“Destructive Damage Threat” - “Considerable Damage Threat” - “Base”
The criteria for a DESTRUCTIVE DAMAGE THREAT is at least 2.75” diameter (baseball-sized) hail and/or 80 mph thunderstorm winds. Warnings with this tag will automatically activate an Emergency Alert on smartphones within the warned area.
The criteria for a CONSIDERABLE DAMAGE THREAT will feature at least 1.75” diameter (golf ball-sized) hail and/or 70 mph thunderstorm winds. This will
not activate an Emergency Alert on smartphones.
The criteria for a baseline or “base” severe thunderstorm warning will remain unchanged: 1 (quarter-sized) hail and/or 58 mph thunderstorm winds. This will also not activate an alert on smartphones. When no damage threat tag is present, the damage is expected to be at the base level.