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| #900883 (Received by flhurricane at: 11:35 PM 30.Aug.2017) TCPAT4 BULLETIN Tropical Depression Harvey Advisory Number 43 NWS National Hurricane Center Miami FL AL092017 1000 PM CDT Wed Aug 30 2017 ...FLOODING RAINS CONTINUE OVER EXTREME EASTERN TEXAS AND WESTERN LOUISIANA... ...HEAVY RAINS EXPECTED TO SPREAD NORTHEASTWARD OVER THE MISSISSIPPI AND TENNESSEE VALLEYS DURING THE NEXT DAY OR TWO... SUMMARY OF 1000 PM CDT...0300 UTC...INFORMATION ----------------------------------------------- LOCATION...31.7N 92.3W ABOUT 30 MI...50 KM NNE OF ALEXANDRIA LOUISIANA ABOUT 100 MI...160 KM SE OF SHREVEPORT LOUISIANA MAXIMUM SUSTAINED WINDS...35 MPH...55 KM/H PRESENT MOVEMENT...NNE OR 30 DEGREES AT 9 MPH...15 KM/H MINIMUM CENTRAL PRESSURE...998 MB...29.47 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY: None SUMMARY OF WATCHES AND WARNINGS IN EFFECT: There are no coastal watches or warnings in effect. Catastrophic and life-threatening flooding continues in southeastern Texas and portions of southwestern Louisiana. Please see warnings and other products issued by your local National Weather Service office for additional information on this life-threatening situation. DISCUSSION AND 48-HOUR OUTLOOK ------------------------------ At 1000 PM CDT (0300 UTC), the center of Tropical Depression Harvey was located near latitude 31.7 North, longitude 92.3 West. The depression is moving toward the north-northeast near 9 mph (15 km/h) and this motion is expected to continue tonight. A turn toward the northeast is expected Thursday or Thursday night. On the forecast track, the center of Harvey should move through central Louisiana tonight, then move through northeastern Louisiana and northwestern Mississippi Thursday and Thursday night, and over the Tennessee Valley region on Friday. Maximum sustained winds are near 35 mph (55 km/h) with higher gusts. Gradual weakening is expected over the next 48 hours. The estimated minimum central pressure is 998 mb (29.47 inches). HAZARDS AFFECTING LAND ---------------------- RAINFALL: Harvey is expected to produce additional rainfall accumulations of 4 to 8 inches from southwestern Louisiana and the adjacent border of eastern Texas northeastward into western Tennessee and Kentucky through Friday with isolated amounts up to 12 inches. The threat of heavy rains has ended in the Houston/ Galveston area. However catastrophic and life-threatening flooding will continue in and around Houston, Beaumont/Port Arthur, and eastward into southwest Louisiana for the rest of the week. The expected heavy rains spreading northeastward from Louisiana into western Kentucky may also lead to flash flooding and increased river and small stream flooding. DO NOT ATTEMPT TO TRAVEL IN THE AFFECTED AREA IF YOU ARE IN A SAFE PLACE. DO NOT DRIVE INTO FLOODED ROADWAYS. Please see warnings and products issued by your local National Weather Service office for additional information on this life-threatening situation. Elsewhere, the outer bands of Harvey are expected to produce additional rainfall amounts of 3 to 6 inches over portions of the central and eastern Gulf States and 2 to 4 inches farther north into parts of the Tennessee Valley, Ohio Valley and southern Mid Atlantic through Saturday. These rains may lead to flooding concerns across these areas. A list of preliminary rainfall observations compiled by the NOAA Weather Prediction Center can be found at: www.wpc.ncep.noaa.gov/discussions/nfdscc1.html STORM SURGE: Water levels along the northwestern and northern Gulf coast should subside very slowly over the next day or two. TORNADOES: Isolated tornadoes are possible tonight across parts of Mississippi, southern Alabama, and southwest Georgia. Additional tornadoes are possible on Thursday afternoon and evening across northern portions of Mississippi, Alabama, Georgia, and into parts of Tennessee. NEXT ADVISORY ------------- This is the last public advisory issued by the National Hurricane Center on Harvey. Future information on this system can be found in Public Advisories issued by the Weather Prediction Center beginning at 4 AM CDT, under AWIPS header TCPAT4, WMO header WTNT34 KWNH, and on the web at http://www.wpc.ncep.noaa.gov. These advisories will also continue to be found on the National Hurricane Center website at hurricanes.gov. $$ Forecaster Brown |
