Tag Archive | "flash flood warning"

Flash Flood, Hurricane and High Surf Warnings for Hawaii Island

Flash Flood Warning for the island of Hawaii in Hawaii County until 12:45 a.m. HST Thursday (Aug 23). At 9:39 p.m. HST, Hawaii County Civil Defense reported that Bayfront Highway in Hilo was closed due to flooding. High water levels are also being reported on the Honolii Stream, Kawainui Stream and Wailuku River. Radar and […]

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UPDATED: Flash Flood Watch discontinued for Hawaii Island Sunday (April 15)

This is a Civil Defense Flash Flood Watch update for Sunday, April 15 at 4 p.m. The National Weather Service has discontinued the Flood Watch for the Island of Hawaii. A Flood Advisory is still in effect for East Hawaii.

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A Flash Flood Watch is in effect through Thursday afternoon (Sept 15) for Hawaii Island.

A very moist and unstable air mass interacting with an upper level trough will result in unsettled weather with the potential for flash flooding.

Flash Flood Watch for Hawaii Island, power outages occuring

A Flash Flood Watch is in effect through Thursday afternoon (Sept 15) for Hawaii Island. A very moist and unstable air mass interacting with an upper level trough will result in unsettled weather with the potential for flash flooding.

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The National Weather Service in Honolulu has issued a Flash Flood Warning for Hawaii Island until 8 p.m.

At 4:52 p.m. weather radar and rain gages indicated that heavy rain is persisting over the slopes in the South Kohala and North Kona districts. Gulches crossing Mamalahoa Highway (Route 190) between Puuanahulu and Waimea were at risk of overflowing. Some of these gulches also flow near Waikoloa Village and into Puako. Rainfall may continue for several more hours.

Flash Flood Warning for Hawaii Island due to heavy rains

The National Weather Service in Honolulu has issued a Flash Flood Warning for Hawaii Island until 8 p.m. At 4:52 p.m. weather radar and rain gages indicated that heavy rain is persisting over the slopes in the South Kohala and North Kona districts. Gulches crossing Mamalahoa Highway (Route 190) between Puuanahulu and Waimea were at […]

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Sunday (July 24) 5 p.m. UPDATE: Flash Flood Watch is cancelled for Hawaii County

The National Weather Service in Honolulu has cancelled the Flash Flood Watch for Hawaii County. At 6 a.m. Hawaii County Police report Mamalahoa Highway (Route 11) at Kawa Flats is fully open to traffic.

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At 9:23 p.m. weather radar showed a large band of heavy rain moving onshore into the Ka‘u district of Hawaii Island from east of Volcano to South Point. The heavy rain will continue moving slowly to the northwest into upslope areas with rainfall rates of 2 to   3 inches per hour likely. The ground is already saturated in this area from earlier heavy rains. Excessive runoff is likely and Highway 11 at Kawa Flats may be vulnerable to closure due to flooding.

9:30 p.m. UPDATE: Flash Flood Warning for Hawaii Island

At 9:23 p.m. weather radar showed a large band of heavy rain moving onshore into the Ka‘u district of Hawaii Island from east of Volcano to South Point. The heavy rain will continue moving slowly to the northwest into upslope areas with rainfall rates of 2 to 3 inches per hour likely. The ground is […]

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The National Weather Service in Honolulu has extended the flash flood warning for Hawaii Island until 2:30 a.m. Saturday (March 26).

At 11:17 p.m. weather radar and gages continue to report heavy showers and thunderstorms moving across the north Kona and both Kohala districts.

Flash flood warning extended, flood watch issued for Hawaii Island Friday (March 25)

The National Weather Service in Honolulu has extended the flash flood warning for Hawaii Island until 2:30 a.m. Saturday (March 26). At 11:17 p.m. weather radar and gages continue to report heavy showers and thunderstorms moving across the north Kona and both Kohala districts.

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Weather advisory map via National Weather Service/NOAA

Flash flood warning issued for Hawaii Island Saturday (Oct 17)

The National Weather Service in Honolulu has issued a flash flood warning for Hawaii Island until 6 p.m. Saturday (Oct 17). At 2:53 p.m. weather radar indicated nearly stationary thunderstorms producing heavy rain and flash flooding over the leeward and interior sections of Hawaii Island. Radar was showing rain falling at up to three inches […]

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Flash flood warning due to heavy rains, highway closed in Ka`u

UPDATED (10:31 p.m. on 9/17/2015) Hawaii Police Department reports that Highway 11 is now open between the 58 and 59 mile markers. All roads and highways are open at this time. Original Post (6:57 p.m. 9/17/15) The National Weather Service has issued a flash flood warning for Hawaii Island until 9 p.m. Thursday (Sept 17). […]

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The National Weather Service in Honolulu has issued a Flood Advisory for Hawaii Island until 11:30 p.m. Wednesday (Sept 16). Hawaii Police Department reports that Highway 11 between 58 and 59 mile marker is now open to traffic. All roads and highways are open at this time.

Flood advisory for Hawaii Island Wednesday (Sept 16)

The National Weather Service in Honolulu has issued a Flood Advisory for Hawaii Island until 11:30 p.m. Wednesday (Sept 16). Hawaii Police Department reports that Highway 11 between 58 and 59 mile marker is now open to traffic. All roads and highways are open at this time.

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Police report: Hualalai Road at the intersection of Oni Oni Street in Kailua-Kona is now open, proceed with caution.

The flash flood warning has been replaced with a flash flood watch until midnight tonight.

A very moist and unstable air mass will continue to produce locally heavy showers and thunderstorms this evening. Saturated soils from recent and current rainfall across the state will increase the risk for flash flooding.

Flash flood watch for Hawaii island until midnight

Police report: Hualalai Road at the intersection of Oni Oni Street in Kailua-Kona is now open, proceed with caution. The flash flood warning has been replaced with a flash flood watch until midnight tonight. A very moist and unstable air mass will continue to produce locally heavy showers and thunderstorms this evening. Saturated soils from […]

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Mamalahoa Highway (Hwy 11) in Ka‘u is closed between the 58 and 59 mile markers due to flooding across the roadway making it impassible. There is no projection as to when the roadway will open due to heavy rains.

Flash flood watch for Hawaii Island, intermittent road closure in Ka‘u due to flooding

The National Weather Service Flash Flood Watch for Hawaii Island remains in effect. Due to unstable weather conditions and very moist air across the state, the flash flood watch will remain in effect through 6 p.m. Tuesday (Aug 25).

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At 8:54 p.m. weather radar showed areas of heavy rain developing near Kailua-Kona, the Hawaii Volcanoes National Park and Hawi. These areas of heavy rain were nearly stationary.

Currently heavy rains and some flooding conditions are being reported across areas of both east and west Hawaii. The current unstable weather conditions are likely to continue through tomorrow and result in periods of heavy rains across all parts of the island.

Flash Flood Advisory for Hawaii Island Monday (Aug 17), some roadways closed

At 8:54 p.m. weather radar showed areas of heavy rain developing near Kailua-Kona, the Hawaii Volcanoes National Park and Hawi. These areas of heavy rain were nearly stationary. Currently heavy rains and some flooding conditions are being reported across areas of both east and west Hawaii. The current unstable weather conditions are likely to continue […]

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Flash Flood Warning issued for North Hawaii due to heavy rains

The National Weather Service in Honolulu has issued a Flash Flood Warning for the Big Island until 8:45 a.m. Tuesday (Dec 23). At 5:18 a.m. weather radar showed heavy rain over North Hawaii and along the Hamakua Coast. This area of heavy rain was nearly stationary. Other locations in the warning area include, but are […]

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