Greg — 2023

Tropical Storm Greg formed from a tropical wave and became a tropical depression on 14 August 2023 in the far western part of the eastern North Pacific (near 11.3°N, 138.2°W). It moved west-northwest into the central Pacific basin and existed through 18 August, dissipating by 19 August. During its life the system strengthened over several days, reached peak strength on 15–16 August, then gradually weakened as it moved farther west. Greg did not make any landfalls. It stayed well over open ocean during its entire lifespan and no coastal watches or warnings were issued. The storm’s maximum sustained winds were 55 knots (about 63 mph) with an estimated minimum central pressure of 994 millibars at peak intensity on 15–16 August 2023. At peak strength Greg was a moderate tropical storm, below hurricane strength. Because Greg remained over water, there were no reported storm surge impacts on land. The official report lists no measured storm surge heights or coastal inundation. Rainfall and wind observations associated with Greg were primarily from satellites and remote sensors; the report does not cite specific rainfall totals at named cities or counties. There were no reports of damage or casualties — no direct or indirect fatalities were associated with Greg. The storm’s most notable aspects were its formation in the far western eastern Pacific and its brief period at moderate tropical-storm strength while moving into the central Pacific. Forecasts and official track and intensity forecasts for Greg performed at or better than recent averages for the limited number of forecasts issued.