Tropical cyclones in the Pacific. Image taken at 2 p.m. HST Sunday, July 17, 2016. Photo courtesy of NOAA-NASA GOES Project

Hot and muggy conditions will continue into the beginning part of this week. The remnant low of former Tropical Cyclone Celia will continue to move west, passing north of the islands. As the low passes, winds will become increasingly lighter Sunday through Tuesday and deep tropical moisture will be drawn over the state. This deep tropical moisture will help fuel locally heavy showers, Sunday through Wednesday. Trades will start to make their comeback Wednesday through the end of the work week.

Track of Tropical Cyclone Darby at 11 a.m. HST Sunday, July 17, 2016

Tropical Cyclone Darby has started to weaken as it moves west and it is too early to say exactly what impacts it might have on Hawaii. The current forecast has the system crossing into the Central Pacific Hurricane Center’s area of responsibility late Tuesday night.

At 11 a.m. HST the National Hurricane Center reported that Hurricane Darby has weakened to Category One status and is moving toward the west near 9 mph (15 km/h). Maximum sustained winds have decreased to near 90 mph (150 km/h). Continued weakening during the next 48 hours is forecast, and Darby will likely become a tropical storm on Monday. It’s currently centered about 1,230 miles (1,980 km) west-southwest of the southern tip of Baja California.

Meanwhile, Tropical Storm Estelle has strengthened and is expected to become a hurricane later today. Maximum sustained winds have increased to near 70 mph (110 km/h. Additional strengthening is forecast over the next few days. It’s currently centered about 475 miles (760 km) south southwest of the southern tip of Baja California.

Full earth image taken at 2 p.m. HST Sunday, July 17, 2016. Photo courtesy of NOAA-NASA GOES Project