377
FNUS75 KCYS 100604
FWSCYS
SPOT FORECAST FOR LYMAN GRASS FIRE...SCOTTSBLUFF COUNTY EM
NATIONAL WEATHER SERVICE CHEYENNE WY
1104 PM MST MON FEB 9 2026
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER
SERVICE AT (307) 772-2227
DISCUSSION
WINDS ARE GOING TO REMAIN NORTH-NORTHWEST AND GUSTING TO ABOUT 30 MPH UNTIL AROUND 2AM. A MID-LEVEL NOCTURNAL
INVERSION SHOULD SET IN AND WINDS SHOULD REMAIN LIGHT UNDER 15MPH. AROUND 4AM WINDS WILL SHIFT TO THE WEST BEFORE
BECOMING SOUTHERLY AROUND 9AM. THE NOCTURNAL INVERSION MAY LIMIT SOME SMOKE DISPERSAL THROUGH TUESDAY MORNING. THAT
INVERSION SHOULD ERODE AWAY BY NOON AHEAD OF THE NEXT SHORTWAVE. THIS SHORTWAVE MAY CREATE SOME LIGHT SNOW IN THE
AFTERNOON AND EVENING BUT DUE TO THE DRY LAYER NEAR THE SURFACE, THE CHANCE FOR PRECIP REMAIN ABOUT 15 PERCENT.
REST OF TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY (55-65 PERCENT) THEN BECOMING
PARTLY CLOUDY (40-50 PERCENT).
CWR.................2 PERCENT.
LAL.................
MIN TEMPERATURE.....AROUND 28.
MAX HUMIDITY........81 PERCENT.
WIND (20 FT)........NORTHWEST WINDS 5 TO 9 MPH LATE IN THE EVENING
BECOMING LIGHT.
MIXING HEIGHT.......500 FT AGL.
TRANSPORT WINDS.....NORTHWEST 7 TO 16 MPH.
SMOKE DISPERSAL.....POOR (2800 KNOT-FT).
HAINES INDEX........MISSING.
TIME (MST) 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........70 65 61 57 52 48 44
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............0 0 0 0 0 0 0
LAL.............M M M M M M M
TEMP............38 37 35 33 32 31 30
RH..............64 67 69 75 75 78 78
20 FT WIND DIR..N NW NW NW NW W W
20 FT WIND SPD..9 7 6 5 3 2 2
20 FT WIND GUST.16 13 10 8 7 6 5
MIX HGT (KFT)...2.0 1.9 1.2 0.9 0.5 0.5 0.5
TRANSP WIND DIR.N N N NW N NW NW
TRANSP WIND SPD.16 13 12 10 8 7 7
HAINES INDEX....M M M M M M M
SDSPL KT-FT/100028 21 12 8 4 3 3
TUESDAY
SKY/WEATHER.........PARTLY SUNNY (55-65 PERCENT) THEN BECOMING
MOSTLY CLOUDY (75-85 PERCENT). SLIGHT CHANCE OF
SNOW SHOWERS LATE IN THE MORNING. SLIGHT CHANCE
OF RAIN SHOWERS IN THE AFTERNOON.
CWR.................4 PERCENT.
LAL.................
MAX TEMPERATURE.....AROUND 48.
MIN HUMIDITY........37 PERCENT.
WIND (20 FT)........LIGHT WINDS BECOMING SOUTHEAST 5 TO 6 MPH LATE
IN THE AFTERNOON.
MIXING HEIGHT.......3900 FT AGL.
TRANSPORT WINDS.....NORTHWEST 5 TO 6 MPH SHIFTING TO THE SOUTH 5 TO
8 MPH IN THE LATE MORNING AND EARLY AFTERNOON,
THEN SHIFTING TO THE SOUTHEAST 8 TO 14 MPH LATE
IN THE AFTERNOON.
SMOKE DISPERSAL.....POOR (1900 KNOT-FT).
HAINES INDEX........MISSING.
TIME (MST) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........45 59 67 61 58 58 58 65 76 91 76 72
WEATHER COV..... SCH SCH SCH SCH SCH SCH SCH
WEATHER TYPE.... SW RS RS RS RS RS RW
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............29 29 32 36 39 42 45 46 47 48 47 46
RH..............81 78 75 67 59 51 47 43 40 37 38 40
20 FT WIND DIR..W W W SW SE E E SE SE SE E E
20 FT WIND SPD..2 2 2 2 2 2 3 3 5 5 6 6
20 FT WIND GUST.5 3 3 3 5 5 6 7 8 9 9 12
MIX HGT (KFT)...0.5 0.5 0.5 1.0 1.5 1.9 2.7 3.5 3.9 3.4 2.5 1.2
TRANSP WIND DIR.NW NW W SW S S S S S S S SE
TRANSP WIND SPD.6 5 5 5 6 5 5 6 8 8 10 14
HAINES INDEX....M M M M M M M M M M M M
SDSPL KT-FT/10003 2 2 4 8 8 11 17 27 24 22 14
TUESDAY NIGHT
SKY/WEATHER.........MOSTLY CLOUDY (65-75 PERCENT). SLIGHT CHANCE OF
RAIN SHOWERS EARLY IN THE EVENING. SLIGHT
CHANCE OF SNOW SHOWERS IN THE EVENING.
