
Lala will continue to impact Hawaii through the weekend. Heavy rainfall, strong winds, dangerous surf and localized flooding are expected. Thunderstorms, heavy rainfall and flash flooding concerns from the mid-Mississippi Valley, Ohio Valley into the central Appalachians and the mid-Atlantic through today. Record heat continues for areas of the Mississippi Valley into the Southeast. Read More >
COZ205-170000-
COZ205-170000-
Colorado River Headwaters-
146 AM MDT Sun Aug 16 2026
Fire Weather Planning Forecast for Wrn Colorado and Ern Utah
National Weather Service Grand Junction CO
146 AM MDT Sun Aug 16 2026
.DISCUSSION...
There is a low chance of precipitation over the high terrain but
wetting rain is not expected. Terrain-based showers and
thunderstorms will be possible each afternoon for the next several
days. Despite the decrease in moisture critical fire weather
conditions will only be localized this week as both wind gusts and
relative humidity looks to be marginal.
...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 (40-50%).
Chc of lightning....0 percent.
Max temperature.....74-84 F.
Min humidity........14-24%.
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....West 5 to 10 mph.
Mixing Height.......1000 ft AGL until 0900. 10000 ft AGL after
1000.
Transport Winds.....Southwest 5 mph until 1200, then west.
Smoke dispersal.....Poor until 0900. Good after 1200.
.TONIGHT...
Sky/weather.........Partly cloudy (30-40%).
Chc of lightning....0 percent.
Min temperature.....49-59 F.
Max humidity........48-58%.
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....West 5 to 10 mph.
Mixing Height.......7500 ft AGL until 2000, then 500 ft AGL.
Transport Winds.....Northwest 5 mph until 2400, then southeast.
Smoke dispersal.....Poor.
.MONDAY...
Sky/weather.........Partly cloudy (30-40%).
Chc of lightning....0 percent.
Max temperature.....76-86 F.
Min humidity........12-22%.
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....West 5 to 10 mph.
Mixing Height.......1000 ft AGL until 0900. 11500 ft AGL after
1000.
Transport Winds.....West 5 mph.
Smoke dispersal.....Poor until 0900. Good after 1200.
.FORECAST FOR DAY 3 THROUGH 7...
.TUESDAY...Mostly clear. Lows 48-58. Highs 75-85. West winds
10 to 20 mph with gusts to 30 mph.
.WEDNESDAY...Partly cloudy. Scattered showers and thunderstorms.
Lows 49-59. Highs 75-85. Winds less than 15 mph.
.THURSDAY...Partly cloudy. Isolated showers and thunderstorms.
Lows 49-59. Highs 77-87. Winds less than 15 mph.
.FRIDAY...Partly cloudy. Scattered showers and thunderstorms.
Lows 49-59. Highs 78-88.
.SATURDAY...Partly cloudy. Scattered showers and thunderstorms.
Lows 50-60. Highs 77-87.