205
FNUS73 KUNR 140024
FWSUNR

Spot Forecast for North Twin Creek...Casper Dispatch
National Weather Service Rapid City SD
624 PM MDT Wed Aug 13 2025

Forecast is based on forecast start time of 1900 MDT on August 13.
If conditions become unrepresentative, contact the National Weather
Service.

.DISCUSSION...
Dry conditions are expected the rest of the evening following
passage of the storms earlier. Highs are expected to continue
around 90 the next couple of days, with minimum relative
humidities around 20 percent. Winds will generally be out of the
southwest to west tonight, shifting to the northwest and north
during the day Thursday. Isolated thunderstorms may be possible
Thursday, however low chance of one going over the spot area.


.REST OF TONIGHT...

Sky/weather.........Partly cloudy (30-40 percent). Slight chance of
                    showers and thunderstorms early in the evening.
Min temperature.....Around 62.
Max humidity........56 percent.
Wind (20 ft)........West winds around 10 mph shifting to the south
                    early in the evening. Gusts up to 14 mph. Gusty
                    and erratic winds expected near thunderstorms
                    early in the evening.
CWR.................0 percent.
Mixing height.......500 to 1000 ft agl.
Transport winds.....West around 15 mph shifting to the south early
                    in the evening.
Smoke dispersal.....Poor.

TIME (MDT)      7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........33  32  31  37  42  48  43  37  32  26  20
Weather cov.....SCH
Weather type....RW
Tstm cov........SCH
CWR.............0   0   0   0   0   0   0   0   0   0   0
Temp............86  81  75  74  72  71  70  69  67  67  65
RH..............25  30  40  41  43  44  46  47  50  50  52
20 FT wind dir..W   SW  S   S   S   S   S   S   S   S   S
20 FT wind spd..6   6   6   6   6   7   7   8   8   8   8
20 FT wind gust.14  12  10  12  13  10  14  14  14  14  14
Mix hgt (kft)...2.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5
Transp wind dir.W   S   SE  S   S   S   S   S   S   S   SW
Transp wind spd.15  14  14  12  10  10  12  13  13  13  13

.THURSDAY...

Sky/weather.........Mostly sunny (20-30 percent).
Max temperature.....Around 92.
Min humidity........21 percent.
Wind (20 ft)........South winds around 10 mph shifting to the
                    northwest early in the morning, then shifting
                    to the north late in the morning becoming north
                    around 10 mph late in the afternoon. Gusts up
                    to 20 mph.
CWR.................0 percent.
Mixing height.......9100 to 9600 ft agl.
Transport winds.....Southwest around 15 mph shifting to the north
                    late in the afternoon.
Smoke dispersal.....Good increasing to excellent late in the
                    afternoon.

TIME (MDT)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........15  13  11  8   10  12  14  15  17  18  31  43
Weather cov.....
Weather type....
Tstm cov........
CWR.............0   0   0   0   0   0   0   0   0   0   0   0
Temp............63  66  71  76  83  84  88  89  91  92  90  90
RH..............56  52  44  39  30  28  24  24  21  21  22  21
20 FT wind dir..S   SW  W   NW  NW  NW  N   N   N   N   N   N
20 FT wind spd..7   7   7   9   10  10  10  10  10  10  10  10
20 FT wind gust.14  13  13  14  16  16  18  20  20  20  18  18
Mix hgt (kft)...0.5 0.5 0.7 1.5 2.3 3.1 4.1 5.4 7.5 9.6 8.8 8.0
Transp wind dir.SW  SW  W   W   NW  NW  NW  NW  NW  NW  NW  N
Transp wind spd.13  14  15  16  17  17  17  17  18  18  17  17

$$
Forecaster...AD
Requested by...Cristopf Atkinson
Type of request...WILDFIRE
.TAG 2519859.0/UNR
.DELDT 08/13/25
.FormatterVersion 2.0.0
.EMAIL wycpc@firenet.gov