895
FNUS75 KCYS 032147
FWSCYS

Spot Forecast for Platte County I-25...Platte county Fire
National Weather Service Cheyenne WY
347 PM MDT Thu Jul 3 2025

If conditions become unrepresentative, contact the National Weather
Service at (307) 772-2227

.DISCUSSION...

Hot and dry weather with breezy southeast winds will quickly change
this evening as moisture increases from the west and winds turn to
the northwest behind a cool front. There will be a chance for
scattered showers or storms nearby for the entire forecast period,
with multiple rounds possible. The best chance for wetting rainfall
will be with stronger thunderstorms Friday afternoon and evening.

Gusty and erratic winds will be possible
in and near this activity. Overall, southeast winds this afternoon
will transition to northwest this evening, and remain northwest into
Friday. Gusts up to 30 mph are expected late tonight or early Friday
morning, before gradually weakening on Friday, aside from any boost
from thunderstorm activity.

.REST OF TODAY...

Sky/weather.........Mostly sunny (45-55 percent). Slight chance of
                    showers and thunderstorms.
CWR.................5 percent.
LAL.................
Max temperature.....93 to 98 degrees.
Min humidity........15 to 17 percent.
Wind (20 ft)........Southeast winds at 10 to 20 mph with gusts up to 30
                    mph. Gusty and erratic
                    winds expected near thunderstorms.
Mixing height.......12100 ft AGL.
Transport winds.....South around 16 mph.
Smoke dispersal..... very good (146400 knot-ft) early in the
                    morning increasing to excellent (169800
                    knot-ft) in the afternoon.
Haines Index........MISSING.

TIME (MDT)      4PM 5PM
Sky (%).........50  50
Weather cov.....SCH SCH
Weather type....RW  RW
Tstm cov........SCH SCH
CWR.............10  10
LAL.............M   M
Temp............92  90
RH..............19  21
20 FT wind dir..SE  S
20 FT wind spd..15  15
20 FT wind gust.28  26
Mix hgt (kft)...12  11
Transp wind dir.S   S
Transp wind spd.16  16
Haines index....M   M
SDspl kt-ft/1000170 146

.TONIGHT...

Sky/weather.........Mostly cloudy (75-85 percent). Slight chance of
                    showers and thunderstorms.
CWR.................6 percent.
LAL.................
Min temperature.....Around 64.
Max humidity........70 to 75 percent.
Wind (20 ft)........South winds around 10 to 15 mph shifting to the
                    northwest at 10 to 15 mph in the evening.
                    Gusty and erratic winds expected
                    near thunderstorms. Northwest winds overnight may
                    gust 25 to 30 mph at times.
Mixing height.......500 ft AGL.
Transport winds.....Southwest 16 to 20 mph shifting to the
                    northwest 14 to 22 mph in the late evening and
                    overnight.
Smoke dispersal..... very good (105500 knot-ft) early in the
                    evening decreasing to poor (6300 knot-ft) late
                    in the night.
Haines Index........MISSING.

TIME (MDT)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........76  76  76  81  81  81  79  79  79  82  82  82
Weather cov.....SCH SCH SCH SCH SCH SCH SCH SCH SCH CHC CHC CHC
Weather type....RW  RW  RW  RW  RW  RW  RW  RW  RW  RW  RW  RW
Tstm cov........SCH SCH SCH
CWR.............10  10  10  10  10  10  10  10  10  10  10  10
LAL.............M   M   M   M   M   M   M   M   M   M   M   M
Temp............87  85  82  78  77  73  72  70  69  68  66  66
RH..............24  28  32  39  42  49  53  57  59  61  68  68
20 FT wind dir..SW  SW  W   W   W   NW  NW  NW  NW  NW  NW  W
20 FT wind spd..9   9   9   10  10  12  12  12  10  9   9   9
20 FT wind gust.17  17  17  17  18  20  21  20  18  17  17  17
Mix hgt (kft)...7.0 4.2 0.5 0.9 0.7 0.8 0.8 0.8 0.7 0.5 0.5 0.5
Transp wind dir.S   SW  SW  W   NW  NW  NW  NW  NW  NW  NW  NW
Transp wind spd.17  20  16  22  20  22  21  18  16  18  16  14
Haines index....M   M   M   M   M   M   M   M   M   M   M   M
SDspl kt-ft/1000106 72  7   18  12  16  14  12  10  8   7   6

.INDEPENDENCE DAY...

Sky/weather.........Partly sunny (55-65 percent). Chance of showers
                    in the morning, then chance of showers and
                    thunderstorms in the afternoon.
CWR.................14 percent.
LAL.................
Max temperature.....Around 84.
Min humidity........32 to 37 percent.
Wind (20 ft)........Northwest winds 7 to 12 mph gusting to 20 mph.
                    Gusty and erratic
                    winds expected near thunderstorms in the
                    afternoon.
Mixing height.......6900 ft AGL.
Transport winds.....Northwest 12 to 17 mph.
Smoke dispersal.....Poor (6300 knot-ft) early in the morning
                    increasing to very good (101300 knot-ft) in the
                    afternoon.
Haines Index........MISSING.

TIME (MDT)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........79  79  79  55  55  55  52  52  52  39  39  39
Weather cov.....CHC CHC CHC SCH SCH SCH CHC CHC CHC CHC CHC CHC
Weather type....RW  RW  RW  RW  RW  RW  RW  RW  RW  RW  RW  RW
Tstm cov........                        CHC CHC CHC CHC CHC CHC
CWR.............10  10  10  10  10  10  10  10  10  10  10  10
LAL.............M   M   M   M   M   M   M   M   M   M   M   M
Temp............64  66  66  68  72  75  77  80  80  82  83  82
RH..............73  70  70  65  55  48  45  39  39  37  36  37
20 FT wind dir..W   NW  NW  NW  NW  NW  NW  NW  NW  NW  N   N
20 FT wind spd..9   9   8   8   7   7   7   7   7   7   8   9
20 FT wind gust.17  16  15  14  14  14  14  14  14  14  15  16
Mix hgt (kft)...0.6 1.4 2.1 3.4 4.4 5.2 6.8 6.5 6.7 6.9 6.9 6.6
Transp wind dir.NW  NW  NW  NW  NW  NW  NW  NW  NW  NW  NW  NW
Transp wind spd.12  13  15  16  14  16  17  17  16  15  13  12
Haines index....M   M   M   M   M   M   M   M   M   M   M   M
SDspl kt-ft/10006   15  27  48  52  72  101 98  94  90  76  66

$$
Forecaster...Natoli
Requested by...M. Walkabout
Type of request...WILDFIRE
.TAG 2517244.0/CYS
.DELDT 07/03/25
.FormatterVersion 2.0.0
.EMAIL mkwalkabout@gmail.com