The National Weather Service has cancelled the flash flood watch for Kauai, Niihau and Oahu.
Trade winds replacing the current southeasterlies into Monday will bring a slightly drier and more stable air mass. Clouds and showers will diminish overall through mid-week, but also will become more focused along windward slopes. Unsettled weather may return for next weekend.
The flood advisory for the island of Hawaii was cancelled as of 9:56 p.m. Saturday.
- Stay away from streams, drainage ditches, and low lying areas prone to flooding.
- Rainfall and runoff will also cause hazardous driving conditions due to ponding, reduced visibility, and poor braking action.
- Do not cross fast flowing or rising water in your vehicle or on foot. Turn around, don’t drown.
Closures and Cancellations:
- DLNR has closed the Kalalau Trail in the Napali Coast State Wilderness Park today due to the potential of flooding in the area. Streams that cross the trail may, without notice, rise rapidly and their flow rate increase dramatically.
- The Kekaha Landfill is closed due to lighting and muddy conditions until further notice. Green waste is currently not being accepted at any of the refuse transfer stations. In addition, all recycling programs on the lower level of the Hanapēpē transfer station have been suspended including tires, propane tanks, scrap metal and appliances. The services will resume when conditions improve.
FLASH FLOOD WATCH
The flash flood watch continues for Kauai, Niihau and Oahu through 6 a.m. Sunday, Sept. 13.
Moisture associated with former tropical cyclone Jimena and a trough aloft northwest of the islands will make conditions favorable for locally heavy showers. Saturated soils from recent rainfall will increase the risk for flash flooding.
- A flash flood watch means that conditions may develop that lead to flash flooding. Flash flooding is very dangerous. Remember that it does not have to be raining heavily where you are for flash flooding to occur.
- You should monitor later forecasts and be prepared to take action should flash flood warnings be issued.
Brown Water Advisory
A brown water advisory for the island of Oahu. Heavy rains have resulted in storm water runoff entering into coastal waters.
- Full Story: Brown water advisory issued for Oahu
“Jimena has been downgraded to a post-tropical cyclone as of 5 pm HST today. We are anticipating a boost in rain coverage and intensity beginning Thursday afternoon and continuing through Saturday as moisture along the southern edge of Jimena move across the state. Highest rain impacts will likely be over the smaller islands, where a flash flood watch goes into effect at noon Thursday. With already saturated grounds around the state, it will take less rain to initiate flash flooding. Warm, humid conditions with light southerly winds will also persist over the next several days. Heat indices will approach 100 F at the low elevations.” – Central Pacific Hurricane Center