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Post-Tropical Cyclone Lidia Forecast Discussion Number 19
2017-09-03 10:43:18| National Hurricane Center (East Pacific)
Issued at 200 AM PDT Sun Sep 03 2017 000 WTPZ44 KNHC 030843 TCDEP4 Post-Tropical Cyclone Lidia Discussion Number 19 NWS National Hurricane Center Miami FL EP142017 200 AM PDT Sun Sep 03 2017 Lidia has not produced any deep convection for the past 12-15 hours, which means it is no longer a tropical cyclone and has degenerated into a remnant low. Its initial intensity is estimated to be 30 kt based on a Dvorak CI number of 2.0 from TAFB, but Lidia's winds should gradually decrease as it moves over the cold waters west of Baja California. Model guidance indicates that Lidia's vorticity will merge with or become absorbed by a deep-layer low to its west in the coming days, and the surface low is expected to dissipate by 48 hours. Lidia's initial motion is toward the northwest, or 315/7 kt. High pressure over the southwestern United States should steer the remnant low toward the west-northwest beginning later today, and this motion should continue until the circulation dissipates off the coast of southern California. This is the last advisory issued by the National Hurricane Center on Lidia. For additional information on the remnant low please see High Seas Forecasts issued by the National Weather Service, under AWIPS header NFDHSFEPI, WMO header FZPN02 KWBC, and on the web at http://www.opc.ncep.noaa.gov/shtml/NFDHSFEPI.shtml. FORECAST POSITIONS AND MAX WINDS INIT 03/0900Z 29.6N 116.3W 30 KT 35 MPH...POST-TROP/REMNT LOW 12H 03/1800Z 30.3N 117.6W 25 KT 30 MPH...POST-TROP/REMNT LOW 24H 04/0600Z 31.2N 119.7W 20 KT 25 MPH...POST-TROP/REMNT LOW 36H 04/1800Z 32.2N 121.8W 15 KT 15 MPH...POST-TROP/REMNT LOW 48H 05/0600Z...DISSIPATED $$ Forecaster Berg
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