...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 7 AM PST FRIDAY... * WHAT...Light to moderate snow. Additional accumulations up to 4 inches mainly above 3,500 feet. Additional accumulations on the Grapevine nearing 1 inch. Winds gusting as high as 45 mph. * WHERE...Grapevine. * WHEN...Until 7 AM PST Friday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the morning and evening commutes. Gusty winds could bring down tree branches. * ADDITIONAL DETAILS...Snow levels remaining below 3,000 feet through Thursday morning, then rising above 4,000 feet Thursday afternoon. Snow levels falling again to 2,500-3,000 feet Friday morning. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. &&