836
FNUS75 KCYS 041239
FWSCYS
SPOT FORECAST FOR ROB ROY RX...USFS
NATIONAL WEATHER SERVICE CHEYENNE WY
539 AM MST TUE FEB 4 2025
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER
SERVICE AT (307) 772-2227
DISCUSSION
A MILD BUT BREEZY DAY IS EXPECTED AS THE REGION SITS UNDER A RIDGE OF
HIGH PRESSURE. A HIGH TEMPERATURES AROUND 45 DEGREES IS EXPECTED WITH
A MINIMUM RH OF ABOUT 45 PERCENT. SOUTHWEST WINDS AT 20 MPH WITH GUSTS
OVER 30 MPH ARE LIKELY THROUGHOUT THE DAY. ALTHOUGH PRECIPITATION IS
UNLIKELY, CANNOT RULE OUT A STRAY SNOW OR RAIN SHOWER DURING THE DAY.
GUSTY WINDS WILL CONTINUE OVERNIGHT WITH GREAT HUMIDITY RECOVERIES
EXPECTED. ANOTHER WINDY DAY IS EXPECTED ON WEDNESDAY. SUSTAINED
SOUTHWEST WINDS OF 30 MPH WITH GUSTS OVER 50 MPH WILL BE POSSIBLE DURING
THE DAY. INCREASED PRECIPITATION CHANCES ARE ALSO EXPECTED WEDNESDAY
AFTERNOON INTO WEDNESDAY NIGHT WITH A CHANCE FOR SNOW. SNOW ACCUMULATIONS
UP TO 2 INCHES COULD BE POSSIBLE BY THURSDAY MORNING.
TODAY
SKY/WEATHER.........PARTLY SUNNY (60-70 PERCENT).
CWR.................2 PERCENT.
MAX TEMPERATURE.....AROUND 44.
MIN HUMIDITY........47 PERCENT.
WIND (20 FT)........SOUTHWEST WINDS 16 TO 17 MPH WITH GUSTS TO
AROUND 33 MPH.
MIXING HEIGHT.......3900 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 40 TO 49 MPH INCREASING TO 45 TO 53
MPH LATE IN THE MORNING.
SMOKE DISPERSAL.....POOR (29400 KNOT-FT) EARLY IN THE MORNING
INCREASING TO VERY GOOD (110900 KNOT-FT) IN THE
AFTERNOON INCREASING TO VERY GOOD (115100
KNOT-FT) EARLY IN THE MORNING INCREASING TO
EXCELLENT (172400 KNOT-FT) IN THE AFTERNOON
LATE IN THE MORNING.
TIME (MST) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........77 83 83 78 73 72 67 64 65 64 53 50
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
TEMP............31 31 31 37 39 42 42 44 42 44 41 39
RH..............61 61 63 52 52 48 51 49 53 47 53 54
20 FT WIND DIR..SW SW SW SW SW SW SW SW SW SW SW SW
20 FT WIND SPD..17 17 17 17 16 16 16 16 16 16 16 16
20 FT WIND GUST.33 32 32 32 32 31 31 30 30 30 29 29
MIX HGT (KFT)...0.8 0.9 1.2 1.8 2.6 3.3 3.7 3.9 3.9 3.8 3.4 2.9
TRANSP WIND DIR.SW SW SW SW SW SW W W W W SW SW
TRANSP WIND SPD.41 40 41 45 49 53 52 51 48 47 46 45
SDSPL KT-FT/100029 32 42 71 111 149 168 172 166 155 137 115
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY (35-45 PERCENT). SLIGHT CHANCE OF
SNOW EARLY IN THE MORNING.
CWR.................4 PERCENT.
MIN TEMPERATURE.....AROUND 25.
MAX HUMIDITY........92 PERCENT.
WIND (20 FT)........BREEZY. SOUTHWEST WINDS 16 TO 25 MPH WITH GUSTS
TO AROUND 47 MPH INCREASING TO 26 TO 28 MPH
WITH GUSTS TO AROUND 52 MPH AFTER 3 AM.
