083
FNUS75 KTWC 181028
FWSTWC

Spot Forecast for EMPIRE...USFS
National Weather Service Tucson AZ
328 AM MST Fri Apr 18 2025

Forecast is based on forecast start time of 0600 MST on April 18.

.DISCUSSION...A weather system moving across the northern part of
Arizona will help bring cooler temperatures and some additional
moisture to the wildifre site today. The additional moisture (in
combination with cooler temperatures) will result in an uptick in
minimum relative humidity values above 20 percent this
afternoon. Winds will remain breezy today with afternoon wind
speeds approaching critical levels. The aforementioned weather
system will also result in the chance for some light showers tonight
into Saturday morning.

.TODAY...

Sky/weather.........Mostly Sunny.
Chance of pcpn......0 percent.
Max temperature.....65-68 degrees.
Min humidity........22-25 percent.
20-foot winds.......Southwest winds 6 to 12 mph through 0900,
                    increasing to 10 to 20 mph with gusts to
                    around 30 mph this afternoon.
Mixing height.......2700 ft AGL increasing to 7000 ft AGL.
Transport winds.....Southwest 8 to 16 knots increasing to 18 to 23
                    knots in the late morning and afternoon.

TIME (MST)      6 AM      9 AM      NOON      3 PM
Sky (%).........23        4         1         3
Weather cov.....                              PATCHY
Weather type....NONE      NONE      NONE      BLDUST
Tstm cov........
CWR.............0         0         0         0
Temp............39        56        64        66
RH..............73        40        24        23
20 FT wind......SW 7G11   SW 12G20  SW 17G26  SW 17G29
Mix hgt (ft)....1000      3700      6200      6900
Transport wind..SW 8      SW 18     SW 19     SW 23

.TONIGHT...

Sky/weather.........Partly cloudy then becoming mostly cloudy with
                    a 30 percent chance of rain mainly after midnight.
Chance of pcpn......10 percent in the evening, increasing to 30 percent overnight.
Min temperature.....36-39 degrees.
Max humidity........86-89 percent.
20-foot winds.......Southwest winds 10 to 15 mph with gusts to
                    around 25 mph until 2000.
Mixing height.......4600 ft AGL decreasing to 100 ft AGL.
Transport winds.....Southwest 13 to 21 knots shifting to the west 9
                    to 12 knots in the late evening and overnight.

TIME (MST)      6 PM      9 PM      MIDNGT    3 AM
Sky (%).........4         5         35        35
Weather cov.....                    S CHC     S CHC
Weather type....NONE      NONE      RNSHWR    RNSHWR
Tstm cov........
CWR.............10        10        20        20
Temp............61        52        45        41
RH..............30        47        60        77
20 FT wind......W 15G26   SW 12G23  SW 8G14   W 6G10
Mix hgt (ft)....4600      300       200       200
Transport wind..SW 21     W 13      W 11      W 10

.SATURDAY...

Sky/weather.........Partly sunny in the morning then becoming sunny
                    in the afternoon. Chance of rain showers in the morning.
Chance of pcpn......30 percent in the morning.
Max temperature.....63-66 degrees.
Min humidity........13-16 percent.
20-foot winds.......Southwest winds 5 to 10 mph shifting to the
                    northwest 10 to 15 mph with gusts to around 25
                    mph from late morning through afternoon.
Mixing height.......3800 ft AGL increasing to 6600 ft AGL early in
                    the morning, then increasing to 9400 ft AGL in
                    the late morning and afternoon decreasing to
                    7300 ft AGL late in the afternoon.
Transport winds.....West 9 to 18 knots increasing to 17 to 20 knots
                    in the late morning and afternoon.

TIME (MST)      6 AM      9 AM      NOON      3 PM
Sky (%).........55        55        12        5
Weather cov.....CHANCE    CHANCE
Weather type....RNSHWR    RNSHWR    NONE      NONE
Tstm cov........
CWR.............30        30        0         0
Temp............38        55        61        64
RH..............87        42        22        14
20 FT wind......SW 5G8    W 8G14    W 12G21   NW 13G23
Mix hgt (ft)....1900      6600      8900      8700
Transport wind..W 9       W 18      W 20      W 19

$$
Forecaster...LADER
Requested by...TUCSON DISPATCH
Type of request...WILDFIRE
.TAG 2510956.0/TWC
.DELDT 04/18/25
.FormatterVersion 2.0.0
.EMAIL aztdc@firenet.gov,imason@blm.gov

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