303 WTPA43 PHFO 122033 TCDCP3 Tropical Storm Henriette Discussion Number 35 NWS Central Pacific Hurricane Center Honolulu HI EP082025 Issued by NWS National Hurricane Center Miami FL 1100 AM HST Tue Aug 12 2025 Henriette continues to weaken. Convection has become fragmented over the past few hours with some shallow convection to the east of the center. A microwave image from 1740 UTC showed the low-level eyewall open to the west. Subjective and objective Dvorak estimates have generally decreased this cycle and a blend of these data supports an initial intensity of 55 kt for this advisory. Atmospheric and oceanic conditions are becoming increasingly hostile. Sea surface temperatures are expected to drop below 26 degrees C within a few hours. The ongoing moderate wind shear is forecast to increase and likely force additional nearby dry air into the storm's circulation. Global models suggest that Henriette will lose all deep convection within 24 hours. The latest official intensity forecast now shows the storm becoming a post-tropical cyclone on Wednesday and a remnant low by Wednesday evening, and this is in line with the latest consensus aids. Henriette is moving northwestward or 315/15 kt. This general motion should continue for the next day or so as the storm is steered between a mid-level ridge to the northeast and an upper-level low to the west. Thereafter, the system should be steered more by the low-level flow as it weakens and is expected to decelerate and turn north-northwestward and northward. Only minor adjustments have been made to the latest NHC track forecast. FORECAST POSITIONS AND MAX WINDS INIT 12/2100Z 34.1N 162.9W 55 KT 65 MPH 12H 13/0600Z 35.7N 164.9W 45 KT 50 MPH 24H 13/1800Z 37.7N 167.2W 35 KT 40 MPH...POST-TROPICAL 36H 14/0600Z 39.9N 169.0W 30 KT 35 MPH...POST-TROP/REMNT LOW 48H 14/1800Z 42.0N 169.5W 25 KT 30 MPH...POST-TROP/REMNT LOW 60H 15/0600Z 44.0N 169.8W 20 KT 25 MPH...POST-TROP/REMNT LOW 72H 15/1800Z...DISSIPATED $$ Forecaster Bucci
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