A cold front will move down the island chain Monday through Wednesday bringing breezy southwesterly winds and rain, according to the latest forecast issued by the National Weather Service. The NWS is forecasting a second cold front will sweep through the islands from Thursday night and Friday with another round of rain and trade winds “becoming strong behind.”
On the Big Island summits, southwest winds of 50 to 70 mph will increase to 60 to 80 mph Tuesday. On the high summit of Haleakalā on Maui, southwest winds will build to 45 to 55 mph tonight and increase to 50 to 60 mph Tuesday.
The National Weather Service has extended the Flood Advisory for Maui until 11:30 a.m. At 8:25 a.m., radar and automated rain gauges indicated heavy rain over eastern and southern portions of Maui. Rain was falling at a rate of 1 to 2 inches per hour. The NWS reports some locations that will experience flooding include: Kahului, Kīhei, Kula, Kēōkea, Pukalani, Makawao, Hāliʻimaile, Keʻanae, Huelo, Haʻikū-Paʻuwela, Kaupō, Kīpahulu, ʻUlupalakua, Wailea, Nāhiku, Paʻuwela, Pāʻia, Mākena, Puʻunēnē and Māʻalaea.
Another cold front approaches the islands from the northwest, bringing up another round of unstable showers starting tonight and lasting through Wednesday.
A front rapidly approaching Kauaʻi from the northwest will move down the island chain today and tonight, delivering gusty west to northwest winds, brief bouts of heavy rainfall, and cool conditions, according to the National Weather Service.