83°Frequent Showers And Thunderstorms94% rainWeather status
Tropical Storm Warning
Tropical Storm Warning issued September 7 at 4:51PM HST by NWS Honolulu HI Expires Tue, 1:00 AM HST.
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83°Frequent Showers And Thunderstorms94% rain
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78°Frequent Rain Showers100% rainNext 24 hours
Rain Timeline
Most likely around 5 PM, 6 PM, 7 PM, 8 PM. Expected type: Thunderstorms / Rain.
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Official NWS outlook
7-Day Forecast
Today
! NWS86°78°
Frequent Showers And Thunderstorms
- Precipitation
- 100%
- Wind
- E 18 mph
- Sunrise
- 6:17 AM
- Sunset
- 6:43 PM
Tue
87°78°
Frequent Rain Showers
- Precipitation
- 78%
- Wind
- S 9 to 18 mph
- Sunrise
- 6:18 AM
- Sunset
- 6:42 PM
Wed
88°77°
Chance Rain Showers
- Precipitation
- 57%
- Wind
- ESE 6 mph
- Sunrise
- 6:18 AM
- Sunset
- 6:41 PM
Thu
86°76°
Scattered Rain Showers
- Precipitation
- 53%
- Wind
- E 6 to 9 mph
- Sunrise
- 6:18 AM
- Sunset
- 6:40 PM
Fri
86°75°
Chance Rain Showers
- Precipitation
- 55%
- Wind
- ENE 13 mph
- Sunrise
- 6:18 AM
- Sunset
- 6:40 PM
Sat
86°76°
Scattered Rain Showers
- Precipitation
- 29%
- Wind
- ENE 10 mph
- Sunrise
- 6:19 AM
- Sunset
- 6:39 PM
Sun
86°76°
Scattered Rain Showers
- Precipitation
- 48%
- Wind
- ENE 9 to 13 mph
- Sunrise
- 6:19 AM
- Sunset
- 6:38 PM
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Real Feel90°F
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WindE18 mph
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Wind gusts34mph
Rain now94%next hour
Humidity74%current
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Wind gust34 mph
Pressure—
Visibility5.0 mi
Peak rain chance100%
Dew point74°F
Active alerts6
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Severe · Immediate
Tropical Storm Warning
Applies to: Honolulu MetroIssued by: NWS Honolulu HITropical Storm Warning issued September 7 at 4:51PM HST by NWS Honolulu HIAlert details
* LOCATIONS AFFECTED - Salt Lake - Honolulu - Kaimuki * WIND - LATEST LOCAL FORECAST: Below tropical storm force wind - Peak Wind Forecast: 20-30 mph with gusts to 40 mph - THREAT TO LIFE AND PROPERTY THAT INCLUDES TYPICAL FORECAST UNCERTAINTY IN TRACK, SIZE AND INTENSITY: Potential for wind 39 to 57 mph - The wind threat has remained nearly steady from the previous assessment. - PLAN: Plan for hazardous wind of equivalent tropical storm force. - PREPARE: Efforts to protect property should now be underway. Prepare for limited wind damage. - ACT: Act now to complete preparations before the wind becomes hazardous. - POTENTIAL IMPACTS: Limited - Damage to porches, awnings, carports, sheds, and unanchored mobile homes. Unsecured lightweight objects blown about. - Many large tree limbs broken off. A few trees snapped or uprooted, but with greater numbers in places where trees are shallow rooted. Some fences and roadway signs blown over. - A few roads impassable from debris, particularly within urban or heavily wooded places. Hazardous driving conditions on bridges and other elevated roadways. - Scattered power and communications outages. * STORM SURGE - No storm surge inundation forecast - THREAT TO LIFE AND PROPERTY THAT INCLUDES TYPICAL FORECAST UNCERTAINTY IN TRACK, SIZE AND INTENSITY: Little to no storm surge flooding - The storm surge threat has remained nearly steady from the previous assessment. - PLAN: There is little to no threat of storm surge flooding. Rough surf, coastal erosion, and life-threatening rip currents are possible. - PREPARE: Little to no preparations for storm surge flooding are needed. - ACT: Follow the instructions of local officials. Monitor forecasts. - POTENTIAL IMPACTS: Little to None - Little to no potential impacts from storm surge flooding. * 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 moderate flooding rain - The flooding rain threat has remained nearly steady from the previous assessment. - PLAN: Emergency plans should include the potential for moderate flooding from heavy rain. Evacuations and rescues are possible. - PREPARE: Consider protective actions if you are in an area vulnerable to flooding. - ACT: Heed any flood watches and warnings. Failure to take action may