding, especially in areas of steep terrain. Isolated minor river flooding is possible.

Across much of the rest of the Mid-Atlantic, 1 to 3 inches of rain, with locally higher amounts, are expected. Localized flash and urban flooding are possible, but overall hydrologic impacts are expected to be minimal.

Moderate to major river flooring will continue across the Calcasieu and Vermillion river basins in Louisiana through much of next week.

Update as of 4 a.m. Sunday, October 11, 2020:

Location: 34.6 N 87.7 W

Moving: ENE at 15 mph

Max sustained winds: 30 mph

Max pressure: 1004 mb

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