061
FNUS75 KFGZ 101952
FWSFGZ

Spot Forecast for UBC 20...USFS
National Weather Service Flagstaff AZ
1252 PM MST Thu Sep 10 2026

Forecast is based on ignition time of 1600 MST on September 10.
If conditions become unrepresentative, contact the
National Weather Service in Flagstaff, AZ

.DISCUSSION...Dry and warm conditions today will transition to
a slightly more active pattern for Friday. Expect a significant
change in dew points, with values rising 10 to 15 degrees from
this afternoon to Friday afternoon. Winds will generally be
light, trending southwest each afternoon and strengthening
slightly on Friday.

.TODAY...

Sky/weather.........Partly cloudy. A slight chance of an
                    afternoon shower or thunderstorm. Gusty
                    and erratic winds expected near thunderstorms.
Chance of pcpn......5 percent.
Chance lightning....5 percent.
Max temperature.....88 to 90.
Min humidity........19 to 21 percent.
Wind (20 ft)........West-southwest 5 to 8 mph.
Max Vent Rate.......Excellent.
Clearing Index......1018.
Mixing height.......10800 ft AGL.
Transport winds.....West around 10 knots.

.TONIGHT...

Sky/weather.........Mostly clear. A slight chance of an
                    evening shower or thunderstorm. Gusty and
                    erratic winds expected near thunderstorms.
Chance of pcpn......10 percent.
Chance lightning....10 percent.
Min temperature.....56 to 58.
Max humidity........75 to 80 percent.
Wind (20 ft)........Light and variable winds 1 to 3 mph.
Min Vent Rate.......Poor.
Clearing Index......1.
Mixing height.......100 ft AGL.
Transport winds.....Southwest 0 to 5 knots.

.FRIDAY...

Sky/weather.........Becoming partly cloudy. A chance of showers
                    and thunderstorms in the afternoon.
Chance of pcpn......40 percent.
Chance lightning....30 percent during the afternoon.
Max temperature.....84 to 86.
Min humidity........30 to 32 percent.
Wind (20 ft)........Southwest winds 10 to 12 mph with gusts
                    to 20 mph by 1100-1200L. Gusty and erratic
                    winds expected near thunderstorms.
Max Vent Rate.......Excellent.
Clearing Index......1561.
Mixing height.......9500 ft AGL in the morning and early afternoon
                    increasing to 10700 ft AGL late in the
                    afternoon.
Transport winds.....Southwest 5 to 10 knots shifting to the west
                    around 15 knots in the afternoon.


A weather forecast table for your SPOT location is linked.
The information provided by this site is for planning purposes only
and is not intended to substitute information provided by an official
National Weather Service SPOT forecast.
https://weather.gov/dlh/fwd?lat=34.7412&lon=-111.5553&clat=34.7412&clon=-111.5553

$$
Forecaster...PETERSON
Requested by...Baker
Type of request...PRESCRIBED
.TAG 2621461.1/FGZ
.DELDT 09/10/26
.FormatterVersion 2.0.0
.EMAIL allison.baker@usda.gov