WEATHER BLOG: Wind Advisory canceled, brown water advisory in ef - Hawaii News Now - KGMB and KHNL

WEATHER BLOG: Wind Advisory canceled, brown water advisory in effect

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Kamehameha Highway at Kahaluu | Courtesy Christine Medaglia Kamehameha Highway at Kahaluu | Courtesy Christine Medaglia
Kamehameha Highway at Waikane Stream | Courtesy Christine Medaglia Kamehameha Highway at Waikane Stream | Courtesy Christine Medaglia
HONOLULU (HawaiiNewsNow) -

[Update 10:00 a.m.]

The National Weather Service in Honolulu has canceled a  high wind advisory that was in effect for Oahu, Maui, Molokai, Kauai, Lanai and Niihau.

Heavy rains and run-off due to flood conditions have prompted officials to issue a brown water advisory. Residents are advised to stay out of the ocean near the mouth of streams, where conditions may be most severe.

At this time, there are no current flood warning's in effect across the state.

[Update 4:00 a.m.]

The National Weather Service in Honolulu has let the flash flood warning for Maui expire. At this time, there are no current flood warning's in effect across the state.

Heavy rains and run-off due to flood conditions have prompted officials to issue a brown water advisory. Residents are advised to stay out of the ocean near the mouth of streams, where conditions may be most severe. 

A high surf advisory for north and east-facing shores remains in effect until later Monday afternoon. Surf along north-facing shores has been measured between 12 and 16 feet. 

A high wind advisory also remains in effect for Oahu, Maui, Molokai, Kauai, Lanai and Niihau until 12 p.m. on Monday.

Keep track of severe weather with our Interactive Radar.

You can also keep track of all of the latest severe weather alerts and conditions with the Hawaii News Now Weather Now App: http://bit.ly/GWCI91.

 

[Update 12:45 a.m.]

The National Weather Service in Honolulu has issued a Flash Flood Warning for the island of Maui until 3:30 a.m.

Forecasters said at 12:24 a.m., the Iao Steam gauge showed a rapid rise in water levels above the flood stage due to heavy rain over the West Maui Mountains. Other streams such as Waihee River and Waiehu Stream will be susceptible to flash flooding. An area of heavy rain in the West Maui Mountains was nearly stationary.

Other locations in the warning include but are not limited to Wailuku, Waikapu, Waihee, Kahakuloa, Honolua and Honokohau.

A Flash Flood Warning means flash flooding is imminent or occurring in streams, roads and low-lying areas. Move to higher ground now.


[Update 11:00 p.m.]

Flood Advisories are now in effect for Maui until 1:30 a.m., and the Big Island of Hawaii until 1 a.m.

The National Weather Service said on the Big Island, radar showed heavy rain along the entire windward coast. Ponding in roadways was reported in several areas by emergency management officials.

Locations in the advisory include but are not limited to Waipio Valley, Paauilo, Honokaa, Hilo, Mountain View, Upolu Airport and Hawi.

On Maui at 10:24 p.m., stream gauges at Waihee River and Honokohau Stream showed both were near flood stage levels. Rain was also falling at a rate of at least one inch per hour across the West Maui Mountains and windward slopes of Haleakala. The area of heavy rain was nearly stationary.

Other locations in the advisory include but are not limited to Hana, Kanaha Beach Park, Wailuku, Waikapu, Waihee, Waiehu, Spreckelsville, Puunene, Pukalani, Pauwela, Paia, Napili, Makawao, Keanae, Kapalua, Kahakuloa, Huelo, Hookipa Beach Park, Honolua, Honokowai, Honokohau, Haliimaile and Haiku.

Persons in the advisory areas should avoid streams, drainage ditches and other low-lying areas prone to flooding. Rainfall and runoff will also cause hazardous driving conditions due to reduced visibility, ponding on roadways and poor braking.

The advisories may be extended if heavy rain persists.

 

[Update 7:50 p.m.]

The Flood Advisory for Maui County has been extended to 10:45 p.m. The National Weather Service said at 7:30 p.m. the radar showed heavy showers along the windward slopes of Haleakala. Other locations include Huelo, Keanae, Nahiku, Hana,Hamoa and Kipahulu.