result in serious injury or loss of life. - POTENTIAL IMPACTS: Significant - Moderate rainfall flooding may prompt several evacuations and rescues. - Rivers and tributaries may quickly become swollen with swifter currents and overspill their banks in a few places, especially in usually vulnerable spots. Small streams, creeks, canals, arroyos, and ditches overflow. - Flood waters can enter some structures or weaken foundations. Several places may experience expanded areas of rapid inundation at underpasses, low-lying spots, and poor drainage areas. Some streets and parking lots take on moving water as storm drains and retention ponds overflow. Driving conditions become hazardous. Some road and bridge closures. * 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 include the potential for a few tornadoes. - PREPARE: If your shelter is particularly vulnerable to tornadoes, prepare to relocate to safe shelter before hazardous weather arrives. - ACT: If a tornado warning is issued, be ready to shelter quickly. - 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/hfoModerate · Expected
High Surf Warning
Applies to: Waianae Coast; Kahoolawe; Maui Leeward West; Kona; Kohala; East Honolulu; Honolulu Metro; Ewa Plain; Molokai Southeast; Molokai West; Molokai Leeward South; Lanai Leeward; Lanai South; Maui Central Valley South; Kipahulu; South Maui/Upcountry; South Haleakala; Big Island South; Big Island SoutheastIssued by: NWS Honolulu HIHigh Surf Warning issued September 7 at 3:51PM HST until September 8 at 6:00PM HST by NWS Honolulu HIAlert details
...HIGH SURF WARNING FOR SOUTH FACING SHORES OF ALL ISLANDS THROUGH TUESDAY... ...HIGH SURF WARNING FOR WEST FACING SHORES OF BIG ISLAND THROUGH TUESDAY... ...HIGH SURF ADVISORY FOR EAST FACING SHORES OF ALL ISLANDS THROUGH TUESDAY... .South-southwest swell from Hurricane Lowell will continue to build rapidly, and peak tonight as it shifts out of the southwest. As a result, warning level surf along south facing shores will continue to rise, peaking overnight. Due to the track of Lowell west of the main islands, a sharp gradient in swell is expected from west to east. This will bring damaging surf to portions of Kauai County and likely Oahu, with the potential for significant damage to coastal properties and infrastructure, particularly to those areas along the coasts of Kauai and Oahu exposed to the southerly swell. The hurricane swell energy is expected to rapidly decline on Tuesday as Lowell moves away from the islands. A large, medium-period east swell from former Tropical Storm Karina will combine with increasing east to southeast wind wave generated by Hurricane Lowell to keep advisory level surf along east facing shores through Tuesday. * WHAT...For south facing shores, surf will continue to rapidly build to 15 to 25 feet for Oahu, 12 to 20 feet for Maui County, and 12 to 16 feet for the Big Island. For west facing shores of the Big Island, surf building to 12 to 16 feet. Surf is expected to peak overnight. * WHERE...South facing shores of Kahoolawe, Lanai, Maui, Molokai, Oahu and the Big Island. West facing shores of the Big Island. * WHEN...Until 6 PM HST Tuesday. * IMPACTS...Very High...Expect ocean water surging and sweeping across beaches, coastal benches, and lava flows creating the potential for impacts to coastal properties and infrastructure, including roadways. Powerful longshore and rip currents will be present at most beaches. Large breaking waves and strong currents may impact harbor entrances and channels causing challenging boat handling.Safety instructions
Stay away from the shoreline along the affected coasts. Be prepared for road closures. Postpone entering or leaving channels affected by the high surf until the surf subsides.Severe · Future
Flood Watch
Applies to: Waianae Coast; Oahu North Shore; Olomana; Central Oahu; Waianae Mountains; Lanai Mauka; Kahoolawe; Maui Windward West; Maui Leeward West; Haleakala Summit; Kona; Kohala; Big Island Interior; Big Island Summit; East Honolulu; Honolulu Metro; Ewa Plain; Koolau Windward; Koolau Leeward; Molokai Windward; Molokai Southeast; Molokai North; Molokai West; Molokai Leeward South; Lanai Windward; Lanai Leeward; Lanai South; Maui Central Valley North; Maui Central Valley South; Windward Haleakala; Kipahulu; South Maui/Upcountry; South Haleakala; Big Island South; Big Island Southeast; Big Island East; Big Island NorthIssued by: NWS Honolulu HIFlood Watch issued September 7 at 3:23PM HST until September 8 at 6:00PM HST by NWS Honolulu HIAlert details
