Spot Forecast
Issued by NWS Tucson, AZ

Home |  Current Version |  Previous Version |  Text Only |  Print | Product List |  Glossary On
Versions: 1 2 3 4 5 6 7 8
459
FNUS75 KTWC 160329
FWSTWC

Spot Forecast for SHAW PEAK...USFS
National Weather Service Tucson AZ
829 PM MST Wed Jul 15 2026

Forecast is based on forecast start time of 2000 MST on July 15.

.DISCUSSION...

Daily chances for late morning and afternoon showers and
thunderstorms. Overnight showers are possible this evening with
low chances (15-20%). Storms could start as early as 10/11 AM
with activity continuing into the early afternoon. Storms can
produce moderate to heavy rainfall. Outflows from thunderstorms
can produce gusty and erratic winds. Min RH will be in the upper
40s with good overnight recoveries.

.REST OF TONIGHT...

Sky/weather.........Mostly cloudy then becoming partly cloudy.
Slight chance of showers early in the morning.
Chance of pcpn......10 percent increasing to 20 percent early in
                    the morning.
Min temperature.....63-66 degrees.
Max humidity........56-59 percent.
20-foot winds.......Southeast winds 5 to 8 mph overnight into the
early morning.
Smoke dispersal.....Poor (3100 knot-ft).
Mixing height.......500 ft AGL.
Transport winds.....North around 8 knots shifting to the east late
                    in the evening, then shifting to the south 6 to
                    8 knots in the late evening and overnight.

TIME (MST)      8 PM      11 PM     2 AM      5 AM
Sky (%).........53        42        67        46
Weather cov.....                              S CHC
Weather type....NONE      NONE      NONE      RNSHWR
Tstm cov........
CWR.............0         10        10        20
Temp............69        68        67        65
RH..............44        45        49        52
20 FT wind......NE 4G8    SE 5G10   SE 4G7    SE 3G6
Mix hgt (ft)....600       500       500       500
Transport wind..N 8       S 8       S 7       S 6
Vrate kt-ft/1K..5         4         4         3
Ventrate Cat....POOR      POOR      POOR      POOR

.THURSDAY...

Sky/weather.........Mostly sunny then becoming mostly cloudy.
                    Chance of thunderstorms in the morning into then
 thunderstorms likely in the late afternoon to early evening.
Chance of pcpn......30 percent early in the morning, then
increasing to 70 percent late in the morning through the late
afternoon, then decreasing to 40 percent in the early evening. Max
temperature.....69-72 degrees. Min humidity........49-52 percent.
20-foot winds.......Southeast winds 5 to 6 mph shifting to the
east up to 5 mph late in the morning, then shifting to the
southwest early in the afternoon shifting to the northwest late in
the afternoon shifting to the south. Gusty and erratic winds
expected near thunderstorms early in the morning. Smoke
dispersal.....Poor (3200 knot-ft) early in the morning increasing
to marginal (12400 knot-ft) in the afternoon increasing to
marginal (14500 knot-ft) in the late morning and afternoon. Mixing
height.......1300 ft AGL increasing to 4300 ft AGL early in the
morning. Transport winds.....South 5 to 6 knots shifting to the
northwest around 4 knots late in the morning, then shifting to the
southwest 4 to 7 knots in the afternoon.

TIME (MST)      6 AM      9 AM      NOON      3 PM
Sky (%).........41        45        83        88
Weather cov.....S CHC     CHANCE    Definite    LIKELY
Weather type....RNSHWR    RNSHWR    RNSHWR    RNSHWR
Tstm cov........          S CHC     LIKELY    LIKELY
CWR.............20        30        80        70
Temp............65        66        69        69
RH..............54        54        54        51
20 FT wind......S 3G6     SE 3G7    SW 2G8    S 3G8
Mix hgt (ft)....500       3400      3700      2900
Transport wind..S 6       SW 5      SW 4      S 6
Vrate kt-ft/1K..3         17        15        18
Ventrate Cat....POOR      MRGL      MRGL      MRGL

.THURSDAY NIGHT...

