074
FNUS75 KCYS 191247
FWSCYS
SPOT FORECAST FOR CENTENNIAL...USFS
NATIONAL WEATHER SERVICE CHEYENNE WY
547 AM MST THU DEC 19 2024
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER
SERVICE AT (307) 772-2227
DISCUSSION
REMAINING WINDY AND DRY TODAY WITH WIND GUSTS UP TO
50 MPH POSSIBLE. WINDS WILL GRADUALLY DIMINISH TONIGHT AND FRIDAY
AS A RIDGE OF HIGH PRESSURE ALOFT MOVES OVER THE FRONT RANGE JUST
IN TIME FOR THE WEEKEND. SEASONABLY COOL TEMPERATURES ARE EXPECTED.
TODAY
SKY/WEATHER.........MOSTLY SUNNY (20-30 PERCENT).
CWR.................0 PERCENT.
LAL.................1.
MAX TEMPERATURE.....34 TO 39 DEGREES.
MIN HUMIDITY........35 TO 45 PERCENT.
WIND (20 FT)........VERY WINDY. WEST WINDS 21 TO 30 MPH WITH GUSTS TO
AROUND 50 MPH DECREASING TO 9 TO 17 MPH LATE IN
THE AFTERNOON.
MIXING HEIGHT.......2800 FT AGL.
TRANSPORT WINDS.....WEST 37 TO 46 MPH DECREASING TO 20 TO 25 MPH.
SMOKE DISPERSAL.....GOOD (84100 KNOT-FT).
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE
PLUME DOMINATED FIRE GROWTH.
TIME (MST) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........15 20 22 23 20 26 25 30 27 21 28 30
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
LAL.............1 1 1 1 1 1 1 1 1 1 1 1
TEMP............27 26 28 31 33 35 36 37 36 36 33 29
RH..............59 62 59 50 47 43 42 41 40 40 43 50
20 FT WIND DIR..W W W W W W W W W W W W
20 FT WIND SPD..30 29 29 29 29 24 24 21 17 14 10 9
20 FT WIND GUST.48 47 45 45 45 38 38 33 26 22 17 15
MIX HGT (KFT)...1.5 1.4 1.4 1.7 2.0 2.3 2.6 2.8 2.7 2.3 1.8 1.4
TRANSP WIND DIR.W W W W W W W W W W W W
TRANSP WIND SPD.46 44 41 41 41 40 37 33 29 25 22 20
HAINES INDEX....2 2 2 2 2 2 2 2 2 2 2 4
SDSPL KT-FT/100061 54 51 60 72 82 84 79 68 51 34 23
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY (25-35 PERCENT).
CWR.................0 PERCENT.
LAL.................1.
MIN TEMPERATURE.....20 TO 25 DEGREES.
MAX HUMIDITY........50 TO 65 PERCENT.
WIND (20 FT)........WEST WINDS 12 TO 17 MPH.
MIXING HEIGHT.......1100 FT AGL.
TRANSPORT WINDS.....WEST 20 TO 25 MPH.
SMOKE DISPERSAL.....POOR (20300 KNOT-FT).
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
FIRE GROWTH.
TIME (MST) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........27 30 26 20 15 15 18 20 22 29 37 43
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
LAL.............1 1 1 1 1 1 1 1 1 1 1 1
TEMP............28 27 27 27 27 27 28 27 27 26 23 27
RH..............50 48 46 44 40 39 37 37 37 37 39 35
20 FT WIND DIR..W W W W W W W W W W W W
20 FT WIND SPD..12 15 17 17 17 16 16 17 17 17 17 17
20 FT WIND GUST.18 23 26 26 26 25 25 26 26 26 26 26
MIX HGT (KFT)...1.2 1.1 1.1 1.2 1.2 1.3 1.3 1.3 1.3 1.3 1.3 1.3
TRANSP WIND DIR.W W W W W W W W W W W W
TRANSP WIND SPD.20 22 23 24 24 25 24 24 24 24 24 25
HAINES INDEX....4 4 4 4 4 4 4 4 4 4 4 4
SDSPL KT-FT/100020 21 23 24 26 28 28 28 28 28 28 29
FRIDAY
SKY/WEATHER.........PARTLY SUNNY (30-45 PERCENT).
CWR.................0 PERCENT.
LAL.................1.
MAX TEMPERATURE.....43 TO 48 DEGREES.
MIN HUMIDITY........22 TO 27 PERCENT.
WIND (20 FT)........WEST WINDS 15 TO 20 MPH.
MIXING HEIGHT.......2900 FT AGL.
TRANSPORT WINDS.....WEST 25 TO 33 MPH INCREASING TO 30 TO 37 MPH IN
THE AFTERNOON.
SMOKE DISPERSAL.....GOOD (92200 KNOT-FT) IN THE
AFTERNOON.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE
PLUME DOMINATED FIRE GROWTH.
TIME (MST) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........44 42 38 33 29 26 25 25 26 28 29 21
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
LAL.............1 1 1 1 1 1 1 1 1 1 1 1
TEMP............27 28 30 35 39 41 42 43 44 42 40 38
RH..............36 36 34 30 29 28 29 29 27 32 34 34
20 FT WIND DIR..W W W W W W W W W W W W
20 FT WIND SPD..17 18 20 20 18 17 17 18 20 20 20 20
20 FT WIND GUST.29 30 32 32 30 29 29 30 32 32 32 32
MIX HGT (KFT)...1.3 1.3 1.4 1.6 1.9 2.2 2.5 2.8 2.9 2.6 2.0 1.5
TRANSP WIND DIR.W W W W W W W W W W W W
TRANSP WIND SPD.25 26 28 29 30 31 33 36 37 36 32 30
HAINES INDEX....4 4 4 4 4 3 3 3 3 3 3 3
SDSPL KT-FT/100029 30 33 40 49 60 75 88 92 78 57 40
REQUESTED BY...PARKER JOHNSON
TYPE OF REQUEST...PRESCRIBED
.TAG 2428732.0/CYS
.DELDT 12/19/24
.FORMATTERVERSION 2.0.0
.EMAIL PARKER.JOHNSON@USDA.GOV
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