262
FNUS75 KRIW 191215
FWSRIW
SPOT FORECAST FOR COFFIN BUTTE RX...USFS
NATIONAL WEATHER SERVICE RIVERTON WY
515 AM MST TUE NOV 19 2024
FORECAST IS BASED ON IGNITION TIME OF 0600 MST ON NOVEMBER 19.
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER
SERVICE
DISCUSSION
LIGHT SNOW, WITH MINOR ACCUMULATIONS, WILL CONTINUE OVER THE SITE
THROUGH THE MORNING AND IS EXPECTED TO END AROUND 1200. LIGHT SNOW
SHOWERS WILL REMAIN POSSIBLE THROUGH THE AFTERNOON, WITH A LOW
CONFIDENCE (20% AND DROPPING TOWARD 1600). WEST TO SOUTHWEST WINDS,
WITH GUSTS OF 15 TO 20 MPH, WILL OCCUR THROUGH THE AFTERNOON. DRY
AND COLD CONDITIONS WILL BE IN PLACE WEDNESDAY, WITH WIND GUSTS UP
TO 15 MPH IN THE AFTERNOON. A WARMING TREND BEGINS THURSDAY, WITH
DAYTIME TEMPERATURES REACHING THE FREEZING MARK. TEMPERATURES WILL
BE A FEW DEGREES WARMER FRIDAY AND SATURDAY, WITH WINDS REMAINING AT
10 MPH OR LESS.
..THUNDERSTORMS IMPLY STRONG GUSTY AND ERRATIC WINDS
..HAINES INDEX IS HIGH LEVEL HAINES BOTH DAY AND NIGHT
TODAY
SKY/WEATHER.........PARTLY SUNNY (50-60 PERCENT). CHANCE OF SNOW IN
THE MORNING. SLIGHT CHANCE OF SNOW LATE IN THE
AFTERNOON.
CHANCE OF PCPN......50 PERCENT.
MAX TEMPERATURE.....AROUND 14.
MIN HUMIDITY........60 PERCENT.
WIND (20 FT)........WEST WINDS AROUND 7 MPH UNTIL 0800, THEN WEST 7
TO 13 MPH WITH GUSTS TO AROUND 19 MPH.
MIXING HEIGHT.......2500 FT AGL UNTIL 1000, THEN 4000 FT AGL UNTIL
1100, THEN 6500 FT AGL UNTIL 1600, THEN 3500 FT
AGL.
TRANSPORT WINDS.....WEST 13 TO 18 MPH UNTIL 1000, THEN 23 TO 31 MPH
UNTIL 1700, THEN AROUND 16 MPH.
SMOKE DISPERSAL.....POOR UNTIL 0900, THEN INCREASING TO EXCELLENT IN
THE AFTERNOON UNTIL 1500, THEN DECREASING TO POOR
BY 1700.
HAINES INDEX........2 TO 3.
TIME (MST) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........60 55 60 65 60 65 75 75 60 45 40 50
WEATHER COV.....CHC CHC CHC CHC CHC CHC CHC SCH SCH
WEATHER TYPE....SN SN SN SN SN SN SN SN SN
TSTM COV........
CHC OF PCPN (%).40 40 50 50 30 30 30 10 10 10 20 20
TEMP............3 3 3 6 9 10 11 13 14 13 13 11
RH..............83 83 83 76 73 71 69 63 60 60 63 73
20 FT WIND DIR..W W W W W W W W W W W W
20 FT WIND SPD..7 6 7 8 10 12 13 13 12 12 10 9
20 FT WIND GUST.11 10 11 13 16 18 19 19 18 18 16 14
MIX HGT (KFT)...1.0 1.0 1.5 2.5 4.0 6.0 6.5 6.5 6.0 5.0 3.5 2.0
TRANSP WIND DIR.W W W W W W W W W W W W
TRANSP WIND SPD.14 13 14 18 23 26 29 31 30 28 24 16
HAINES INDEX....3 3 3 3 3 3 3 3 3 3 3 2
SDSPL KT-FT/100015 13 16 43 84 136 159 179 155 125 78 26
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY (25-35 PERCENT) THEN BECOMING
CLEAR (0-10 PERCENT).
CHANCE OF PCPN......10 PERCENT.
MIN TEMPERATURE.....AROUND 5 ABOVE.
MAX HUMIDITY........79 PERCENT.
WIND (20 FT)........WEST WINDS 7 TO 14 MPH UNTIL 0300, THEN LIGHT.
