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| #1020937 (Received by flhurricane at: 4:47 PM 11.Oct.2020) TCPAT1 BULLETIN Post-Tropical Cyclone Delta Advisory Number 29 NWS Weather Prediction Center College Park MD AL262020 400 PM CDT Sun Oct 11 2020 ...DELTA CONTINUES TO BE A HEAVY RAINFALL THREAT INTO THIS EVENING... SUMMARY OF 400 PM CDT...2100 UTC...INFORMATION ---------------------------------------------- LOCATION...35.4N 85.5W ABOUT 90 MI...145 KM WSW OF KNOXVILLE TENNESSEE ABOUT 295 MI...475 KM WSW OF BECKLEY WEST VIRGINIA MAXIMUM SUSTAINED WINDS...25 MPH...35 KM/H PRESENT MOVEMENT...ENE OR 60 DEGREES AT 14 MPH...22 KM/H MINIMUM CENTRAL PRESSURE...1007 MB...29.74 INCHES WATCHES AND WARNINGS -------------------- Flood and Flash Flood Watches remain in effect in and near the southern Appalachians. DISCUSSION AND OUTLOOK ---------------------- At 400 PM CDT (2100 UTC), the center of Post-Tropical Cyclone Delta was located near latitude 35.4 North, longitude 85.5 West. The post-tropical cyclone is moving toward the east-northeast near 14 mph (22 km/h) and this motion is expected to continue tonight and Monday morning. Maximum sustained winds are near 25 mph (35 km/h) with higher gusts. Some weakening is possible tonight as a new surface low develops in the Carolinas, and Delta`s surface low is expected to be absorbed by this new low pressure area on Monday The estimated minimum central pressure is 1007 mb (29.74 inches). HAZARDS AFFECTING LAND ---------------------- RAINFALL: In the Appalachian region of 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 into this evening. 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 1000 PM CDT. $$ Forecaster Roth |
