Colorado River Headwaters (COZ205) - Fire Weather Forecast

Severe Thunderstorms and Heavy Rainfall Across the South; Heat Spreads Across the West and Southern Plains

A couple of frontal boundaries will move east and south from the Plains to the Gulf and Atlantic coastlines. These boundaries will focus showers and thunderstorms through the weekend, with scattered severe thunderstorms from the Southern Plains and across the Gulf Coast states. Locally heavy rainfall may also occur, which may be welcome news across drought areas. Meanwhile, heat spreads westward. Read More >

COZ205-090100- COZ205-090100- Colorado River Headwaters- 246 AM MDT Fri May 8 2026 Fire Weather Planning Forecast for Wrn Colorado and Ern Utah National Weather Service Grand Junction CO 246 AM MDT Fri May 8 2026 .DISCUSSION...A warming trend kicks in today and will continue into next week. Relative humidities will begin to drop to critical levels around the Four Corners, then spread northward this weekend. Hot, dry, windy conditions return next week as temperatures surge well above average. Widespread critical fire weather develops next week, though localized critical fire weather conditions will be possible through the weekend. ...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.........Mostly sunny (20-30%). Chc of lightning....0 percent. Max temperature.....61-71 F. Min humidity........16-26%. 20-foot winds.......Upslope/upvalley winds 4 to 8 mph. Localized gusts up to 25 mph in the afternoon. CWR.................0 percent. 15K Ft MSL Winds....Northwest 25 to 35 mph decreasing to 15 to 20 mph in the afternoon. Mixing Height.......1000 ft AGL until 0900, then 10000 ft AGL. Transport Winds.....West 5 to 10 mph. Smoke dispersal.....Poor until 0900. Very good after 1200. .TONIGHT... Sky/weather.........Mostly clear (20-30%). Chc of lightning....0 percent. Min temperature.....36-46 F. Max humidity........51-61%. 20-foot winds.......Downslope/downvalley winds 3 to 6 mph. Localized gusts up to 25 mph in the evening. CWR.................0 percent. 15K Ft MSL Winds....West 20 to 25 mph increasing to 20 to 30 mph after midnight. Mixing Height.......7500 ft AGL until 2000, then 500 ft AGL. Transport Winds.....West 5 mph. Smoke dispersal.....Good until 2100, then poor. .SATURDAY... Sky/weather.........Mostly sunny (20-30%) until 1200, then partly cloudy (30-40%). Isolated showers and thunderstorms after 1200. Chc of lightning....10 percent. Max temperature.....63-73 F. Min humidity........13-23%. 20-foot winds.......Downslope/downvalley winds 4 to 8 mph becoming west 10 to 15 mph in the afternoon. Localized gusts up to 30 mph. CWR.................10 percent. 15K Ft MSL Winds....Northwest 20 to 30 mph becoming west 20 to 25 mph in the afternoon. Mixing Height.......500 ft AGL until 0800. 13500 ft AGL after 0900. Transport Winds.....West 5 to 10 mph until 1200, then 15 to 20 mph. Smoke dispersal.....Poor until 0900. Excellent after 1200. .FORECAST FOR DAY 3 THROUGH 7... .SUNDAY...Mostly clear. Lows 31-41. Highs 64-74. Winds less than 15 mph. .MONDAY...Clear. Lows 34-44. Highs 73-83. West winds 10 to 20 mph with gusts to 35 mph. .TUESDAY...Clear. Lows 39-49. Highs 76-86. West winds 10 to 20 mph with gusts to 35 mph. .WEDNESDAY...Mostly clear. Isolated showers and thunderstorms. Lows 41-51. Highs 75-85. .THURSDAY...Partly cloudy. Isolated showers and thunderstorms. Lows 41-51. Highs 72-82.