GUSTS UP TO 26 MPH DECREASING TO 16 MPH
OVERNIGHT.
MIXING HEIGHT.......1000 FT AGL.
TRANSPORT WINDS.....WEST 13 TO 22 MPH UNTIL 0400, THEN AROUND 12
MPH.
SMOKE DISPERSAL.....POOR.
HAINES INDEX........2.
TIME (MST) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........45 40 40 35 25 20 20 15 10 10 5 5
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CHC OF PCPN (%).10 0 0 0 0 0 0 0 0 0 0 0
TEMP............8 8 8 9 8 9 8 8 7 7 6 7
RH..............78 78 79 79 77 73 74 73 74 73 71 68
20 FT WIND DIR..W W W W W W W W W W W W
20 FT WIND SPD..9 9 9 10 14 12 9 8 7 6 6 6
20 FT WIND GUST.14 14 14 16 21 18 14 13 11 10 8 8
MIX HGT (KFT)...1.5 1.5 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0
TRANSP WIND DIR.W W W W W W W W W W W W
TRANSP WIND SPD.16 16 17 18 22 20 16 15 14 13 12 12
HAINES INDEX....2 2 2 2 2 2 2 2 2 2 2 2
SDSPL KT-FT/100024 18 18 20 23 21 17 16 15 13 12 12
WEDNESDAY
SKY/WEATHER.........MOSTLY SUNNY (25-35 PERCENT). CHANCE OF SNOW
LATE IN THE AFTERNOON.
CHANCE OF PCPN......30 PERCENT.
MAX TEMPERATURE.....AROUND 30.
MIN HUMIDITY........49 PERCENT.
WIND (20 FT)........LIGHT WINDS UNTIL 0900, THEN WEST 7 TO 12 MPH
WITH GUSTS TO AROUND 18 MPH.
MIXING HEIGHT.......2500 FT AGL UNTIL 1100, THEN 3500 FT AGL UNTIL
1700, THEN 1500 FT AGL.
TRANSPORT WINDS.....WEST 13 TO 21 MPH UNTIL 1100, THEN 23 TO 29 MPH
UNTIL 1600, THEN 14 TO 18 MPH.
SMOKE DISPERSAL.....POOR UNTIL 1000, THEN FAIR EARLY IN THE MORNING
INCREASING TO GOOD IN THE AFTERNOON UNTIL 1600,
THEN POOR.
HAINES INDEX........2.
TIME (MST) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........10 10 10 10 15 20 30 35 45 45 45 40
WEATHER COV..... CHC
WEATHER TYPE.... SN
TSTM COV........
CHC OF PCPN (%).0 0 0 0 10 10 10 10 10 10 10 30
TEMP............7 8 11 17 21 26 27 29 30 29 27 26
RH..............63 62 63 55 52 49 51 52 54 59 64 70
20 FT WIND DIR..W W W W W W W W W W W W
20 FT WIND SPD..6 6 6 7 9 10 11 11 12 11 9 7
20 FT WIND GUST.10 10 10 11 14 16 17 17 18 17 14 11
MIX HGT (KFT)...1.0 1.0 1.0 2.0 2.5 3.0 3.0 3.5 3.5 3.0 2.5 1.5
TRANSP WIND DIR.W W W W W W W W W W W W
TRANSP WIND SPD.13 13 13 17 21 24 25 28 29 23 18 14
HAINES INDEX....2 2 2 2 2 2 2 2 2 2 2 2
SDSPL KT-FT/100013 13 13 28 44 64 71 82 90 59 37 20
FORECAST DAYS 3 THROUGH 5
THURSDAY
MOSTLY CLOUDY. CHANCE OF SNOW. LOWS IN THE LOWER 20S. HIGHS IN
THE UPPER 30S. WEST WINDS AROUND 7 MPH.
FRIDAY
PARTLY CLOUDY. CHANCE OF SNOW. LOWS IN THE UPPER 20S. HIGHS IN
THE MID 40S. LIGHT WINDS.
SATURDAY
MOSTLY CLOUDY. SNOW. LOWS IN THE MID 20S. HIGHS IN THE UPPER 30S.
LIGHT WINDS.
FORECASTER...ROWE
REQUESTED BY...GRANT MARTIN
TYPE OF REQUEST...PRESCRIBED
.TAG 2426925.0/RIW
.DELDT 11/19/24
.FORMATTERVERSION 2.0.0
.EMAIL GRANT.MARTIN@USDA.GOV,JOHN.ELLINGTON@USDA.GOV
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