Cold Threat Description

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." Near-record to historic freeze producing temperatures less than 24F…OR…a Wind Chill Warning in effect for dangerous wind chills below 12F…OR…a Winter Storm Warning in effect for significant winter precipitation with snow accumulations greater than 0.50”, or sleet accumulation greater than 0.25”, or ice accretion on trees/power lines greater than 0.25”, or ANY ice accretion on roadways.
High	"A High Threat to Life and Property from Excessive Cold." Hard Freeze conditions with temperatures between 24F-27F for two or more hours…OR…a Wind Chill Warning in effect with lowest wind chills between 12F-20F…OR…a Winter Weather Advisory in effect for snow accumulation of 0.10” to 0.50”, or sleet accumulation of 0.10” to 0.25”, or ice accretion on trees/powerlines less than 0.25”, or glaze of ice on bridges and overpasses.
Moderate	"A Moderate Threat to Life and Property from Excessive Cold." A Frost Advisory in effect with widespread frost coverage greater than 55% within a defined area…OR…freeze conditions with temperatures between 28F-32F for two or more hours…OR…a Wind Chill Advisory in effect with lowest wind chills between 21F-28F…OR…a Winter Weather Advisory in effect for snow accumulations less than 0.10”, or sleet accumulations less than 0.10”, AND no ice accumulation.
Low	"A Low Threat to Life and Property from Excessive Cold." Areas of frost with coverage 25%-54% within a defined area…OR…near freezing temperatures between 33F-35F…OR…Wind Chill Advisory in effect with lowest wind chills between 29F-35F…OR…flurries (very light snow) with no accumulation.
Very Low	" A Very Low Threat to Life and Property from Excessive Cold." Patchy frost with coverage less than 25% within a defined area…OR…temperatures between 36F-39F.
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.

Threat Awareness