399
FNUS75 KRIW 271135
FWSRIW
SPOT FORECAST FOR OCEAN LAKE RX PONDS 1 AND 2...BLM WY-WRBBD
NATIONAL WEATHER SERVICE RIVERTON WY
535 AM MDT THU MAR 27 2025
FORECAST IS BASED ON IGNITION TIME OF 0600 MDT ON MARCH 27.
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER
SERVICE
DISCUSSION
LIGHT WINDS AND CLEAR SKIES THIS MORNING. ELEVATED FIRE WEATHER
CONDITIONS WILL BE IN PLACE THIS AFTERNOON, WITH NEAR-RECORD HIGH
TEMPERATURES AND RH VALUES AROUND 15 PERCENT. SOUTHWEST WINDS, WITH
GUSTS OF 25 TO 30 MPH, WILL ARRIVE BETWEEN 1400 AND 1600 AND
CONTINUE THROUGH THE EVENING BEFORE DECREASING BY 2200. A COLD FRONT
WILL ARRIVE BETWEEN 0100 AND 0300, TURNING WINDS TO THE NORTHWEST
AND INCREASING WIND GUSTS UP TO 20 MPH. THESE WINDS WILL DECREASE
SLIGHTLY BY SUNRISE FRIDAY MORNING, BECOMING 10 MPH OR LESS BY 1100.
TEMPERATURES WILL BE 10 DEGREES COOLER FRIDAY, WHILE WINDS REMAIN
LIGHT.
..THUNDERSTORMS IMPLY STRONG GUSTY AND ERRATIC WINDS
TODAY
SKY/WEATHER.........SUNNY (10-20 PERCENT) THEN BECOMING PARTLY
SUNNY (50-60 PERCENT).
CWR.................0 PERCENT.
CHANCE OF PCPN......0 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....AROUND 74.
MIN HUMIDITY........19 PERCENT.
WIND (20 FT)........LIGHT WINDS UNTIL 1400, THEN SOUTHWEST 10 TO 16
MPH.
RIDGETOP WIND.......NORTHWEST AROUND 10 MPH UNTIL 0800, THEN LIGHT
UNTIL 1300, THEN SOUTHEAST AROUND 10 MPH UNTIL
1400, THEN SOUTHWEST UNTIL 1500, THEN AROUND 25
MPH.
MIXING HEIGHT.......2000 FT AGL UNTIL 1300, THEN 4000 FT AGL UNTIL
1400, THEN 11500 FT AGL UNTIL 1700.
TRANSPORT WINDS.....WEST AROUND 8 MPH UNTIL 0700, THEN NORTHWEST 7
TO 8 MPH UNTIL 1000, THEN LIGHT UNTIL 1200,
THEN SOUTHWEST 8 TO 12 MPH UNTIL 1400, THEN 21
TO 30 MPH.
SMOKE DISPERSAL.....POOR UNTIL 1200. EXCELLENT AFTER 1500.
TIME (MDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........5 5 10 5 5 0 5 5 10 15 25 55
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
CHC OF PCPN (%).0 0 0 0 0 0 0 0 0 0 0 0
CHC OF THDR (%).0 0 0 0 0 0 0 0 0 0 0 0
TEMP............41 41 42 47 53 58 63 66 70 74 73 71
RH..............65 68 68 63 52 44 36 29 23 20 19 20
20 FT WIND DIR..NW NW W W SW N E SE SW SW SW SW
20 FT WIND SPD..3 3 2 2 1 0 1 6 10 15 16 15
20 FT WIND GUST.5 4 1 2 7 13 18 18 18
RIDGE WIND DIR..NW NW W W SW SE E SE SW SW SW SW
RIDGE WIND SPD..10 10 5 5 5 5 5 10 15 25 25 25
MIX HGT (KFT)...0.5 0.5 0.5 0.5 0.5 1.5 2.0 4.0 10 11 12 9.5
TRANSP WIND DIR.W NW NW W SE SW SW SW SW SW SW SW
TRANSP WIND SPD.8 8 7 7 6 6 8 12 21 25 28 30
SDSPL KT-FT/10004 4 3 3 4 7 15 38 183 243 275 248
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY (60-70 PERCENT) THEN BECOMING
PARTLY CLOUDY (40-50 PERCENT) THEN BECOMING
MOSTLY CLOUDY (60-70 PERCENT).
CWR.................0 PERCENT.
CHANCE OF PCPN......0 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....AROUND 43.
MAX HUMIDITY........67 PERCENT.
WIND (20 FT)........SOUTHWEST WINDS 12 TO 14 MPH WITH GUSTS TO
AROUND 20 MPH UNTIL 2100, THEN WEST 7 TO 10 MPH
WITH GUSTS TO AROUND 19 MPH UNTIL 2300, THEN
LIGHT UNTIL 0300, THEN NORTHWEST AROUND 7 MPH
WITH GUSTS TO AROUND 20 MPH.
RIDGETOP WIND.......WEST 15 TO 20 MPH UNTIL 2300, THEN SOUTHEAST
AROUND 10 MPH UNTIL 0100, THEN NORTHEAST UNTIL
0300, THEN NORTHWEST.
