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| #969429 (Received by flhurricane at: 10:50 AM 21.May.2019) TCDAT1 Subtropical Depression Andrea Discussion Number 4 NWS National Hurricane Center Miami FL AL012019 1100 AM AST Tue May 21 2019 As expected, Andrea is likely to be a short-lived event. The cyclone`s cloud pattern has continued to degrade, and Andrea is now essentially devoid of deep convection. In fact, at first glance, the upper-level low to the southwest of the center appears to be the most dominant feature. Based on the lack of convection and a buoy observation not far to the north of Andrea, the system is being downgraded to a subtropical depression. Since the cyclone is expected to remain under the influence of the upper low and in and environment of dry mid-level air for the next day or so, Andrea is likely to degenerate into a remnant low pressure area in a day or less. The system has moved a little more to the north than previously estimated and the initial motion is 360/7. Upper-level westerlies should cause the cyclone to turn eastward in 12-24 hours until dissipation. The official track forecast is similar to but a little slower than the dynamical model consensus, TVCN. FORECAST POSITIONS AND MAX WINDS INIT 21/1500Z 30.8N 69.2W 30 KT 35 MPH 12H 22/0000Z 31.5N 67.8W 30 KT 35 MPH...POST-TROP/REMNT LOW 24H 22/1200Z 31.7N 66.0W 25 KT 30 MPH...POST-TROP/REMNT LOW 36H 23/0000Z...DISSIPATED $$ Forecaster Pasch |
