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

Extreme Heat Lingers; Severe Thunderstorms for Portions of the Plains and Southeast; Heavy Rainfall Threats

Gusty winds and heavy rainfall may impact the Big Island of Hawaii as a nearby tropical system passes west of the islands. From the Southwest U.S., Rockies and across the Gulf Coast, heavy rainfall could lead to isolated flash flooding. Severe thunderstorms are expected for areas of the Plains, Gulf Coast and Southeast through Tuesday. Extreme heat lingers for the southern Plains and Southwest. 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