253
FNUS75 KTFX 261258
FWSTFX

Spot Forecast for 2025 Last Chance Stampede Fair and Rodeo...Lewis and Clark County Emergency Management
National Weather Service Great Falls MT
658 AM MDT Sat Jul 26 2025

Forecast is based on forecast start time of 0800 MDT on July 26.
If conditions become unrepresentative...contact the National Weather
Service.

...Gusty and erratic winds and lightning possible with thunderstorms
   this afternoon and evening...

.DISCUSSION...

Showers and thunderstorms develop again this afternoon and track
through central MT late this afternoon and evening (4pm - 9 pm).
Strong winds gusts and lightning are the primary hazards with a
few storms this afternoon also able to produce brief heavy
rainfall. There is a 60-70% risk of wind gusts in excess of 40 mph
near storms today with a 10% risk of gusts in excess of 50 mph.

.REST OF TODAY...

Sky/weather.........Sunny (20-30 percent) then becoming partly
                    sunny (65-75 percent). Chance of showers and
                    thunderstorms late in the afternoon.
Chance of pcpn......40 percent.
Chance of lightning.30 percent.
Max temperature.....86-91.
Surface winds (mph).Light winds becoming southeast in the afternoon.
Pcpn amount.........0.03 inches.

TIME (MDT)      8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........7   4   9   16  17  15  23  43  68  70
Weather cov.....                            SCH SCH CHC
Weather type....                            RW  RW  RW
Tstm cov........                            SCH SCH CHC
Chc of pcpn (%).0   0   0   0   10  10  10  20  20  40
Chc of ltng (%).0   0   0   0   10  10  10  20  20  30
Temp............61  65  71  76  81  83  85  87  85  84
Surface wnd dir.N   NE  E   NE  NE  NE  NE  NE  SE  SW
Surface wnd spd.0   0   0   0   5   5   5   5   10  10
Surface wnd gst.5   5   5   10  10  15  15  15  15  20

.TONIGHT...

Sky/weather.........Mostly cloudy (70-80 percent) then becoming
                    mostly clear (20-30 percent). Chance of showers
                    and thunderstorms in the evening.
Chance of pcpn......40 percent.
Chance of lightning.28 percent.
Min temperature.....52-57.
Surface winds (mph).Southwest winds 5 to 10 mph becoming light.
Pcpn amount.........0.01 inches.

TIME (MDT)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........76  83  85  82  88  79  59  32  27  23  18  18
Weather cov.....CHC SCH SCH SCH                 ARS ARS ARS ARS
Weather type....RW  RW  RW  RW                  SMK SMK SMK SMK
Tstm cov........CHC SCH SCH
Chc of pcpn (%).40  20  20  20  10  0   0   0   0   0   0   0
Chc of ltng (%).30  20  20  10  10  0   0   0   0   0   0   0
Temp............80  76  73  71  68  66  65  63  61  59  57  56
Surface wnd dir.W   W   W   SW  SW  SW  SW  SW  SW  W   W   W
Surface wnd spd.10  10  5   10  5   5   5   5   5   0   0   0
Surface wnd gst.20  15  15  15  15  10  10  10      5   5   5

.SUNDAY...

Sky/weather.........Sunny (20-30 percent) then becoming partly
                    sunny (50-60 percent). Chance of showers and
                    thunderstorms in the afternoon.
Chance of pcpn......30 percent.
Chance of lightning.30 percent.
Max temperature.....84-89.
Surface winds (mph).Light winds becoming northeast around 5 mph in
                    the afternoon.
Pcpn amount.........0.14 inches.

TIME (MDT)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........16  41  22  8   20  24  53  53  53  53  53  53
Weather cov.....ARS ARS DEF DEF         CHC CHC CHC CHC CHC CHC
Weather type....SMK SMK HAZ HAZ         RW  RW  RW  RW  RW  RW
Tstm cov........                        CHC CHC CHC CHC CHC CHC
Chc of pcpn (%).0   0   0   0   0   0   30  30  30  30  30  30
Chc of ltng (%).0   0   0   0   0   0   30  30  30  30  30  30
Temp............55  57  60  64  70  75  79  83  85  85  85  83
Surface wnd dir.W   W   N   N   N   NE  NE  NE  NE  N   N   N
Surface wnd spd.0   0   0   0   0   0   5   5   5   5   5   5
Surface wnd gst.5   5       5   5   5   10  10  10  15  15  15


$$

Forecaster...Moldan
Requested by...Autumn Ashdale
Type of request...OTHER
.TAG 2518373.4/TFX
.DELDT 07/26/25
.FormatterVersion 2.0.0
.EMAIL cody.moldan@noaa.gov, austin.mcdowell@noaa.gov