Greg — 2023

Tropical Storm Greg developed from a tropical wave as a tropical depression on August 14, 2023, near 11.3°N, 138.2°W, about 1325 miles east-southeast of Hawaii. It became a tropical storm six hours later and moved generally westward from the far western eastern Pacific into the central Pacific. Greg weakened to a depression on August 18 and dissipated early August 19. Greg did not make landfall. No coastal watches or warnings were issued. Greg’s peak intensity was 55 knots—about 63 mph, or roughly 65 mph—from August 15 to August 16, with a minimum central pressure of 994 millibars. Its peak occurred near 11.1°N, 146.5°W, about 880 miles southeast of Hawaii. It remained a tropical storm; it did not reach hurricane strength. The report lists no storm-surge measurements or rainfall totals. It also reports no damage and no direct or indirect deaths associated with Greg. NHC’s two eastern Pacific track forecasts had errors at or below the five-year average at all forecast periods, and intensity forecast errors were below average. In the central Pacific, official track forecasts were below the five-year average at most periods, with exceptions at 24 and 60 hours; official intensity errors were below average except at 60 hours.