Impact Level Guidance
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CATEGORY | HEAT STRESS | SEVERE WEATHER (Thunderstorms, Hurricane, High Winds, Excessive Rainfall, Tornadoes) |
EXTREME COLD/WINTER WEATHER |
---|---|---|---|
NONE | Heat Stress Category 0-1 |
No severe weather expected | -- |
SLIGHT | Heat Stress Category 2-3 |
Conditions may approach severe but damaging effects unlikely. | Temperatures at or below 32° for less than 12 hours |
MODERATE | Heat Stress Category 4 |
Widely scattered severe weather conditions expected and potential for damaging conditions. | Temperatures below 32°F for more than 12 hours. Chance of snow, sleet or freezing rain, with possible accumulation. |
HIGH | Heat Stress Category 5 |
Widespread severe weather conditions expected and damaging conditions likely. | Temperatures at or below 20° for 6 hours or more. Accumulating snow, sleet, or freezing rain likely. |