Death tolls often rise weeks after storm hits
More than six months after Hurricane Irma’s catastrophic rampage across the Caribbean and the southeastern United States, the number of deaths attributed to the storm increased to 129 — more than twice the amount reported at the end of the storm.
It took years for Hurricane Katrina’s death toll to become fully known. That number is still debated today with figures used by disaster agencies varying by as much as 600 deaths.
And while the change in the number of dead from Hurricane Maria is perhaps the most dramatic — rising from 64 to a 2,975 after the Puerto Rican governor commissioned university researchers to review the count — it’s common for death tolls in natural disasters to escalate weeks and months later because of deaths indirectly caused by a storm.
Those can include things like infections from contaminated water, electrocutions from downed power lines and failure to receive dialysis because of power outages. Deaths directly linked to a disaster include drownings from a storm surge or being crushed in a wind-toppled building.