The Flood Advisory for Hawaii Island expired at 5:15 p.m.  

However, forecasters say there's still a chance of brief heavy showers throughout the state.

 

[Update 5:00 p.m.]

A Flood Advisory is in effect until 7:45 p.m. for East Maui.

The National Weather Service said at 4:30 p.m., radar showed heavy showers falling along the windward slopes of Haleakala. 

Other locations in the advisory include but are not limited to Huelo, Keanae, Nahiku, Hana, Hamoa and Kipahulu.

Persons in the advisory area should stay away from streams, drainage ditches and low-lying areas that are prone to flooding. Rainfall and runoff will also cause hazardous driving conditions due to ponding, reduced visibility and poor braking.

 

[Update 2:45 p.m.]

The National Weather Service has issued a Flood Advisory for the leeward side of the Big Island of Hawaii until 5:15 p.m.

Forecasters said at 2:06 p.m., radar showed heavy showers and thunderstorms along the leeward slopes from Puuanahulu to Honaunau.

Other locations in the advisory include but are not limited to Keahole Point, Waikoloa Beach Resort, Waikii, Kailua-Kona, Keauhou and Captain Cook.

Persons in the advisory area should stay away from streams, drainage ditches and other low-lying areas prone to flooding. Rainfall and runoff will also cause hazardous driving conditions due to ponding, reduced visibility and poor braking.

 

[Update 11:10 a.m.]

The Flash Flood Watch for Molokai, Lanai and Maui has been cancelled. 

  • National Weather Service says widespread heavy showers is not expected.

 

[Update 9:15 a.m.]

A Wind Advisory has been issued for Maui, Lanai, Molokai, Oahu, Kauai and Niihau. 

  • The advisory is in effect until 6 a.m. Monday morning. Winds are expected from the northeast at 30 to 35 mph with gusts up to 50 mph. The National Weather Service expects winds to peak Sunday afternoon into the evening and then diminish overnight.

 

[Update 6:35 a.m.]

 A Flash Flood Watch continues for Molokai Lanai and Maui through noon today.

  • An Upper level trough and a surface boundary will keep potential for Flash Flooding over much of Maui County with rainfall focused across Windward sections.

[Update 11:35 p.m.]

The National Weather Service has issued a Flood Advisory for the island of Molokai.

  • Until 2:30 a.m.

  • At 11:24 p.m., radar showed heavy rain 6 miles southeast of Kalaupapa, or about 35 miles northwest of Kahului. The area of heavy rain was nearly stationary.

  • Other locations in the advisory include but are not limited to Molokai airport. A Flash Flood Watch is also in effect for Kauai Oahu Molokai Lanai and Maui through 6 am HST Sunday. This advisory may need to be extended beyond 2:30 am if Heavy Rain persists.
Follow the storm with our Interactive Radar.


[Update 11 p.m.]

The National Weather Service has issued a Flash Flood Warning for Oahu until 1:50 a.m.

  • At 10:42 p.m. heavy rain is falling over Oahu with multiple rain gages and radar data reported rain rate near 2 inches per hour. The Waiakeakua stream in the upper Manoa is near the flood stage according to the river stage. The heavy rains are nearly stationary.

  • Other locations in the warning include but are not limited to Haleiwa, Kahuku, Kaneohe, Honolulu and Mililani. This Flash Flood Warning replaces the Flood Advisory that was in effect for the island of Oahu in Honolulu County. 
  • This Flash Flood Warning replaces the Pre-existing warning that was in effect for the island of Oahu in Honolulu County. Runoff from this storm may also cause rock and mudslides in steep terrain. This warning may need to be extended beyond 1:45 am if Flash Flooding persists.

[Update 8:30 p.m.]

On the radar, heavy rains are reforming over parts of windward Oahu. At 8 p.m.: the Waikane stream gage reported river stage over 6 feet and radar data is showing another round of heavy rains with rates of 2 inches per hour are moving into the area. Due to the heavy rain...gauges show streams across windward Oahu quickly rising. Other locations in the warning include but are not limited to Laie...Kahuku and Hauula. Make sure to share your weather reports and photos and download Hawaii News Now Weather APP for the latest information.

 

[Update 5:50 p.m.]

