542
FNUS75 KTWC 301545
FWSTWC

Spot Forecast for Harrington Fire...San Carlos
National Weather Service Tucson AZ
845 AM MST Sat Aug 30 2025

Forecast is based on forecast start time of 0900 MST on August 30.

.DISCUSSION...There will be a slight chance of thunderstorms this
afternoon and evening, with increasing thunderstorm chances Sunday
into next week. Near normal high temperatures. RH values stay
elevated and winds remain light through the forecast period. Any
thunderstorms that develop may produce heavy rainfall and gusty
outflow winds to around 40 mph.

.TODAY...

Sky/weather.........Sunny then becoming partly cloudy. Slight chance
                    of showers and thunderstorms in the afternoon.
Chance of pcpn......20 percent.
Max temperature.....79-82 degrees.
Min humidity........24-27 percent.
20-foot winds.......East 3-6 mph becoming southwest to west 5-10 mph
                    in the afternoon. Afternoon gusts to around 17
                    mph. Gusty and erratic winds expected near
                    thunderstorms in the afternoon.
Mixing height.......Increasing to 9700 ft AGL.
Transport winds.....Southeast 5 to 8 knots, becoming west in the
                    afternoon.

.TONIGHT...

Sky/weather.........Partly cloudy. Slight chance of showers and
                    thunderstorms in the evening.
Chance of pcpn......10 percent.
Min temperature.....52-55 degrees.
Max humidity........60-63 percent.
20-foot winds.......West to northwest 4-9 mph with gusts to near 15 mph
                    early in the evening, becoming northeast 2-7 mph by
                    late evening and continuing overnight.
Mixing height.......Decreasing to 500 ft AGL.
Transport winds.....Northwest 6 to 9 knots, becoming northeast overnight.

.SUNDAY...

Sky/weather.........Mostly sunny then becoming mostly cloudy. Showers and
                    thunderstorms likely in the afternoon.
Chance of pcpn......60 percent.
Max temperature.....78-81 degrees.
Min humidity........25-28 percent.
20-foot winds.......East to southeast 3-7 mph, becoming south to
                    southwest 5-10 mph in the afternoon. Gusty and erratic
                    winds expected near thunderstorms in the afternoon.
Mixing height.......Increasing to 8200 ft AGL in the afternoon.
Transport winds.....East to southeast 5 to 8 knots.

$$
Forecaster...ZELL
Requested by...Incident Commander
Type of request...WILDFIRE
.TAG 2520987.0/TWC
.DELDT 08/30/25
.FormatterVersion 2.0.0
.EMAIL azphc@firenet.gov

Visit us on Facebook...Twitter...YouTube...and at weather.gov/Tucson