Vermont roads are especially prone to black ice during:
Heavy rain only.
Black ice forms in cold conditions, not heavy rain.
Temperatures near or below freezing, especially at night, on bridges, and in shaded areas.
Summer afternoons.
Black ice cannot form in summer conditions.
Only during snowstorms.
Black ice often forms BETWEEN storms, on clear cold nights.
Black ice is a thin, nearly invisible layer of ice that forms when moisture freezes on cold pavement. It's most common at night or early morning when temperatures hover near freezing, and especially on bridges (which cool faster than roadways), overpasses, and shaded areas. Reduce speed, avoid sudden steering or braking, and increase following distance by 4+ seconds.
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