CWR.................4 PERCENT.
LAL.................
MIN TEMPERATURE.....AROUND 29.
MAX HUMIDITY........69 PERCENT.
WIND (20 FT)........SOUTHEAST WINDS 5 TO 7 MPH.
MIXING HEIGHT.......600 FT AGL.
TRANSPORT WINDS.....SOUTHEAST 8 TO 14 MPH.
SMOKE DISPERSAL.....POOR (4200 KNOT-FT).
HAINES INDEX........MISSING.
TIME (MST) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........80 82 61 59 64 64 67 70 73 68 62 57
WEATHER COV.....SCH SCH SCH SCH SCH
WEATHER TYPE....RW RS RS RS SW
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............43 40 38 37 37 36 35 33 32 32 31 31
RH..............47 52 57 59 59 61 64 66 69 69 69 69
20 FT WIND DIR..E E SE SE SE SE SE SE SE SE SE SE
20 FT WIND SPD..5 5 6 6 7 7 7 6 6 6 5 6
20 FT WIND GUST.10 10 12 12 13 13 13 12 12 12 10 10
MIX HGT (KFT)...0.9 0.8 0.7 0.7 0.8 0.9 1.0 1.0 1.0 0.9 0.8 0.6
TRANSP WIND DIR.E SE SE SE S S S SE SE SE S S
TRANSP WIND SPD.14 14 14 14 14 14 13 12 10 9 9 8
HAINES INDEX....M M M M M M M M M M M M
SDSPL KT-FT/100010 9 8 9 9 10 11 10 9 8 6 4
WEDNESDAY
SKY/WEATHER.........PARTLY SUNNY (60-70 PERCENT). SLIGHT CHANCE OF
RAIN SHOWERS LATE IN THE MORNING.
CWR.................6 PERCENT.
LAL.................
MAX TEMPERATURE.....AROUND 60.
MIN HUMIDITY........33 PERCENT.
WIND (20 FT)........SOUTH WINDS 7 TO 8 MPH SHIFTING TO THE
SOUTHWEST 5 TO 9 MPH IN THE LATE MORNING AND
AFTERNOON.
MIXING HEIGHT.......4000 FT AGL.
TRANSPORT WINDS.....SOUTH 8 TO 13 MPH SHIFTING TO THE WEST 13 TO 15
MPH LATE IN THE MORNING.
SMOKE DISPERSAL.....POOR (4000 KNOT-FT) EARLY IN THE MORNING
INCREASING TO FAIR (44100 KNOT-FT) IN THE
AFTERNOON.
HAINES INDEX........MISSING.
TIME (MST) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........57 58 58 57 56 57 63 70 76 77 77 75
WEATHER COV..... SCH SCH SCH SCH SCH SCH SCH
WEATHER TYPE.... RW RW RW RW RW RW RW
TSTM COV........
CWR.............0 0 0 0 0 0 0 0 0 0 0 10
LAL.............M M M M M M M M M M M M
TEMP............32 33 34 40 46 52 54 57 59 58 58 57
RH..............66 63 64 52 45 38 36 34 33 36 36 38
20 FT WIND DIR..SE S S S SW SW SW SW SW SW SW SW
20 FT WIND SPD..7 7 8 8 9 9 8 7 7 6 5 5
20 FT WIND GUST.12 14 15 15 16 16 15 14 12 10 8 8
MIX HGT (KFT)...0.6 0.6 0.6 0.7 0.8 1.2 2.2 3.4 4.0 3.6 2.7 1.8
TRANSP WIND DIR.S S S S SW W W W W W W W
TRANSP WIND SPD.8 9 10 10 13 15 15 14 13 14 15 15
HAINES INDEX....M M M M M M M M M M M M
SDSPL KT-FT/10004 5 6 6 9 16 29 40 44 43 35 23
FORECASTER...MCLAUGHLIN
REQUESTED BY...MICAH GOMES
TYPE OF REQUEST...WILDFIRE
.TAG 2602275.0/CYS
.DELDT 02/09/26
.FORMATTERVERSION 2.0.0
.EMAIL MICAH.GOMES@SCOTTSBLUFFCOUNTYNE.GOV
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