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Tropical Storm Warning Issued for Big Island East

September 26, 2026 · wweather1 editorial · 2 min read

The National Weather Service in Honolulu has issued a Tropical Storm Warning for Big Island East, including Hilo, Pahoa, and Volcano. The warning was issued on September 25 at 5:14 PM HST.

The National Weather Service (NWS) in Honolulu issued the Tropical Storm Warning for the eastern portion of the Big Island, affecting Hilo, Pahoa, and Volcano. The alert was published at 5:14 PM HST on September 25, with hazardous conditions expected into early September 26.

Latest local forecasts indicate winds below tropical storm force, with peak winds expected between 20 and 30 mph and gusts up to 40 mph. However, forecast uncertainty leaves potential for winds between 58 and 73 mph. The overall wind threat assessment has remained steady from previous updates.

Potential impacts from the wind include damage to roofing, siding, porches, awnings, and mobile homes, as well as window or door failures in a few buildings. Unsecured objects could become hazardous projectiles, and several large trees, fences, and roadway signs may be blown over. Scattered power and communications outages are possible, particularly where above-ground lines are present.

In addition to wind threats, localized storm surge is possible, with potential peak inundation reaching 1 to 3 feet. Debris could leave some roads, urban access routes, bridges, and causeways impassable.

Why it is dangerous and what to do

⚠️ Safety
• Complete preparations to protect life and property as soon as possible.
• Move to a safe shelter before winds become hazardous.
• Secure lightweight objects outdoors that could become dangerous projectiles.
• Prepare for potential power and communications outages.
📊 The numbers, from wweather1 data
Hilo: now +24°, Rain showers.
That is 1° below the September climate norm.
The record for this date is +29° (2018).
Three-day forecast: 26 September: +24°/+23° · 27 September: +24°/+22° · 28 September: +28°/+19°
The figures are computed automatically from the Open-Meteo/ERA5 archive — no eyeball estimates.
📰 Data source: NWS. Forecast and analysis — wweather1, based on Open-Meteo / met.no data.

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