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Tropical systems Gilma and Hector have weakened but still pose threat to Hawaii

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Tropical systems Gilma and Hector have weakened but still pose threat to Hawaii



Experts say this weekend could be a historic one for Hawaii, as the state has never had more than two tropical storm systems pass near the islands during previous hurricane seasons.

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A pair of tropical systems are forecast to further lose strength as they approach the islands of Hawaii, lessening chances of dangerous weather conditions as the state faces a rare cluster of storms over Labor Day weekend.

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Tropical Storm Gilma, the closer of the two storms, has weakened in recent days after it peaked in strength as a Category 3 hurricane last weekend. Federal forecasters project Gilma will be downgraded from a tropical storm on Thursday or Friday, when it’s expected to begin dumping rain over the islands.

Hector, formerly a tropical storm, dissipated early Thursday morning more than 1,000 miles from Hilo, Hawaii, according to the Central Pacific Hurricane Center, which has released its final update about the storm. Cold water east of Hawaii is one of the main culprits causing the weakening.

On Friday, Gilma is forecast to track north of Hawaii, unleashing heavy rain and gusty showers, according to AccuWeather. Since the storm no longer has a strong eyewall, its impacts will be limited. However, the storm could still trigger flash floods and pose a potential threat of mudslides.

“One key point to consider even with a poorly organized tropical feature, such as a tropical rainstorm that passes just to the north of the islands, is that some of the south-facing slopes of the islands may get more rain than if a hurricane, such as Hone, was passing by to the south,” AccuWeather lead long-range meteorologist Paul Pastelok said.

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In addition to dumping heavy rain over the islands, Gilma could alleviate drought conditions in some “hard-to-reach areas,” according to AccuWeather. Last week, Tropical Storm Hone lashed the Big Island with Hawaii as it passed to the south as a hurricane, causing flooding and knocking out power to thousands of homes and businesses. The storm also dumped enough rain to cause authorities to discontinue several wildfire red flag warnings.

Wildfire dangers are top of mind for Hawaiians, especially when strong storms pass offshore. Last year, the winds of Hurricane Dora, which stayed hundreds of miles off the coast of the Hawaii islands, contributed to the deadliest wildfires in the U.S. in over a century.

The Big Island is forecast to begin receiving thunderstorms and showers late Thursday and Friday before the storms spread over the other islands over the holiday weekend, AccuWeather said. Ahead of the rain, Gilma is expected to produce rough seas and strong surf along the coast.

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Forecasters say Hector, now a tropical rainstorm, will unload more heavy rain and winds across Hawaii beginning Sunday and continuing into next week – starting just after Gilma moves away from the state. The rain could exacerbate any ongoing flooding as the storm passes either to the north of Hawaii or directly over the islands.

This weekend could be a historic one for Hawaii, as it has never had more than two tropical storm systems pass close to the islands during previous hurricane seasons, according to AccuWeather. Additionally, the last time two tropical systems storms hit the islands within a week was in September 1992.



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Severe flooding triggers road closures, evacuations in Manoa

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Severe flooding triggers road closures, evacuations in Manoa


HONOLULU (HawaiiNewsNow) – Portions of Manoa flooded Monday after several days of heavy rain.

According to Honolulu police, flooding was observed at multiple locations along East Manoa Road, including the intersections with Lowery Avenue, Akaka Place, and Oahu Avenue. That portion of the road is closed, and drivers are being asked to avoid the area.

Your HNN First Alert Weather Team declared Monday a First Alert Weather Day due to the threat of heavy rain and flash flooding.

The area was under a flash flood warning, with rain falling at 1 to 2 inches per hour and stream levels running very high.

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Flooding at Manoa Marketplace(Hawaii News Now)

Viewers have been sending Hawaii News Now photos and videos showing flooded roads and vehicles submerged in water at Manoa Marketplace.

Heather Damon said the rain “has not stopped for days. The ground is so saturated.”

The University of Hawaii at Manoa is asking students and employees to stay inside and off roads unless absolutely necessary until further notice, citing severe rain and flooding in some parts of campus.

In an alert, UH said officials are at faculty housing to address issues in the area. UH also said some student housing — Hale Wainani G and H — is being evacuated, and residents should follow all staff instructions.

Stay with Hawaii News Now for the latest First Alert Weather Day coverage.

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More pushback on county housing plan – Hawaii Tribune-Herald

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More pushback on county housing plan – Hawaii Tribune-Herald






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Historic flood emergency prompts mass rescues in Hawaii

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Historic flood emergency prompts mass rescues in Hawaii


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In Hawaii, historic flooding is putting thousands at risk after the most rain in decades is prompting mass rescues and evacuations, with officials saying the threat isn’t over yet. NBC News’ Steve Patterson reports.

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