854
FNUS75 KCYS 282230
FWSCYS
SPOT FORECAST FOR BALD FIRE...CASPER INTERAGENCY DISPATCH CENTER
NATIONAL WEATHER SERVICE CHEYENNE WY
430 PM MDT FRI AUG 28 2026
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER
SERVICE AT (307) 772-2227
DISCUSSION
NO ISSUES OVERNIGHT AS WINDS WILL DIMINISH AND RAIN CHANCES COME
TO AN END. HOWEVER, SATURDAY LOOKS LIKE AN ACTIVE DAY WITH THE
POSSIBILITY OF MULTIPLE ROUNDS OF PRECIPITATION IN THE AFTERNOON
WITH GOOD COVERAGE AS A PUSH OF MONSOONAL MOISTURE ARRIVES INTO
THE CWA. WITH THE PROPER ATMOSPHERIC PARAMETERS IN PLACE, STRONG
TO SEVERE WIND GUSTS WILL BE THE PRIMARY THREAT IN ANY SHOWER
AND/OR STORM. THERE WILL BE A SECOND ROUND OF SHOWERS AND STORMS
WITH A SECOND WAVE THAT PUSHES THROUGH LATER IN THE EVENING, THIS
WILL BE MORE STRATIFORM IN NATURE. MODERATE TO HEAVY RAIN CAN BE
EXPECTED WITH THE MONSOON PUSH, HENCE AROUND A 25 PERCENT OF
WETTING RAINS, WITH MOST OF THE ACTIVITY DIEING DOWN BEFORE
MIDNIGHT. ADDITIONAL MOISTURE CHANCES ARE POSSIBLE SUNDAY ALONG
WITH GUSTY WINDS.
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY (60-70 PERCENT).
CWR.................4 PERCENT.
MIN TEMPERATURE.....AROUND 57.
MAX HUMIDITY........59 PERCENT.
WIND (20 FT)........WEST WINDS 8 TO 17 MPH WITH GUSTS TO AROUND 33
MPH DECREASING TO AROUND 7 MPH AFTER 3 AM.
MIXING HEIGHT.......600 FT AGL.
TRANSPORT WINDS.....WEST 17 TO 25 MPH DECREASING TO 13 TO 15 MPH IN
THE LATE EVENING AND OVERNIGHT.
SMOKE DISPERSAL..... VERY GOOD (113800 KNOT-FT) EARLY IN THE
EVENING DECREASING TO POOR (18400 KNOT-FT) LATE
IN THE NIGHT DECREASING TO POOR (6200 KNOT-FT)
IN THE LATE EVENING AND OVERNIGHT.
TIME (MDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........72 76 75 65 67 67 69 66 64 61 65 54
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
TEMP............69 68 65 64 63 62 61 61 60 59 59 58
RH..............32 33 37 41 43 44 50 50 49 51 51 55
20 FT WIND DIR..W W W W W W SW W W W W W
20 FT WIND SPD..17 16 16 14 12 12 9 8 8 7 7 7
20 FT WIND GUST.33 31 29 26 23 21 18 16 15 14 14 15
MIX HGT (KFT)...5.2 2.9 1.1 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6
TRANSP WIND DIR.W W W SW SW SW SW W W W W W
TRANSP WIND SPD.25 21 20 17 15 15 13 13 13 14 14 13
SDSPL KT-FT/1000114 52 18 9 8 8 6 6 7 7 7 6
SATURDAY
SKY/WEATHER.........MOSTLY SUNNY (35-45 PERCENT) THEN BECOMING
MOSTLY CLOUDY (70-80 PERCENT). SLIGHT CHANCE OF
THUNDERSTORMS AND A CHANCE OF RAIN SHOWERS IN
THE AFTERNOON.
CWR.................4 PERCENT INCREASING TO 26 PERCENT IN THE
AFTERNOON.
MAX TEMPERATURE.....AROUND 70.
MIN HUMIDITY........36 PERCENT.
WIND (20 FT)........WEST WINDS 8 TO 17 MPH WITH GUSTS TO AROUND 33
MPH INCREASING TO 21 TO 23 MPH WITH GUSTS TO
AROUND 44 MPH IN THE AFTERNOON. GUSTY AND
ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS.
MIXING HEIGHT.......7500 FT AGL.
TRANSPORT WINDS.....WEST 12 TO 20 MPH INCREASING TO SOUTHWEST 24 TO
33 MPH IN THE LATE MORNING AND AFTERNOON.
SMOKE DISPERSAL.....POOR (5600 KNOT-FT) EARLY IN THE MORNING
INCREASING TO GOOD (71900 KNOT-FT) IN THE
AFTERNOON INCREASING TO VERY GOOD (115000
KNOT-FT) EARLY IN THE MORNING INCREASING TO
EXCELLENT (201800 KNOT-FT) IN THE AFTERNOON
LATE IN THE MORNING.
TIME (MDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........51 55 38 30 27 31 35 48 70 84 73 71
WEATHER COV..... CHC CHC CHC CHC CHC CHC
WEATHER TYPE.... RW RW RW RW RW RW
TSTM COV........ SCH SCH SCH CHC CHC CHC
CWR.............0 0 0 0 0 0 30 30 30 30 30 30
TEMP............57 57 60 61 64 66 68 70 68 67 66 65
RH..............59 57 53 51 48 43 39 36 39 36 40 43
20 FT WIND DIR..W W W W W W W W W W W W
20 FT WIND SPD..8 9 10 12 14 16 17 21 22 23 22 21
20 FT WIND GUST.15 17 20 23 26 30 33 38 41 44 43 38
MIX HGT (KFT)...0.6 0.6 0.9 2.0 3.4 5.5 6.5 7.5 6.9 6.4 5.5 4.4
TRANSP WIND DIR.W W W SW SW SW SW W SW W W W
TRANSP WIND SPD.12 13 14 20 24 29 33 31 30 31 30 30
SDSPL KT-FT/10006 7 10 34 72 136 190 202 178 172 144 115
SATURDAY NIGHT
SKY/WEATHER.........MOSTLY CLOUDY (65-75 PERCENT). SLIGHT CHANCE OF
THUNDERSTORMS EARLY IN THE EVENING. CHANCE OF
RAIN SHOWERS IN THE EVENING.
