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SPIA Ice Index ®

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The Sperry–Piltz Ice Accumulation Index, or SPIA Index®, is a forward-looking, ice accumulation and ice damage prediction index. When used in conjunction with National Weather Service forecast data, it has been shown to accurately predict the duration, intensity and damage capability of approaching ice storms.

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The Sperry–Piltz Ice Accumulation Index, or SPIA Index®, is a forward-looking, ice accumulation and ice damage prediction index. When used in conjunction with National Weather Service forecast data, it has been shown to accurately predict the duration, intensity and damage capability of approaching ice storms.

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