307
FNUS75 KCYS 081500
FWSCYS
SPOT FORECAST FOR MOONSHINE...BLM
NATIONAL WEATHER SERVICE CHEYENNE WY
900 AM MDT TUE SEP 8 2026
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER
SERVICE AT (307) 772-2227
...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 8 PM MDT THIS
EVENING...
DISCUSSION
WEST WINDS UP TO AROUND 15 MPH WILL BE THE PROMINENT DIRECTION AND
SPEEDS DURING THE DAY TODAY. DUE TO THE LOCATION OF THE MOONSHINE
FIRE THE NORTHERN LARAMIE RANGE, WINDS COULD ALWAYS OVER PERFORM
DUE TO THE FUNNELING EFFECT BY THE MOUNTAINS, BUT SHOULD BE WITHIN
10 MPH OF FORECAST. MINIMUM RH VALUES MAY DIP LOWER THAN FORECAST
TO AS LOW AS 10 PERCENT INSTEAD OF 12 IF THE DOWNSLOPING WINDS DO
PICK UP. AND AS SUCH, WE HAVE CRITICAL FIRE WEATHER CONDITIONS
TODAY AND THEREFORE, A RED FLAG WARNING IS IN EFFECT FROM NOON
TODAY UNTIL 8PM THIS EVENING.
TODAY
SKY/WEATHER.........SUNNY (5-15 PERCENT).
CWR.................0 PERCENT.
MAX TEMPERATURE.....AROUND 82.
MIN HUMIDITY........12 PERCENT.
WIND (20 FT)........WEST WINDS 13 TO 14 MPH.
MIXING HEIGHT.......10000 FT AGL.
TRANSPORT WINDS.....WEST 16 TO 22 MPH.
SMOKE DISPERSAL.....POOR (25800 KNOT-FT) EARLY IN THE MORNING
INCREASING TO GOOD (84400 KNOT-FT) IN THE
AFTERNOON INCREASING TO VERY GOOD (139400
KNOT-FT) EARLY IN THE MORNING INCREASING TO
EXCELLENT (190400 KNOT-FT) IN THE AFTERNOON IN
THE AFTERNOON.
TIME (MDT) 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........12 12 12 7 7 7 12 12 12
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............0 0 0 0 0 0 0 0 0
TEMP............67 70 74 78 79 81 82 82 81
RH..............21 18 14 12 12 12 13 13 13
20 FT WIND DIR..W W W W W W W W W
20 FT WIND SPD..13 13 13 13 14 14 14 13 13
20 FT WIND GUST.25 25 25 25 26 26 26 25 24
MIX HGT (KFT)...1.8 3.3 5.6 7.7 8.8 9.8 10 9.9 9.4
TRANSP WIND DIR.W W W W W W W W W
TRANSP WIND SPD.16 16 17 21 22 22 22 21 20
SDSPL KT-FT/100026 46 84 139 168 187 190 179 160
TONIGHT
SKY/WEATHER.........MOSTLY CLEAR (20-30 PERCENT).
CWR.................0 PERCENT.
MIN TEMPERATURE.....AROUND 52.
MAX HUMIDITY........43 PERCENT.
WIND (20 FT)........WEST WINDS 5 TO 12 MPH BECOMING LIGHT.
MIXING HEIGHT.......500 FT AGL.
TRANSPORT WINDS.....WEST 10 TO 17 MPH SHIFTING TO THE NORTHWEST 9
TO 10 MPH AFTER 3 AM.
SMOKE DISPERSAL..... VERY GOOD (104900 KNOT-FT) EARLY IN THE
EVENING DECREASING TO POOR (17300 KNOT-FT) LATE
IN THE NIGHT DECREASING TO POOR (3700 KNOT-FT)
EARLY IN THE EVENING.
TIME (MDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........37 37 37 18 18 18 13 13 13 12 12 12
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
TEMP............81 77 73 69 67 65 63 61 59 57 55 54
RH..............13 16 20 23 25 26 26 28 32 35 38 40
20 FT WIND DIR..W W W W W W W W W NW W W
20 FT WIND SPD..12 10 8 7 7 8 9 8 7 6 5 3
20 FT WIND GUST.23 20 16 14 15 16 18 16 14 12 9 7
MIX HGT (KFT)...7.0 1.6 0.5 0.5 0.5 0.6 0.6 0.5 0.6 0.5 0.5 0.5
TRANSP WIND DIR.W W W W W W NW NW NW N NW W
TRANSP WIND SPD.17 13 10 10 13 13 15 14 13 10 9 9
SDSPL KT-FT/1000105 17 5 5 6 6 8 6 6 5 4 4
WEDNESDAY
SKY/WEATHER.........SUNNY (10-20 PERCENT).
CWR.................0 PERCENT.
MAX TEMPERATURE.....AROUND 78.
MIN HUMIDITY........13 PERCENT.
WIND (20 FT)........LIGHT WINDS BECOMING SOUTH 5 TO 6 MPH LATE IN
THE MORNING, THEN SHIFTING TO THE WEST 7 TO 15
MPH IN THE AFTERNOON.
MIXING HEIGHT.......10100 FT AGL.
TRANSPORT WINDS.....WEST AROUND 9 MPH SHIFTING TO THE SOUTHWEST 8
TO 16 MPH IN THE MORNING, THEN INCREASING TO
WEST 21 TO 23 MPH IN THE AFTERNOON.
SMOKE DISPERSAL.....POOR (4000 KNOT-FT) EARLY IN THE MORNING
INCREASING TO GOOD (75100 KNOT-FT) IN THE
AFTERNOON INCREASING TO VERY GOOD (132200
KNOT-FT) EARLY IN THE MORNING INCREASING TO
EXCELLENT (202500 KNOT-FT) IN THE AFTERNOON IN
THE AFTERNOON.
TIME (MDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........12 12 12 11 11 11 11 11 11 19 19 19
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
TEMP............52 54 56 58 63 67 72 74 76 78 77 77
RH..............43 41 38 37 31 26 21 18 16 13 13 13
20 FT WIND DIR..W SW W E E S SW W W W W NW
20 FT WIND SPD..2 2 2 2 3 5 6 7 8 12 14 15
20 FT WIND GUST.5 3 3 5 7 12 15 20 23 26 26 26
MIX HGT (KFT)...0.5 0.5 1.1 2.1 2.8 4.0 5.4 7.3 9.2 9.3 10 9.2
TRANSP WIND DIR.W SW S SE SW W W W W W W W
TRANSP WIND SPD.9 9 9 8 9 12 16 21 22 21 23 22
SDSPL KT-FT/10004 4 9 15 22 40 75 132 174 168 203 174
FORECASTER...ZAWISLAK
REQUESTED BY...WY CPC
TYPE OF REQUEST...WILDFIRE
.TAG 2621423.0/CYS
.DELDT 09/08/26
.FORMATTERVERSION 2.0.0
.EMAIL WYCPC@FIRENET.GOV,JBALDWIN@BLM.GOV
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