Weather Alerts-

Flash Flood Warning

Until Sat 6:00 am HST

1 of 5

Action Recommended

Avoid the subject event as per the instructions

Issued By

Honolulu - HI, US, National Weather Service

Affected Area

Honolulu County

Description

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 6 AM HST EARLY THIS MORNING FOR THE ISLAND OF OAHU IN HONOLULU COUNTY... At 352 AM HST, radar indicated heavy rain near Punaluu. Rain was falling at a rate of 1 to 2.5 inches per hour. Flash flooding is ongoing or expected to begin shortly. HAZARD...Flash flooding caused by heavy rain. SOURCE...Radar. IMPACT...Flooding in drainages, streams, rivers, roads, properties, and other low-lying areas. Public road closures possible in some areas. Landslides are possible in steep terrain. Some locations that will experience flash flooding include... Honolulu, Waipio, Moanalua, Halawa, Salt Lake, Aiea, Kalihi, Pearl City, Ahuimanu, Iroquois Point, Manoa, Kahaluu, Kaneohe, Waiahole, Waipahu, Waikele, Palolo, Maunawili, Waikane and Ewa Beach. PRECAUTIONARY/PREPAREDNESS ACTIONS... Stay away from streams, rivers, drainage ditches, and culverts, even if they are currently dry. Do not cross fast flowing or rising water in your vehicle, or on foot. Turn around, don't drown. Be especially cautious at night when it is harder to recognize the dangers of flooding. Excessive runoff from heavy rainfall will cause flooding of drainage ditches and streams, streets, highways, properties, and other low lying spots. FLASH FLOOD...RADAR INDICATED

Flash Flood Warning

Until Sat 5:00 am HST

2 of 5

Action Recommended

Avoid the subject event as per the instructions

Issued By

Honolulu - HI, US, National Weather Service

Affected Area

Honolulu County

Description

The National Weather Service in Honolulu has extended the Flash Flood Warning for... The island of Oahu in Honolulu County Until 500 AM HST. At 156 AM HST, emergency management reported numerous closed roads due to flooding. While the latest radar shows a significant decrease in shower coverage and intensity, return showers are expected into the early morning hours. The Wahiawa Reservoir remains elevated and will continue to be a concern due to additional heavy rain expected over the next few days. HAZARD...Flash flooding caused by heavy rain. SOURCE...Emergency management. IMPACT...Flooding in drainages, streams, rivers, roads, properties, and other low-lying areas. Public road closures possible in some areas. Landslides are possible in steep terrain. Some locations that will experience flash flooding include... Wahiawa, Schofield Barracks, Wheeler Field, Haleiwa, Waialua, Mililani, Hauula, Laie, Waianae, Punaluu, Kahuku, Nanakuli, Waikane, Kaaawa, Helemano Housing, Whitmore Village, Waimea Valley, Waimea Bay, Mokuleia and Pupukea. PRECAUTIONARY/PREPAREDNESS ACTIONS... Stay away from streams, rivers, drainage ditches, and culverts, even if they are currently dry. Do not cross fast flowing or rising water in your vehicle, or on foot. Turn around, don't drown. Be especially cautious at night when it is harder to recognize the dangers of flooding. This warning may need to be extended beyond 500 AM HST if flooding; persists.; FLASH FLOOD...OBSERVED

