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Tropical Storm Madeline weakening, Tropical Storm Warning continues

Hurricane Madeline


11 a.m. Hawaii County Civil Defense audio message

Hawaii County under Tropical Storm Warning

A Tropical Storm Warning is in effect for…

  • Hawaii County
  • Maui County including the islands of Maui, Molokai, Lanai and Kahoolawe

A Tropical Storm Warning means that tropical storm conditions are expected somewhere within the watch area, in this case over the next 12 hours. Preparations to protect life and property should be complete.

For storm information specific to your area, please monitor products issued by the National Weather Service office in Honolulu Hawaii.

At 11 p.m. HST Wednesday (Aug 31), the center of Tropical Storm Madeline was located about 150 miles (245 km) south-southwest of South Point, Hawaii. Madeline is moving toward the west near 14 mph (22 km/h). This motion is expected to continue for the next couple of days, with some increase in forward speed expected on Friday.

Maximum sustained winds are near 50 mph (85 km/h) with higher gusts. Steady weakening is forecast during the next 48 hours, and Madeline is expected to weaken to a Tropical Depression by Friday.

Tropical-storm-force winds extend outward up to 90 miles (150 km) from the center.

The estimated minimum central pressure is 1003 mb (29.62 inches).

Hazards affecting land

WIND: Tropical storm conditions are expected to continue over Hawaii County and portions of Maui County tonight. Winds will be strongest over mountains and where winds blow downslope from higher terrain.

SURF: Large swells generated by Madeline will peak in Hawaiian waters overnight, and could be damaging along east facing shores of Hawaii County, especially in the Puna and Kau Districts.

RAIN: Madeline is expected to produce total rain accumulations of 5 to 10 inches, with isolated maximum amounts near 15 inches, across Hawaii County, especially over windward areas and the Kau District. Total rainfall accumulations of 1 to 3 inches, with isolated maximum amounts up to 4 inches, can be expected in the islands of Maui County, mainly over windward terrain. This rainfall may lead to dangerous flash floods and mudslides.

Hurricane Lester


At 11 p.m. HST Wednesday (Aug 31), the center of Hurricane Lester was located about 835 miles (1,345 km) east of Hilo, Hawaii. Lester is moving toward the west near 14 mph (22 km/h) and this motion is expected to gradually become west northwest, with little change in forward speed, through late Friday.

Maximum sustained winds are near 110 mph (175 km/h) with higher gusts. Some weakening is forecast through late Friday.

Hurricane-force winds extend outward up to 35 miles (55 km) from the center and tropical-storm-force winds extend outward up to 105 miles (165 km).

The estimated minimum central pressure is 967 mb (28.56 inches).

Surf Hazards
Swells generated by Lester will start to build over east facing shores Thursday and Friday. Surf will peak this weekend, becoming very large and damaging along east facing shores.

School closures due to Hurricane Madeline

Government and businesses closed due to Hurricane Madeline

HELCO Power outage reports

State parks and trails shut down due to the Hurricane

Red Cross evacuation shelters are open

National Weather Service Presentation on Hurricanes.

HELCO Reminds Customers to Prepare for Hurricane Season

In preparation for Hurricanes Madeline and Lester, the public is advised to be StormReady

  • Build or restock your emergency preparedness kit.
  • Include a flashlight with fresh batteries, cash, first aid supplies, and any medication or supplies specific to you or your family members.
  • Plan how to communicate with family members.
  • Create an evacuation plan for your household.
  • Bring in or secure outdoor furniture and other items that could blow away.
  • Keep your vehicle fueled and cell phone charged.
  • To help preserve water availability through the storm, the Department of Water Supply asks customers to minimize non-essential use of water, such as irrigation, at this time.

Find more StormReady tips and sign up for notifications at

For links to the latest weather forecasts, reports, radar and satellite imagery visit our Weather Page at

NWS Infrared Satellite Image Loop

NWS Infrared Satellite Image Loop

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