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Oahu flood advisory extended; Islands under flash flood watch

  • ACCUWEATHER.COM / NATIONAL WEATHER SERVICE
    This radar image taken Friday morning shows heavy showers moving over Oahu and more showers offshore to the south.
  • NOAA / NATIONAL WEATHER SERVICE
    This satellite image taken Friday morning shows remnants of former Hurricane Jimena pulling moisture and clouds up from the south over Oahu and other islands.
  • CRAIG T. KOJIMA / CKOJIMA@STARADVERTISER.COM
    The downtown skyline was barely visible through the rain Friday morning.
  • NASA/NOAA GOES PROJECT
    NOAA's GOES-West satellite captured an infrared look at the remnants of Tropical Storm Jimena Thursday, moving north of Hawaii.
  • GOAKAMAI.ORG
    This traffic camera image Friday morning shows heavy rain and wet roads on the H-1 freeway near Ward Avenue.
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Rain with rates of 1 to 2 inches per hour moved ashore  from the south early Friday morning, prompting a flood advisory for Oahu.

The National Weather Service extended the advisory for the entire island until 8:30 a.m. as the rains continued and more rains moved over the island from the south.

Unstable weather conditions combined with tropical moisture from Jimena are creating the potential for heavy rains and flooding  through Saturday.

Islands from Niihau to Maui are under a flash flood watch through Saturday.

“Locally heavy showers and a few thunderstorms are expected today and Saturday as moisture associated with post tropical cyclone Jimena, along with an upper level trough just to the northwest of Kauai will combine to bring unsettled weather,” the weather service said.

Jimena is no longer a tropical depression and its remnants were about 350 miles northwest of Honolulu, slowly drifting west at 2 a.m. Friday, the Central Pacific Hurricane Center said.

The forecast for Friday calls for mostly cloudy skies, vog, and frequent showers with locally heavy rainfall possible. Highs will be between 87 and 92 and viable winds to 15 mph.

“Winds will remain light, but shift southeast on Friday through Sunday, then gradually shift back to easterly Monday and Tuesday. Warm and humid conditions will also continue through the weekend as winds keep backing to a more southeasterly flow. Afternoon heat index values will approach 100 degrees at the lower elevations over the next several days,” forecasters said.

There is some relief in sight. Cooling tradewinds could return by the middle of next week.

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