Spot Forecast
Issued by NWS Rapid City, SD

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988
FNUS73 KUNR 111129
FWSUNR

Spot Forecast for Antihorse RX Unit Quebec...USFS
National Weather Service Rapid City SD
429 AM MST Tue Nov 11 2025

Forecast is based on ignition time of 0600 MST on November 11.
If conditions become unrepresentative, contact the National Weather
Service.

.DISCUSSION...Winds today will be from the northwest at
10 to 20 mph, gusting to around 30 mph along the ridge tops.
Winds will decrease this evening (after 1800 MST) and become
predominately terrain influenced overnight. Humidities will
increase from around 30% this morning to 41 to 49% this afternoon.
Overnight humidities will recover to 75 percent with maximum
humidity reached at 0500 MST.

Winds will remain light and terrain driven through Wednesday with
afternoon humidities ranging from 41 to 48%.

Warm and dry weather is expected through the end of this week
with breezy conditions and chances for rain/snow increasing late
Friday into Saturday.

.TODAY...

Sky/weather.........Sunny (15-25 percent).
Max temperature.....Around 52.
Min humidity........41 to 49 percent.
Wind (20 ft)........Northwest winds 10 to 20 mph with gusts to
                    around 30 mph.
CWR.................0 percent.
Mixing height.......3100 to 3600 ft agl.
Transport winds.....Northwest 35 to 40 mph increasing to 40 to 45
                    mph late in the morning, then decreasing to 30
                    to 35 mph late in the afternoon decreasing to
                    around 25 mph late in the afternoon.
Smoke dispersal.....Very good decreasing to poor late in the
                    afternoon.

TIME (MST)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........32  30  22  14  8   5   5   9   14  15  16  19
Weather cov.....
Weather type....
Tstm cov........
CWR.............0   0   0   0   0   0   0   0   0   0   0   0
Temp............49  48  48  47  48  49  51  51  52  50  47  44
RH..............42  45  48  51  49  46  42  42  41  44  49  53
20 FT wind dir..N   NW  NW  NW  NW  NW  NW  NW  NW  NW  NW  NW
20 FT wind spd..10  12  13  14  15  16  16  16  15  14  12  10
20 FT wind gust.23  25  26  28  29  30  30  30  30  28  23  20
Mix hgt (kft)...0.6 0.7 1.1 1.9 2.6 3.0 3.3 3.4 3.6 3.0 1.3 0.9
Transp wind dir.NW  NW  NW  NW  NW  NW  NW  NW  NW  NW  NW  NW
Transp wind spd.33  35  36  38  40  43  43  41  38  33  28  23

.TONIGHT...

Sky/weather.........Mostly clear (20-30 percent).
Min temperature.....Around 35.
Max humidity........75 percent.
Wind (20 ft)........North winds 5 to 10 mph with gusts to around 18
                    mph decreasing to around 5 mph after 3 am.
CWR.................0 percent.
Mixing height.......500 to 1000 ft agl.
Transport winds.....Northwest 15 to 25 mph decreasing to 10 to 15
                    mph overnight.
Smoke dispersal.....Poor.

TIME (MST)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........15  18  21  17  13  9   12  16  14  16  23  38
Weather cov.....
Weather type....
Tstm cov........
CWR.............0   0   0   0   0   0   0   0   0   0   0   0
Temp............42  41  40  39  38  38  37  37  37  36  36  35
RH..............60  62  64  64  67  70  70  70  70  72  72  75
20 FT wind dir..NW  NW  N   N   N   N   N   N   N   N   N   N
20 FT wind spd..9   8   7   6   6   6   6   5   5   5   3   3
20 FT wind gust.18  17  16  14  13  12  10  9   9   8   8   8
Mix hgt (kft)...0.8 0.6 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5
Transp wind dir.NW  NW  NW  NW  NW  NW  NW  NW  NW  NW  NW  N
Transp wind spd.22  21  21  18  16  14  12  10  8   8   7   7

.WEDNESDAY...

Sky/weather.........Mostly sunny (25-35 percent).
Max temperature.....Around 53.
Min humidity........41 to 48 percent.
Wind (20 ft)........Light and predominately terrain-driven winds.
CWR.................0 percent.
Mixing height.......1800 to 2300 ft agl.
Transport winds.....Northwest around 10 mph shifting to the
                    southwest in the late morning and early
                    afternoon, then shifting to the north late in
                    the afternoon.
Smoke dispersal.....Poor.

TIME (MST)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........37  37  19  14  17  19  17  16  14  23  32  41
Weather cov.....
Weather type....
Tstm cov........
CWR.............0   0   0   0   0   0   0   0   0   0   0   0
Temp............37  38  41  46  49  51  52  53  53  51  49  47
RH..............70  67  65  51  46  44  42  41  42  44  48  52
20 FT wind dir..N   NE  NE  E   S   S   S   SW  SW  S   E   NE
20 FT wind spd..3   3   3   5   5   6   6   6   6   5   5   3
20 FT wind gust.7   7   7   8   10  12  13  13  13  12  9   8
Mix hgt (kft)...0.4 0.4 0.3 0.8 1.4 1.9 2.0 2.1 2.3 1.6 1.0 0.4
Transp wind dir.N   N   N   NW  W   SW  SW  SW  SW  W   N   N
Transp wind spd.7   6   6   7   9   10  12  12  12  10  8   7

$$
Forecaster...EW
Requested by...Hayden Hoelscher
Type of request...PRESCRIBED
.TAG 2525507.1/UNR
.DELDT 11/11/25
.FormatterVersion 2.0.0
.EMAIL hayden.hoelscher@usda.gov