Colorado River Headwaters (COZ205) - Fire Weather Forecast

Record Heat for the Intermountain West and Northern Plains; Heavy Rainfall and Severe Weather Threats

Record setting heat is expected over the next several days from the Intermountain West through the northern Plains. Furthermore, fire weather concerns increase with dry and breezy conditions. Meanwhile, heavy rainfall and severe thunderstorm threats for the Ohio/Tennessee Valleys, central Appalachians and Southeast today. The threat shifts to central Gulf Coast and across central Texas this week. Read More >

COZ205-140030- COZ205-140030- Colorado River Headwaters- 223 AM MDT Mon Jul 13 2026 Fire Weather Planning Forecast for Wrn Colorado and Ern Utah National Weather Service Grand Junction CO 223 AM MDT Mon Jul 13 2026 .DISCUSSION... High pressure remains in control keeping hot temperatures in the forecast. Moisture will start slowly increasing from the south allowing afternoon showers and storms to form each afternoon through much of next week. Due to the location of the high, convection will track from northeast to southwest today, very uncommon. Stronger showers/storms will like cause gusty outflow winds to occur. ...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.........Sunny (0-10%) until 1200, then partly cloudy (40-50%). Isolated showers and thunderstorms after 1200. Chc of lightning....10 percent. Max temperature.....85-95 F. Min humidity........12-17%. 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....North 10 to 15 mph. Mixing Height.......1500 ft AGL until 0900. 12500 ft AGL after 1100. Transport Winds.....Southwest 5 to 10 mph until 1200, then north. Smoke dispersal.....Poor until 0900. Good after 1200. .TONIGHT... Sky/weather.........Partly cloudy (30-40%). Isolated showers and thunderstorms until 2400. Patchy smoke after 2400. Chc of lightning....10 percent. Min temperature.....58-68 F. Max humidity........44-54%. 20-foot winds.......Downslope/downvalley winds 3 to 6 mph. Localized gusts up to 20 mph in the evening. CWR.................0 percent. 15K Ft MSL Winds....North 10 to 15 mph. Mixing Height.......10000 ft AGL until 2000, then 1000 ft AGL. Transport Winds.....Southeast 5 mph. Smoke dispersal.....Fair until 2100, then poor. .TUESDAY... Sky/weather.........Sunny (0-10%) until 1200, then partly cloudy (40-50%). Isolated showers and thunderstorms after 1200. Chc of lightning....10 percent. Max temperature.....83-93 F. Min humidity........12-17%. 20-foot winds.......Upslope/upvalley winds 4 to 8 mph. Localized gusts up to 20 mph in the afternoon. CWR.................10 percent. 15K Ft MSL Winds....Northeast 10 to 15 mph. Mixing Height.......1500 ft AGL until 0900. 13500 ft AGL after 1000. Transport Winds.....Northeast 5 mph. Smoke dispersal.....Poor until 0900. Very good after 1200. .FORECAST FOR DAY 3 THROUGH 7... .WEDNESDAY...Partly cloudy. Scattered showers and thunderstorms. Lows 52-62. Highs 82-92. Winds less than 15 mph. .THURSDAY...Partly cloudy. Scattered showers and thunderstorms. Lows 51-61. Highs 79-89. Winds less than 15 mph. .FRIDAY...Partly cloudy. Scattered showers and thunderstorms. Lows 49-59. Highs 78-88. Winds less than 15 mph. .SATURDAY...Partly cloudy. Scattered showers and thunderstorms. Lows 49-59. Highs 79-89. .SUNDAY...Partly cloudy. Scattered showers and thunderstorms. Lows 51-61. Highs 79-89.