... WINTER SEASON STORM WARNING IN EFFECT UNTIL 4 AM PST MONDAY ... * WHAT ... Heavy snow. Additional snow accumulations of 1 to 3 inches Total snow build-ups will reach or go beyond 4 inches. in most areas. * WHERE ... In Oregon, Lower Columbia Basin of Oregon and Foothills of the Northern Blue Mountains of Oregon. In Washington, Lower Columbia Basin of Washington and Foothills of heaven Mountains of Washington. * WHEN ... Up until 4 AM PST Monday. * IMPACTS ... Intend on slippery road conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS ... If you should travel, keep an additional flashlight, food, and water in your lorry in case of an emergency situation. The latest road conditions can be obtained by calling 5 1 1, or by visiting online at https://tripcheck.com for Oregon or https://wsdot.com/travel for Washington. &&& &.