FNUS75 KGJT 181612

FWSGJT



Spot Forecast for Houston Mountain...CO-GJC

National Weather Service Grand Junction CO

1012 AM MDT Sat Jul 18 2026



Forecast is based on forecast start time of 1100 MDT on July 18. 

If conditions become unrepresentative, contact the National Weather

Service.



.DISCUSSION...Showers and storms are expected this afternoon and 

early evening. They will be capable of producing wind gusts up to

45 mph, small hail and brief heavy rainfall. Outflows from these

showers will cause non-diurnal wind direction and speeds. There is

a potential for a few outflows to impact the area through the 

evening.



.REST OF TODAY...



Sky/weather.........Partly sunny (45-55 percent). Slight chance of 

                    showers and thunderstorms in the afternoon. 

CWR.................10 percent. 

Max temperature.....64-69. 

Min humidity........33-38 percent. 

Wind (20 ft)........North winds 5-10 mph. Gusty and erratic winds 

                    expected near thunderstorms in the afternoon. 

Smoke dispersal.....Good. 

Mixing height.......5500 ft AGL increasing to 8700 ft AGL in the 

                    afternoon. 

Transport winds.....North 10 mph. 

Clearing Index......280 increasing to 820 in the afternoon. 

Chance of thunder...35 percent. 



.TONIGHT...



Sky/weather.........Mostly cloudy (55-65 percent) then becoming 

                    mostly clear (20-30 percent). Chance of showers 

                    and thunderstorms in the evening. 

CWR.................10 percent. 

Min temperature.....55-60. 

Max humidity........49-54 percent. 

Wind (20 ft)........West winds 5-10 mph shifting to the south 

                    overnight. Gusty and erratic winds expected 

                    near thunderstorms in the evening. 

Smoke dispersal.....Fair decreasing to poor (3000 knot-ft) 

                    overnight. 

Mixing height.......7100 ft AGL decreasing to 600 ft AGL overnight. 

Transport winds.....South 10 mph. 

Clearing Index......500 decreasing to 50 overnight. 

Chance of thunder...30 percent. 



.SUNDAY...



Sky/weather.........Sunny (10-20 percent) then becoming partly 

                    sunny (50-60 percent). Slight chance of showers 

                    and thunderstorms in the afternoon. 

CWR.................10 percent. 

Max temperature.....66-71. 

Min humidity........32-37 percent. 

Wind (20 ft)........Northeast winds 5-10 mph shifting to the north in 

                    the afternoon. Gusty and erratic winds expected 

                    near thunderstorms in the afternoon. 

Smoke dispersal.....Poor (27000 knot-ft) increasing to good in the 

                    afternoon. 

Mixing height.......6700 ft AGL increasing to 11400 ft AGL in the 

                    afternoon. 

Transport winds.....East 5 mph shifting to the north 13 mph in the 

                    afternoon. 

Clearing Index......270 increasing to 910 in the afternoon. 

Chance of thunder...25 percent. 



$$

Forecaster...Kris Sanders

Requested by...Kimberly Youker

Type of request...WILDFIRE

.TAG 2617493.2/GJT

.DELDT 07/18/26

.FormatterVersion 2.0.0

.EMAIL cogjc@firenet.gov