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 >

COZ205-100945- COZ205-100945- Colorado River Headwaters- 1136 AM MDT Sat May 9 2026 Fire Weather Planning Forecast for Wrn Colorado and Ern Utah National Weather Service Grand Junction CO 1136 AM MDT Sat May 9 2026 ...RED FLAG WARNING IN EFFECT FROM 2 PM UNTIL 8 PM MDT THIS EVENING FOR GUSTY WINDS, LOW HUMIDITY AND DRY FUELS FOR COLORADO FIRE WEATHER ZONE 200... .DISCUSSION...Hot, dry, and windy conditions persist through the next several days, with at least localized critical fire weather conditions possible. Wind gusts of 25-30 mph along with relative humidities of 10-15 percent for portions of northwest Colorado are expected this afternoon. ...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%) until 1200, then partly cloudy (30-40%). Chc of lightning....0 percent. Max temperature.....62-72 F. Min humidity........11-16%. 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.................0 percent. 15K Ft MSL Winds....Northwest 25 to 35 mph becoming west 20 to 25 mph in the afternoon. Mixing Height.......1500 ft AGL until 0900, then 13500 ft AGL. Transport Winds.....West 5 to 10 mph until 1200, then 20 to 25 mph. Smoke dispersal.....Poor until 0900. Excellent after 1200. .TONIGHT... Sky/weather.........Partly cloudy (30-40%). Chc of lightning....0 percent. Min temperature.....31-41 F. Max humidity........53-63%. 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....Northwest 15 to 20 mph. Mixing Height.......11500 ft AGL until 2000, then 1000 ft AGL. Transport Winds.....Northwest 10 to 15 mph until 2400, then northeast 5 mph. Smoke dispersal.....Very good until 2100, then poor. .SUNDAY... Sky/weather.........Mostly sunny (10-20%). Chc of lightning....0 percent. Max temperature.....64-74 F. Min humidity........11-21%. 20-foot winds.......Downslope/downvalley 3 to 6 mph becoming upslope/upvalley 4 to 8 mph by 1100. CWR.................0 percent. 15K Ft MSL Winds....North 15 to 20 mph becoming northwest 10 to 15 mph in the afternoon. Mixing Height.......1000 ft AGL until 0900, then 8500 ft AGL. Transport Winds.....Northeast 5 mph until 1200, then northwest. Smoke dispersal.....Poor until 0900. Good after 1500. .FORECAST FOR DAY 3 THROUGH 7... .MONDAY...Mostly clear. Lows 33-43. Highs 71-81. Winds less than 15 mph. .TUESDAY...Mostly clear. Lows 39-49. Highs 75-85. Winds less than 15 mph. .WEDNESDAY...Mostly clear. Isolated showers and thunderstorms. Lows 41-51. Highs 76-86. Winds less than 15 mph. .THURSDAY...Partly cloudy. Isolated showers and thunderstorms. Lows 44-54. Highs 69-79. .FRIDAY...Mostly clear. Isolated showers and thunderstorms. Lows 38-48. Highs 69-79.