Some of the numbers are already in: 113 deaths caused by both Harvey and Irma, with $290 billion is damages.

http://abcnews.go.com/US/hurricanes-harvey-irma-cost-us-economy-290-billion/story?id=49761970

Combined damage from Hurricanes Harvey and Irma could cost the U.S. economy as much as $290 billion, according to a new forecast.

Hurricane Harvey, which battered Houston with record amounts of rain and flooding last month, is estimated to be one of the costliest weather disasters in U.S. history, and Irma is expected to cause record-breaking damage as well, AccuWeather President Joel Myers said in a statement Sunday.

“We believe the damage estimate from Irma to be about $100 billion — among the costliest hurricanes of all time. This amounts to 0.5 of a percentage point of the GDP of $19 trillion,” Myers said. “We estimated that Hurricane Harvey is to be the costliest weather disaster in U.S. history, at $190 billion, or 1 full percentage point of the GDP.”

“Together, AccuWeather predicts, these two disasters amount to 1.5 of a percentage point of the GDP, which will about equal and therefore counter the natural growth of the economy for the period of mid-August through the end of the fourth quarter,” he added.

Myers said the economic costs include disruptions to businesses, increased rates of unemployment, damage to infrastructure, crop losses, property damage and higher fuel prices.