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National Weather Service Springfield, MO
Extreme Heat Risk -  
Extreme Heat Risk Day 1
Risk Level
Definition
None
Maximum Apparent Temperature < 95
Limited
Maximum Apparent Temperature 95 to 104
Elevated

Maximum Apparent Temperature 105 to 109
OR
Maximum Apparent Temperature greater than or equal to 100 for 4 consecutive days.

Significant

Maximum Apparent Temperature 110 to 114
OR
Maximum Apparent Temperature greater than or equal to 105 for 4 consecutive days.

Extreme
Maximum Apparent Temperature greater than or equal to 115
OR
Maximum Apparent Temperataure greater than or equal to 105 for 5 consecutive days.