Kalawao County, HI Tornado Risk & Storm Shelter Cost
How likely is a tornado in Kalawao County, HI?
Kalawao County carries no recorded tornado touch anywhere in NOAA's 1950-2025 database - a real zero, the same result most of the Northeast and Pacific coast gets. Nationally, Kalawao County ranks at the 0th percentile for tornado frequency. Hawaii has 5 counties in this dataset; Kalawao County ranks 5 of them by frequency.
Kalawao County's EF4-5 history
Kalawao County's record has no EF4-5 tornado - its 0 tracks split 0 weak and 0 significant. That does not rule one out in the future, only that none has been recorded since 1950.
What a storm shelter costs near Kalawao County
For a Kalawao County homeowner, budget $2,890-$13,280 for a shelter or safe room ($7,645 typical) - this pass found no Hawaii-specific rebate on top of FEMA's underlying 75% national cost-share program.
The outage nobody plans for
81 people live in Kalawao County, and a tornado outbreak's power loss usually reaches far more of Hawaii than the tracks themselves touch. A portable battery unit is the faster, no-fuel way to bridge that outage.
Read this before you rely on it
This is a county-level figure, not a per-address probability. Kalawao County covers about 12 square miles, so a single touch here counts the same as a single touch in a county a fraction of that size. Pre-radar-era records (before the 1990s) are also documented by NOAA as undercounting weaker tornadoes in sparsely-instrumented areas. Kalawao County has about 81 residents.