Moisture along the eastern flank of Hurricane Lowell will bring periods of heavy rain to the main Hawaiian Islands through Tuesday. * WHAT...Flash flooding caused by excessive rainfall continues to be possible. * WHERE...Oahu, Maui County, Big Island * WHEN...Through Tuesday afternoon. * IMPACTS...Flood prone roads and other low lying areas may be closed due to elevated runoff and overflowing streams. Urban areas may receive more significant flooding and property damage due to rapid runoff. * ADDITIONAL DETAILS... - Moisture along the eastern flank of Hurricane Lowell will bring periods of heavy rain to the main Hawaiian islands through Tuesday. - Maui, Lanai, Molokai, Oahu, The Big Island and Kahoolawe.Safety instructions
You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued.Moderate · Expected
Tropical Cyclone Local Statement
Applies to: Niihau; Kauai Southwest; Kauai Mountains; Waianae Coast; Oahu North Shore; Olomana; Central Oahu; Waianae Mountains; Lanai Mauka; Kahoolawe; Maui Windward West; Maui Leeward West; Haleakala Summit; Kona; Kohala; Big Island Interior; Big Island Summit; Kauai North; Kauai East; Kauai South; East Honolulu; Honolulu Metro; Ewa Plain; Koolau Windward; Koolau Leeward; Molokai Windward; Molokai Southeast; Molokai North; Molokai West; Molokai Leeward South; Lanai Windward; Lanai Leeward; Lanai South; Maui Central Valley North; Maui Central Valley South; Windward Haleakala; Kipahulu; South Maui/Upcountry; South Haleakala; Big Island South; Big Island Southeast; Big Island East; Big Island NorthIssued by: NWS Honolulu HITropical Cyclone Local Statement issued September 7 at 5:12PM HST by NWS Honolulu HIAlert details
HLSHFO This product covers the Hawaiian islands **DANGEROUS CONDITIONS EXPECTED FOR NIIHAU, KAUAI, AND OAHU, WITH FLASH FLOODING DAMAGING WAVES AND HIGH WINDS EXPECTED FROM LOWELL** NEW INFORMATION --------------- * CHANGES TO WATCHES AND WARNINGS: - None * CURRENT WATCHES AND WARNINGS: - A Hurricane Warning is in effect for Kauai East, Kauai Mountains, Kauai North, Kauai South, Kauai Southwest, and Niihau - A Tropical Storm Warning is in effect for Central Oahu, East Honolulu, Ewa Plain, Honolulu Metro, Koolau Leeward, Koolau Windward, Oahu North Shore, Olomana, Waianae Coast, and Waianae Mountains * STORM INFORMATION: - About 170 miles southwest of Lihue or about 230 miles west-southwest of Honolulu - 20.3N 161.3W - Storm Intensity 110 mph - Movement North-northeast or 25 degrees at 18 mph SITUATION OVERVIEW ------------------ Hurricane Lowell continues to move toward the north-northeast and approach the state. As the center of Lowell passes west of Niihau tonight, expect damaging winds, heavy flooding rainfall, and extremely dangerous and damaging surf to occur over portions of the Hawaiian Islands and possibly persist into Tuesday morning. A Hurricane Warning remains in effect for Kauai and Niihau, and a Tropical Storm Warning is in effect for Oahu. Preparations should be complete on Kauai County and should be rushed to completion on Oahu. Damaging tropical storm force winds are now occurring on Kauai and Niihau and may spread to Oahu during the evening. Several stations on southern Kauai, including Lihue Airport, have already been measuring sustained winds of 30 to 40 mph. Hurricane conditions are expected over portions of Kauai County as early as this evening, with the highest probability of hurricane force winds occurring on Niihau this evening. It is important to note that winds can be accelerated over and downwind of terrain, leading to areas of stronger wind gusts. As winds shift from east to southeast this afternoon to south overnight, areas affected by downslope wind gusts will likely change. The threat of heavy rain will increase considerably tonight. Heavy downpours could lead to flash flooding and mudslides, especially in steep terrain, and rainbands could become persistent and anchored in some areas, exacerbating the flash flood threat. The risk of flash