First Alert Forecast: As one storm departs, we may need to get ready for the next one

News admin September 10, 2026 0 Comments

First Alert Forecast: As one storm departs, we may need to get ready for the next one

HONOLULU (HawaiiNewsNow) – As one storm leaves, another one may develop. We are keeping a close eye on a developing storm over the Eastern Pacific. It is just extra busy with El Nino. So we must be prepared.

Until then, Lowell Residual moisture from Tropical Storm Lowell stretching into to Big Island and portions of Maui County may bring a renewed threat of heavy showers through this evening, while sea breezes trigger spotty afternoon showers across the rest of the state. Trade winds will slowly build over the state late tonight into Thursday, though moisture remains elevated across much of the state. Drier trade wind weather is expected to develop Thursday night into early next week.

Afternoon satellite water vapor imagery shows drier air in the low and mid-levels spreading south into Maui County, with remnant moisture from Tropical Storm Lowell lingering across the Big Island. Scattered showers have developed from Molokai southward. Despite Precipitable Water around 2″ further south, peak rainfall rates over the Big Island have only been around 0.50″/hr so far.

Hi-res ensembles show little change in rainfall rates through the rest of the afternoon, increasing mainly on the windward sides of the islands tonight into Thursday morning as the band of tropical moisture shifts westward across the state and easterly flow strengthens slightly, and a few showers may spill over onto the leeward side. Instability remains marginal tomorrow, but enough to warrant a slight chance of thunderstorms with locally heavier rainfall over the interior of the Big Island this afternoon and again Thursday afternoon.

Friday through early next week, a large upper-level low well northeast of the state and weak troughing aloft will allow for light to moderate trade winds to prevail with a more typical trade showers concentrated along windward locations in the night to early morning hours. Humidity will also decrease during this period as low-level drying occurs.

View the latest weather conditions here.

Download the HNN Weather app from the Apple App Store or Google Play for the latest updates from your First Alert Weather Team: chief meteorologist Jennifer Robbins and weather anchors Guy Hagi, Dan Cooke, Ben Gutierrez, and Billy V.