297
FNUS75 KFGZ 150943
FWSFGZ

Spot Forecast for Firebox Creek...FTA
National Weather Service Flagstaff AZ
243 AM MST Tue Sep 15 2026

Forecast is based on forecast start time of 0600 MST on September 15.
If conditions become unrepresentative, contact the
National Weather Service in Flagstaff, AZ

.DISCUSSION...Overnight showers/storms will likely delay the start of activity
this afternoon. Expect additional showers/storms to fire up around noon/1 PM MST
and continue through the evening hours. Model guidance suggests activity to
persist Tuesday night into Wednesday as well. Storms will be capable of
producing heavy rain leading to flash flooding, gusty/erratic winds, hail,
and frequent lightning. Outside of storm driven winds, look for southerly
winds generally between 5-10 mph.

.TODAY...

Sky/weather.........Mostly cloudy. Patchy fog in the morning. Chance
                    of rain showers and thunderstorms throughout the day.
Chance of pcpn......50-60 percent.
Chance lightning....20 percent increasing to 50 percent in the
                    afternoon.
Max temperature.....64-72 degrees.
Min humidity........57-68 percent.
Wind (20 ft)........South winds around 4-8 mph. Gusty and erratic
                    winds expected near thunderstorms.
Max Vent Rate.......Fair.
Clearing Index......228.
Mixing height.......4700 ft AGL.
Transport winds.....South around 5 knots.

.TONIGHT...

Sky/weather.........Mostly cloudy. Chance of thunderstorms and showers
                    through the evening and overnight hours.
Chance of pcpn......45-55 percent.
Chance lightning....30 percent decreasing to 10 percent overnight.
Min temperature.....48-55 degrees.
Max humidity........100 percent.
Wind (20 ft)........Southeast winds around 5 mph. Gusty and erratic
                    winds expected near thunderstorms.
Min Vent Rate.......Poor.
Clearing Index......2.
Mixing height.......100 ft AGL.
Transport winds.....Southeast around 5 knots.

.WEDNESDAY...

Sky/weather.........Cloudy. Chance of rain showers and thunderstorms
                    throughout the day.
Chance of pcpn......75-85 percent.
Chance lightning....20 percent increasing to 60 percent in the
                    afternoon.
Max temperature.....61-67 degrees.
Min humidity........70-80 percent.
Wind (20 ft)........South winds around 5-10 mph. Gusty and erratic
                    winds expected near thunderstorms.
Max Vent Rate.......Good.
Clearing Index......482.
Mixing height.......3700 ft AGL.
Transport winds.....South 5 to 10 knots.


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=33.8894&lon=-109.7617&clat=33.8894&clon=-109.7617

$$
Forecaster...KONIECZNY
Requested by...AZ-SDC
Type of request...WILDFIRE
.TAG 2621660.4/FGZ
.DELDT 09/15/26
.FormatterVersion 2.0.0
.EMAIL j.nosie23@gmail.com,Danny.Taylor@bia.gov,azsdc@firenet.gov