Active AlertsSouthern Oglala Lakota

What: Sub-freezing temperatures as low as 22 expected.
Where: Portions of northwestern and southwestern South Dakota and northeast Wyoming.
When: From 9 PM this evening to 9 AM MDT Friday.
Impacts: Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing.

Take steps now to protect tender plants from the cold.