210 
FNUS75 KTWC 051519
FWSTWC

Spot Forecast for Portrero...USFS
National Weather Service Tucson AZ
819 AM MST Tue Aug 5 2025

Forecast is based on forecast start time of 0800 MST on August 05. 

.DISCUSSION...There will be a chance of thunderstorms this afternoon
and evening and again Wednesday afternoon. Gusty and erratic winds
will be possible with any storms that do develop. Otherwise, very hot 
daytime temperatures this week and minimum RH values in the teens.
Winds will be west to northwest this afternoon, switching around to 
an easterly direction on Wednesday.  

.TODAY...

Sky/weather.........Partly cloudy. A chance of showers and 
                    thunderstorms. 
Chance of pcpn......20 percent increasing to 30 percent in the 
                    afternoon. 
Max temperature.....101-104 degrees. 
Min humidity........17-20 percent. 
20-foot winds.......South 3 to 6 mph, becoming west to northwest 
                    5 to 10 mph with gusts to 17 mph in the 
                    afternoon. Gusty and erratic winds expected 
                    near thunderstorms. 
Mixing height.......Increasing to 12300 ft AGL. 
Transport winds.....Southwest to west 4 to 7 knots. 

.TONIGHT...

Sky/weather.........Partly cloudy. Chance of showers and 
                    thunderstorms in the evening. 
Chance of pcpn......30 percent. 
Min temperature.....73-76 degrees. 
Max humidity........40-43 percent. 
20-foot winds.......West to northwest 5 to 10 mph with gusts to
                    17 mph early in the evening, becoming northwest
                    to north 4 to 9 mph by mid evening and overnight. 
                    Gusty and erratic winds expected near 
                    thunderstorms in the evening. 
Mixing height.......Decreasing to 400 ft AGL. 
Transport winds.....Northwest 7 to 9 knots in the evening, becoming 
                    north overnight. 

.WEDNESDAY...

Sky/weather.........Partly cloudy. Chance of showers and 
                    thunderstorms. 
Chance of pcpn......40 percent. 
Max temperature.....103-106 degrees. 
Min humidity........12-15 percent. 
20-foot winds.......North to northeast 3 to 7 mph in the morning,
                    becoming northeast to east 5 to 10 mph in the
                    afternoon. Gusty and erratic winds expected 
                    near thunderstorms in the afternoon. 
Mixing height.......Increasing to 15400 ft AGL. 
Transport winds.....East 6 to 7 knots. 

$$
Forecaster...ZELL
Requested by...Tucson Dispatch
Type of request...WILDFIRE
.TAG 2519275.0/TWC
.DELDT 08/05/25
.FormatterVersion 2.0.0
.EMAIL aztdc@firenet.gov

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