The City of Sierra Madre has issued a Yellow Flag Alert effective immediately. The County of Los Angeles Public Works Department has issued a Phase 1 Mudflow forecast as of 8:00 AM, Saturday, December 12, 2009.
A Phase 1 indicates that small isolated debris and mudflows are possible at specific locations. Streets may once again be flooded or blocked by debris. Woodland Drive, Skyland Drive, and other streets may be closed due to blockage and cleanup efforts throughout the day and night.
Parking restrictions are in effect in the Upper and Lower Canyon during Yellow or Red Flag alerts. Vehicles may be towed at owner’s expense. The affected streets are: Mount Wilson Trail, Churchill Rd., Skyland Dr., Fern Glen, Fern Dr., Idlehour Ln., Canyon Crest Dr., Orange Dr., Woodland Dr., Brookside Lane, Sunnyside Lane, Yucca Trail, Sturtevant Dr., Elm Ave., and Holly Trail. Residents in the affected areas are urged to be "set" to leave at a moments notice and may choose to voluntarily evacuate.