Spot Forecast
Issued by NWS Tucson, AZ

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FNUS75 KTWC 171425
FWSTWC

Spot Forecast for V1 Extraction Rx...US Army
National Weather Service Tucson AZ
725 AM MST Sun Mar 17 2024

Forecast is based on ignition time of 0900 MST on March 18.


.DISCUSSION...A weather system will remain over Arizona on Monday,
however the impacts look to stay to the north to northeast of the fire
site. At this time, precipitaiton chances on Monday are less than 10 percent.
Southeasterly winds during the morning will shift towards the south to
southwest in the afternoon with gusts to around 20 mph. Seasonable temperature
are expected with minimum RH values around 15 to 20 percent.

.MONDAY...

Sky/weather.........Mostly Sunny.
Chance of pcpn......10 percent.
LAL.................1.
Max temperature.....66-69 degrees.
Min humidity........16-19 percent.
20-foot winds.......Southeast winds 8 to 14 mph in the morning, shifting to the
                    south to southwest in the afternoon. Gusts up to around 20 mph.
Mixing height.......3300 ft AGL increasing to 11900 ft AGL
                    in the afternoon.
Transport winds.....Southeast 10 to 13 knots shifting to the south
                    13 to 15 knots in the afternoon.
Haines Index........2 to 3 or very low potential for large plume
                    dominated fire growth.

TIME (MST)      9 AM      NOON      3 PM
Sky (%).........10        26        26
Weather cov.....
Weather type....NONE      NONE      NONE
Tstm cov........
CWR.............0         10        10
LAL.............1         1         1
Temp............51        62        67
RH..............51        31        17
20 FT wind......SE 9G13   SE 12G17  S 10G14
Mix hgt (ft)....3300      9200      11000
Transport wind..E 10      S 13      S 14
Haines index....3         2         3

.MONDAY NIGHT...

Sky/weather.........Partly cloudy.
Chance of pcpn......0 percent.
LAL.................1.
Min temperature.....40-43 degrees.
Max humidity........73-76 percent.
20-foot winds.......West to Southwest winds 7 to 12 mph decreasing to 5 to 10
                    mph late in the evening, then shifting to the
                    southeast overnight.
Mixing height.......6100 ft AGL decreasing to 100 ft AGL.
Transport winds.....Southwest 11 to 13 knots shifting to the west 7
                    to 9 knots late in the evening, then shifting
                    to the southeast 4 to 6 knots overnight.
Haines Index........3 to 4 or very low to low potential for large
                    plume dominated fire growth.

TIME (MST)      6 PM      9 PM      MIDNGT    3 AM
Sky (%).........32        23        9         26
Weather cov.....
Weather type....NONE      NONE      NONE      NONE
Tstm cov........
CWR.............0         0         0         0
LAL.............1         1         1         1
Temp............62        52        47        42
RH..............22        42        55        69
20 FT wind......SW 10G14  W 10G14   SE 6G7    E 6G7
Mix hgt (ft)....6100      100       100       100
Transport wind..SW 13     W 11      SW 7      E 6
Haines index....3         3         4         4

.TUESDAY...

Sky/weather.........Sunny.
Chance of pcpn......0 percent.
LAL.................1.
Max temperature.....66-69 degrees.
Min humidity........17-20 percent.
20-foot winds.......Southeast winds 5 to 10 mph shifting to the
                    west 12 to 18 mph with gusts 20 to 25 mph in
                    the afternoon.
Mixing height.......800 ft AGL increasing to 9700 ft AGL.
Transport winds.....East 4 to 5 knots shifting to the southwest 6
                    to 13 knots in the late morning and early
                    afternoon, then shifting to the west 14 to 16
                    knots late in the afternoon.
Haines Index........2 to 4 or very low to low potential for large
                    plume dominated fire growth.

TIME (MST)      6 AM      9 AM      NOON      3 PM
Sky (%).........34        18        13        13
Weather cov.....
Weather type....NONE      NONE      NONE      NONE
Tstm cov........
CWR.............0         0         0         0
LAL.............1         1         1         1
Temp............42        52        64        67
RH..............74        49        25        18
20 FT wind......SE 4      SE 5G6    S 8G13    W 13G19
Mix hgt (ft)....300       2800      7800      9600
Transport wind..E 4       E 5       SW 9      W 14
Haines index....4         3         2         3

$$
Forecaster...LADER
Requested by...Shane Hall
Type of request...PRESCRIBED
.TAG 2407117.0/TWC
.DELDT 03/17/24
.FormatterVersion 2.0.0
.EMAIL shane.h.hall.civ@army.mil

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