Sky/weather.........Partly cloudy then becoming mostly cloudy.
Chance of thunderstorms in the evening. Chance
of showers and thunderstorms overnight.
Chance of pcpn......40 percent decreasing to 30 percent early in
                    the evening, then decreasing to 20 percent late
                    in the evening increasing to 30 percent
                    overnight increasing to 40 percent.
Min temperature.....60-63 degrees.
Max humidity........74-77 percent.
20-foot winds.......Southwest winds 5 to 6 mph. Gusty and erratic
                    winds expected near thunderstorms early in the
                    evening. Gusty and erratic winds expected near
                    thunderstorms early in the evening.
Smoke dispersal.....Marginal (12800 knot-ft) early in the evening
                    decreasing to poor (4400 knot-ft) late in the
                    night.
Mixing height.......600 ft AGL.
Transport winds.....Southwest 6 to 9 knots.

TIME (MST)      6 PM      9 PM      MIDNGT    3 AM
Sky (%).........73        66        52        49
Weather cov.....CHANCE    CHANCE    S CHC     CHANCE
Weather type....RNSHWR    RNSHWR    RNSHWR    RNSHWR
Tstm cov........CHANCE    S CHC     S CHC
CWR.............40        30        20        30
Temp............65        64        64        63
RH..............66        74        68        68
20 FT wind......W 3G8     W 3G7     SW 3G6    SW 3G6
Mix hgt (ft)....1100      600       1400      1000
Transport wind..SW 7      W 7       W 9       SW 8
Vrate kt-ft/1K..7         4         13        8
Ventrate Cat....POOR      POOR      MRGL      POOR

.FRIDAY...

Sky/weather.........Partly sunny then becoming mostly cloudy.
                    Thunderstorms likely in the morning. Showers
                    through the day. Thunderstorms in the
                    afternoon.
Chance of pcpn......40 percent increasing to 90 percent late in the
                    morning, then decreasing to 60 percent late in
                    the afternoon.
Max temperature.....68-71 degrees.
Min humidity........60-63 percent.
20-foot winds.......Southwest winds up to 5 mph. Gusty and erratic
                    winds expected near thunderstorms early in the
                    morning. Gusty and erratic winds expected near
                    thunderstorms late in the afternoon.
Smoke dispersal.....Poor (5300 knot-ft) early in the morning
                    increasing to marginal (15100 knot-ft) in the
                    afternoon increasing to marginal (14100
                    knot-ft) early in the morning increasing to
                    fair (22100 knot-ft) in the afternoon in the
                    late morning and afternoon.
Mixing height.......2200 ft AGL increasing to 4400 ft AGL in the
                    late morning and early afternoon, then
                    decreasing to 2400 ft AGL late in the
                    afternoon.
Transport winds.....Northeast around 7 knots shifting to the west
                    around 8 knots late in the afternoon.

TIME (MST)      6 AM      9 AM      NOON      3 PM
Sky (%).........58        58        90        90
Weather cov.....CHANCE    CHANCE    Definite    Definite
Weather type....RNSHWR    RNSHWR    RNSHWR    RNSHWR
Tstm cov........          S CHC     LIKELY    Definite
CWR.............40        40        90        90
Temp............62        62        67        68
RH..............71        75        67        61
20 FT wind......SW 3G6    S 3G7     SW 2G8    SW 3G10
Mix hgt (ft)....800       3000      4400      3100
Transport wind..NE 7      S 5       S 5       SW 6
Vrate kt-ft/1K..5         15        22        19
Ventrate Cat....POOR      MRGL      FAIR      MRGL

$$
Forecaster...Tetrault
Requested by...ROBINSON
Type of request...WILDFIRE
.TAG 2617449.0/TWC
.DELDT 07/15/26
.FormatterVersion 2.0.0
.EMAIL brian_robinson

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