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National Weather Service Springfield, MO
Extreme Cold Risk -  
Extreme Cold Risk Day 1
Risk Level
Definition
None
Minimum apparent temperature greater than or equal to 10 degrees F.
Limited
Minimum apparent temperature -9 to 9 deg F.
Elevated
Minimum apparent temperature -10 to -24 deg. F
Significant
Minimum apparent temperature -25 to -34 deg. F.
Extreme
Minimum apparent temperature less than or equal to -35 degrees F
Apparent Temperature is defined as:
Wind Chill Temperature during the cold season.
Heat Index Temperature during the warm season.