Spot Forecast
Issued by NWS Tucson, AZ

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580
FNUS75 KTWC 140256
FWSTWC

Spot Forecast for Buckhorn Fire...AZ-SCA
National Weather Service Tucson AZ
756 PM MST Sat Jul 13 2024

Forecast is based on forecast start time of 0600 MST on July 14.

.DISCUSSION...

Chance for thunderstorms and showers to develop in the early afternoon
to evening hours, roughly between 1400 MST to 2100 MST Sunday. Storms are
expected to develop over the White Mountains and will generally move to the
southeast. With thunderstorms at or near the fire location, gusty and
erratic outflow winds in excess of 50 MPH are possible with frequent
lightning and locally heavy rainfall.

Sunday, high temperatures will be around 90-95 degrees with minimum RH of
15-20 percent. Winds will be from the northeast at 5-10 MPH in the early
morning shifting to the southwest in the late morning to early afternoon hours.
In the late afternoon to evening hours, wind will be from the northwest at 5-10
MPH. Overnight lows will be around 55-60 degrees with maximum RH of 65-70
percent.

Monday, there is a chance for thunderstorms to develop in the afternoon to
evening hours. General timing of storms is between 1300 MST to 2100 MST.
With thunderstorms at or near the fire location, gusty and erratic outflow
winds in excess of 50 MPH are possible with frequent lightning and locally
heavy rainfall. High temperatures of 85-90 degrees and minimum RH of 25-30
percent are forecast. Winds will generally be from the northwest at 5-10 MPH.

.SUNDAY...

Sky/weather.........Sunny then becoming mostly cloudy. Chance of showers
and thunderstorms likely in the early afternoon to late
evening.
Chance of pcpn......0 percent increasing to 50 percent late in the
                    morning, then increasing to 70 percent late in
                    the afternoon decreasing to 60 percent late in
                    the afternoon.
LAL.................1 until 1100, then 3 until 1400, then 4.
Max temperature.....89-92 degrees.
Min humidity........17-20 percent.
20-foot winds.......Northeast winds up to 5 mph shifting to the
                    southwest 5 to 7 mph in the late morning and
                    early afternoon, then shifting to the northwest
                    5 to 9 mph late in the afternoon. Gusty and
                    erratic winds expected near thunderstorms late
                    in the morning.
Haines Index........3 to 5 or very low to moderate potential for
                    large plume dominated fire growth.
Mixing height.......2900 ft AGL increasing to 4300 ft AGL early in
                    the morning, then increasing to 12100 ft AGL
                    decreasing to 8200 ft AGL late in the afternoon
                    decreasing to 400 ft AGL.
Transport winds.....Northeast 5 to 6 knots then shifting to the east
8 to 10 knots in the late morning and early
afternoon shifting to the northwest
                    around 10 knots late in the afternoon.

TIME (MST)      6 AM      9 AM      NOON      3 PM
Sky (%).........10        4         78        78
Weather cov.....                    CHANCE    LIKELY
Weather type....NONE      NONE      RNSHWR    RNSHWR
Tstm cov........                    CHANCE    LIKELY
CWR.............0         0         50        70
LAL.............1         1         3         4
Temp............62        79        87        86
RH..............45        25        18        21
20 FT wind......NE 3G6    SW 3G7    S 4G10    SW 5G10
Mix hgt (ft)....1500      6700      11800     8200
Transport wind..NE 6      N 7       E 10      W 10
Haines index....4         4         5         4

.SUNDAY NIGHT...

Sky/weather.........Mostly cloudy then becoming partly cloudy.
                    Showers and thunderstorms likely in the
                    evening, then slight chance of showers and
                    thunderstorms overnight.
Chance of pcpn......60 percent decreasing to 0 percent.
LAL.................4 until 2000, then 3 until 2300, then 2 until
                    0500, then 1.
Min temperature.....59-62 degrees.
Max humidity........67-70 percent.
20-foot winds.......Northwest winds up to 5 mph shifting to the
                    north late in the evening. Gusty and erratic
                    winds expected near thunderstorms.
Haines Index........3 or very low potential for large plume
                    dominated fire growth.
Mixing height.......100 ft AGL.
Transport winds.....Northwest 9 to 10 knots shifting to the north
                    early in the evening.

TIME (MST)      6 PM      9 PM      MIDNGT    3 AM
Sky (%).........78        78        45
                    decreasing to 3800 ft AGL         45
Weather cov.....LIKELY    LIKELY    S CHC     S CHC
Weather type....RNSHWR    RNSHWR    RNSHWR    RNSHWR
Tstm cov........LIKELY    CHANCE    S CHC     S CHC
CWR.............60        60        20        20
LAL.............4         3         2         2
Temp............78        69        66        61
RH..............32        47        56        66
20 FT wind......NW 3G10   N 3G10    N 3G10    N 3G8
Mix hgt (ft)....300       100       100       100
Transport wind..NW 9      NW 9      N 10      N 10
Haines index....3         3         3         3

.MONDAY...

Sky/weather.........Mostly sunny then becoming mostly cloudy.
                    Showers late in the morning. Thunderstorms
                    and showers likely late in the afternoon.
Chance of pcpn......0 percent increasing to 80 percent late in the
                    morning, then decreasing to 70 percent late in
                    the afternoon.
LAL.................1 until 1100, then 4.
Max temperature.....86-89 degrees.
Min humidity........24-27 percent.
20-foot winds.......Northwest winds 5 to 6 mph increasing to 5 to 9
                    mph in the late morning and afternoon. Gusty
                    and erratic winds expected near thunderstorms.
Haines Index........3 to 4 or very low to low potential for large
                    plume dominated fire growth.
Mixing height.......2300 ft AGL increasing to 11400 ft AGL
                    late in the morning decreasing to 6500 ft AGL
late in the afternoon decreasing to 1100 ft
                    AGL late in the afternoon.
Transport winds.....North 6 to 9 knots shifting to the northwest
                    around 10 knots early in the afternoon, then
                    shifting to the north late in the afternoon.

TIME (MST)      6 AM      9 AM      NOON      3 PM
Sky (%).........23        26        90        90
Weather cov.....                    DEFNTE    DEFNTE
Weather type....NONE      NONE      RNSHWR    RNSHWR
Tstm cov........                    LIKELY    LIKELY
CWR.............0         0         80        80
LAL.............1         1         4         4
Temp............63        77        86        84
RH..............61        36        25        28
20 FT wind......N 3G8     NW 4G10   NW 5G11   NW 5G11
Mix hgt (ft)....800       5300      10700     6500
Transport wind..N 8       NE 7      N 9       NW 10
Haines index....3         3         4         3

$$
Forecaster...MALARKEY
Requested by...Daniel Pearson
Type of request...WILDFIRE
.TAG 2417993.0/TWC
.DELDT 07/13/24
.FormatterVersion 2.0.0
.EMAIL daniel_pearson@nps.gov

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