Get Forecast Bar Weather alerts on your iPhone
Back to All Alerts

Tropical Cyclone Local Statement

Active

Lanai Mauka; Kahoolawe; Maui Windward West; Maui Leeward West; Haleakala Summit

Status In Progress Started about 1 hour ago
Ends
Issued
Severity Moderate
Urgency Expected
Certainty Likely

Details

HLSHFO
This product covers the Hawaiian islands
**NOLO MOVING SLOWLY WESTWARD**
NEW INFORMATION ---------------
* CHANGES TO WATCHES AND WARNINGS: - The Hurricane Watch has been cancelled for Big Island East, Big Island Interior, Big Island North, Big Island South, Big Island Southeast, Big Island Summits, Kohala, and Kona
* CURRENT WATCHES AND WARNINGS: - A Tropical Storm Warning is in effect for Big Island East, Big Island Interior, Big Island North, Big Island South, Big Island Southeast, Big Island Summits, Kohala, and Kona - A Tropical Storm Watch is in effect for Haleakala Summit, Kahoolawe, Kipahulu, Lanai Leeward, Lanai Mauka, Lanai South, Lanai Windward, Maui Central Valley North, Maui Central Valley South, Maui Leeward West, Maui Windward West, Molokai Leeward South, Molokai North, Molokai Southeast, Molokai West, Molokai Windward, South Haleakala, South Maui/Upcountry, and Windward Haleakala
* STORM INFORMATION: - About 340 miles south-southeast of Honolulu - 16.7N 156.0W - Storm Intensity 90 mph - Movement West or 260 degrees at 5 mph
SITUATION OVERVIEW ------------------
Hurricane Nolo is slowly moving west this morning and will pick up speed as it strengthens into a major hurricane later tonight or early Sunday. Nolo is forecast to accelerate west this weekend with a turn toward the northwest and northwest expected Monday and Tuesday. While the center will stay well south and west of the state, impacts will extend far outside the center of the hurricane.
Bands of moderate to heavy showers and thunderstorms will bring an additional 3 to 6 inches of rainfall to windward and southeast regions of Big Island. Periods of moderate to locally heavy rain may spread into Maui, bringing an additional 1 to 2 inches of rain. Localized heavy rain could produce significant, life-threatening flooding and mudslides, especially in areas of steep terrain. Terrain-enhanced rainfall from outer rain bands may also reach the islands of Oahu and Kauai.
A Tropical Storm Warning remains in effect for Big Island as tropical storm force winds and gusts, especially over complex terrain, continue across that island today. A Tropical Storm Watch is in effect for Maui County, where tropical storm force winds and gusts are occurring due to terrain enhancement. Strong, gusty winds will affect all Hawaiian Islands through the weekend. A Wind Advisory is in effect for the islands of Oahu and Kauai.
Swells generated by Nolo will bring dangerously large, rough surf and severe rip currents, especially for the east and southeast facing shores of Big Island. A High Surf Advisory remains in effect for the east and southeast and facing shores of Big Island as well as the east facing shores of Maui, Molokai, Kauai and Oahu.
Tornadoes and waterspouts are possible near and over Big Island, primarily to the right of the Nolo's track.
POTENTIAL IMPACTS -----------------
* WIND: Potential impacts from the main wind event are now unfolding across Big Island and Maui. Remain well sheltered from dangerous wind having possible significant impacts. If realized, these impacts include: - Some damage to roofing and siding materials, along with damage to porches, awnings, carports, and sheds. A few buildings experiencing window, door, and garage door failures. Mobile homes damaged, especially if unanchored. Unsecured lightweight objects become dangerous projectiles. - Several large trees snapped or uprooted, but with greater numbers in places where trees are shallow rooted. Several fences and roadway signs blown over. - Some roads impassable from large debris, and more within urban or heavily wooded places. A few bridges, causeways, and access routes impassable. - Scattered power and communications outages, but more prevalent in areas with above ground lines.
Potential indirect impacts from the main wind event are also now unfolding across the rest of the state. Remain well sheltered from hazardous wind having possible limited impacts.
* FLOODING RAIN: Potential impacts from the flooding rain are still unfolding across windward and southeast Big Island. Remain well guarded against dangerous flood waters having possible significant impacts. If realized, these impacts include: - 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.
Potential impacts from the flooding rain are still unfolding across windward and southeast Big Island and portions of Maui. Remain well guarded against locally hazardous flood waters having possible limited impacts.
* TORNADOES: Potential impacts from tornadoes are still unfolding across Big Island. Remain well braced against a tornado event having possible limited impacts. If realized, these impacts include: - 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.
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 5 PM HST, or sooner if conditions warrant.
Explore All Active Alerts
Data from the National Weather Service
Service provided by Forecast Bar