Wind Advisory

* WHAT...South winds 20 to 30 mph with gusts up to 50 mph expected.

* WHERE...Most of the Shasta Valley in central Siskiyou County. This includes portions of Interstate 5 as well as the communities of Weed, Gazelle, Grenada and Montague.

* WHEN...From 10 AM Thursday to 4 AM PST Friday.

* IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result.

* ADDITIONAL DETAILS...Highways and running west to east will be exposed to tough driving conditions given the strong southerly wind speeds.