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| #1279413 (Received by flhurricane at: 10:57 AM 20.Sep.2026) TCDAT1 Tropical Storm Fay Discussion Number 5 NWS National Hurricane Center Miami FL AL062026 300 PM GMT Sun Sep 20 2026 Deep convection continues to build near the center of Fay over the last several hours. The current objective intensity estimates from UW-CIMSS are in the range of 39-52 kt, and the most recent TAFB Dvorak fix was a T3.0/45 kt. In addition, there was an ASCAT pass that showed a peak wind vector of 43 kt. Given the uncertainties due to undersampling, the initial intensity for the storm has been raised to 50 kt. The cyclone continues to remain very compact with its tropical-storm-force winds estimated to extend out to about 40 n mi. Both a relatively moist environment and positive interactions with an approaching mid- to upper-level trough should allow Fay to further intensify for the next 12 to 24 hours. After the trough lifts on Monday, the increase in wind shear and dry air should lead to a gradual weakening of the cyclone. The current NHC forecast calls for Fay to become a post-tropical remnant low by Tuesday and then dissipate by the end of the week. The official intensity forecast is a little higher than the model guidance in the short term to account for the storm`s structure being more improved and the expected baroclinic support from the trough. This small system could approach hurricane strength later today or tonight. Fay is slowly moving off to the northeast, with the initial motion estimated around 010/5 kt. This general motion should continue for the rest of the day. However, a low- to mid-level ridge is expected to build to the north of the storm by Monday, which will cause Fay to turn southwestward and gradually accelerate in that direction over the course of the forecast period. The current NHC track forecast is similiar to the previous track forecast with a few minor adjustments and remains in good agreement with HCCA and GDMI. FORECAST POSITIONS AND MAX WINDS INIT 20/1500Z 34.1N 33.0W 50 KT 60 MPH 12H 21/0000Z 34.3N 32.6W 60 KT 70 MPH 24H 21/1200Z 33.9N 32.4W 50 KT 60 MPH 36H 22/0000Z 32.9N 32.9W 45 KT 50 MPH 48H 22/1200Z 31.7N 34.2W 35 KT 40 MPH 60H 23/0000Z 30.6N 35.9W 30 KT 35 MPH...POST-TROP/REMNT LOW 72H 23/1200Z 29.8N 37.7W 25 KT 30 MPH...POST-TROP/REMNT LOW 96H 24/1200Z 28.8N 41.1W 25 KT 30 MPH...POST-TROP/REMNT LOW 120H 25/1200Z...DISSIPATED $$ Forecaster Katz/Pasch |
