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Tropical Depression Marco Forecast Discussion Number 20
2020-08-25 04:31:54| National Hurricane Center (Atlantic)
Issued at 1000 PM CDT Mon Aug 24 2020 000 WTNT44 KNHC 250231 TCDAT4 Tropical Depression Marco Discussion Number 20 NWS National Hurricane Center Miami FL AL142020 1000 PM CDT Mon Aug 24 2020 Visible imagery and surface observations indicated that Marco made landfall around 6 pm CDT near the mouth of the Mississippi River. Shortly before landfall, reports from an Air Force Reserve Hurricane Hunter plane indicated that Marco was still producing a small area of tropical-storm-force winds over water to the northeast of its center. Since then, the system has moved almost due west along the southeast coast of Louisiana while its deep convection has become farther displaced from the low-level center. Between the lack of central convection and Marco's proximity to land, it is likely that the winds have decreased since earlier this evening and the intensity has been lowered to 30 kt. If deep convection does not redevelop overnight, Marco will become a remnant low as soon as Tuesday morning. Regardless of its status, Marco should move generally westward near the coast of Louisiana while it weakens for the next day or so and could continue to produce heavy rain for portions of the north-central Gulf Coast tonight. The system is then forecast to dissipate by early Wednesday, if not sooner. FORECAST POSITIONS AND MAX WINDS INIT 25/0300Z 29.0N 89.8W 30 KT 35 MPH 12H 25/1200Z 29.0N 91.3W 25 KT 30 MPH...POST-TROP/REMNT LOW 24H 26/0000Z 29.0N 93.3W 25 KT 30 MPH...POST-TROP/REMNT LOW 36H 26/1200Z...DISSIPATED $$ Forecaster Zelinsky
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