Hawaii News Now is tracking a developing tropical system that could become Tropical Storm Nolo and bring significant rainfall to Maui County and the Big Island later this week. The National Hurricane Center has assigned the system a high probability of development, with potential impacts beginning as early as Wednesday and intensifying Thursday into Friday.
- The remnants of Tropical Depression 15-E south of Hawaiʻi are organizing and may soon be named Tropical Storm Nolo.
- The National Hurricane Center gives the system a 70% chance of developing within 48 hours and a 90% chance within 7 days.
- Heavy rain, gusty winds, and thunderstorms are possible starting Wednesday, with the most significant impacts expected Thursday into Friday.
- The Big Island’s windward and eastern areas face the greatest risk; Maui County is also on alert.
- Most forecast models keep the system south of Hawaiʻi, but track uncertainty remains high.
- Some model scenarios show 20+ inches of rain possible in parts of the western islands — forecasters stress this is not an official forecast and numbers could change significantly.
- Friday has been designated a First Alert Weather Day for the eastern islands of Hawaii.
Sources
- Hawaii News Now: First Alert Forecast: Tracking developing storm “Nolo” that could bring significant rain to Hawaii Island and Maui County
- Hawaii News Now (AMP): First Alert Forecast: Tracking developing storm “Nolo” that could bring significant rain to Hawaii Island and Maui County
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