By Jeff King
UPDATE: The National Weather Service has, in fact, extended the Flash Flood Advisory for MAUI. Radar at 9:36 a.m. showed steady heavy rain over West Maui and Kahalawai. The new advisory is in effect until 12:45 p.m. today.
A brief but powerful late season cold front surprised many in Maui County Sunday night into today. Light showers last night gave way to occasional downpours overnight. Flash Flood Warnings were issued at 4 a.m. for northwest Maui as rain fell at rates up to an inch per hour. Around 7 a.m. that warning extended to north shore Maui as a cell “parked” over Haiku, where .35 inches have fallen so far.
Other significant rainfall totals from this front so far have been at Kula (.27 inches), Kaho’olawe (.35 inches) and Pukalani (.25). The largest total from this episode has been the upper Kula gage mauka of Ulupalakua where more than three quarters of an inch of rain has fallen (.78).
Kihei actually received significant amounts from this front – logging .27 inches of rain
The National Weather Service issued a FLOOD ADVISORY for the ISLAND OF MAUI in effect until 9:45 a.m. This advisory replaced the Flash Flood Warning and may be reissued if heavy rain persists. The advisory was allowed to expire at that time.
EFFECTS: At 6:45 a.m. radar showed areas of heavy showers along windward slopes of West Maui and Haleakala, and stream gages were running higher than normal. The showers were nearly stationary.
Other locations in this advisory include but are not limited to: Pauwela, Napili, Kapalua, Kahakuloa, Hookipa Beach Park, Honolua, Honokowai and Honokokau.
PRE, Kula Branch station (CAUTIONARY MEASURES: STAY AWAY FROM STREAMS, DRAINAGE DITCHES AND LOW LYING AREAS PRONE TO FLOODING. RAINFALL AND RUNOFF WILL ALSO CAUSE HAZARDOUS DRIVING CONDITIONS DUE TO PONDING, REDUCED VISIBILITY AND POOR BREAKING ACTION. DO NOT CROSS FAST FLOWING OR RISING WATER IN YOUR VEHICLE OR ON FOOT. TURN AROUND, DON’T DOWN.
INFORMATION: Maui Civil Defense Agency will continue to monitor the situation. Please listen to your local radio and TV stations or NOAA Weather broadcasts for any updates. NOAA Weather broadcasts can be reached by calling 1-866-944-5025. NOAA Weather internet services can be found at www.prh.noaa.gov/hnl.
Pre-recorded advisories and notifications are available 24-hours a day on the Maui County Automated Information System (AIS) by calling 986-1200.