Flood Advisory issued August 15 at 8:18AM HST until August 15 at 11:15AM HST by NWS Honolulu HI
发布日期：2026-08-15T18:18+00:00
* WHAT...Flooding caused by excessive rainfall is expected. * WHERE...The island of Hawaii in Hawaii County... * WHEN...Until 1115 AM HST. * IMPACTS...Minor flooding on roads, poor drainage areas, and in streams. * ADDITIONAL DETAILS... - At 815 AM HST, radar and rain gauges continued to indicate steady moderate showers falling at rates of 0.5 to 1.5 inch per hour over windward Big Island. Some rain bands could have locally higher rates, especially in the Kau and Puna Districts. Water levels in area streams are slowly rising. The showers are expected to increase in intensity as the morning progresses. Minor flooding is ongoing or expected to begin shortly in the advisory area. - Some locations that will experience flooding include... Hilo, Hawaiian Paradise Park, Kapaau, Honokaa, Volcano, Glenwood, Mountain View, Hawaii Volcanoes National Park, Wood Valley, Hawaiian Acres and Keaau.
Hurricane Warning issued August 15 at 4:58AM HST by NWS Honolulu HI
发布日期：2026-08-15T14:58+00:00
* LOCATIONS AFFECTED - Mauna Kea Summit - Mauna Loa Summit * WIND - LATEST LOCAL FORECAST: Equivalent Cat 1 Hurricane force wind - Peak Wind Forecast: 55-75 mph with gusts to 115 mph - Window for Tropical Storm force winds: until early Sunday morning - Window for Hurricane force winds: until this evening - THREAT TO LIFE AND PROPERTY THAT INCLUDES TYPICAL FORECAST UNCERTAINTY IN TRACK, SIZE AND INTENSITY: Potential for wind 74 to 110 mph - The wind threat has increased from the previous assessment. - PLAN: Plan for life-threatening wind of equivalent CAT 1 or 2 hurricane force. - PREPARE: Last minute efforts should solely focus on protecting life. The area remains subject to considerable wind damage. - ACT: Now is the time to shelter from life-threatening wind. - POTENTIAL IMPACTS: Unfolding - Potential impacts from the main wind event are unfolding. * FLOODING RAIN - LATEST LOCAL FORECAST: Flood Watch is in effect - Peak Rainfall Amounts: Additional 6-10 inches, with locally higher amounts - THREAT TO LIFE AND PROPERTY THAT INCLUDES TYPICAL FORECAST UNCERTAINTY IN TRACK, SIZE AND INTENSITY: Potential for major flooding rain - The flooding rain threat has remained nearly steady from the previous assessment. - PLAN: Emergency plans should include the potential for major flooding from heavy rain. Evacuations and rescues are likely. - PREPARE: Strongly consider protective actions, especially if you are in an area vulnerable to flooding. - ACT: Heed any flood watches and warnings. Failure to take action will likely result in serious injury or loss of life. - POTENTIAL IMPACTS: Extensive - Major rainfall flooding may prompt many evacuations and rescues. - Rivers and tributaries may rapidly overflow their banks in multiple places. Small streams, creeks, canals, arroyos, and ditches may become dangerous rivers. In mountain areas, destructive runoff may run quickly down valleys while increasing susceptibility to rockslides and mudslides. Flood control systems and barriers may become stressed. - Flood waters can enter many structures within multiple communities, some structures becoming uninhabitable or washed away. Many places where flood waters may cover escape routes. Streets and parking lots become rivers of moving water with underpasses submerged. Driving conditions become dangerous. Many road and bridge closures with some weakened or washed out. * TORNADO - LATEST LOCAL FORECAST: - Situation is somewhat favorable for tornadoes - THREAT TO LIFE AND PROPERTY THAT INCLUDES TYPICAL FORECAST UNCERTAINTY IN TRACK, SIZE AND INTENSITY: Potential for a few tornadoes - The tornado threat has remained nearly steady from the previous assessment. - PLAN: Emergency plans should continue to include possible tornadoes. - PREPARE: Stay within your shelter keeping informed of the latest tornado situation. - ACT: Move quickly to the safest place within your shelter if a tornado warning is issued. - POTENTIAL IMPACTS: Limited - The occurrence of isolated tornadoes can hinder the execution of emergency plans during tropical events. - A few places may experience tornado damage, along with power and communications disruptions. - Locations could realize roofs peeled off buildings, chimneys toppled, mobile homes pushed off foundations or overturned, large tree tops and branches snapped off, shallow-rooted trees knocked over, moving vehicles blown off roads, and small boats pulled from moorings. * FOR MORE INFORMATION: - https://www.weather.gov/hfo
Tropical Storm Warning issued August 15 at 4:58AM HST by NWS Honolulu HI
发布日期：2026-08-15T14:58+00:00
