Winter Weather Products (Non-Routine)

* Winter Storm Watch (WSW)	WMO Header: WWUS42 KFFC Example: archived version
Issued when there is at least a 50 percent chance for winter storm conditions occurring in the next 12 to 48 hours. Winter storm conditions include an accumulation of at least a half inch of sleet, and/or a significant accumulation (1/4 inch or more) of ice due to freezing rain, and/or heavy snow accumulation. Snow accumulations must be at least 2 inches ( except 3 inches in the Northeast Georgia Mountains ) within a 12-hour period, or at least 4 inches in a 24-hour period.
* Wind Chill Watch (WSW)	WMO Header: WWUS42 KFFC Example: N/A
Issued when there is at least a 50 percent chance for wind chill values to drop below minus 15 degrees within the next 12 to 48 hours.
* Blizzard Watch (WSW)	WMO Header: WWUS42 KFFC Example: N/A
Issued when there is at least a 50 percent chance for blizzard conditions within the next 12 to 48 hours. Bizzard conditions consist of sustained wind speeds (or gusts) of at least 35 mph, and considerable falling or blowing snow causing a reduction of visibilities to less than 1/4 mile for at least 3 hours.
* Winter Storm Warning (WSW)	WMO Header: WWUS42 KFFC Example: archived version
Issued when there is at least an 80 percent chance for winter storm conditions occurring within the next 24 hours. Winter storm conditions include an accumulation of at least a half inch of sleet, and/or a significant accumulation (1/4 inch or more) of ice due to freezing rain, and/or heavy snow accumulation. Snow accumulations must be at least 2 inches ( except 3 inches in the Northeast Georgia Mountains ) within a 12-hour period, or at least 4 inches in a 24-hour period.
* Heavy Snow Warning (WSW)	WMO Header: WWUS42 KFFC Example: N/A
Issued when there is at least an 80 percent chance of an accumulation of heavy snow within the next 24 hours. Snow accumulations must be at least 2 inches ( except 3 inches in the Northeast Georgia Mountains ) within a 12-hour period, or at least 4 inches in a 24-hour period.
* Ice Storm Warning (WSW)	WMO Header: WWUS42 KFFC Example: archived version
Issued when there is at least an 80 percent chance that freezing rain will result in the accumulation of at least 1/4 inch of ice within the next 24 hours.
* Heavy Sleet Warning (WSW)	WMO Header: WWUS42 KFFC Example: N/A
Issued when there is at least an 80 percent chance of an accumulation of at least 1/2 inch of sleet within the next 24 hours.
* Blizzard Warning (WSW)	WMO Header: WWUS42 KFFC Example: N/A
Issued when there is at least an 80 percent chance that wind and snow will combine to produce blizzard conditions within the next 24 hours. Bizzard conditions consist of sustained wind speeds (or gusts) of at least 35 mph, and considerable falling or blowing snow causing a reduction of visibilities to less than 1/4 mile for at least 3 hours.
* Wind Chill Warning (WSW)	WMO Header: WWUS42 KFFC Example: N/A
Issued when there is at least an 80 percent chance that wind chill values will drop to at least 15 degrees below zero within the next 24 hours.
* Winter Weather Advisory (WSW)	WMO Header: WWUS42 KFFC Example: archived version
Issued when, within the next 24 hours, there is a high probability of enough snow, sleet, or ice to cause inconvenience, but not enough to warrant a warning.
* Wind Chill Advisory (WSW)	WMO Header: WWUS42 KFFC Example: archived version
Issued when, within the next 24 hours, there is a high probability of wind chill readings below zero degrees, but not low enough to warrant a warning.