609
FNUS75 KTWC 082331
FWSTWC

Spot Forecast for Lookout Fire...USFS
National Weather Service Tucson AZ
431 PM MST Fri Aug 8 2025

Forecast is based on forecast start time of 0500 MST on August 09.

.DISCUSSION...
Light winds from the north shifting to the northwest in the
afternoon. Winds overnight will be light from the north. Winds
will continue to be from the north Sunday. 40 to 60 percent chance
for showers and thunderstorms Saturday and Sunday afternoon. Any
thunderstorm may produce gusty and erratic winds. Minimum relative
humidities will be around 23 to 26 percent this weekend. A notable
increase in overnight relative humidities is expected with humidity
recoveries becoming around 60 percent Saturday and Sunday night.

.SATURDAY...

Sky/weather.........Sunny then becoming partly sunny. Chance of
                    showers and thunderstorms likely late in
                    the afternoon.
Chance of pcpn......0 percent increasing to 60 percent late in
                    the afternoon.
Max temperature.....75-78 degrees.
Min humidity........21-24 percent.
20-foot winds.......North winds 5 to 9 mph shifting to the
                    northwest in the afternoon. Gusty and erratic
                    winds expected near thunderstorms late in the
                    morning.
Mixing height.......1700 ft AGL increasing to 11100 ft AGL
                    late in the morning decreasing to 4900 ft AGL
late in the afternoon.
Transport winds.....North 7 to 12 knots shifting to the northwest
in the afternoon.

TIME (MST)      6 AM      9 AM      NOON      3 PM
Sky (%).........38        13        66        79
Weather cov.....                    CHANCE    LIKELY
Weather type....NONE      NONE      RNSHWR    RNSHWR
Tstm cov........                    CHANCE    LIKELY
CWR.............0         0         40        60
Temp............57        70        74        70
RH..............42        27        23        29
20 FT wind......NE 5G11   N 4G10    NW 4G10   N 5G10
Mix hgt (ft)....BLW100    5800      10200     4900
Transport wind..N 11      N 8       SE 6      NW 7

.SATURDAY NIGHT...

Sky/weather.........Mostly cloudy then becoming partly cloudy.
                    Chance of showers and thunderstorms in the
                    evening.
Chance of pcpn......40 percent decreasing to 10 percent late in the
                    evening.
Min temperature.....53-56 degrees.
Max humidity........58-61 percent.
20-foot winds.......Northwest winds 5 to 9 mph shifting to the
                    north early in the evening. Gusty and erratic
                    winds expected near thunderstorms in the
                    evening.
Mixing height.......100 ft AGL.
Transport winds.....North around 12 knots decreasing to 5 to 9
                    knots in the evening.

TIME (MST)      6 PM      9 PM      MIDNGT    3 AM
Sky (%).........64        59        37        39
Weather cov.....CHANCE    CHANCE
Weather type....RNSHWR    RNSHWR    NONE      NONE
Tstm cov........CHANCE    CHANCE
CWR.............40        40        10        10
Temp............65        60        58        55
RH..............37        44        51        57
20 FT wind......NW 5G10   N 5G10    N 5G10    N 5G10
Mix hgt (ft)....1600      BLW100    BLW100    BLW100
Transport wind..N 12      N 5       NW 8      N 8

.SUNDAY...

Sky/weather.........Sunny then becoming mostly cloudy. Showers and
                    thunderstorms likely late afternoon.
Chance of pcpn......10 percent increasing to 60 percent late in the
                    morning, then decreasing to 30 percent.
Max temperature.....74-77 degrees.
Min humidity........24-27 percent.
20-foot winds.......North winds 5 to 9 mph shifting to the west in
                    the late morning and afternoon. Gusty and
                    erratic winds expected near thunderstorms late
                    in the morning.
Mixing height.......1100 ft AGL increasing to 9300 ft AGL
                    late in the morning decreasing to 3200 ft AGL
late in the afternoon.
Transport winds.....North 6 to 8 knots shifting to the northwest 9
                    to 11 knots late in the morning.

TIME (MST)      6 AM      9 AM      NOON      3 PM
Sky (%).........32        18        80        80
Weather cov.....                    LIKELY    LIKELY
Weather type....NONE      NONE      RNSHWR    RNSHWR
Tstm cov........                    LIKELY    LIKELY
CWR.............10        10        60        60
Temp............57        68        74        72
RH..............53        34        25        28
20 FT wind......N 5G10    N 4G8     W 5G10    W 5G11
Mix hgt (ft)....400       3800      9000      6800
Transport wind..N 6       N 7       W 9       W 10

$$
Forecaster...MALARKEY
Requested by...Devon Olson
Type of request...WILDFIRE
.TAG 2519376.3/TWC
.DELDT 08/08/25
.FormatterVersion 2.0.0
.EMAIL devon.olson@usda.gov

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