Forecasters predict humid conditions and the possibility of rain today as the tropical air mass associated with what was Hurricane Celia continues to move west over the state.
Cooler tradewinds are expected to follow this evening and Wednesday, bringing brief windward showers through Friday.
Oahu and Hawaii island spent much of Monday under flood advisory due to heavy rain.
The Oahu advisory covered Aiea, Kunia, Schofield Barracks, Pearl City, Waikele, Waipahu, Mililani and Halawa.
At 3:41 p.m. radar showed an area of moderate rain of up to an inch an hour between Mililani and Wahiawa moving southeast at 5 mph.
On the Big Island rain fell at a rate of 1 to 3 inches per hour between Ookala and Laupahoehoe.
Other affected areas included Honomu, Ninole, Paauilo and Hakalau.
Both advisories expired Monday evening.
Humidity associated with Hurricane Darby is expected to begin moving over the islands Thursday or Friday, and a much weaker Darby could bring heavy rain and strong wind this weekend if it continues on its current track.
If Darby, likely a tropical depression by the weekend, passes north of the islands, it will likely have the same effect on Hawaii’s weather as Celia, and the weather this weekend could be similar to today’s humidity and rain.
If it passes south or over the islands, there could be strong wind and heavier rain because the heaviest rains associated with the storm are generally on the northeast or northwest section of the system and the strongest winds are near the center of the storm.
The actual path of a storm can vary by more than 170 miles on forecasts five days out, so Darby’s effect on Hawaii’s weather is still uncertain.
Meanwhile, a high-surf advisory is in effect for north shores of Oahu and Kauai because of a choppy swell generated by Celia’s passage north of the islands. The advisory is in effect until at least 6 a.m. today. Wave heights were expected at 6 to 10 feet overnight.
