Wali continues to fizzle. Forecasters downgraded it to a tropical depression Friday morning and then to a post-tropical cyclone Friday afternoon.
It became the first tropical storm of the 2014 Central Pacific Hurricane Season Thursday.
Wali continues to move to the northwest at 12 mph and this motion is expected to continue until Wali dissipates within 36 hours.
At 5 p.m. Friday, it was 715 miles east southeast of Hilo and carried maximum sustained winds of 30 mph with higher gusts.
The storm is expected to bring heavy rain to the state with the possibility for flash flooding.
“The moisture from the remnants of Wali is going to crawl its way up the chain. It’s rather slow-moving,” said National Weather Service meteorologist Robert Ballard. “We expect some of that moisture to get to the Big Island on Saturday, and it will move its way again slowly up the chain, eventually reaching its way to Kauai and Oahu probably by Saturday night to Sunday, and then we have a threat for flash flooding during that time, until we get to the Monday timeframe, when we start to see some of that moisture begin to push out.”
Officials urge everyone to be prepared if you live in an area prone to flooding.
“With this moisture, along with the threat for heavy rain and flash flooding, comes the threat of getting some thunderstorms,” Chris Brenchley, NWS meteorologist.
The threat of rain has prompted the National Weather Service to issue a flash flood watch for all islands from 6 p.m. Saturday through 6 p.m. Monday.
Deep tropical moisture combined with an upper level trough will bring the threat of heavy rain and thunderstorms, according to the alert.
“Another thing that’s concerning is that the moisture’s not moving very fast, so it’s not like this is gonna be a six- or 12-hour period where we get showers and thunderstorms and then they’re gone. This could kind of hang around for a couple of days,” said Ballard.
Localized intense rainfall is likely to occur with the potential for flash flooding. The greatest chance of flooding will occur over Windward slopes with a lesser chance over Leeward locations.