520
FNUS75 KFGZ 130910
FWSFGZ

Spot Forecast for Big Bug Piles...USFS
National Weather Service Flagstaff AZ
210 AM MST Mon Oct 13 2025

Forecast is based on ignition time of 0800 MST on October 13.
If conditions become unrepresentative, contact the
National Weather Service in Flagstaff, AZ

.DISCUSSION...Showers and thunderstorms are expected again today,
with wetting rains likely in the stronger storms. Drier conditions
then set in for Tuesday. Breezy southwest winds are expected this
afternoon, with even stronger winds expected on Tuesday

.TODAY...

Sky/weather.........Mostly cloudy. Showers likely before 10 AM MST,
                    with showers and thunderstorms then re-developing
                    after 2 PM MST.
Chance of pcpn......80 percent.
Max temperature.....57 to 60 degrees.
Min humidity........80 to 85 percent.
Wind (20 ft)........Southwest winds 10 to 15 mph, gusts to near 25 mph
                    in the afternoon. Gusty and erratic winds expected
                    near thunderstorms.
Max Vent Rate.......Excellent.
Clearing Index......1434.
Mixing height.......4700 ft AGL.
Transport winds.....South 20 to 25 knots increasing to 30 to 35
                    knots in the afternoon.

.TONIGHT...

Sky/weather.........Mostly cloudy. Showers and possibly a thunderstorm
                    before 8 PM MST, with a few lingering showers then
                    possible through the overnight.
Chance of pcpn......40 percent.
Min temperature.....45 to 48 degrees.
Max humidity........89 to 93 percent.
Wind (20 ft)........South winds 5 to 10 mph.
Min Vent Rate.......Poor.
Clearing Index......21.
Mixing height.......100 ft AGL.
Transport winds.....South 20 to 25 knots decreasing to around 15
                    knots after 3 am.

.TUESDAY...

Sky/weather.........Mostly sunny.
Chance of pcpn......5 percent.
Max temperature.....54 to 57 degrees.
Min humidity........66 to 69 percent.
Wind (20 ft)........Southwest winds 15 to 20 mph, gusts 30 to 35
                    mph in the afternoon.
Max Vent Rate.......Excellent.
Clearing Index......1863.
Mixing height.......5200 ft AGL.
Transport winds.....South around 25 knots increasing to around 35
                    knots in the late morning and 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://www.weather.gov/dlh/fwd?lat=34.43&lon=-112.351&clat=34.43&clon=-112.351

$$
Forecaster...HUMPHREYS
Requested by...Adam Mendenhall
Type of request...PRESCRIBED
.TAG 2523188.4/FGZ
.DELDT 10/13/25
.FormatterVersion 2.0.0
.EMAIL adam.mendenhall@usda.gov,jason.heffner@usda.gov,autin.langham@usda.gov,austin.langham@usda.gov