Based on the overnight model runs a new set of Watches were issued. This is very encouraging but there is a high degree of uncertainty at this point. IF the storm track holds these amounts will be too low for lower elevations, so believe it or not given last nights model runs they have been conservative with this initial watch (for lower elevations). The evening GFS run was not in line with the overnight run. Notice the amounts for the higher elevations are not much higher than the lower elevations. At this point, the higher elevations look like they will do better than the last storm, but it appears the lower elevations be in play once again.
URGENT - WINTER WEATHER MESSAGE National Weather Service Grand Junction CO 340 AM MST Sun Dec 30 2018 COZ022-023-302230- /O.NEW.KGJT.WS.A.0009.181231T1300Z-190101T1600Z/ Animas River Basin-San Juan River Basin- Including the cities of Durango, Bayfield, Ignacio, and Pagosa Springs 340 AM MST Sun Dec 30 2018 ...WINTER STORM WATCH IN EFFECT FROM MONDAY MORNING THROUGH TUESDAY MORNING... * WHAT...Heavy snow possible. Total snow accumulations of 4 to 8 inches possible. * WHERE...Animas River Basin and San Juan River Basin, including the Highway 160 corridor between Durango and Pagosa Springs. * WHEN...From Monday morning through Tuesday morning. * ADDITIONAL DETAILS...Plan on slippery road conditions. The hazardous conditions could impact the morning and evening commutes. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Storm Watch means there is potential for significant snow, sleet or ice accumulations that may impact travel. Continue to monitor the latest forecasts.
URGENT - WINTER WEATHER MESSAGE National Weather Service Grand Junction CO 340 AM MST Sun Dec 30 2018 COZ009-012-017>019-302230- /O.NEW.KGJT.WW.Y.0043.181231T0100Z-190101T1600Z/ Grand and Battlement Mesas-West Elk and Sawatch Mountains- Uncompahgre Plateau and Dallas Divide- Northwest San Juan Mountains-Southwest San Juan Mountains- Including the cities of Crested Butte, Taylor Park, Marble, Ridgway, Glade Park, Telluride, Ouray, Lake City, Silverton, Rico, and Hesperus 340 AM MST Sun Dec 30 2018 ...WINTER WEATHER ADVISORY IN EFFECT FROM 6 PM THIS EVENING TO 9 AM MST TUESDAY... * WHAT...Snow expected. Total snow accumulations of 5 to 10 inches expected. * WHERE...Grand and Battlement Mesas, West Elk and Sawatch Mountains, Uncompahgre Plateau and Dallas Divide, Northwest San Juan Mountains and Southwest San Juan Mountains. * WHEN...From 6 PM this evening to 9 AM MST Tuesday. * ADDITIONAL DETAILS...Plan on snowpacked and icy road conditions. This will make travel difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Weather Advisory for snow means periods of snow will cause primarily travel difficulties. Expect snow covered roads and limited visibilities, and use caution while driving. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1.