Adrian — 2023

Adrian formed about 1200 UTC on 27 June 2023 roughly 250 nautical miles (about 288 statute miles) south of Manzanillo, Mexico. It strengthened from a depression into a tropical storm the same day and became a hurricane on 28 June. Adrian moved generally northwestward over the eastern North Pacific, reached its peak on 30 June, then weakened and became a remnant low by 2–3 July before dissipating in early July. The storm remained over open water for its entire life and did not produce hurricane-force winds at land sites. There were no landfalls associated with Adrian. The storm passed just north of Clarion Island on 1 July as it was weakening; an automated station there measured sustained winds of 33 kt (38 mph) with a gust to 48 kt (55 mph) and a minimum pressure of 994 mb, but those values were taken as a somewhat low-biased pressure compared to routine analyses. No coastal watches or warnings were issued. Adrian’s maximum intensity was 90 kt (about 104 mph) with a minimum central pressure of 970 mb, reached between 1200 and 1800 UTC on 30 June. That peak corresponds to a Category 2 hurricane on the Saffir–Simpson scale. After peak intensity the hurricane steadily weakened over cooler waters and increasing wind shear. Storm surge and heavy rainfall impacts were minimal because Adrian stayed offshore. The only specific observing station noted in the report was on Clarion Island, which recorded the wind and pressure values noted above; the report lists no significant storm surge measurements or substantial rainfall totals for coastal cities or counties. There were no ship reports of tropical-storm-force winds and no reports of coastal flooding tied to Adrian. There were no reported deaths or damage directly associated with Adrian. Forecasters anticipated the general area of genesis well at longer lead times (e.g., 7 days), though short-range genesis probabilities were lower; overall NHC track errors were a little above recent averages while intensity forecasts performed at or better than typical model guidance for this system.