* WHAT...Temperatures as low as 34 will result in frost formation.
* WHERE...Northern Mendocino Interior, Northern Lake, and Western Lake.
* WHEN...From 1 AM to 9 AM PDT Monday.
* IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered.
* ADDITIONAL DETAILS...There is some uncertainty on how quickly clouds will come in and prevent frost. So this may limit the frost potential, especially in northern Mendocino county.