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News / Weather

Hawaii Braces for Powerful Kona Storm: What to Expect

Hawaii is preparing for a significant Kona storm expected to bring flash flooding, damaging winds, and severe thunderstorms across the state. Governor Josh Green has declared an emergency to allocate resources and ensure public safety. This...

HOUR BY HOUR: What to expect as a powerful storm approaches Hawaii
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Hawaii Braces for Powerful Kona Storm: What to Expect Image via Hawaii News Now

Key Insights

  • A statewide flood watch is in effect until Saturday, impacting Kauai, Oahu, Maui County, and potentially Hawaii Island.
  • The storm is expected to bring heavy rainfall, with some areas potentially receiving over 20 inches of rain.
  • Strong Kona winds are anticipated, with gusts strong enough to knock down trees and power lines, especially on the northern slopes and windward regions of each island.
  • There is a possibility of winter weather on the Big Island summits, with heavy snowfall possible at higher elevations.
  • A second, potentially more impactful round of rainfall is expected from Friday afternoon through Sunday.

In-Depth Analysis

### Storm Timeline and Expected Impacts

The Kona storm is expected to impact Hawaii over several days, with varying levels of intensity across different islands.

  • **Tuesday:** Kauai will experience increasing rainfall throughout the day, becoming torrential by late night. Strong southerly (Kona) winds will develop, gusting above 30 mph.
  • **Wednesday:** The heaviest rainfall is forecast to reach Oahu. Maui County will begin to feel the impacts in the afternoon and evening. The flooding threat for Hawaii Island will increase throughout the day.
  • **Thursday:** Rainfall will be more scattered, and the flooding threat will decrease slightly. Southerly winds will weaken slightly but could become strong in regions north of the mountains. There's a possibility of snow on Big Island summits.
  • **Friday - Weekend:** Another round of rainfall is expected to impact the entire state, potentially more impactful than the first. Strong south to southwest Kona winds are expected.

### How to Prepare

  • **Identify evacuation routes and shelters.**
  • **Plan for pets and vulnerable family members.**
  • **Avoid forested and coastal areas due to the dangers of storm surge, high surf, rising streams, and falling trees.**
  • **Download the HNN Weather app** from the Apple App Store or Google Play for the latest updates.

### Who This Affects Most

This storm will disproportionately affect residents in low-lying areas prone to flooding, those living near coastal regions, and individuals with limited mobility or resources to evacuate.

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FAQ

What is a Kona storm?

A Kona storm is a type of cyclone that forms near Hawaii during the winter months, characterized by strong southerly winds and heavy rainfall.

How much rain is expected?

Some areas could receive over 20 inches of rain.

What should I do if I live in a flood-prone area?

Identify evacuation routes, prepare an emergency kit, and stay informed about the latest weather updates.

Takeaways

  • The Kona storm poses a significant threat to Hawaii with potential for flash flooding, damaging winds, and severe thunderstorms.
  • Residents should prepare by identifying evacuation routes, planning for vulnerable family members and pets, and avoiding dangerous areas.
  • Stay informed through weather updates and heed warnings from local authorities.
  • The second round of rainfall expected Friday through the weekend could be more impactful than the first.

Discussion

Do you think this storm will be as severe as predicted? Share your thoughts and preparations in the comments below!

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Sources

Disclaimer

This article was compiled by Yanuki using publicly available data and trending information. The content may summarize or reference third-party sources that have not been independently verified. While we aim to provide timely and accurate insights, the information presented may be incomplete or outdated.

All content is provided for general informational purposes only and does not constitute financial, legal, or professional advice. Yanuki makes no representations or warranties regarding the reliability or completeness of the information.

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Always do your own research (DYOR) before making any decisions based on the information presented.