flooding is greatest for Kauai and Niihau, where many stations have measured 2 to 5 inches of rain today. The flood threat also exists for all other islands due to deep moisture surrounding Lowell. Over 20 inches of rain is possible over portions of Kauai, mainly over the interior mountains, and up 12 inches remains possible over southeast Big Island. An extremely large south to southwest swell generated by Lowell will continue to rapidly build through the evening and peak tonight. A High Surf Warning is in effect for south-facing shores of all islands and for west-facing shores of the Big Island. Dangerously large and damaging surf and coastal inundation are expected along the immediate coast of exposed south- and west-facing shores, particularly on Kauai and Niihau and possibly Oahu. The highest surf may reach 20 to 30 feet on Kauai and Niihau tonight, then rapidly diminish on Tuesday. Extra large surf, on top of 1 to 4 feet of storm surge, will generate major wave run-up and coastal inundation along exposed low lying areas of south- and west-facing shores, particularly for Kauai and Niihau and possibly for Oahu. Conditions will be conducive for fast-moving, short-lived waterspouts and tornadoes in the rainbands associated with Lowell, mainly near Kauai and Niihau. This threat will continue through tonight, then diminish quickly Tuesday morning. POTENTIAL IMPACTS ----------------- * WIND: Potential impacts from the main wind event are now unfolding across Kauai and Niihau. Remain well sheltered from life-threatening wind impacts. If realized, these impacts include: - Structural damage to sturdy buildings, some with complete roof and wall failures. Complete destruction of mobile homes. Damage greatly accentuated by large airborne projectiles. Locations may be uninhabitable for weeks or months. - Numerous large trees snapped or uprooted along with fences and roadway signs blown over. - Many roads impassable from large debris, and more within urban or heavily wooded places. Many bridges, causeways, and access routes impassable. - Widespread power and communications outages. Potential impacts from the main wind event will develop across Oahu this evening. Remain well sheltered from wind having limited to extensive impacts. Elsewhere across the Hawaiian islands, little to no impact is anticipated. * FLOODING RAIN: Potential impacts from the flooding rain are unfolding across Kauai and Niihau. Remain well guarded against life-threatening flood waters having extensive impacts. If realized, these impacts include: - 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. Potential impacts from the flooding rain are unfolding across the rest of the State of Hawaii. Remain well guarded against dangerous flood waters having significant impacts. * SURGE: Potential impacts from the main surge and damaging surf event are now unfolding across Kauai and Niihau. Remain well away from life-threatening surge and extremely large surf having significant impacts. If realized, these impacts include: - Areas of inundation with storm surge flooding accentuated by waves. Damage to several buildings, mainly near the coast. - Sections of near-shore escape routes and secondary roads become weakened or washed out, especially in usually vulnerable low spots. - Major beach erosion with heavy surf overtopping nearby roadways. - Moderate damage to marinas, docks, and piers. Several small craft broken away from moorings, especially in unprotected anchorages. Elsewhere across the Hawaiian islands, very large surf may produce coastal inundation and some impacts to shoreline infrastructure. * TORNADOES: Potential impacts from tornadoes are unfolding across Kauai and Niihau. Remain well braced against a dangerous tornado event having possible significant impacts. If realized, these impacts include: - The occurrence of scattered tornadoes can hinder the execution of emergency plans during tropical events. - Several places may experience tornado damage with a few spots of considerable damage, power loss, and communications failures. - Locations could realize roofs torn off frame houses, mobile homes demolished, boxcars overturned, large trees snapped or uprooted, vehicles tumbled, and small boats tossed about. Dangerous