Loudoun County, VA Tornado Risk & Storm Shelter Cost
Loudoun County, VA: what NOAA's tornado record says
Since 1979, NOAA has logged 25 tornado tracks crossing Loudoun County - one about every 3 years, which lands it in our Elevated band. Nationally, Loudoun County ranks at the 61st percentile for tornado frequency. Virginia has 133 counties in this dataset; Loudoun County ranks 2 of them by frequency.
Loudoun County's EF4-5 history
Loudoun County's record has no EF4-5 tornado - its 25 tracks split 21 weak and 4 significant. That does not rule one out in the future, only that none has been recorded since 1950.
What a storm shelter costs near Loudoun County
For a Loudoun County homeowner, budget $2,890-$13,280 for a shelter or safe room ($7,645 typical) - this pass found no Virginia-specific rebate on top of FEMA's underlying 75% national cost-share program.
The outage nobody plans for
Power loss after a tornado outbreak in Virginia often reaches homes the storm itself never touched. A battery-backup unit covers the outage without the fuel and venting a generator needs.
Read this before you rely on it
This is a county-level figure, not a per-address probability. Loudoun County covers about 516 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. Loudoun County has about 443,380 residents.