Kaua‘i

Near the geographic center of Kauaʻi is one of the wettest known places on earth, Mount Waiʻaleʻale. Despite this, wildfires can and do occur on the island. Steep slopes, rough terrain, difficult access, a large percentage of highly ignitable invasive grasses, and numerous threatened and endangered native species characterize the Kauaʻi landscape. 

Ignitions occur regularly in the inhabited areas of the island, mostly near the coasts, where the landscape is dominated by current and former agricultural lands as well as grass and brush.

Fires > 50 Acres 1999-2018, Kaua`i (Credit: UH Wildland Fire)

Kauaʻi is among the oldest high Hawaiian Islands and has been shaped by significant erosion, creating its dramatic landscape of valleys. Some of the steepest and least accessible areas include the North Shore to the West side, which also correspond strongly with the highest concentration of threatened and endangered species. This creates a challenging environment for reaching and containing fires when they occur, and presents a risk to the resident endangered species. >> READ MORE

 

After fires burn through an area of native vegetation in Hawaiʻi, the rebounding vegetation is generally dominated by fast growing non-native grasses and shrubs. Not only does this negatively impact biodiversity, but this can also contribute to erosion and the risk of landslides especially on the steep slopes of Kauaʻi. 

 

The biggest large fires have historically occurred on the lee slope of the eastern flank of Waimea valley. This presents a concerning fire risk for the drought-prone community of Kekaha. 

Kauaʻi is known for its high rainfall, but annual rainfall is not always a good indicator for risk. Particularly wet periods over a rainy season can, counterintuitively, significantly elevate hazard levels. Increased precipitation may lead to a surplus of vegetation growth, becoming potential fuel during subsequent drier periods, thereby elevating the risk of large wildfires. Given the changing wind and rainfall patterns arising from climate change, this may lead to increased risk for Kauaʻi.

Kauai Ignitions and Acres Burned (2012-2020)

Plans & Images

Pu`u Kapele, Kaua`i, Feb 2014 Sida Fallax Regeneration After Fire (Credit: JB Friday)

Recent Resources For Hawai‘i

The Grass-Fire Cycle on Pacific Islands

September 24, 2018

Understanding the Grass-Fire Cycle can help to better manage grasslands and savannas, reduce the risk of wildland fire, and limit the impacts of re on our communities, watersheds, and native ecosystems. Tags: Fire Ecology & Effects, Grass-Fire Cycle DOWNLOAD HERE Did you know? Grasses fuel frequent wildfires across large areas in the Western Pacific islands…

2017 Wildfires in Hawaii – PFX Annual Summary

July 3, 2018

Every wildfire incident is part of a larger pattern of wildfire occurrence and is an opportunity to gain experience and insight for wildfire management. View the 2017 Wildfire Summary for Hawaii. Tags: Annual Wildfire Summary, Hawaii DOWNLOAD PDF BOTH THE NUMBER OF WILDLAND FIRES AND ACRES BURNED IN 2017 WERE LESS THAN THE ANNUAL AVERAGE…

Webinar: First Annual Review of Wildfire in Hawaii – 2017

February 27, 2018

A review of the major fire incidents in Hawaii for 2017. Webinar participants chime in with questions and additional information about the fires. KEY WORDS: Fire Behavior & Weather, Fire Communication & Education, Wildfire Operations & Management DOWNLOAD THE SLIDES WATCH THE WEBINAR