projectiles can add to the toll. Prepare for a tornado event having possible limited impacts across the rest of the State of Hawaii. PRECAUTIONARY/PREPAREDNESS ACTIONS ---------------------------------- * EVACUATIONS: Follow the advice of local officials * OTHER PREPAREDNESS INFORMATION: Now is the time to stay inside and away from windows. Listen for updates and be ready in case you lose electrical power. Keep a battery-powered radio, charged cell phone and flashlight handy. During the peak of the storm be ready to move quickly. Keep your shoes on and rain gear handy. Boots and athletic shoes offer the best foot protection if you become unexpectedly exposed to the weather. Failure to adequately shelter may result in serious injury or loss of life. Always heed the advice of local officials and comply with any orders that are issued. Remember, during the storm 9 1 1 Emergency Services may not be able to immediately respond if conditions are unsafe. This should be a big factor in your decision making. If you are a visitor, be sure to know the name of the city or town in which you are staying and the name of the county or parish in which it resides. Listen for these locations in local news updates. Pay attention for instructions from local authorities. Keep your cell phone charged and in power-saving mode. If you lose power, use it sparingly and mainly for personal emergencies and check-ins. If you are prone to flooding be prepared for the possibility of a quick and dramatic rise in water levels. If a tornado warning is issued for your area, quickly move to the safest place within your shelter. Protect your head and body. * ADDITIONAL SOURCES OF INFORMATION: - For information on appropriate preparations see ready.gov - For information on creating an emergency plan see getagameplan.org - For additional disaster preparedness information see redcross.org NEXT UPDATE ----------- The next local statement will be issued by the National Weather Service in Honolulu HI around 1100 PM HST, or sooner if conditions warrant.Moderate · Expected
Tropical Cyclone Local Statement
Applies to: Niihau; Kauai Southwest; Kauai Mountains; Waianae Coast; Oahu North Shore; Olomana; Central Oahu; Waianae Mountains; Lanai Mauka; Kahoolawe; Maui Windward West; Maui Leeward West; Haleakala Summit; Kona; Kohala; Big Island Interior; Big Island Summit; Kauai North; Kauai East; Kauai South; East Honolulu; Honolulu Metro; Ewa Plain; Koolau Windward; Koolau Leeward; Molokai Windward; Molokai Southeast; Molokai North; Molokai West; Molokai Leeward South; Lanai Windward; Lanai Leeward; Lanai South; Maui Central Valley North; Maui Central Valley South; Windward Haleakala; Kipahulu; South Maui/Upcountry; South Haleakala; Big Island South; Big Island Southeast; Big Island East; Big Island NorthIssued by: NWS Honolulu HITropical Cyclone Local Statement issued September 7 at 2:04PM HST by NWS Honolulu HIAlert details
HLSHFO This product covers the Hawaiian islands **LOWELL MOVING CLOSER TO HAWAIIAN ISLANDS AND EXPECTED TO PRODUCE FLASH FLOODING DAMAGING WAVES AND HIGH WINDS** NEW INFORMATION --------------- * CHANGES TO WATCHES AND WARNINGS: - None * CURRENT WATCHES AND WARNINGS: - A Hurricane Warning is in effect for Kauai East, Kauai Mountains, Kauai North, Kauai South, Kauai Southwest, and Niihau - A Tropical Storm Warning is in effect for Central Oahu, East Honolulu, Ewa Plain, Honolulu Metro, Koolau Leeward, Koolau Windward, Oahu North Shore, Olomana, Waianae Coast, and Waianae Mountains * STORM INFORMATION: - About 230 miles southwest of Lihue or about 270 miles west-southwest of Honolulu - 19.4N 161.6W - Storm Intensity 110 mph - Movement North-northeast or 30 degrees at 18 mph SITUATION OVERVIEW ------------------ Hurricane Lowell continues to accelerate toward the north-northeast and approach the area. As the center of Lowell passes southwest then west of Niihau through tonight, expect damaging winds, heavy flooding rainfall, and extremely dangerous and damaging surf to develop over portions of the Hawaiian Islands into Tuesday morning. A Hurricane Warning remains in effect for Kauai and Niihau, and a Tropical Storm Warning is in effect for Oahu. Preparations should be rushed to completion in the warned areas. East to southeast