Tropical Cyclone Discussion
Issued by NWS
Issued by NWS
031 WTPZ41 KNHC 022033 TCDEP1 Hurricane Flossie Discussion Number 15 NWS National Hurricane Center Miami FL EP062025 200 PM MST Wed Jul 02 2025 Flossie is feeling the effects of decreasing sea surface temperatures, with the associated convection waning and becoming asymmetric. The latest subjective satellite intensity estimates indicate weakening, and recent objective satellite estimates are in the 80-90 kt range. Based on this, the initial intensity is decreased to a possibly generous 85 kt. The initial wind radii have been revised based on a 1638Z ASCAT overpass. The initial motion is 305/8 kt. Flossie is moving toward a break in the subtropical ridge caused by a mid- to upper-level trough over California and the adjacent Pacific. A general northwestward motion should continue for the next couple of days. After that, Flossie should lose vertical depth as it weakens, with the remnant low being steered more toward the west-northwest by the mean low-level flow. The new forecast track is almost identical to the previous track and lies near the various consensus models. Steady to rapid weakening is forecast to continue as Flossie moves over cooler water and into a drier air mass. The cyclone is predicted to become post-tropical in about 36 h as it stops producing convection, and it is expected to decay to a remnant low thereafter. The system is forecast to dissipate completely by 96 h, and this could happen earlier than currently forecast. FORECAST POSITIONS AND MAX WINDS INIT 02/2100Z 19.5N 109.8W 85 KT 100 MPH 12H 03/0600Z 20.1N 110.8W 70 KT 80 MPH 24H 03/1800Z 21.1N 112.3W 55 KT 65 MPH 36H 04/0600Z 22.1N 113.8W 40 KT 45 MPH...POST-TROPICAL 48H 04/1800Z 23.1N 115.4W 30 KT 35 MPH...POST-TROP/REMNT LOW 60H 05/0600Z 24.0N 117.1W 25 KT 30 MPH...POST-TROP/REMNT LOW 72H 05/1800Z 24.7N 118.8W 20 KT 25 MPH...POST-TROP/REMNT LOW 96H 06/1800Z...DISSIPATED $$ Forecaster Beven