247
FNUS73 KUNR 171143
FWSUNR

Spot Forecast for GPC Medevac Training...NPS
National Weather Service Rapid City SD
543 AM MDT Tue Jun 17 2025

Forecast is based on start time of 1415 MDT on June 17. If
conditions become unrepresentative, contact the National Weather
Service.

DISCUSSION...A disturbance will move into the region today and
support increasing chances for showers and thunderstorms, with
the best chance this afternoon. Locally heavy rain, gusty winds,
and small hail will be possible with the stronger cells. Showers
and storms will shift southeast and end this evening with skies
gradually clearing.

.TODAY...

Sky/weather.........Mostly cloudy (75-85 percent). Chance of rain
                    showers and slight chance of thunderstorms in
                    the morning, then showers and thunderstorms
                    likely in the afternoon.
Max temperature.....Around 69.
Min humidity........64 percent.
Wind (20 ft)........West winds around 5 mph shifting to the north
                    early in the morning, then shifting to the
                    northeast in the late morning and afternoon.
                    Gusts up to 15 mph. Gusty and erratic winds
                    expected near thunderstorms.
CWR.................55 percent.
Mixing height.......2800 to 3300 ft agl.
Transport winds.....North 10 to 15 mph shifting to the northeast in
                    the afternoon.
Smoke dispersal.....Poor.

TIME (MDT)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........80  77  74  70  75  80  85  85  85  85  83  82
Weather cov.....CHC CHC CHC CHC CHC CHC LKY LKY LKY LKY LKY LKY
Weather type....RW  RW  RW  RW  RW  RW  RW  RW  RW  RW  RW  RW
Tstm cov........SCH SCH SCH SCH SCH SCH LKY LKY LKY LKY LKY LKY
CWR.............60  60  60  60  60  60  60  60  60  60  60  60
Temp............55  57  60  61  63  64  66  67  67  67  67  67
RH..............83  78  72  72  71  69  67  68  68  68  65  66
20 FT wind dir..W   N   N   NE  NE  NE  E   NE  NE  N   NE  N
20 FT wind spd..3   5   5   6   7   7   7   7   7   7   6   6
20 FT wind gust.10  10  12  13  14  14  15  15  15  15  15  14
Mix hgt (kft)...0.6 0.8 1.4 2.0 2.3 2.7 2.9 3.0 2.8 3.3 2.6 2.3
Transp wind dir.N   N   N   N   N   NE  NE  NE  NE  N   N   N
Transp wind spd.9   9   10  12  12  13  13  14  14  13  13  12

$$
Forecaster...JC
Requested by...Ian Muirhead
Type of request...PRESCRIBED
.TAG 2516030.3/UNR
.DELDT 06/16/25
.FormatterVersion 2.0.0
.EMAIL ian_muirhead@nps.gov