MIXING HEIGHT.......5500 FT AGL UNTIL 1900, THEN 500 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 17 TO 24 MPH UNTIL 2200, THEN 10 TO
15 MPH UNTIL 0200, THEN NORTHWEST 14 TO 17
MPH.
SMOKE DISPERSAL.....VERY GOOD UNTIL 1900. POOR AFTER 2300.
TIME (MDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........65 60 50 45 45 40 40 45 55 60 65 70
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
CHC OF PCPN (%).0 0 0 0 0 0 0 0 0 0 0 0
CHC OF THDR (%).0 0 0 0 0 0 0 0 0 0 0 0
TEMP............70 66 62 57 56 54 53 52 50 49 48 47
RH..............24 28 33 39 43 47 50 53 56 58 61 64
20 FT WIND DIR..SW SW W W W S SE E N NW NW NW
20 FT WIND SPD..14 13 12 10 7 5 3 4 6 7 7 7
20 FT WIND GUST.18 19 20 19 14 7 4 8 14 20 18 13
RIDGE WIND DIR..SW SW W W W S SE E N NW NW NW
RIDGE WIND SPD..20 20 20 15 15 10 10 10 10 15 15 15
MIX HGT (KFT)...5.5 1.0 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5
TRANSP WIND DIR.SW W S SW S SW SW SW NW NW W NW
TRANSP WIND SPD.24 21 20 17 14 10 9 10 17 16 14 14
SDSPL KT-FT/1000118 16 11 9 7 5 5 5 10 10 8 7
FRIDAY
SKY/WEATHER.........CLOUDY (85-95 PERCENT).
CWR.................1 PERCENT.
CHANCE OF PCPN......10 PERCENT.
CHANCE OF THUNDER...3 PERCENT.
MAX TEMPERATURE.....AROUND 62.
MIN HUMIDITY........28 PERCENT.
WIND (20 FT)........WEST WINDS 7 TO 13 MPH WITH GUSTS TO AROUND 18
MPH UNTIL 1100, THEN LIGHT.
RIDGETOP WIND.......WEST 15 TO 20 MPH UNTIL 1100, THEN NORTHWEST
AROUND 10 MPH UNTIL 1200, THEN LIGHT UNTIL
1400, THEN SOUTHWEST AROUND 10 MPH UNTIL 1700,
THEN LIGHT.
MIXING HEIGHT.......1500 FT AGL UNTIL 1100. 5500 FT AGL AFTER 1400.
TRANSPORT WINDS.....WEST 12 TO 21 MPH UNTIL 1200, THEN SOUTHWEST 8
TO 12 MPH.
SMOKE DISPERSAL.....POOR UNTIL 0900. FAIR AFTER 1500.
TIME (MDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........80 80 80 80 80 80 80 80 85 90 90 95
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
CHC OF PCPN (%).0 0 0 0 0 0 10 10 10 10 10 10
CHC OF THDR (%).0 0 0 0 0 0 0 0 0 0 0 0
TEMP............46 47 48 49 51 54 57 58 60 61 60 59
RH..............65 66 65 62 56 48 41 36 33 32 32 34
20 FT WIND DIR..W W W W NW NW NW W SW S SW NW
20 FT WIND SPD..7 10 12 13 10 6 2 2 3 4 3 2
20 FT WIND GUST.10 12 16 18 14 10 5 4 5 6 5 4
RIDGE WIND DIR..W W W W NW NW NW W SW S SW NW
RIDGE WIND SPD..15 15 20 20 15 10 5 5 10 10 10 5
MIX HGT (KFT)...0.5 0.5 0.5 1.0 1.5 2.5 3.5 4.0 5.0 5.5 5.5 5.5
TRANSP WIND DIR.SW W W W W W SW SW SW SW SW SW
TRANSP WIND SPD.14 17 20 21 17 12 8 9 9 10 10 12
SDSPL KT-FT/10007 9 10 17 23 25 25 34 40 51 50 53
FORECAST DAYS 3 THROUGH 5
SATURDAY
MOSTLY CLOUDY. CHANCE OF SHOWERS. LOWS IN THE LOWER 30S. HIGHS IN
THE MID 50S. LIGHT WINDS.
SUNDAY
COOLER. MOSTLY CLOUDY. SHOWERS, SNOW SHOWERS LIKELY AND SLIGHT
CHANCE OF THUNDERSTORMS. LOWS AROUND 30. HIGHS IN THE MID 40S.
NORTHEAST WINDS AROUND 7 MPH.
MONDAY
MOSTLY CLOUDY. LOWS IN THE UPPER 20S. HIGHS IN THE MID 50S. LIGHT
WINDS.
FORECASTER...LAVOIE
REQUESTED BY...SAM COFFIN
TYPE OF REQUEST...PRESCRIBED
.TAG 2507645.2/RIW
.DELDT 03/27/25
.FORMATTERVERSION 2.0.0
.EMAIL SCOFFIN@BLM.GOV
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