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| #1020905 (Received by flhurricane at: 10:38 AM 11.Oct.2020) TCPAT1 BULLETIN Post-Tropical Cyclone Delta Advisory Number 28 NWS Weather Prediction Center College Park MD AL262020 1000 AM CDT Sun Oct 11 2020 ...DELTA CONTINUES TO BE A HEAVY RAINFALL THREAT... SUMMARY OF 1000 AM CDT...1500 UTC...INFORMATION ----------------------------------------------- LOCATION...35.2N 86.5W ABOUT 65 MI...100 KM S OF NASHVILLE TENNESSEE ABOUT 145 MI...235 KM WSW OF KNOXVILLE TENNESSEE MAXIMUM SUSTAINED WINDS...25 MPH...35 KM/H PRESENT MOVEMENT...NE OR 55 DEGREES AT 16 MPH...26 KM/H MINIMUM CENTRAL PRESSURE...1005 MB...29.68 INCHES WATCHES AND WARNINGS -------------------- Flood and flash flood watches remain in effect into this afternoon in and near the southern Appalachians. DISCUSSION AND OUTLOOK ---------------------- At 1000 AM CDT (1500 UTC), the center of Post-Tropical Cyclone Delta was located near latitude 35.2 North, longitude 86.5 West. The post-tropical cyclone is moving toward the northeast near 16 mph (26 km/h) and this motion is expected to continue into Monday morning. Maximum sustained winds are near 25 mph (35 km/h) with higher gusts. Additional weakening is expected into Sunday morning, when dissipation of the center is expected as a new low develops east of the Appalachians. The estimated minimum central pressure is 1005 mb (29.68 inches). HAZARDS AFFECTING LAND ---------------------- RAINFALL: 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. These rainfall amounts have already led to flash, urban, and small stream flooding along with isolated minor to moderate river flooding for parts of the region, and the flood threat, especially in areas of steep terrain, will continue through today. 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 Mermentau river basins in Louisiana through much of next week. TORNADOES: A few brief/weak tornadoes are possible across the Carolinas today. NEXT ADVISORY ------------- Next complete advisory at 400 PM CDT. $$ Forecaster Roth |