CWR.................17 PERCENT DECREASING TO 3 PERCENT OVERNIGHT.
MIN TEMPERATURE.....AROUND 52.
MAX HUMIDITY........77 PERCENT.
WIND (20 FT)........SOUTHWEST WINDS 12 TO 18 MPH. GUSTS UP TO 35
MPH EARLY IN THE EVENING. GUSTY AND ERRATIC
WINDS EXPECTED NEAR THUNDERSTORMS EARLY IN THE
EVENING.
MIXING HEIGHT.......600 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 16 TO 24 MPH.
SMOKE DISPERSAL.....GOOD (89900 KNOT-FT) EARLY IN THE EVENING
DECREASING TO POOR (8600 KNOT-FT) LATE IN THE
NIGHT.
TIME (MDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........69 77 74 74 78 71 61 59 58 68 68 63
WEATHER COV.....CHC CHC CHC CHC CHC CHC
WEATHER TYPE....RW RW RW RW RW RW
TSTM COV........SCH SCH SCH
CWR.............20 20 20 20 20 20 0 0 0 0 0 0
TEMP............63 62 59 58 57 56 55 55 54 54 54 54
RH..............48 52 60 64 62 64 66 66 71 71 69 69
20 FT WIND DIR..W W W W SW SW SW SW SW SW SW SW
20 FT WIND SPD..18 16 15 14 12 12 12 12 12 12 13 14
20 FT WIND GUST.35 31 28 25 23 21 21 21 21 22 24 26
MIX HGT (KFT)...4.3 3.6 1.3 0.7 0.9 1.0 0.7 0.7 0.6 0.6 0.6 0.7
TRANSP WIND DIR.W W SW SW SW SW SW SW SW SW SW SW
TRANSP WIND SPD.24 21 20 20 17 17 16 17 17 17 18 18
SDSPL KT-FT/100090 64 21 12 14 14 10 10 10 9 10 11
SUNDAY
SKY/WEATHER.........PARTLY SUNNY (50-60 PERCENT). SLIGHT CHANCE OF
RAIN SHOWERS IN THE MORNING, THEN CHANCE OF
SHOWERS AND THUNDERSTORMS IN THE AFTERNOON.
CWR.................10 PERCENT.
MAX TEMPERATURE.....AROUND 64.
MIN HUMIDITY........43 PERCENT.
WIND (20 FT)........SOUTHWEST WINDS 15 TO 22 MPH. GUSTS UP TO 36
MPH INCREASING TO 40 MPH IN THE LATE MORNING
AND AFTERNOON. GUSTY AND ERRATIC WINDS EXPECTED
NEAR THUNDERSTORMS EARLY IN THE AFTERNOON.
GUSTY AND ERRATIC WINDS EXPECTED NEAR
THUNDERSTORMS LATE IN THE AFTERNOON.
MIXING HEIGHT.......8100 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 18 TO 25 MPH INCREASING TO WEST 30 TO
38 MPH IN THE LATE MORNING AND AFTERNOON, THEN
DECREASING TO AROUND 26 MPH LATE IN THE
AFTERNOON.
SMOKE DISPERSAL.....POOR (10300 KNOT-FT) EARLY IN THE MORNING
INCREASING TO GOOD (62600 KNOT-FT) IN THE
AFTERNOON INCREASING TO VERY GOOD (117300
KNOT-FT) EARLY IN THE MORNING INCREASING TO
EXCELLENT (182200 KNOT-FT) IN THE AFTERNOON
LATE IN THE MORNING, THEN INCREASING TO
EXCELLENT (185900 KNOT-FT) IN THE AFTERNOON
DECREASING TO VERY GOOD (136400 KNOT-FT) LATE
IN THE AFTERNOON.
TIME (MDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........68 54 47 44 43 42 45 51 57 63 63 60
WEATHER COV.....SCH SCH SCH 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........ SCH SCH SCH CHC CHC CHC
CWR.............10 10 10 10 10 10 10 10 10 10 10 10
TEMP............52 52 53 55 57 59 60 62 64 64 64 63
RH..............77 77 74 69 62 57 53 48 45 45 43 43
20 FT WIND DIR..SW SW SW SW SW SW SW SW SW W W W
20 FT WIND SPD..15 16 17 20 21 21 22 22 21 21 20 18
20 FT WIND GUST.28 31 33 36 38 40 40 40 40 39 37 35
MIX HGT (KFT)...0.6 0.8 1.6 2.8 4.5 6.3 7.6 8.1 8.0 7.5 6.9 5.9
TRANSP WIND DIR.SW SW SW SW SW SW SW W W W W W
TRANSP WIND SPD.18 21 23 25 30 33 37 38 37 35 31 26
SDSPL KT-FT/100010 15 32 63 117 182 244 268 257 226 186 136
FORECASTER...ZAWISLAK
REQUESTED BY...TEDDY DONOGHUE
TYPE OF REQUEST...WILDFIRE
.TAG 2620824.0/CYS
.DELDT 08/28/26
.FORMATTERVERSION 2.0.0
.EMAIL MVANPATTER@BLM.GOV,WYCPC@FIRENET.GOV
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