MIXING HEIGHT.......1300 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 40 TO 49 MPH INCREASING TO 51 TO 53
MPH AFTER 3 AM.
SMOKE DISPERSAL..... VERY GOOD (100100 KNOT-FT) EARLY IN THE
EVENING DECREASING TO FAIR (46000 KNOT-FT) LATE
IN THE NIGHT.
TIME (MST) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........46 40 42 36 32 32 33 39 41 39 37 44
WEATHER COV..... SCH
WEATHER TYPE.... SN
TSTM COV........
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
TEMP............35 31 31 30 28 28 30 28 30 28 28 28
RH..............64 75 75 78 81 81 75 85 78 85 81 81
20 FT WIND DIR..SW SW SW SW SW SW SW SW SW SW SW SW
20 FT WIND SPD..16 16 16 16 17 18 21 22 24 25 26 28
20 FT WIND GUST.29 29 30 31 33 35 38 41 45 47 51 52
MIX HGT (KFT)...2.3 1.7 1.3 1.3 1.4 1.6 1.5 1.4 1.3 1.6 1.9 2.2
TRANSP WIND DIR.SW SW SW SW SW SW SW SW SW SW SW SW
TRANSP WIND SPD.43 41 40 41 45 46 47 47 47 49 51 53
SDSPL KT-FT/100088 62 46 47 56 65 61 56 55 68 87 100
WEDNESDAY
SKY/WEATHER.........PARTLY SUNNY (50-60 PERCENT). SLIGHT CHANCE OF
SNOW IN THE MORNING, THEN CHANCE OF SNOW LATE
IN THE MORNING. SNOW LIKELY LATE IN THE
AFTERNOON.
CWR.................4 PERCENT INCREASING TO 59 PERCENT.
MAX TEMPERATURE.....AROUND 37.
MIN HUMIDITY........52 PERCENT.
WIND (20 FT)........BREEZY. SOUTHWEST WINDS 25 TO 29 MPH WITH GUSTS
TO AROUND 53 MPH.
MIXING HEIGHT.......3700 FT AGL.
TRANSPORT WINDS.....WEST 48 TO 55 MPH.
SMOKE DISPERSAL.....GOOD (77300 KNOT-FT) EARLY IN THE MORNING
INCREASING TO EXCELLENT (175200 KNOT-FT) IN THE
AFTERNOON.
TIME (MST) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........52 52 51 44 57 54 53 58 64 67 67 68
WEATHER COV.....SCH SCH SCH SCH SCH CHC CHC CHC CHC CHC CHC LKY
WEATHER TYPE....SN SN SN SN SN SN SN SN SN SN SN SN
TSTM COV........
CWR.............0 0 0 0 0 20 20 20 20 20 20 60
TEMP............25 25 27 30 35 37 37 37 37 37 36 34
RH..............92 88 81 72 56 52 52 54 54 54 56 61
20 FT WIND DIR..SW SW SW SW SW SW SW SW SW SW SW SW
20 FT WIND SPD..29 29 28 28 26 25 25 25 25 25 25 25
20 FT WIND GUST.53 53 53 51 49 48 47 47 47 48 49 48
MIX HGT (KFT)...2.1 1.9 1.8 2.2 2.7 3.1 3.4 3.6 3.6 3.7 3.7 3.6
TRANSP WIND DIR.SW SW SW W W W W W W W W W
TRANSP WIND SPD.52 49 48 49 51 53 53 53 53 54 55 55
SDSPL KT-FT/100093 82 77 93 118 143 156 164 169 174 175 173
FORECASTER...FULLER
REQUESTED BY...MARCUS VIGIL
TYPE OF REQUEST...PRESCRIBED
.TAG 2501966.0/CYS
.DELDT 02/04/25
.FORMATTERVERSION 2.0.0
.EMAIL MARCUS.VIGIL@USDA.GOV
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page