276
FNUS75 KTWC 141836
FWSTWC

Spot Forecast for Catalina Piles, Mount Lemmon...USFS
National Weather Service Tucson AZ
1136 AM MST Fri Nov 14 2025

Forecast is based on ignition time of 0600 MST on November 16.

.DISCUSSION...A storm system will move across the area Saturday
night into Sunday, resulting in a chance of rainfall, breezy
southwest winds and cooler temperatures. This system will move
east of the area Sunday night. A second system will then move
into the area Monday night into Tuesday, with another round
of precipitation which will persist through at least Wednesday.
The precipitation with the second system may start as early as
late afternoon/early evening on Monday (10 percent). The second
system will be colder and snow levels will lower down to around
7500 feet by Wednesday.

.SUNDAY...

Sky/weather.........Mostly cloudy. Showers likely and a slight
                    chance of thunderstorms.
Chance of pcpn......60 percent.
Max temperature.....43-46 degrees.
Min humidity........65-68 percent.
20-foot winds.......Southwest 15 to 20 mph with gusts to 30-35
                    mph. Gusty and erratic winds expected near
                    thunderstorms.
Mixing height.......Increasing to 1500 ft AGL in the afternoon.
Transport winds.....Southwest 18 to 22 knots.

.SUNDAY NIGHT...

Sky/weather.........Mostly cloudy, becoming partly cloudy. Slight
                    chance of showers in the evening.
Chance of pcpn......10 percent.
Min temperature.....37-40 degrees.
Max humidity........90-93 percent.
20-foot winds.......Southwest 10 to 15 mph early in the evening,
                    diminishing to 5 to 10 mph by late evening and
                    becoming south overnight.
Mixing height.......Decreasing to 100 ft AGL.
Transport winds.....Southwest 10 to 13 knots.

.MONDAY...

Sky/weather.........Partly cloudy, becoming mostly cloudy late.
                    Slight chance of showers late.
Chance of pcpn......10 percent.
Max temperature.....43-46 degrees.
Min humidity........60-63 percent.
20-foot winds.......South 4 to 9 mph in the morning, becoming
                    southwest 7 to 12 mph in the afternoon.
                    Afternoon gusts to around 20 mph.
Mixing height.......Increasing to 2500 ft AGL in the afternoon.
Transport winds.....South to southwest 10 to 13 knots.

$$
Forecaster...ZELL
Requested by...Chad Rice
Type of request...PRESCRIBED
.TAG 2525944.0/TWC
.DELDT 11/14/25
.FormatterVersion 2.0.0
.EMAIL chad.rice@usda.gov

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