462
FNUS75 KCYS 292145
FWSCYS
SPOT FORECAST FOR LOG ROAD...USFS
NATIONAL WEATHER SERVICE CHEYENNE WY
345 PM MDT MON JUN 29 2026
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER
SERVICE AT (307) 772-2227
..RED FLAG WARNING IN EFFECT UNTIL 9 PM MDT THIS EVENING
...FIRE WEATHER WATCH IN EFFECT FROM TUESDAY MORNING THROUGH
TUESDAY EVENING...
DISCUSSION
CRITICAL FIRE WEATHER CONDITIONS ARE ONGOING WITH VERY STRONG
WINDS OUT OF THE WEST-SOUTHWEST. WINDS LIKELY PEAKED IN THE LAST
HOUR, BUT GUSTS OF 50 TO 60 MPH WILL REMAIN POSSIBLE FOR ANOTHER
1-2 HOURS, FOLLOWED BY GRADUAL WEAKENING THROUGH THE REMAINDER OF
THE EVENING. EXPECT GUSTS TO DROP OFF AROUND 1 OR 2AM. RH RECOVERY
WILL BE POOR TO FAIR TONIGHT, ONLY TO BETWEEN 35 AND 45 PERCENT.
WINDS WILL PICK UP AGAIN AROUND 9-10AM. THE DIRECTION WILL BE WEST-
SOUTHWEST AGAIN WITH GUSTS AROUND 20 TO 30 MPH. THE WIND DIRECTION
WILL BACK TO THE SOUTH AS THE DAY PROGRESSES. EXPECT RH TO DROP TO
BETWEEN 12 AND 15% TUESDAY AFTERNOON. A FEW SHOWERS OR THUNDERSTORMS
ARE POSSIBLE LATE TUESDAY AFTERNOON AND EVENING, WHICH MAY LEAD TO
GUSTY AND ERRATIC WINDS IN THE VICINITY OF THE FIRE.
REST OF TODAY
SKY/WEATHER.........SUNNY (10-20 PERCENT).
CWR.................1 PERCENT.
MAX TEMPERATURE.....AROUND 79.
MIN HUMIDITY........15 PERCENT.
WIND (20 FT)........BREEZY. WEST WINDS 30 TO 40 MPH WITH GUSTS TO
AROUND 60 MPH.
MIXING HEIGHT.......7700 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 37 TO 41 MPH.
SMOKE DISPERSAL.....EXCELLENT (247200 KNOT-FT).
TIME (MDT) 4PM 5PM
SKY (%).........18 16
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............0 0
TEMP............77 78
RH..............18 17
20 FT WIND DIR..W W
20 FT WIND SPD..28 25
20 FT WIND GUST.54 51
MIX HGT (KFT)...7.5 7.7
TRANSP WIND DIR.SW W
TRANSP WIND SPD.41 37
HAINES INDEX....M M
SDSPL KT-FT/1000270 247
TONIGHT
SKY/WEATHER.........MOSTLY CLEAR (0-10 PERCENT).
CWR.................0 PERCENT.
MIN TEMPERATURE.....AROUND 55.
MAX HUMIDITY........35 TO 45 PERCENT.
WIND (20 FT)........WEST WINDS 20 TO 30 MPH WITH GUSTS TO AROUND 50
MPH IN THE EVENING DECREASING TO 10 TO 15 MPH OVERNIGHT.
MIXING HEIGHT.......600 FT AGL.
TRANSPORT WINDS.....WEST 30 TO 35 MPH DECREASING TO 16 TO 24 MPH
EARLY IN THE EVENING.
SMOKE DISPERSAL.....EXCELLENT (222200 KNOT-FT) DECREASING TO POOR
(7900 KNOT-FT) LATE IN THE NIGHT.
TIME (MDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........5 3 8 10 9 5 4 9 4 8 8 7
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
TEMP............77 77 74 69 67 66 64 62 60 57 57 56
RH..............17 17 20 23 25 26 28 30 33 37 37 38
20 FT WIND DIR..W W W W W W W W W W W W
20 FT WIND SPD..23 21 20 18 17 16 16 14 12 12 10 10
20 FT WIND GUST.47 46 43 39 37 35 31 29 25 24 23 23
MIX HGT (KFT)...7.4 4.1 1.4 0.8 0.7 0.7 0.6 0.6 0.6 0.6 0.7 0.6
TRANSP WIND DIR.W W W W W W W W W W W W
TRANSP WIND SPD.35 30 24 23 22 22 21 18 16 16 16 16
HAINES INDEX....M M M M M M M M M M M M
SDSPL KT-FT/1000222 108 30 16 14 14 12 10 8 8 9 8
TUESDAY
SKY/WEATHER.........SUNNY (10-20 PERCENT).
CWR.................2 PERCENT.
MAX TEMPERATURE.....AROUND 88.
MIN HUMIDITY........12 TO 15 PERCENT.
WIND (20 FT)........WEST WINDS 10 TO 20 MPH TURNING TO THE
SOUTH LATE IN THE AFTERNOON.
GUSTS UP TO 35 MPH.
MIXING HEIGHT.......10400 FT AGL INCREASING TO 11300 FT AGL LATE IN
THE AFTERNOON.
TRANSPORT WINDS.....SOUTHWEST 15 TO 23 MPH.
SMOKE DISPERSAL.....POOR (7000 KNOT-FT) EARLY IN THE MORNING
INCREASING TO EXCELLENT (208600 KNOT-FT) IN
THE AFTERNOON.
TIME (MDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........16 11 4 4 5 7 3 4 10 12 26 27
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
TEMP............55 59 63 67 74 77 79 83 85 87 87 85
RH..............41 37 35 32 24 22 20 17 15 15 15 17
20 FT WIND DIR..W W W W W SW SW SW SW SW S S
20 FT WIND SPD..12 12 12 13 13 14 15 15 15 15 14 12
20 FT WIND GUST.23 24 25 26 29 30 30 31 32 31 29 26
MIX HGT (KFT)...0.5 0.7 1.5 2.7 3.9 5.0 6.1 7.6 9.1 10 11 11
TRANSP WIND DIR.W W W W W W W SW SW SW SW SW
TRANSP WIND SPD.15 16 20 22 21 22 22 23 23 23 21 18
HAINES INDEX....M M M M M M M M M M M M
SDSPL KT-FT/10007 10 26 51 70 94 115 152 182 209 203 176
FORECASTER...NATOLI
REQUESTED BY...CALEB MEYER
TYPE OF REQUEST...WILDFIRE
.TAG 2616469.0/CYS
.DELDT 06/29/26
.FORMATTERVERSION 2.0.0
.EMAIL JASON.R.HAUG@USDA.GOV,CALEB.MEYER@USDA.GOV
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