056
FNUS75 KCYS 230119
FWSCYS
SPOT FORECAST FOR HAY FIRE...LINGLE FIRE
NATIONAL WEATHER SERVICE CHEYENNE WY
719 PM MDT THU OCT 22 2026
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER
SERVICE AT (307) 772-2227
DISCUSSION
CALM CONDITIONS EXPECTED OVERNIGHT WITH LIGHT WINDS OUT OF THE
SOUTHEAST. SOUTHEAST WINDS WILL LEAD TO GOOD HUMIDITY RECOVERY NEAR
90 PERCENT. CLEARING SKIES ARE EXPECTED THROUGHOUT THE DAY FRIDAY
AS WINDS TURN MORE WESTERLY. WEST TO SOUTHWEST WINDS AT 10 MPH WITH
GUSTS TO 20 MPH CAN BE EXPECTED DURING THE AFTERNOON. THE HIGH
TEMPERATURE WILL BE NEAR 80 DEGREES WITH A MINIMUM RELATIVE HUMIDITY
AROUND 25 PERCENT. PRECIPITATION CHANCES DURING THE DAY WILL BE MINIMAL,
HOWEVER, THERE IS A CHANCE FOR SCATTERED SHOWERS AND THUNDERSTORMS
DURING THE EVENING HOURS ON FRIDAY AHEAD OF A STRONG COLD FRONT. THE
COLD FRONT WILL MOVE THROUGH LATE FRIDAY NIGHT, WITH WINDS SHIFTING
OUT OF THE NORTH. BLUSTERY CONDITIONS ARE EXPECTED BEHIND THE FRONT
WITH 20 MPH WINDS AND GUSTS TO 30 MPH LATE FRIDAY NIGHT AND THROUGH
THE DAY SATURDAY. MUCH COOLER TEMPERATURES ARE EXPECTED SATURDAY WITH
A HIGH NEAR 55 DEGREES AND A MINIMUM RELATIVE HUMIDITY AROUND 35 PERCENT.
PRECIPITATION CHANCES DURING THE DAY WILL ONCE AGAIN BE FAIRLY LOW.
REST OF TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY (75-85 PERCENT).
CWR.................3 PERCENT.
MIN TEMPERATURE.....AROUND 51.
MAX HUMIDITY........89 PERCENT.
WIND (20 FT)........SOUTHEAST WINDS 5 TO 6 MPH EARLY IN THE EVENING
BECOMING LIGHT, THEN BECOMING SOUTHEAST AROUND
5 MPH OVERNIGHT.
MIXING HEIGHT.......400 FT AGL.
TRANSPORT WINDS.....SOUTHEAST 10 TO 14 MPH SHIFTING TO THE SOUTH 7
TO 10 MPH OVERNIGHT.
SMOKE DISPERSAL.....POOR (2600 KNOT-FT).
TIME (MDT) 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........90 78 90 69 67 76 75 73 70 80
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............0 0 0 0 0 0 0 0 0 0
TEMP............64 63 61 59 57 55 54 53 53 52
RH..............52 56 60 64 69 74 77 83 83 86
20 FT WIND DIR..SE SE SE SE SE SE SE SE SE SE
20 FT WIND SPD..6 6 5 5 3 3 5 5 5 5
20 FT WIND GUST.10 10 9 8 7 7 8 8 8 8
MIX HGT (KFT)...0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.4 0.5 0.4
TRANSP WIND DIR.E SE SE SE S S S SE S S
TRANSP WIND SPD.14 13 12 10 10 9 9 8 7 7
SDSPL KT-FT/10006 6 5 4 4 4 4 3 3 3
FRIDAY
SKY/WEATHER.........MOSTLY CLOUDY (70-80 PERCENT) THEN BECOMING
SUNNY (20-30 PERCENT).
CWR.................2 PERCENT.
MAX TEMPERATURE.....AROUND 79.
MIN HUMIDITY........24 PERCENT.
WIND (20 FT)........SOUTHEAST WINDS AROUND 5 MPH EARLY IN THE
MORNING BECOMING LIGHT, THEN BECOMING SOUTH 5
TO 7 MPH LATE IN THE MORNING SHIFTING TO THE
WEST 7 TO 9 MPH.
MIXING HEIGHT.......7300 FT AGL.
TRANSPORT WINDS.....SOUTH 6 TO 9 MPH SHIFTING TO THE WEST 12 TO 17
MPH LATE IN THE MORNING.
SMOKE DISPERSAL.....POOR (2100 KNOT-FT) EARLY IN THE MORNING
INCREASING TO VERY GOOD (100700 KNOT-FT) IN THE
AFTERNOON INCREASING TO POOR (27600 KNOT-FT)
EARLY IN THE MORNING INCREASING TO VERY GOOD
(109700 KNOT-FT) IN THE AFTERNOON LATE IN THE
AFTERNOON.
