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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 is in effect until September 26 at 7:00 AM HST.

The warning was issued by the National Weather Service (NWS) on September 25 at 10:56 PM HST. While the latest local forecast projects peak wind speeds of 15 to 25 mph with gusts up to 35 mph, the NWS notes that there is still a potential for strong tropical storm-force winds between 58 and 73 mph due to forecast uncertainty.

Potential impacts from the wind are considered significant. Residents may expect damage to roofing, siding, porches, awnings, and sheds, alongside potential window, door, and garage door failures. Unanchored mobile homes could be damaged, and unsecured lightweight objects may become dangerous projectiles. Additionally, several large trees could be snapped or uprooted, and fences and road signs may be blown over.

Transportation and utility infrastructure are also expected to be affected, with some roads, bridges, and access routes rendered impassable by large debris. Scattered power and communications outages are anticipated, especially in areas with above-ground lines. Furthermore, a localized storm surge is possible, with peak inundation potential reaching 1 to 3 feet.

Why it is dangerous and what to do

⚠️ Safety
• Complete remaining efforts to protect life and property as soon as possible.
• Move to safe shelter before the wind becomes hazardous.
• Prepare for significant wind damage and secure lightweight outdoor objects.
📊 The numbers, from wweather1 data
Hilo: now +23°, Rain showers.
That is 2° below the September climate norm.
The record for this date is +30° (2018).
Three-day forecast: 26 September: +24°/+23° · 27 September: +25°/+23° · 28 September: +27°/+22°
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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