The National Weather Service has replaced the flash flood warning on Oahu with a Flood Advisory until 8:45 p.m.

The advisory covers the entire island of Oahu.

Forecasters said at 5:37 p.m., radar showed heavy showers from Manoa to Waimanalo, and from Hauula to Waiahole. These showers were moving to the southwest at ten miles per hour. Rainfall rates in excess of one inch per hour have been measured by area rain gages.


[Update 5:40 p.m.]

The National Weather Service will allow the flash flood warning for Oahu to expire at 5:45 p.m.

A Flash Flood Watch remains in effect for Kauai, Oahu, Molokai, Lanai and Maui until late tonight.

 

[Update 5:30 p.m.]

The National Weather Service in Honolulu has extended the Flash Flood warning for Kauai until 8:30 p.m.

At 5:18 p.m., Kauai Civil Defense reported that the Kuhio Highway at the Hanalei River remains partially open to traffic. More heavy rain is falling in the interior areas of the island, and additional rises in the Hanalei River and other rivers across north and northeast Kauai are possible.

 

[Update 3:40 p.m.]

Oahu Department of Emergency Management officials report one to one and-a-half feet of water across Kamehameha Highway and Waihee Road at Waikane Stream. However, at last check the highway remained opened.

Showers continue to fall across the Koolau Range with rates of 2 to 3 inches per hour, with additional heavy rainfall set to move onto Windward Oahu through the afternoon.

 

[Update 3:30 p.m.]

The National Weather Service has extended the Flash Flood Warning for Kauai until 5:30 p.m.

Forecasters said at 3:12 p.m., Civil Defense reported that the Kuhio Highway remains closed at the Hanalei River due to flooding. The American Red Cross has opened a shelter at Hanalei Elementary School for people affected by the flash flooding that closed the Hanalei Bridge.

Additional heavy showers persist over the interior of the Garden Isle, and a flood threat remains for other streams on northern and northeast Kauai.

Other locations in the warning include but are not limited to Haena, Na Pali State Park, Moloaa, Kalalau Valley, Princeville, Kilauea and Hanalei.

A Flash Flood Watch remains in effect for Kauai, Oahu, Molokai, Lanai and Maui until late tonight.

 

[Update 2:45 p.m.]

The National Weather Service has issued a Flash Flood Warning for the island of Oahu until 5:45 p.m.

Forecasters said at 2:34 p.m., radar showed heavy showers with rain rates in excess of two inches per hour moving across Windward Oahu and the Koolau Range. The Waiahole Stream has also risen over 11 feet, indicating the flooding is likely.

Other locations in the warning include but are not limited to Punaluu, Waiahole, Waikane, Laie, Hauula and Kaneohe.

A flash flood warning means that flooding is imminent or already occurring. Move to higher ground now.

The warning replaces the flood advisory that was in effect earlier for the island of Oahu.


[Update 2:15 p.m.]

The National Weather Service in Honolulu has issued a Flood Advisory for the island of Oahu in Honolulu County.

  • Until 5 p.m.
  • At 1:56 p.m., scattered heavy rain showers were located across Oahu, and were focused across the Koolau and Waianae ranges. Rain gages reported rainfall rates in excess of one in per hour. Showers extended far offshore to the northeast of the island, and were moving to the southwest at 15 mph.
  • This advisory includes the entire island of Oahu. 
  • A Flash Flood Watch is also in effect for Kauai Oahu Molokai Lanai and Maui through tonight. This advisory may need to be extended beyond 5:00 p.m. if heavy rain persists.

[Update 12:30 p.m.]

The National Weather Service has issued a Flash Flood Warning for Kauai until 3:30 p.m.

  • At 12:18 p.m., a Gage on the Hanalei River indicated a rapid rise in the water level that will lead to flooding at the Hanalei bridge across Kuhio Highway. Heavy showers continue to fall over the Interior as well.

  • Other locations in the warning include but are not limited to Haena, Wainiha, Na Pali State Park, Moloaa, Kalalau Valley. Princeville, Kilauea and Hanalei. This Flash Flood Warning replaces the Flood Advisory that was in effect for the island of Kauai in Kauai County. This warning may need to be extended beyond 3:30 p.m. if Flash Flooding persists.

Follow the storm with our Interactive Radar.

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