* WHAT...Sub-freezing temperatures as low as 28.
* WHERE...White Pine, Southern Lander and Southern Eureka, Northern Elko, Ruby Mountains and East Humboldt Range in Elko, South Central Elko, and Southwest Elko Counties.
* WHEN...Until 8 AM PDT this morning.
* IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing.