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| #1014276 (Received by flhurricane at: 7:57 PM 27.Aug.2020) TCPAT3 BULLETIN Tropical Storm Laura Intermediate Advisory Number 32A NWS National Hurricane Center Miami FL AL132020 700 PM CDT Thu Aug 27 2020 ...LAURA CONTINUES TO PRODUCE FLOODING RAINFALL OVER PORTIONS OF ARKANSAS... SUMMARY OF 700 PM CDT...0000 UTC...INFORMATION ---------------------------------------------- LOCATION...34.2N 92.4W ABOUT 35 MI...55 KM S OF LITTLE ROCK ARKANSAS MAXIMUM SUSTAINED WINDS...40 MPH...65 KM/H PRESENT MOVEMENT...NNE OR 15 DEGREES AT 15 MPH...24 KM/H MINIMUM CENTRAL PRESSURE...992 MB...29.29 INCHES WATCHES AND WARNINGS -------------------- There are no coastal watches or warnings in effect. Tropical storm warnings remain in effect inland over portions of southern and central Arkansas. DISCUSSION AND OUTLOOK ---------------------- At 700 PM CDT (0000 UTC), the center of Tropical Storm Laura was located near latitude 34.2 North, longitude 92.4 West. Laura is moving toward the north-northeast near 15 mph (24 km/h), and this motion should continue through tonight. A northeastward to east-northeastward motion is expected to begin on Friday and continue into Saturday. On the forecast track, the center of Laura is forecast to move over Arkansas tonight, the mid-Mississippi Valley on Friday, the mid-Atlantic states on Saturday, and over the western Atlantic on Sunday. Maximum sustained winds have decreased to near 40 mph (65 km/h) with higher gusts. Continued weakening is forecast, and Laura is expected to weaken to a tropical depression later this evening. Tropical-storm-force winds extend outward up to 90 miles (150 km) from the center. The estimated minimum central pressure based on surface observations is 992 mb (29.29 inches). HAZARDS AFFECTING LAND ---------------------- Key messages for Laura can be found in the Tropical Cyclone Discussion under AWIPS header MIATCDAT3 and WMO header WTNT43 KNHC. RAINFALL: Through Friday Laura is expected to produce the following additional rainfall totals: Over central and eastern Arkansas: 3 to 7 inches. Over southern Louisiana and southern Mississippi: 1 to 3 inches, with isolated additional totals of 5 inches. Isolated storm totals of 15 to 18 inches across southwest Louisiana. Over northern Mississippi, western Tennessee, and southeast Missouri: 1 to 3 inches, with isolated totals of 5 inches. This rainfall will continue to cause widespread flash and urban flooding, small streams and creeks to overflow their banks, and minor to moderate freshwater river flooding. Through Saturday, Laura is expected to produce 1 to 3 inches with isolated maximum amounts of 5 inches across portions of the Tennessee and Lower Ohio Valleys, the central and southern Appalachians, and the Mid-Atlantic States. This rainfall may lead to flash and urban flooding and rapid rises on small streams. WIND: Tropical storm force winds, especially in gusts, are expected over portions of southeastern and eastern Arkansas for the next few hours. TORNADOES: A few tornadoes remain possible this evening, mainly across central and eastern Arkansas into Mississippi. The risk for a few tornadoes should redevelop Friday afternoon into the evening across parts of the Mid-South and Tennessee Valley regions. SURF: Swells produced by Laura continue to affect the U.S. Gulf coast from the Florida Panhandle to Texas. These swells are likely to cause life-threatening surf and rip current conditions. Please consult products from your local weather office. NEXT ADVISORY ------------- Next complete advisory at 1000 PM CDT. $$ Forecaster Pasch |
