How long does it take frostbite to set in?

ST. LOUIS (KSDK) – The brutal cold that will follow the incoming storm is expected to last for more than 30 hours, and doctors at St. Louis University hospital say this is when frostbite and hypothermia become real dangers.

With frostbite, you'll start experiencing a tingling sensation and gradual numbness – which can lead to permanent damage.

Hypothermia occurs when your overall body temperature drops – and it can cause heart failure and even death.

How quickly can frostbite set in? It depends on the temperature. It can take as little as 30 minutes if temperatures fall below freezing, and drop to five minutes as temperatures crawl into the negatives. Check out the chart below for a full look:


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