Colorado River Headwaters (COZ205) - Fire Weather Forecast

Hazardous Coastal Conditions for the Mid-Atlantic; Storm System Approaching Southern Alaska

A Nor'easter will create hazardous marine and coastal conditions along the Mid-Atlantic coast through mid-week, with significant coastal flooding and beach erosion possible. Meanwhile, another strong storm system is forecast to bring high winds and heavy precipitation to portions of southern Alaska. Elsewhere, relatively benign weather is expected through the first half of the work week. Read More >

COZ205-210115- COZ205-210115- Colorado River Headwaters- 303 AM MDT Tue Oct 20 2026 Fire Weather Planning Forecast for Wrn Colorado and Ern Utah National Weather Service Grand Junction CO 303 AM MDT Tue Oct 20 2026 .DISCUSSION... This is an automatically generated forecast with no discussion. The normal Fire Weather Forecast will resume in its entirety in the spring. ...GUSTY ERRATIC WINDS CAN BE EXPECTED NEAR ANY SHOWERS OR THUNDERSTORMS... ...THE SMOKE DATA IS CALCULATED FROM AN AVERAGE AT 6000 FEET MSL... .TODAY... Sky/weather.........Partly cloudy (40-50%). Isolated showers. Chc of lightning....0 percent. Max temperature.....53-63 F. Min humidity........39-49%. 20-foot winds.......Downslope/downvalley 3 to 6 mph becoming upslope/upvalley 4 to 8 mph by 1100. CWR.................10 percent. 15K Ft MSL Winds....Southwest 10 to 15 mph. Mixing Height.......1500 ft AGL until 1100, then 5000 ft AGL. Transport Winds.....Southwest 5 mph. Smoke dispersal.....Poor. .TONIGHT... Sky/weather.........Partly cloudy (30-40%). Chc of lightning....0 percent. Min temperature.....36-46 F. Max humidity........72-87%. 20-foot winds.......Upslope/upvalley 4 to 8 mph becoming downslope/downvalley 3 to 6 mph by sunset. CWR.................0 percent. 15K Ft MSL Winds....Southwest 10 to 15 mph increasing to 20 to 25 mph after midnight. Mixing Height.......1000 ft AGL. Transport Winds.....South 5 mph. Smoke dispersal.....Poor. .WEDNESDAY... Sky/weather.........Partly cloudy (50-60%) until 1200, then mostly cloudy (70-80%). Scattered showers and isolated thunderstorms after 1200. Chc of lightning....20 percent. Max temperature.....58-68 F. Min humidity........37-47%. 20-foot winds.......Downslope/downvalley 3 to 6 mph becoming upslope/upvalley 4 to 8 mph by 1100. CWR.................70 percent. 15K Ft MSL Winds....Southwest 20 to 25 mph decreasing to 15 to 20 mph in the afternoon. Mixing Height.......500 ft AGL until 1000. 5000 ft AGL after 1100. Transport Winds.....South 5 mph. Smoke dispersal.....Poor until 1200, then fair. .FORECAST FOR DAY 3 THROUGH 7... .THURSDAY...Showers and isolated thunderstorms. Lows 38-48. Highs 52-62. Winds less than 15 mph. .FRIDAY...Mostly cloudy. Showers and isolated thunderstorms. Lows 37-47. Highs 47-57. Southwest winds 10 to 20 mph with gusts to 35 mph. .SATURDAY...Partly cloudy. Scattered showers and isolated thunderstorms. Lows 29-39. Highs 44-54. Winds less than 15 mph. .SUNDAY...Mostly clear. Isolated showers. Lows 26-36. Highs 49-59. .MONDAY...Mostly clear. Lows 28-38. Highs 51-61.