- Premise (Yale Climate Connections): The National Hurricane Center upgraded Potential Tropical Cyclone One-C to Tropical Storm Lala, establishing that PTC One-C and Lala are the same system. Source explicitly states: “PTC 1-C has been upgraded to Tropical Storm Lala.”
- Premise (NHC/CPHC Discussion #24): At 11:00 PM HST on Monday, Aug 17, 2026, the official discussion states: “the initial intensity has been raised to 70 kt, making Lala a hurricane again,” with the advisory header date/time and an intensity table showing INIT 18/0900Z 70 KT (80 MPH).
- Inference: 70 kt ≥ 64 kt (the hurricane threshold given in the question), and the NHC/CPHC explicitly classifies Lala as a hurricane at 11:00 PM HST on Aug 17, 2026.
- Conclusion: The system originally designated Potential Tropical Cyclone One-C did reach hurricane intensity on Aug 17, 2026; therefore, the answer is YES.