Suppression Forecast
Issued by NWS Cheyenne, WY
Issued by NWS Cheyenne, WY
812
FNUS75 KCYS 031701
FWSCYS
Spot Forecast for Centennial Ridge...Casper Dispatch
National Weather Service Cheyenne WY
1101 AM MDT Sun Aug 3 2025
If conditions become unrepresentative, contact the National Weather
Service at (307) 772-2227
.DISCUSSION...
Storm development to the east of the Centennial Ridge may produce gusty winds up to 35 mph this late afternoon
and into the early evening. Storm development should stop by 7pm as most of the storms should be
pushed far enough east to not affect the Centennial Ridge. The rest of the week an upper level ridge will keep
RH values below 15 percent during the day with minimal recovery into the 20`s at night with poor smoke dispersal
in the evening to overnight hours. Winds should stay to the west at 10 to 15 mph with gusts up to 25 mph.
.REST OF TODAY...
Sky/weather.........Mostly sunny (25-35 percent).
CWR.................3 percent.
LAL.................
Max temperature.....Around 71.
Min humidity........18 percent.
Wind (20 ft)........Northwest winds 7 to 9 mph.
Mixing height.......11700 ft AGL.
Transport winds.....West 12 to 17 mph.
Smoke dispersal.....Good (94600 knot-ft) early in the morning
increasing to excellent (174900 knot-ft) in the
afternoon.
Haines Index........MISSING.
TIME (MDT) 5AM 6AM 7AM 8AM 9AM 10A 11A
Sky (%).........30 36 37 36 27 25 18
Weather cov.....
Weather type....
Tstm cov........
CWR.............0 0 0 0 0 0 0
LAL.............M M M M M M M
Temp............64 65 67 68 69 70 71
RH..............33 30 26 24 21 20 18
20 FT wind dir..NW NW NW NW NW NW W
20 FT wind spd..7 7 8 8 8 9 8
20 FT wind gust.12 14 15 15 16 16 15
Mix hgt (kft)...9.5 11 11 12 11 12 11
Transp wind dir.NW W W W W W W
Transp wind spd.12 14 13 15 17 17 17
Haines index....M M M M M M M
SDspl kt-ft/100095 128 123 153 171 175 167
.TONIGHT...
Sky/weather.........Mostly clear (10-20 percent).
CWR.................0 percent.
LAL.................
Min temperature.....Around 51.
Max humidity........43 percent.
Wind (20 ft)........Northwest winds 5 to 7 mph early in the evening
becoming light, then becoming southwest 5 to 7
mph overnight.
Mixing height.......8800 ft AGL decreasing to 300 ft AGL early in
the evening.
Transport winds.....West 7 to 16 mph decreasing to around 5 mph
late in the evening, then shifting to the
southwest 6 to 8 mph in the late evening and
overnight shifting to the west around 10 mph
after 3 am.
Smoke dispersal..... very good (114000 knot-ft) decreasing to poor
(1200 knot-ft) early in the evening.
Haines Index........MISSING.
TIME (MDT) 12P 1PM 2PM 3PM 4PM 5PM 6PM 7PM 8PM 9PM 10P 11P
Sky (%).........18 11 10 19 17 14 11 11 9 11 11 10
Weather cov.....
Weather type....
Tstm cov........
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
LAL.............M M M M M M M M M M M M
Temp............70 68 64 59 57 55 53 53 54 52 53 53
RH..............20 22 29 36 38 41 43 41 38 39 36 35
20 FT wind dir..NW NW NW NW W SW SW SW SW SW SW SW
20 FT wind spd..7 6 5 3 3 3 3 3 5 6 6 7
20 FT wind gust.13 10 8 7 7 6 7 7 8 9 10 12
Mix hgt (kft)...11 8.8 0.4 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3
Transp wind dir.W W W W S S S SW SW SW W W
Transp wind spd.16 15 7 5 6 7 7 7 8 8 10 10
Haines index....M M M M M M M M M M M M
SDspl kt-ft/1000149 114 3 1 2 2 2 2 2 2 3 3
.MONDAY...
Sky/weather.........Sunny (15-25 percent).
CWR.................1 percent.
LAL.................
Max temperature.....Around 78.
Min humidity........11 percent.
Wind (20 ft)........Southwest winds 6 to 10 mph.
Mixing height.......10100 ft AGL increasing to 14900 ft AGL in the
afternoon.
Transport winds.....West 12 to 21 mph increasing to 23 to 24 mph in
the afternoon.
Smoke dispersal.....Poor (3200 knot-ft) early in the morning
increasing to very good (101400 knot-ft) in the
afternoon increasing to excellent (266300
knot-ft).
Haines Index........MISSING.
TIME (MDT) MID 1AM 2AM 3AM 4AM 5AM 6AM 7AM 8AM 9AM 10A 11A
Sky (%).........12 12 5 3 6 9 12 14 16 19 26 35
Weather cov.....
Weather type....
Tstm cov........
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
LAL.............M M M M M M M M M M M M
Temp............52 54 58 63 69 72 75 76 77 78 77 76
RH..............35 32 29 25 20 16 14 13 12 11 11 11
20 FT wind dir..SW SW SW SW SW SW SW SW SW SW SW SW
20 FT wind spd..7 7 6 6 7 7 7 8 9 10 10 10
20 FT wind gust.12 12 10 10 12 13 14 15 17 18 18 18
Mix hgt (kft)...0.3 0.3 0.5 1.9 6.3 10 13 14 15 15 14 13
Transp wind dir.W W W SW W W W W W W W W
Transp wind spd.12 12 13 15 18 21 23 24 24 24 24 23
Haines index....M M M M M M M M M M M M
SDspl kt-ft/10003 3 6 24 101 181 254 301 312 308 298 266
$$
Forecaster...McLaughlin
Requested by...Casper Dispatch
Type of request...WILDFIRE
.TAG 2519145.0/CYS
.DELDT 08/03/25
.FormatterVersion 2.0.0
.EMAIL wycpc@firenet.gov