Spot Forecast
Issued by NWS Riverton, WY
Issued by NWS Riverton, WY
428
FNUS75 KRIW 071752
FWSRIW
Spot Forecast for SAR BATTLEPARK...BIG HORN COUNTY SHERIFFS OFFICE
National Weather Service Riverton WY
1152 AM MDT Sun Sep 7 2025
Forecast is based on forecast start time of 1200 MDT on September 07.
If conditions become unrepresentative, contact the National Weather
Service
.DISCUSSION...
A line of showers will cross Battle Park until 1300L Sunday, after
which time there could be a brief lull. Additional isolated showers
and thunderstorms develop after 1600L. These continue until around
sunset. A few showers may make their way across the Bighorn Basin
and into the western Bighorn Mountains early Monday morning.
Conditions gradually improve as Monday sunrise approaches. The
clearing sky will allow for temperatures to fall into the upper 30s,
and perhaps as low as 35. When combined with a light east downslope
wind off the higher peaks, wind chill readings will be around 30.
Conditions are dry with few clouds through midday Monday before
isolated showers develop along with additional cloud cover.
Overall, Monday is expected to be mostly dry.
...Thunderstorms imply strong gusty and erratic winds...
.REST OF TODAY...
Sky/weather.........Partly sunny (60-70 percent) with isolated
showers. A thunderstorm possible after 1500L.
Chance of pcpn......20 percent.
Chance of thunder...12 percent.
Max temperature.....Around 63.
Min humidity........26 to 29 percent.
Max apparent temp...63.
Surface winds (mph).West-northwest wind 8 to 11 mph with occasional
gusts around 15 mph. Possible outflow wind gusts
around 30 mph from late afternoon showers.
Wind (20 ft)........West-northwest 10 to 15 mph.
TIME (MDT) 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........80 75 75 65 55 50
Weather cov.....ISO ISO ISO ISO SCH SCH
Weather type....RW RW RW RW RW RW
Tstm cov........ ISO ISO ISO
Chc of pcpn (%).20 20 20 20 20 20
Chc of thdr (%).0 10 10 10 10 10
Temp............63 63 63 63 63 61
RH..............27 26 26 27 28 32
Wind chill (F)..M M M M M M
20 FT wind dir..W W W W W W
20 FT wind spd..7 7 7 6 6 5
20 FT wind gust.10 11 12 11 11 10
Surface wnd dir.W W W W W W
Surface wnd spd.9 9 9 8 8 6
Surface wnd gst.13 14 15 14 14 13
.TONIGHT...
Sky/weather.........Mostly cloudy (55-65 percent) with isolated
showers until 1930L. Another round of isolated
showers possible between midnight and 0300L,
then decreasing clouds.
Chance of pcpn......20 percent until 0300L.
Chance of thunder...10 percent until 1900L.
Min temperature.....37 to 40.
Max humidity........79 to 82 percent.
Min apparent temp...37.
Surface winds (mph).West wind 7 to 10 mph until 1900L, then becoming
east-northeast 5 to 8 mph by 2100L. Possible
outflow wind gusts around 30 mph from early
evening showers.
Wind (20 ft)........West wind around 10 mph until 1900L, then
gradually switching to the east-northeast
7 to 10 mph by 2100L.
TIME (MDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........45 50 50 50 55 60 65 55 45 30 30 30
Weather cov.....SCH SCH ISO ISO ISO
Weather type....RW RW RW RW RW
Tstm cov........ISO
Chc of pcpn (%).20 20 10 10 10 10 10 20 10 5 0 0
Chc of thdr (%).10 5 0 0 0 0 0 0 0 0 0 0
Temp............59 56 53 50 49 48 46 45 45 43 42 41
RH..............36 43 49 56 57 58 62 67 66 70 71 73
20 FT wind dir..W W N ENE ENE ENE ENE ENE ENE ENE E E
20 FT wind spd..5 5 5 5 5 5 5 4 4 3 3 3
20 FT wind gust.11 10 8 8 7 7 6 6 6 6 6 6
Surface wnd dir.W W N ENE ENE ENE ENE ENE ENE ENE E E
Surface wnd spd.6 6 6 6 6 6 6 5 5 4 4 4
Surface wnd gst.14 12 10 10 9 9 8 8 8 8 7 7
.MONDAY...
Sky/weather.........Mostly sunny (15-25 percent). Isolated
showers after 1500L.
Chance of pcpn......10 percent after 1300L, and mainly after 1500L.
Chance of thunder...5 percent after 1500L.
Max temperature.....Around 63.
Min humidity........24 to 27 percent.
Min apparent temp...37 before 0800L.
Surface winds (mph).Easterly 5 to 8 mph until 0800L, then
becoming west 7 to 10 mph by 1000L.
Westerly wind 9 to 13 mph with occasional
gusts around 18 mph after 1400L.
Wind (20 ft)........Easterly 6 to 10 mph until 0800L, then
gradually switching to the west 10 to 15 mph
by 1000L.
TIME (MDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........25 20 15 10 15 20 25 25 25 25 25 20
Weather cov..... ISO ISO ISO
Weather type.... RW RW RW
Tstm cov........
Chc of pcpn (%).0 0 0 0 0 0 0 5 5 10 10 10
Chc of thdr (%).0 0 0 0 0 0 0 0 0 5 5 10
Temp............41 41 45 52 55 58 61 61 63 63 63 60
RH..............72 74 68 54 46 42 37 35 30 27 26 27
20 FT wind dir..E E SE SW W W W W W W W W
20 FT wind spd..3 3 3 4 5 6 7 7 8 8 7 6
20 FT wind gust.6 6 6 6 8 10 13 13 14 14 14 13
Surface wnd dir.E E SE SW W W W W W W W W
Surface wnd spd.4 4 4 5 6 8 9 9 10 10 9 8
Surface wnd gst.8 7 7 8 10 13 16 16 18 18 17 16
.FORECAST DAYS 3 THROUGH 5...
.MONDAY NIGHT...
Partly cloudy. Perhaps a shower or two until sunset. Lows in
the upper 30s. East wind 5 to 10 mph.
.TUESDAY...
Partly cloudy. Highs in the mid 60s. Lows in the lower 40s.
Southerly wind around 10 mph.
.WEDNESDAY...
Mostly cloudy with a chance of afternoon showers and
thunderstorms. Highs in the mid 60s. Lows in the lower 40s.
Southwest wind 10 to 20 mph.
.THURSDAY...
Mostly cloudy with a chance of afternoon showers and
thunderstorms. Highs in the lower 60s. Lows in the lower 40s.
Southwest wind 15 to 25 mph.
$$
Forecaster...CNJ
Requested by...JEFF SCHMIDT
Type of request...SAR
.TAG 2521505.0/RIW
.DELDT 09/07/25
.FormatterVersion 2.0.0
.EMAIL JEFF.SCHMIDT@BIGHORNCOUNTYWY.GOV,DISPATCH@BHCOUNTY.COM