Trade wind weather is expected through Saturday morning with our typical morning and evening windward and mauka showers. Isolated showers for leeward areas with some windward moisture pushing into lee spots from time to time on our 15 – 20+ mph easterly winds. Highs upper 80′s to maybe even 90 degrees. Lows in the 70′s.
Once the effects of WALI take hold we have the potential for heavy rain and even thunderstorms. It’s for that reason that the National Weather Service has issued a FLASH FLOOD WATCH from Saturday morning to Monday evening for Maui and the island of Hawaii. (All other islands are under the watch from Saturday evening through Monday evening) A FLASH FLOOD WATCH means that conditions may develop that could lead to flash flooding. It’s a heads up. If the WATCH gets upgraded to an ADVISORY (imminent threat) or WARNING (happening) we will post it right away. Along with the potential for rain will come humid and muggy conditions. For Maui County we expect to start feeling the effects of WALI on Saturday morning. The greatest chance of flooding will occur over windward slopes with lesser chances for leeward spots. At this point the National Weather Service is estimating up to 6 – 10 inches of rain for the wettest areas.