927
FNUS75 KTWC 291239
FWSTWC

Spot Forecast for Harrington...BIA
National Weather Service Tucson AZ
539 AM MST Fri Aug 29 2025

Forecast is based on forecast start time of 0600 MST on August 29.

.DISCUSSION...

Partly cloudy this morning with a slight chance of a shower. Chances
increase for showers and thunderstorms this afternoon, however if clouds
linger then those chances may decrease. Winds will generally be light
and terrain driven, but gusty and erratic winds to 35 mph will be possible
near any thunderstorms. Moisture and minimum relative humidity comes down a
bit Saturday, additionally somewhat bringing thunderstorm chances down as well.
Moisture begins to return Sunday and especially early next week.

.TODAY...

Sky/weather.........Partly sunny. Slight chance of a shower in the
morning. Chance of showers and thunderstorms in
the afternoon.
Chance of pcpn......10 percent in the morning increasing to 50 percent
in the afternoon.
Max temperature.....79-82 degrees.
Min humidity........32-35 percent.
20-foot winds.......North winds up to 5 mph shifting to the west 5
                    to 7 mph early in the morning. Gusty and
                    erratic winds possible near thunderstorms.
Mixing height.......Increasing to 7600 ft AGL.
Transport winds.....West 7 to 10 knots.

TIME (MST)      6 AM      9 AM      NOON      3 PM
Sky (%).........66        44        70        73
Weather cov.....S CHC     S CHC     CHANCE    CHANCE
Weather type....RNSHWR    RNSHWR    RNSHWR    RNSHWR
Tstm cov........S CHC     S CHC     CHANCE    CHANCE
CWR.............10        10        40        50
Temp............54        70        77        76
RH..............80        47        35        33
20 FT wind......N 2G6     W 3G8     W 5G11    W 5G12
Mix hgt (ft)....500       3600      7300      6800
Transport wind..NW 7      W 8       W 8       NW 10

.TONIGHT...

Sky/weather.........Partly to mostly cloudy. Slight chance of showers and
                    thunderstorms in the evening.
Chance of pcpn......20 percent in the evening decreasing to 10 percent.
Min temperature.....52-55 degrees.
Max humidity........74-77 percent.
20-foot winds.......Northwest to north 5 to 7 mph Gusty and erratic winds
possible near thunderstorms in the evening.
Mixing height.......4300 ft AGL decreasing to 400 ft AGL.
Transport winds.....North 7 to 11 knots.

TIME (MST)      6 PM      9 PM      MIDNGT    3 AM
Sky (%).........48        52        39        49
Weather cov.....S CHC     S CHC
Weather type....RNSHWR    RNSHWR    NONE      NONE
Tstm cov........S CHC     S CHC
CWR.............20        10        10        10
Temp............74        64        60        57
RH..............36        53        60        68
20 FT wind......NW 5G12   N 4G8     N 3       N 3
Mix hgt (ft)....4300      400       500       500
Transport wind..N 11      NW 7      N 8       N 7

.SATURDAY...

Sky/weather.........Mostly sunny. Chance of showers and thunderstorms
in the afternoon.
Chance of pcpn......10 percent in the late morning increasing to 40
percent in the afternoon.
Max temperature.....80-83 degrees.
Min humidity........26-29 percent.
20-foot winds.......North 5 to 7 mph in the morning shifting to the west
in the afternoon. Gusty and erratic winds possible
                    thunderstorms.
Mixing height.......Increasing to 7500 ft AGL.
Transport winds.....Northeast 6 to 8 knots shifting to the west in the
afternoon.

TIME (MST)      6 AM      9 AM      NOON      3 PM
Sky (%).........53        20        62        62
Weather cov.....                    CHANCE    CHANCE
Weather type....NONE      NONE      RNSHWR    RNSHWR
Tstm cov........                    CHANCE    CHANCE
CWR.............0         10        40        40
Temp............53        71        78        78
RH..............75        39        28        27
20 FT wind......NE 2G6    N 2G6     W 3G8     W 3G10
Mix hgt (ft)....500       4500      7500      6400
Transport wind..NE 7      NE 5      W 6       W 8

$$
Forecaster...EDWARDS
Requested by...IC
Type of request...WILDFIRE
.TAG 2520567.5/TWC
.DELDT 08/29/25
.FormatterVersion 2.0.0
.EMAIL azphc@firenet.gov,charles.patterson@forestry.scat-nsn.gov

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