MIAMI — The United States has already tied its yearly record for billion-dollar weather disasters and the cumulative tab from floods, tornadoes and heat waves has hit $35 billion, the National Weather Service said on Wednesday.

And it’s only August, with the bulk of the hurricane season still ahead.

‘I don’t think it takes a wizard to predict 2011 is likely to go down as one of the more extreme years for weather in history,’ National Weather Service Director Jack Hayes told journalists on a conference call.

The agency’s parent organization, the National Oceanic and Atmospheric Administration or NOAA, launched a campaign on Wednesday to better prepare Americans for violent weather.

There have so far been nine separate disasters this year that caused an economic loss of $1 billion or more in the United States, tying the record set in 2008, NOAA said. The most recent was the summer flooding along the Missouri and Souris rivers in the upper Midwest.

The ‘new reality’ is that both the frequency and the cost of extreme weather are rising, making the nation more economically vulnerable and putting more lives and livelihoods at risk, Hayes said.

The number of U.S. natural disasters has tripled in the last 20 years and […]