Post-Tropical Cyclone Fausto Forecast Discussion
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000 WTPA41 PHFO 291434 TCDCP1 Post-Tropical Cyclone Fausto Discussion Number 43 NWS Central Pacific Hurricane Center Honolulu HI EP062026 Issued by NWS National Hurricane Center Miami FL 500 AM HST Wed Jul 29 2026 It has been 18-21 h since Fausto produced convection that met the criteria of the Dvorak Technique for tropical cyclone intensity estimates, with just a few patches of convection occurring well to the east and northeast of the center. Also, scatterometer data received after the last advisory suggested the circulation is losing definition. The cyclone is in an environment of 40-45 kt of westerly vertical shear and a dry mid-level airmass, and thus significant convective re-development appears unlikely. Based on these developments, Fausto is being downgraded to a remnant low pressure area. Fausto continues west-northwestward with an initial motion of 290/11 kt. This general motion should continue until the system dissipates, as the shallow circulation is steered mainly by the tradewind flow south of the subtropical ridge. The forecast track keeps the remnants well to the north of the Hawaiian Islands. The dynamical models forecast the remnant low to persist for another 36 h or so, and after that it should degenerate to a open trough. This is reflected in the intensity forecast. This is the last advisory on Fausto. 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 ocean.weather.gov/shtml/NFDHSFEPI.php Key Messages: 1. Surf generated by Fausto is building westward across the Hawaiian Islands along exposed east-facing shores and will remain dangerous today as Fausto passes north of the islands. Large surf and strong currents will lead to dangerous conditions along exposed shores. Please consult products from your local weather office. FORECAST POSITIONS AND MAX WINDS INIT 29/1500Z 23.8N 155.6W 30 KT 35 MPH...POST-TROP/REMNT LOW 12H 30/0000Z 24.1N 157.4W 25 KT 30 MPH...POST-TROP/REMNT LOW 24H 30/1200Z 24.6N 160.0W 25 KT 30 MPH...POST-TROP/REMNT LOW 36H 31/0000Z 25.3N 162.5W 20 KT 25 MPH...POST-TROP/REMNT LOW 48H 31/1200Z...DISSIPATED $$ Forecaster Beven