FNUS75 KGJT 210841

FWSGJT



Spot Forecast for D1  Ponderosa...USFS

National Weather Service Grand Junction CO

241 AM MDT Sat Mar 21 2026



Forecast is based on ignition time of 0800 MDT on March 21. 

If conditions become unrepresentative, contact the National Weather

Service.



.DISCUSSION...Expect critical fire weather conditions today with

extremely low RH and winds gusting 20 to 30 mph through the

afternoon. A weak cold front moves through early Sunday shifting

winds northwesterly and cooling temperatures about ten degrees.

Winds and temperatures gradually increase through the coming week

with with critical fire weather conditions returning Wednesday and

beyond. 



.TODAY...



Sky/weather.........Mostly sunny (30-40 percent). 

CWR.................0 percent. 

Max temperature.....78-83. 

Min humidity........6-11 percent. 

Wind (20 ft)........South winds 5 mph increasing to west 15 mph 

                    with gusts to around 30 mph in the afternoon. 

Smoke dispersal.....Good increasing to excellent in the afternoon. 

Mixing height.......5200 ft AGL increasing to 12000 ft AGL in the 

                    afternoon. 

Transport winds.....Southwest 26 mph. 

Clearing Index......1020. 



.TONIGHT...



Sky/weather.........Mostly cloudy (60-70 percent). 

CWR.................0 percent. 

Min temperature.....40-45. 

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

Wind (20 ft)........West winds 15 mph with gusts to around 30 mph 

                    decreasing to 5 mph overnight. 

Smoke dispersal.....Excellent decreasing to poor (14000 knot-ft) 

                    overnight. 

Mixing height.......8200 ft AGL decreasing to 1200 ft AGL 

                    overnight. 

Transport winds.....West 24 mph decreasing to 13 mph overnight. 

Clearing Index......1050 decreasing to 140 overnight. 



.SUNDAY...



Sky/weather.........Mostly sunny (35-45 percent). 

CWR.................0 percent. 

Max temperature.....65-70. 

Min humidity........12-17 percent. 

Wind (20 ft)........Northwest winds 10 mph with gusts to 20 mph. 

Smoke dispersal.....Fair increasing to good in the afternoon. 

Mixing height.......4500 ft AGL increasing to 7600 ft AGL in the 

                    afternoon. 

Transport winds.....Northwest 13 mph. 

Clearing Index......450 increasing to 760 in the afternoon. 



$$

Forecaster...David Byers

Requested by...Mike Bertagnolli

Type of request...PRESCRIBED

.TAG 2606923.0/GJT

.DELDT 03/21/26

.FormatterVersion 2.0.0

.EMAIL michael.bertagnolli@usda.gov