Extreme Rain, Flooding And Heavy Snowfall Hit Hawaii With 22 Inches Of Rain In 24 Hours And 4 Feet Deep Snowdrifts

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This weekend weather events produced rainfall totals and river peak values not experienced on Big Island since Hurricane Lane in August 2018.

The 24-hour rainfall total at the Hakalau gauge on the Hāmākua Coast measured just shy of 21 inches as of 7 a.m. Sunday, while the Saddle Quarry gauge, upslope of Hilo Bay, registered roughly 22 inches during the same period.

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4 feet high snow drifts on Mauna Kea summit on january 13 2020.

And rain has continued to fall steadily in those areas into the afternoon, prompting residents to compare impacts to what they’ve experienced during Hurricane Lane.

The Wailuku River’s peak values topped out at just below 22 feet. During Hurricane Lane, the same levels peaked around 24 feet. Considering typical water values between two and three feet, that is insane!

A stream named Honoli’i also came close to Hurricane Lane peak levels (18 feet), rising to 17 feet.

However, during the Lan, all of this rain fell over several days. In comparison, last weekend, the high amount of rain fell within less than 24 hours. Amazing, no?

The sunday’s storms were so intense that several roads from Puna to Hāmākua remain closed and a flood advisory stayed in effect until at least Monday afternoon.

Heavy snowfall at higher elevation in Hawaii

Almost one year after an unusual winter storm brought snow to Maui, heavy snow hampered access to summits on Big Island.

As of 7 a.m. Sunday, all observatories were inaccessible. Astronomers were unable to traverse the path beyond Park Two. It was blocked by at least six inches of new snow.

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While heavy rain flooded Big Island valleys, heavy snow fell at higher elevation. Pictures by NOAA

In the afternoon, four feet deep snowdrifts were found between Park Two and the summit. The were even deeper further up. Similar headlines on Strange Sounds and Steve Quayle [BIN]

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1 COMMENT

  1. Sistan and Balouchestan Floods Left Damages
    Sistan and Balouchestan Floods Left Damages

    TEHRAN (Iran News) – Flash floods in Iran’s southeastern province of Sistan and Balouchestan have inflicted damages to more than 20,000 residential buildings, a provincial official said. Heavy rains in southern areas of the province triggered the sudden flooding, Abbasali Arjmandi, director-general of Sistan and Balouchestan Crisis Management Center told Tasnim on Sunday. He added […]

    TEHRAN (Iran News) – Flash floods in Iran’s southeastern province of Sistan and Balouchestan have inflicted damages to more than 20,000 residential buildings, a provincial official said.

    Heavy rains in southern areas of the province triggered the sudden flooding, Abbasali Arjmandi, director-general of Sistan and Balouchestan Crisis Management Center told Tasnim on Sunday.

    He added that at least 20,000 residential buildings and villages have sustained damage.

    The flash floods have also blocked rural roads leading to more than 500 villages and closed schools, Arjmandi said, adding that six villages have been evacuated so far.

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