Freeze Watch: Lower Columbia Basin of Oregon; Foothills of the Northern Blue Mountains of Oregon; Foothills of the Southern Blue Mountains of Oregon; North Central Oregon; Lower Columbia Basin of Washington; Foothills of the Blue Mountains of Washington

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Freeze Watch — Lower Columbia Basin of Oregon; Foothills of the Northern Blue Mountains of Oregon; Foothills of the Southern Blue Mountains of Oregon; North Central Oregon; Lower Columbia Basin of Washington; Foothills of the Blue Mountains of Washington Severity: Severe. Certainty: Possible. * WHAT...Sub-freezing temperatures as low as 30 possible. * WHERE...Foothills of the Blue Mountains of Oregon and Washington, Lower Columbia Basin of Oregon and Washington, and North Central Oregon. * WHEN...From Monday evening through Tuesday morning. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing.