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Fox News Weather Center

Hawaii to Escape Direct Hit From Tropical Storm Oho

Despite Tropical Storm Oho not making landfall across Hawaii, localized downpours and rough surf will rattle the islands into late week.

Moisture associated with Oho will enhance shower activity through the week, potentially leading to localized flash flooding and mudslides, especially on the Big Island.

Oho formed late on Friday night local time as the seventh tropical cyclone to develop in the central Pacific this season. It later became Tropical Storm Oho early on Saturday morning local time.

The formation of Tropical Depression Seven-C marked a new record for the number of tropical cyclones to develop in the central Pacific in a hurricane season, the Central Pacific Hurricane Center said.

The record number of tropical cyclones in the central Pacific this season could be related to the developing strong El Niño.

El Niño relates to warmer-than-normal sea-surface temperatures in the equatorial Pacific. The warmer the ocean waters become, the greater the potential for tropical development.

Oho is expected to continue to track to the northeast away from Hawaii through the week. Oho may briefly strengthen to a hurricane by midweek before it is expected to weaken into late week as it enters an area of strong wind shear.

Despite missing a direct hit, downpours will strike the Big Island of Hawaii as well as Maui. Drivers should be extra cautious when traveling at high speeds on wet roads to reduce the risk of hydroplaning.

Rough surf will rattle the northern-, southern- and eastern-facing shores of the Big Island. This could lead to dangerous seas for boaters and swimmers. This can even catch seasoned surfers off guard.

Portions of the Big Island of Hawaii and Maui have seen quite a bit of rain as of late. Hilo, Hawaii, has received over 30 inches of rain since Sept. 1. That is nearly three times the normal amount for that period.

Kailua and Kahului, Hawaii, have seen about one-and-a-half times the amount of rainfall since Sept. 1.

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"During El Niño years, the number of tropical systems developing in or moving into the Central Pacific basin is higher than average and can result in a significant impact on Hawaii," AccuWeather Senior Meteorologist Alex Sosnowski said.