Boston-based catastrophe risk modeling firm AIR Worldwide said it was analyzing possible insured loss from windstorm Klaus, which tore through Spain and France over the weekend.

AIR said the storm was akin to a 1999 winter storm, which struck France and Switzerland causing an insured loss that Swiss Re put at more than $2.3 billion.

Peter Dailey, director of atmospheric science at AIR Worldwide in Boston, said the Klaus forecast "was for a storm of similar intensity to 1999's winter storm Martin, though likely of more limited geographic scope. In fact, winter storm Klaus...affected a wider swath than had originally been forecast, causing damage from the Dordogne area south to Barcelona, in Spain's Catalunya region."

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