ZCZC NFDTCPAT2 ALL TTAA00 KWNH DDHHMM BULLETIN Post-Tropical Cyclone Beta Advisory Number 26 NWS Weather Prediction Center College Park MD AL222020 1000 PM CDT Wed Sep 23 2020 ...BETA CONTINUES ON A NORTHEASTWARD TRACK BRINGING HEAVY RAINFALL FROM THE LOWER MISSISSIPPI VALLEY TO THE TENNESSEE VALLEY... SUMMARY OF 1000 PM CDT...0300 UTC...INFORMATION ----------------------------------------------- LOCATION...31.1N 91.8W ABOUT 45 MI...70 KM ESE OF ALEXANDRIA LOUISIANA MAXIMUM SUSTAINED WINDS...30 MPH...45 KM/H PRESENT MOVEMENT...NE OR 55 DEGREES AT 12 MPH...19 KM/H MINIMUM CENTRAL PRESSURE...1005 MB...29.68 INCHES WATCHES AND WARNINGS -------------------- Flash Flood Watches are currently in effect from central Louisiana into central Mississippi, and for parts of northern Alabama, and southern Middle Tennessee. DISCUSSION AND OUTLOOK ---------------------- At 1000 PM CDT (0300 UTC), the center of Post-Tropical Cyclone Beta was located near latitude 31.1 North, longitude 91.8 West. The post-tropical cyclone is moving toward the northeast near 12 mph (19 km/h) and this motion is expected to continue through the next 24 to 36 hours. Maximum sustained winds are near 30 mph (45 km/h) with higher gusts. Slow weakening is forecast as the surface circulation weakens into the frontal zone by 48 hours. The estimated minimum central pressure is 1005 mb (29.68 inches). HAZARDS AFFECTING LAND ---------------------- RAINFALL: Rainfall totals of 3 to 5 inches are expected through early Thursday across portions of Louisiana and central Mississippi, with isolated totals of 7 inches possible. Flash and urban flooding is likely, as well as isolated minor river flooding on smaller rivers. Rainfall totals of 2 to 5 inches are expected across northeastern Mississippi, portions of the Tennessee Valley, and the southern Appalachians through the end of the week. Flash and urban flooding is possible, as well as isolated minor river flooding on smaller rivers. TORNADOES: An isolated tornado or two are possible overnight across Southern Mississippi. NEXT ADVISORY ------------- Next complete advisory at 400 AM CDT. $$ Forecaster Gallina FORECAST POSITIONS AND MAX WINDS INIT 24/0300Z 31.1N 91.8W 25 KT 30 MPH...POST-TROPICAL 12H 24/1200Z 32.1N 90.1W 25 KT 30 MPH...POST-TROP/EXTRATROP 24H 25/0000Z 33.4N 88.0W 20 KT 25 MPH...POST-TROP/EXTRATROP 36H 25/1200Z 35.1N 85.8W 20 KT 25 MPH...POST-TROP/EXTRATROP 48H 26/0000Z...POST-TROP/EXTRATROP NNNN
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