National Weather Service United States Department of Commerce
Hazard Map Threat Levels Safety & Impact
Graphical Hazardous Weather Outlook
Excessive Cold Threat

The "Excessive Cold Hazard Map" depicts the local threat of expected cold season weather conditions for specified areas.  It is largely based on one or more of the following: minimum temperature relative to freezing, lowest wind chill, measurable freezing/frozen precipitation, and frost.  

Excessive Cold Threat Level

Threat  Level Descriptions

Extreme

"An Extreme Threat to Life and Property from Excessive Cold."

A very hard freeze with temperatures below 24 degrees (F)...OR...areas to widespread measurable freezing/frozen precipitation (not a trace) with coverage more than 25% within a defined area...OR...lowest wind chills below 10 degrees (F) with at least 10 mph wind.

High

"A High Threat to Life and Property from Excessive Cold."

A hard freeze with temperatures between 24 - 27 degrees (F)...OR...patchy measurable freezing/frozen precipitation (not a trace) with coverage less than 25% within a defined area...OR...lowest wind chills 10 - 14 degrees (F) with at least 10 mph wind.

Moderate

"A Moderate Threat to Life and Property from Excessive Cold."

A significant freeze with temperatures between 28 - 32 degrees (F)...OR...lowest wind chills 15 - 19 degrees (F) with at least 10 mph wind...OR...widespread frost with coverage more than 55% within a defined area.  

Low

"A Low Threat to Life and Property from Excessive Cold."

Near freezing with temperatures between 33 - 35 degrees (F)...OR...lowest wind chills 20 - 24 degrees (F) with at least 10 mph wind...OR...areas of frost with coverage 25 - 54%  within a defined area.    

Very Low
" A Very Low Threat to Life and Property from Excessive Cold."

Lowest wind chills 25 - 34 degrees (F) with at least 10 mph wind...OR...patchy frost with coverage less than 25% within a defined area.   

Non-Threatening
" No Discernable Threat to Life and Property from Excessive Cold."

Cold season weather conditions are non-threatening.   

Note: Cold season weather conditions become hazardous when the associated cold is considered to be "excessive" according to local standards.  Cold temperatures may support the occurrence of a freeze, low wind chills, freezing/frozen precipitation, and/or frost.  Importantly, each of these hazards represent a considerable potential negative impact to central Floridians.