winds will gradually strengthen over the western half of the Hawaiian Islands through the afternoon. Several stations on southern Kauai, including Lihue Airport, are already measuring sustained winds of 30 mph or more with gusts over 40 mph. Damaging tropical storm force winds could develop as early as late this afternoon across Kauai County and early this evening on Oahu. Hurricane conditions are expected over portions of Kauai County overnight, with the highest probability of hurricane force winds occurring on Niihau. It is important to note that winds can be accelerated over and downwind of terrain, leading to areas of hurricane force wind gusts. As winds shift from east to southeast this afternoon to south overnight, areas affected by downslope wind gusts will likely change. A broad shield of deep tropical moisture surrounding Lowell will continue to spread over all Hawaiian islands through tonight, increasing the threat of heavy rain and isolated thunderstorms. Heavy downpours could lead to flash flooding and/or mudslides, especially in steep terrain, and flash flooding has already been reported on portions of Kauai. Rainbands could become persistent and anchored in some areas, exacerbating the flash flood threat. The risk of flash flooding and mudslides is greatest for Kauai and Niihau, but also exists for all other islands due to the extent of the moisture associated with Lowell. Over 15 inches of rain is possible over portions of Kauai, mainly over the interior mountains. A foot or more remains possible over southeast Big Island. An extremely large south to southwest swell generated by Lowell will rapidly build through the remainder of the day and peak tonight over portions of Hawaiian waters. A High Surf Warning is in effect for south-facing shores of all islands and for west-facing shores of the Big Island. Dangerously large and damaging surf and coastal inundation are expected along the immediate coast of exposed south- and west-facing shores, particularly on Kauai and Niihau, and possibly Oahu. The highest surf may reach 20 to 30 feet on Kauai and Niihau tonight, then rapidly diminish on Tuesday. Extra large surf, on top of 1 to 4 feet of storm surge and peak afternoon high tides, will generate major wave run-up and coastal inundation along exposed low lying areas of south- and west-facing shores, particularly for Kauai and Niihau, and possibly for Oahu. Conditions will be conducive for fast-moving, short-lived waterspouts and tornadoes in the rainbands associated with Lowell, especially near Kauai and Niihau. This threat will continue through tonight, then diminish quickly Tuesday morning. POTENTIAL IMPACTS ----------------- * WIND: Protect against life-threatening wind having possible extensive impacts across Niihau and Kauai. Potential impacts in this area include: - Considerable roof damage to sturdy buildings, with some having window, door, and garage door failures leading to structural damage. Mobile homes severely damaged, with some destroyed. Damage accentuated by airborne projectiles. Locations may be uninhabitable for weeks. - Many large trees snapped or uprooted along with fences and roadway signs blown over. - Some roads impassable from large debris, and more within urban or heavily wooded places. Several bridges, causeways, and access routes impassable. - Large areas with power and communications outages. Also, protect against dangerous wind having possible limited to significant impacts across Oahu. * FLOODING RAIN: Protect against life-threatening rainfall flooding having possible extensive impacts across Niihau and Kauai. Potential impacts include: - 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. Protect against dangerous rainfall flooding having possible significant impacts across all other islands. * SURGE: Protect against life-threatening surge having possible significant impacts across Niihau and Kauai. Potential impacts in this area include: - Areas of inundation with storm surge flooding accentuated by waves. Damage to several buildings, mainly near the coast. - Sections of near-shore escape routes and secondary roads become weakened or washed out, especially in usually vulnerable low spots. - Major beach erosion with heavy surf overtopping