963
FNUS75 KCYS 011111
FWSCYS
SPOT FORECAST FOR LOG ROAD FIRE...NEMA
NATIONAL WEATHER SERVICE CHEYENNE WY
511 AM MDT WED JUL 1 2026
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER
SERVICE AT (307) 772-2227
DISCUSSION
HIGH TEMPERATURES THIS AFTERNOON WILL BE NEAR AVERAGE IN THE UPPER 80S.
DRY CONDITIONS WILL PERSIST WITH MINIMUM RELATIVE HUMIDITY FALLING TO
ABOUT 15 PERCENT. WINDS WILL BE A LIMITING FACTOR IN CRITICAL FIRE
WEATHER CONDITIONS. WEST TO NORTHWEST WINDS ARE EXPECTED THROUGHOUT THE
DAY AT ABOUT 10 MPH. PRECIPITATION CHANCES WILL BE LIMITED TODAY WITH
MOSTLY SUNNY SKIES. FAIR HUMIDITY RECOVERIES ARE EXPECTED OVERNIGHT AT
ABOUT 60 PERCENT. WINDS WILL TURN MORE SOUTHERLY OVERNIGHT, WITH WINDS
INCREASING UP TO 20 MPH FROM A LOW-LEVEL JET. GUSTS TO 30 MPH WILL BE
POSSIBLE. THERE WILL ALSO BE A SLIGHT CHANCE OF A THUNDERSTORM TONIGHT.
WARMER TEMPERATURES ARE EXPECTED ON THURSDAY, BUT RELATIVE HUMIDITY AND
WINDS WILL REMAIN SIMILAR TO WEDNESDAY. CANNOT RULE OUT A STAY STORM
DURING THE DAY THURSDAY.
TODAY
SKY/WEATHER.........SUNNY (5-15 PERCENT). PATCHY SMOKE IN THE
MORNING AND EARLY AFTERNOON, THEN AREAS OF
SMOKE LATE IN THE AFTERNOON.
CWR.................1 PERCENT.
MAX TEMPERATURE.....AROUND 87.
MIN HUMIDITY........16 PERCENT.
WIND (20 FT)........WEST WINDS 7 TO 8 MPH BECOMING LIGHT.
MIXING HEIGHT.......10400 FT AGL INCREASING TO 11000 FT AGL LATE IN
THE AFTERNOON.
TRANSPORT WINDS.....WEST 10 TO 14 MPH.
SMOKE DISPERSAL.....POOR (4400 KNOT-FT) EARLY IN THE MORNING
INCREASING TO GOOD (98500 KNOT-FT) IN THE
AFTERNOON INCREASING TO VERY GOOD (107500
KNOT-FT) LATE IN THE AFTERNOON.
HAINES INDEX........MISSING.
TIME (MDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........21 10 5 1 5 4 2 9 16 11 14 15
WEATHER COV.....PTY PTY PTY PTY PTY PTY PTY PTY PTY ARS ARS ARS
WEATHER TYPE....SMK SMK SMK SMK SMK SMK SMK SMK SMK SMK SMK SMK
TSTM COV........
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
TEMP............54 57 63 68 72 76 79 82 85 86 87 87
RH..............80 72 56 44 34 30 24 20 17 16 17 16
20 FT WIND DIR..SW W W W W W W NW NW NW NW NW
20 FT WIND SPD..7 8 8 8 8 8 8 7 7 6 5 3
20 FT WIND GUST.14 15 15 15 15 15 15 14 12 10 8 7
MIX HGT (KFT)...0.5 0.6 1.3 2.4 3.4 5.2 7.6 9.0 10 11 11 11
TRANSP WIND DIR.SW SW W W W W W W W W W W
TRANSP WIND SPD.10 12 13 14 14 13 13 13 13 12 12 12
HAINES INDEX....M M M M M M M M M M M M
SDSPL KT-FT/10004 6 15 29 41 57 83 99 114 108 110 110
TONIGHT
SKY/WEATHER.........MOSTLY CLEAR (20-30 PERCENT). AREAS OF SMOKE
EARLY IN THE EVENING, THEN PATCHY SMOKE IN THE
LATE EVENING AND OVERNIGHT.
CWR.................1 PERCENT.
MIN TEMPERATURE.....AROUND 59.
MAX HUMIDITY........60 PERCENT.
WIND (20 FT)........LIGHT WINDS BECOMING WEST 5 TO 6 MPH EARLY IN
THE EVENING, THEN SHIFTING TO THE SOUTH 7 TO 15
MPH IN THE LATE EVENING AND OVERNIGHT.
