NWS Greenville-Spartanburg Criteria for Non-Precipitation Watches/Warnings/Advisories

Winter Hazards Across the North; Heavy Rainfall Across the Gulf Coast; Severe Weather Outlook

Moisture across the northern Plains, upper Great Lakes into northern New England will likely bring a period of snow, sleet and freezing rain through this weekend. Meanwhile, heavy rainfall continues along the Gulf Coast with areas of flooding. Fire weather conditions continue for the areas of the Plains, southern Appalachians into portions of Florida. Severe thunderstorm potential increasing. Read More >

NWS Greenville-Spartanburg Criteria for Non-Precipitation Watches/Warnings/Advisories
Hazard Type	Watch/Warning Name Criteria	Advisory Name Criteria
Cold Weather
Heat	Excessive Heat Watch/Warning Heat Index 110 or greater	Heat Advisory Heat Index 105 or greater but less than 110
Wind (Non-Thunderstorm)	High Wind Watch/Warning Sustained winds higher than 40 mph and/or frequent gusts greater than 57 mph	Wind Advisory Sustained Winds of 31-40 mph, and/or frequent gusts of 46-57 mph
Frost Freeze	Freeze Watch/Warning Low temperature of 32 degrees or less during the Growing Season*	Frost Advisory Scattered to widespread frost is forecast during the Growing Season*
Fog	N/A	Dense Fog Advisory Fog causing widespread visibility of 1/4 mile or less

NWS Greenville-Spartanburg Criteria for Non-Precipitation Watches/Warnings/Advisories

Hazard Type

Watch/Warning Name
Criteria

Advisory Name
Criteria

Cold Weather