HONOLULU (HawaiiNewsNow) – Your HNN First Alert Weather Team has declared First Alert Weather Days by way of Sunday due to the specter of heavy rain and flash flooding for Oahu, Maui County and Hawaii Island.
We are monitoring a Kona low that has already produced rainfall that induced catastrophic flooding on Oahu’s North Shore.
The National Weather Service has additionally issued a Flood Watch for all the principle Hawaiian islands from 6 p.m. Thursday by way of 6 p.m. Sunday.
A Flash Flood Emergency was issued for the North Shore of Oahu on Friday, however has been allowed to expire.
A Flash Flood Warning stays in impact for the island of Maui till 9 PM on Saturday as thunderstorms have popped up on the radar.
A Special Marine Warning is in impact for the coastal waters off of windward Oahu and Molokai due to robust thunderstorms.
A Winter Storm Warning is in impact for the island of Hawaii Island till Sunday. Heavy snow on the summits shall be attainable with complete accumulations up to 10 inches anticipated above 12,000 ft.
The low-pressure space is weaker than final week’s system, however has already produced rainfall that has triggered flash flooding, as rain is falling on already soaked floor. The saturated floor can not take in any additional rainfall, exacerbating the flooding menace.
Several rounds of reasonable to heavy rainfall are anticipated as the kona low develops and attracts extra considerable moisture over the islands.
The newest forecast knowledge means that the best rainfall totals all through the weekend shall be over Oahu and Maui County.
Hawaii Island and Kauai may nonetheless see heavy rainfall, so residents ought to stay on alert. It is not going to take a lot rainfall for flash flooding to happen.
Day-by-day forecast
Saturday: Heavier rainfall shall be targeted on the central islands of Oahu, and Maui County, with drier air anticipated over Kauai and fewer moisture for Hawaii Island. At this level, even reasonable charges of rainfall shall be sufficient to set off flash flooding as the bottom is extraordinarily saturated from final week’s storm. The Flood Watch for Kauai has been cancelled due to extra steady situations there.
Heavy rainfall stays attainable, primarily for Oahu and Maui County.
Sunday: This band of heavy showers will advance to Hawaii Island on Sunday. Expect greater rainfall totals over windward Hawaii Island all through Sunday and linger into Monday. Some pop up storms are attainable for Oahu and Maui County.
Rain Check: 5-day totals show Kona Low dumped more rain than expected across Hawaii
Anyone not too long ago impacted by flooding is urged to keep alert this week — even when the general threat is decrease.
Five-day rainfall totals from the primary Kona storm are posted beneath.
Winds: Winds is not going to be as a lot of a priority with the approaching Kona Low system. Breezy to gusty southerly winds will stay all through Saturday.
Some gusts may climb between 30 – 45 miles per hour on Saturday. These gusts, after all, shall be a lot weaker than the earlier Kona low. However, some downed bushes and energy strains are nonetheless attainable due to the extraordinarily saturated floor.
Sustained winds southerly winds between 15 – 25 miles per hour are attainable, shifting to be extra southwesterly all through the weekend.
View the latest weather conditions here.
Download the HNN Weather app from the Apple App Store or Google Play for the newest updates out of your First Alert Weather Team: chief meteorologist Jennifer Robbins, meteorologist Drew Davis, and climate anchors Guy Hagi, Ben Gutierrez, and Billy V.
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