* WIND - LATEST LOCAL FORECAST: Equivalent Tropical Storm force wind - Peak Wind Forecast: 35-45 mph with gusts to 85 mph - Window for Tropical Storm force winds: until early Sunday morning - THREAT TO LIFE AND PROPERTY THAT INCLUDES TYPICAL FORECAST UNCERTAINTY IN TRACK, SIZE AND INTENSITY: Potential for wind 58 to 73 mph - The wind threat has remained nearly steady from the previous assessment. - PLAN: Plan for dangerous wind of equivalent strong tropical storm force. - PREPARE: Last minute efforts to protect life and property should now be complete. The area remains subject to significant wind damage. - ACT: Now is the time to shelter from dangerous wind. - POTENTIAL IMPACTS: Unfolding - Potential impacts from the main wind event are unfolding. * STORM SURGE - LATEST LOCAL FORECAST: Localized storm surge possible - Peak Storm Surge Inundation: The potential for up to 2 feet above ground somewhere within surge prone areas - Window of concern: through early Monday morning - THREAT TO LIFE AND PROPERTY THAT INCLUDES TYPICAL FORECAST UNCERTAINTY IN TRACK, SIZE AND INTENSITY: Potential for storm surge flooding greater than 1 foot above ground - The storm surge threat has remained nearly steady from the previous assessment. - PLAN: Shelter against storm surge flooding greater than 1 foot above ground. - PREPARE: All flood preparations should be complete. Expect flooding of low-lying roads and property. - ACT: Stay away from storm surge prone areas. Continue to follow the instructions of local officials. - POTENTIAL IMPACTS: Unfolding - Potential impacts from the main surge event are unfolding. * FLOODING RAIN - LATEST LOCAL FORECAST: Flood Watch is in effect - Peak Rainfall Amounts: Additional 3-6 inches, with locally higher amounts - THREAT TO LIFE AND PROPERTY THAT INCLUDES TYPICAL FORECAST UNCERTAINTY IN TRACK, SIZE AND INTENSITY: Potential for major flooding rain - The flooding rain threat has remained nearly steady from the previous assessment. - PLAN: Emergency plans should include the potential for major flooding from heavy rain. Evacuations and rescues are likely. - PREPARE: Strongly consider protective actions, especially if you are in an area vulnerable to flooding. - ACT: Heed any flood watches and warnings. Failure to take action will likely result in serious injury or loss of life. - POTENTIAL IMPACTS: Extensive - Major rainfall flooding may prompt many evacuations and rescues. - Rivers and tributaries may rapidly overflow their banks in multiple places. Small streams, creeks, canals, arroyos, and ditches may become dangerous rivers. In mountain areas, destructive runoff may run quickly down valleys while increasing susceptibility to rockslides and mudslides. Flood control systems and barriers may become stressed. - Flood waters can enter many structures within multiple communities, some structures becoming uninhabitable or washed away. Many places where flood waters may cover escape routes. Streets and parking lots become rivers of moving water with underpasses submerged. Driving conditions become dangerous. Many road and bridge closures with some weakened or washed out. * TORNADO - LATEST LOCAL FORECAST: - Situation is unfavorable for tornadoes - THREAT TO LIFE AND PROPERTY THAT INCLUDES TYPICAL FORECAST UNCERTAINTY IN TRACK, SIZE AND INTENSITY: Tornadoes not expected - The tornado threat has remained nearly steady from the previous assessment. - PLAN: Tornadoes are not expected. Showers and thunderstorms with gusty winds may still occur. - PREPARE: Little to no preparations needed to protect against tornadoes at this time. Keep informed of the latest tornado situation. - ACT: Listen for changes in the forecast. - POTENTIAL IMPACTS: Little to None - Little to no potential impacts from tornadoes.
Flood Watch issued August 15 at 3:55AM HST until August 16 at 6:00AM HST by NWS Honolulu HI
发布日期：2026-08-15T13:55+00:00
Tropical Cyclone Lala will bring heavy rain to the Big Island and Maui County through late tonight and Oahu, Kauai, and Niihau this evening through late Sunday night. * WHAT...Flash flooding caused by excessive rainfall will be possible. * WHERE...The Big Island and Maui. * WHEN...Through late tonight. * 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... - Tropical Cyclone Lala will bring heavy rain to the Big Island and Maui through late tonight. At this time, amounts of 10 to 20 inches are possible over windward areas of Big Island, with 8 to 12 inches over windward areas of Maui. Higher localized amounts are possible.
High Surf Warning issued August 14 at 2:18PM HST until August 16 at 6:00AM HST by NWS Honolulu HI
发布日期：2026-08-15T00:18+00:00
...HIGH SURF WARNING FOR EAST FACING SHORES OF THE BIG ISLAND MAUI REMAINS IN EFFECT TONIGHT THROUGH SATURDAY NIGHT... ...HIGH SURF WARNING FOR EAST FACING SHORES OF MOLOKAI AND OAHU IN EFFECT SATURDAY MORNING THROUGH SATURDAY NIGHT... ...HIGH SURF ADVISORY FOR EAST FACING SHORES OF KAUAI IN EFFECT SATURDAY MORNING THROUGH SATURDAY NIGHT... .Medium-period swell will quickly build tonight through Saturday as Tropical Storm Lala approaches from the east. Surf peaks on Saturday several feet above the warning threshold for the Big Island and rapidly decreases Saturday night. For Maui and Molokai, surf peaks late Saturday into Saturday night near the warning threshold and rapidly diminishes by Sunday. For Oahu and Kauai, surf peaks Saturday night and diminishes Sunday morning. * WHAT...For the Big Island, dangerously large surf increasing from 8 to 12 feet tonight to 15 to 20 feet on Saturday. For Maui, dangerously large surf increasing from 7 to 10 feet tonight to 10 to 15 feet on Saturday. * WHERE...East facing shores of Maui and Big Island. * WHEN...From 6 PM this evening to 6 AM HST Sunday. * IMPACTS...High. Expect very strong breaking waves and powerful currents. Waves breaking in channel entrances may make navigating the channels dangerous.
