Tropical Cyclone Discussion
947 WTPA42 PHFO 260835 TCDCP2 Tropical Storm Lala Discussion Number 56 NWS Central Pacific Hurricane Center Honolulu HI CP012026 Issued by NWS National Hurricane Center Miami FL 1100 PM HST Tue Aug 25 2026 The satellite presentation of Lala has slowly deteriorated tonight. Water vapor imagery shows some drier air has worked its way into the circulation, which has led to diminished convection and warming infrared cloud tops near and around the center. The Dvorak current intensity estimates from JTWC and HFO have decreased to T2.5/35 kt, and so the initial intensity is lowered to 40 kt. Fixes from recent AMSR3 and GMI passive microwave images suggest Lala has resumed a slow northwestward motion (310/4 kt), steered by a mid-level ridge just to the northeast of the storm. This ridge should keep Lala on a slow northwestward heading while the storm approaches the International Date Line (IDL). The updated NHC track forecast has been nudged to the right of the previous one, in response to an eastward shift in the latest track guidance envelope. Lala will remain in a fairly dry mid-level environment while encountering increasing shear over cool waters during the next couple of days. Thus, continued weakening is forecast, and Lala is predicted to lose organized convection and become a post-tropical low by 48 h as it reaches the IDL. Post-tropical Lala is forecast to accelerate deeper into the mid-latitudes over the weekend, and it should open up into a trough over the northern Pacific by 120 h. FORECAST POSITIONS AND MAX WINDS INIT 26/0900Z 35.4N 177.7W 40 KT 45 MPH 12H 26/1800Z 35.9N 178.2W 40 KT 45 MPH 24H 27/0600Z 36.6N 178.7W 40 KT 45 MPH 36H 27/1800Z 37.4N 179.3W 35 KT 40 MPH 48H 28/0600Z 38.0N 180.0E 35 KT 40 MPH...POST-TROPICAL 60H 28/1800Z 38.6N 179.0E 30 KT 35 MPH...POST-TROP/REMNT LOW 72H 29/0600Z 39.5N 177.6E 25 KT 30 MPH...POST-TROP/REMNT LOW 96H 30/0600Z 44.5N 174.5E 25 KT 30 MPH...POST-TROP/REMNT LOW 120H 31/0600Z...DISSIPATED