Hurricane Nolo reached a confirmed peak intensity of 155 mph sustained winds on September 28, placing it firmly in the Category 4 range on the Saffir-Simpson scale according to Central Pacific Hurricane Center analyses. This outcome aligns with official observations of rapid intensification in a favorable environment of warm sea surface temperatures and low shear, followed by weakening as vertical wind shear increased and the system tracked westward past Hawaii before crossing the dateline. The 98.6% market-implied probability for Category 4 reflects trader consensus on these verified measurements, with only slim odds for a Category 5 revision. Post-season reanalysis or adjusted best-track data could theoretically shift the peak slightly higher, though historical precedent shows such changes are uncommon for well-observed Pacific storms.