nearby roadways. - Moderate damage to marinas, docks, and piers. Several small craft broken away from moorings, especially in unprotected anchorages. Elsewhere across the Hawaiian islands, little to no impact is anticipated. * TORNADOES: Prepare for a dangerous tornado event having possible significant impacts across Niihau and Kauai. Potential impacts include: - The occurrence of scattered tornadoes can hinder the execution of emergency plans during tropical events. - Several places may experience tornado damage with a few spots of considerable damage, power loss, and communications failures. - Locations could realize roofs torn off frame houses, mobile homes demolished, boxcars overturned, large trees snapped or uprooted, vehicles tumbled, and small boats tossed about. Dangerous projectiles can add to the toll. Prepare for a tornado event having possible limited impacts across the rest of the main Hawaiian Islands from Oahu to the Big Island. PRECAUTIONARY/PREPAREDNESS ACTIONS ---------------------------------- * EVACUATIONS: Follow the advice of local officials. * OTHER PREPAREDNESS INFORMATION: Now is the time to complete all preparations to protect life and property in accordance with your emergency plan. Ensure you are in a safe location before the onset of strong winds or possible flooding. If you are relocating to safe shelter, leave as early as possible. Allow extra time to reach your destination. Many roads and bridges will be closed once strong winds arrive. Check the latest weather forecast before departing and drive with caution. If heading to a community shelter, become familiar with the shelter rules before arrival, especially if you have special needs or have pets. Take essential items with you from your Emergency Supplies Kit. Failure to adequately shelter may result in serious injury or loss of life. Always heed the advice of local officials and comply with any orders that are issued. Remember, during the storm 9 1 1 Emergency Services may not be able to immediately respond if conditions are unsafe. This should be a big factor in your decision making. Keep cell phones well charged. Cell phone chargers for automobiles can be helpful, but be aware of your risk for deadly carbon monoxide poisoning if your car is left idling in a garage or other poorly ventilated area. It is important to remain calm, informed, and focused during an emergency. Be patient and helpful with those you encounter. If you are a visitor, be sure to know the name of the city or town in which you are staying and the name of the county or parish in which it resides. Listen for these locations in local news updates. Pay attention for instructions from local authorities. Storm surge is the leading killer associated with tropical storms and hurricanes! Make sure you are in a safe area away from the surge zone. Even if you are not in a surge-prone area, you could find yourself cutoff by flood waters during and after the storm. Heed evacuation orders issued by the local authorities. Rapidly rising flood waters are deadly. If you are in a flood-prone area, consider moving to higher ground. Never drive through a flooded roadway. Remember, turn around don't drown! If a Tornado Warning is issued for your area, be ready to shelter quickly, preferably away from windows and in an interior room not prone to flooding. If driving, scan the roadside for quick shelter options. If in a place that is vulnerable to high wind, such as near large trees, a manufactured home, upper floors of a high-rise building, or on a boat, consider moving to a safer shelter before the onset of strong winds or flooding. Closely monitor weather.gov, NOAA Weather radio or local news outlets for official storm information. Be ready to adapt to possible changes to the forecast. Ensure you have multiple ways to receive weather warnings. * ADDITIONAL SOURCES OF INFORMATION: - For information on appropriate preparations see ready.gov - For information on creating an emergency plan see getagameplan.org - For additional disaster preparedness information see redcross.org NEXT UPDATE ----------- The next local statement will be issued by the National Weather Service in Honolulu HI around 500 PM HST, or sooner if conditions warrant.Moderate · Expected