MIXING HEIGHT.......5500 FT AGL DECREASING TO 400 FT AGL EARLY IN
THE EVENING.
TRANSPORT WINDS.....WEST 6 TO 10 MPH SHIFTING TO THE EAST 8 TO 12
MPH EARLY IN THE EVENING, THEN SHIFTING TO THE
SOUTH 13 TO 18 MPH OVERNIGHT.
SMOKE DISPERSAL.....GOOD (95200 KNOT-FT) EARLY IN THE EVENING
DECREASING TO POOR (3500 KNOT-FT) LATE IN THE
NIGHT.
HAINES INDEX........MISSING.
TIME (MDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........10 9 12 13 18 22 13 23 37 37 32 35
WEATHER COV.....ARS ARS ARS PTY PTY PTY PTY PTY PTY
WEATHER TYPE....SMK SMK SMK SMK SMK SMK SMK SMK SMK
TSTM COV........
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
TEMP............87 86 79 73 70 68 66 66 63 63 61 60
RH..............16 16 22 28 34 40 45 48 58 60 58 55
20 FT WIND DIR..NW NW W SW S S S S S S S S
20 FT WIND SPD..3 3 5 6 7 8 9 12 14 15 13 10
20 FT WIND GUST.7 7 8 10 12 15 17 22 26 28 25 20
MIX HGT (KFT)...11 5.5 0.6 0.4 0.5 0.5 0.5 0.5 0.6 0.6 0.5 0.5
TRANSP WIND DIR.W W E E E SE S S S S S S
TRANSP WIND SPD.10 6 8 9 9 12 13 15 18 18 16 14
HAINES INDEX....M M M M M M M M M M M M
SDSPL KT-FT/100095 28 4 4 4 5 5 7 10 9 7 6
THURSDAY
SKY/WEATHER.........SUNNY (20-30 PERCENT). PATCHY SMOKE IN THE
MORNING AND EARLY AFTERNOON. AREAS OF SMOKE
LATE IN THE AFTERNOON. SLIGHT CHANCE OF RAIN
SHOWERS IN THE AFTERNOON. SLIGHT CHANCE OF
THUNDERSTORMS LATE IN THE AFTERNOON.
CWR.................5 PERCENT.
MAX TEMPERATURE.....AROUND 91.
MIN HUMIDITY........17 PERCENT.
WIND (20 FT)........SOUTH WINDS 6 TO 7 MPH. GUSTY AND ERRATIC WINDS
EXPECTED NEAR THUNDERSTORMS LATE IN THE
AFTERNOON.
MIXING HEIGHT.......8200 FT AGL INCREASING TO 10800 FT AGL LATE IN
THE AFTERNOON.
TRANSPORT WINDS.....SOUTH 12 TO 15 MPH.
SMOKE DISPERSAL.....POOR (4500 KNOT-FT) EARLY IN THE MORNING
INCREASING TO GOOD (97900 KNOT-FT) IN THE
AFTERNOON INCREASING TO VERY GOOD (125100
KNOT-FT) LATE IN THE AFTERNOON.
HAINES INDEX........MISSING.
TIME (MDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........39 19 9 8 6 11 9 13 14 15 33 31
WEATHER COV.....PTY PTY PTY PTY PTY PTY SCH SCH SCH ARS ARS ARS
WEATHER TYPE....SMK SMK SMK SMK SMK SMK RW RW RW SMK SMK SMK
TSTM COV........ SCH SCH SCH
CWR.............0 0 0 0 0 0 10 10 10 10 10 10
TEMP............59 64 70 74 79 84 86 89 90 91 90 90
RH..............60 50 44 40 34 28 25 22 20 18 18 17
20 FT WIND DIR..S S S S S S S S S S S S
20 FT WIND SPD..7 7 6 6 6 7 7 7 7 6 6 6
20 FT WIND GUST.14 12 10 10 10 12 12 12 12 12 12 10
MIX HGT (KFT)...0.4 0.7 1.5 2.2 3.6 5.2 6.6 6.4 8.2 11 10 11
TRANSP WIND DIR.S S S S S SE S SE S S S S
TRANSP WIND SPD.12 12 13 13 14 14 13 14 14 15 14 15
HAINES INDEX....M M M M M M M M M M M M
SDSPL KT-FT/10005 7 16 24 44 62 72 77 98 140 125 141
FORECASTER...FULLER
REQUESTED BY...DAVE REISEN PSC3
TYPE OF REQUEST...WILDFIRE
.TAG 2616566.0/CYS
.DELDT 07/01/26
.FORMATTERVERSION 2.0.0
.EMAIL DAVE.REISEN@NEBRASKA.GOV
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