TIME (MDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........80 73 66 48 42 23 12 2 2 7 9 21
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
TEMP............52 51 52 55 62 70 74 77 78 78 77 76
RH..............86 89 89 83 65 46 37 30 26 24 24 24
20 FT WIND DIR..SE SE SE SE S SW W W W SW W W
20 FT WIND SPD..5 3 2 2 5 7 8 9 9 9 8 7
20 FT WIND GUST.8 7 6 6 8 12 15 16 17 17 16 14
MIX HGT (KFT)...0.4 0.4 0.4 0.4 1.2 1.8 3.2 5.0 6.7 7.3 6.4 2.5
TRANSP WIND DIR.S S S S SW W W W W W W W
TRANSP WIND SPD.7 7 6 6 9 12 15 15 17 17 16 13
SDSPL KT-FT/10003 3 2 2 10 19 42 65 101 110 89 28
FRIDAY NIGHT
SKY/WEATHER.........PARTLY CLOUDY (35-45 PERCENT) THEN BECOMING
MOSTLY CLOUDY (60-70 PERCENT) THEN BECOMING
PARTLY CLOUDY (30-40 PERCENT). SLIGHT CHANCE OF
RAIN SHOWERS EARLY IN THE EVENING.
CWR.................5 PERCENT.
MIN TEMPERATURE.....AROUND 39.
MAX HUMIDITY........82 PERCENT.
WIND (20 FT)........NORTHWEST WINDS 7 TO 15 MPH.
MIXING HEIGHT.......500 FT AGL.
TRANSPORT WINDS.....NORTHWEST 12 TO 14 MPH INCREASING TO 15 TO 18
MPH OVERNIGHT.
SMOKE DISPERSAL.....POOR (4700 KNOT-FT).
TIME (MDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........42 58 57 73 64 56 69 66 58 58 33 35
WEATHER COV.....SCH SCH SCH
WEATHER TYPE....RW RW RW
TSTM COV........
CWR.............10 10 10 10 10 10 0 0 0 0 0 0
TEMP............70 64 61 59 57 55 53 51 50 48 44 42
RH..............31 38 42 44 47 51 54 56 58 63 73 79
20 FT WIND DIR..W W NW NW NW NW NW NW NW NW NW NW
20 FT WIND SPD..7 7 7 7 7 8 9 10 12 13 14 15
20 FT WIND GUST.13 13 13 14 15 16 17 20 22 24 26 28
MIX HGT (KFT)...1.1 0.6 0.5 0.6 0.5 0.5 0.5 0.5 0.6 0.5 0.7 1.6
TRANSP WIND DIR.W NW NW NW NW NW NW NW NW N N NW
TRANSP WIND SPD.12 13 14 13 12 12 12 13 15 17 17 18
SDSPL KT-FT/100011 6 6 6 5 5 5 6 8 8 10 25
SATURDAY
SKY/WEATHER.........MOSTLY SUNNY (35-45 PERCENT).
CWR.................0 PERCENT.
MAX TEMPERATURE.....AROUND 54.
MIN HUMIDITY........35 PERCENT.
WIND (20 FT)........NORTH WINDS 7 TO 15 MPH SHIFTING TO THE
NORTHEAST 6 TO 7 MPH LATE IN THE AFTERNOON.
MIXING HEIGHT.......3900 FT AGL.
TRANSPORT WINDS.....NORTH 12 TO 20 MPH SHIFTING TO THE NORTHEAST 8
TO 10 MPH LATE IN THE AFTERNOON.
SMOKE DISPERSAL.....POOR (12500 KNOT-FT) EARLY IN THE MORNING
INCREASING TO FAIR (47500 KNOT-FT) IN THE
AFTERNOON.
TIME (MDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........47 30 37 43 42 41 40 37 34 31 34 37
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
TEMP............41 39 39 41 44 47 51 52 53 54 53 52
RH..............82 82 82 76 65 56 44 41 38 35 36 38
20 FT WIND DIR..NW N N N N N N N N N NE NE
20 FT WIND SPD..15 15 15 14 14 15 14 12 9 7 7 6
20 FT WIND GUST.28 28 26 25 26 26 26 22 17 13 12 10
MIX HGT (KFT)...1.8 2.3 2.5 2.5 2.7 2.9 3.2 3.6 3.9 3.8 2.9 1.8
TRANSP WIND DIR.N N N N N N N N N N NE E
TRANSP WIND SPD.20 18 18 18 17 18 17 15 12 10 9 8
SDSPL KT-FT/100031 37 39 40 40 47 48 46 39 34 23 13
FORECASTER...FULLER
REQUESTED BY...HAYDEN SMITH
TYPE OF REQUEST...WILDFIRE
.TAG 2624402.0/CYS
.DELDT 10/22/26
.FORMATTERVERSION 2.0.0
.EMAIL GOSHENCOUNTYFIRE@GMAIL.COM
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