Flash Flood Warning

Until Sat 1:15 pm HST

3 of 5

Action Recommended

Avoid the subject event as per the instructions

Issued By

Honolulu - HI, US, National Weather Service

Affected Area

Honolulu County

Description

The National Weather Service in Honolulu has extended the Flash Flood Warning for... A Dam Failure on the Kaukonahua Stream below Wahiawa Dam on... The island of Oahu in Honolulu County Until 115 PM HST Saturday. At 105 PM HST, emergency management reported the imminent failure of Wahiawa Dam. HAZARD...Flash flooding from the imminent failure of Wahiawa Dam. SOURCE...Emergency management. IMPACT...Flooding of areas downstream from the Wahiawa Dam along the Kaukonahua Stream. The nearest downstream area from the dam is Waialua, Haleiwa, and Kaukonahua Stream. This includes the following streams and drainages... Poamoho Stm- Dole Fields, Poamoho Stm- Kaukonahua Hwy, Kaukonahua Stm- Schofield, Mohiakea Gul, Waialua Town, Kaukonahua Stm- N Fork Wahiawa, Kaukonahua Stm- Wahiawa, Kiikii Stm- Waialua, Helemano/Opaeula Stm- Haleiwa, Kaukonahua Stm- Waialua and Anahulu R- Haleiwa. Flooding is occurring along the Kaukonahua Stream. This warning may need to be extended beyond 115 PM HST Saturday if flooding persists. FLASH FLOOD...OBSERVED; DAM FAILURE...IMMINENT

Special Marine Warning

From Sat 3:42 am until 5:45 am HST

4 of 5

Action Recommended

Avoid the subject event as per the instructions

Issued By

Honolulu - HI, US, National Weather Service

Affected Area

Oahu Leeward Waters

Description

The National Weather Service in Honolulu has issued a Special Marine Warning for... Kaiwi Channel... Kauai Channel... Maui County Leeward Waters... Maui County Windward Waters... Oahu Leeward Waters... Oahu Windward Waters... Until 545 AM HST. At 342 AM HST, a severe thunderstorm capable of producing waterspouts was located 8 nm southwest of Ala Wai Harbor, or 8 nm southwest of Waikiki, moving northeast at 40 knots. HAZARD...Waterspouts, wind gusts in excess of 50 knots, and small hail. SOURCE...Radar. IMPACT...Waterspouts can easily overturn boats and create locally hazardous seas. Boats could suffer significant structural damage in high winds. Small craft could capsize in suddenly higher waves. Locations impacted include... Mokulua Islands, Ilio Point, Heeia Kea Boat Harbor, FAD Buoy J, FAD Buoy CO, FAD Buoy II, FAD Buoy MM, and Pearl Harbor. PRECAUTIONARY/PREPAREDNESS ACTIONS... Prepare for gusty winds, steep and fast-building seas, and blinding downpours. Stay low or go below, and make sure all on board are wearing life jackets. WATERSPOUT...POSSIBLE; HAIL...<.75IN; WIND...50KTS

Flood Watch

Until Sun 6:00 pm HST

5 of 5

Action Recommended

Avoid the subject event as per the instructions

Issued By

Honolulu - HI, US, National Weather Service

Affected Area

The island of Oahu, Molokai, Lanai, Kahoolawe, Maui, and the Big Island

Description

WHAT...Flash flooding caused by excessive rainfall is possible. WHERE...The island of Oahu, Molokai, Lanai, Kahoolawe, Maui, and the Big Island. WHEN...Through Sunday afternoon. IMPACTS...Significant flooding may occur due to the overflow of streams and drainages. Roads in several areas may be closed, along with property damage in urban or low lying spots due to runoff. Landslides may also occur in areas with steep terrain. ADDITIONAL DETAILS... - A kona low developing west of the islands will draw abundant moisture northward as it strengthens and eventually departs to north early next week. Several rounds of moderate to heavy rainfall are anticipated. The heaviest rain is expected to last through tonight, except for the Big Island where the heaviest rain is expected on Sunday. PRECAUTIONARY/PREPAREDNESS ACTIONS... You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued.

More Information

...FLOOD WATCH IN EFFECT THROUGH SUNDAY AFTERNOON FOR ALL ISLANDS IN THE STATE OF HAWAII...

Radar

Now5:25 am5:55 am6:25 am6:55 am7:25 am7:55 am8:25 am8:55 am9:25 am9:55 am10:25 am10:55 am

Lonely Planet

7 Top Hikes In Kyoto For Scenic Views And Cultural Encounters

10 Of The Best Places For Stargazing In The USA

16 Of The Best Things To Do In London

The Best Time To Visit Europe