911
FNUS75 KBYZ 201323
FWSBYZ
SPOT FORECAST FOR BOBCAT FENCE BURN PILES...BLM
NATIONAL WEATHER SERVICE BILLINGS MT
623 AM MST MON JAN 20 2025
FORECAST IS BASED ON IGNITION TIME OF 0700 MST ON JANUARY 20.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.
PLEASE CONTACT OUR OFFICE IF YOU HAVE QUESTIONS
OR CONCERNS WITH THIS FORECAST.
DISCUSSION
NORTHERLY FLOW WILL BE OVER THE BURN SITE TODAY WITH LOW MIXING HEIGHTS.
WEST WINDS WILL BE AROUND 5 MPH EARLY IN THE MORNING, BECOMING SOUTHWEST
5 TO 6 MPH LATE IN THE MORNING. HIGH TEMPERATURES WILL BE 6 TO 10 DEGREES.
MINIMUM HUMIDITIES WILL BE 43 TO 47 PERCENT. UPPER RIDGING TONIGHT WILL RESULT
IN A TIGHT PRESSURE GRADIENT OVER THE AREA. THIS WILL RESULT IN GUSTY WINDS.
WINDS WILL BE SOUTHWEST 6 TO 12 MPH INCREASING TO 16 TO 18 MPH WITH GUSTS TO
AROUND 26 MPH LATE IN THE EVENING. LOW TEMPERATURES WILL BE EARLY IN THE
EVENING AT 3 TO 7 DEGREES AND HUMIDITIES WILL BE 46 TO 50 PERCENT. AN UPPER
TROUGH WILL PUSH A COLD FRONT THROUGH THE AREA ON TUESDAY BRINGING A SLIGHT
CHANCE OF SNOW. EXPECT PATCHY BLOWING SNOW LATE THIS EVENING AND TUESDAY
MORNING. TUESDAY WILL BE MUCH WARMER WITH HIGHS IN THE LOW TO MID 30S.
HUMIDITIES WILL BE 46 TO 50 PERCENT AND WINDS WILL BE WEST 12 TO
18 MPH WITH GUSTS TO AROUND 26 MPH.
REST OF TODAY
SKY/WEATHER.........SUNNY.
CWR.................0 PERCENT.
MAX TEMPERATURE.....6-10.
MIN HUMIDITY........43-47 PERCENT.
WIND (20 FT)........
SLOPE/VALLEY.......WEST WINDS AROUND 5 MPH EARLY IN THE MORNING
BECOMING LIGHT, THEN BECOMING SOUTHWEST 5 TO 6
MPH LATE IN THE MORNING.
RIDGETOP...........NORTHWEST AROUND 30 MPH.
MIXING HEIGHT.......0 FT AGL EARLY IN THE MORNING INCREASING TO
1300 FT AGL IN THE AFTERNOON.
TRANSPORT WINDS.....WEST 8 TO 15 MPH SHIFTING TO THE SOUTH LATE IN
THE AFTERNOON.
TIME (MST) 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........8 8 7 3 4 5 3 4 11 22 31
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
TEMP............-11 -11 -9 -7 -4 -1 2 4 5 7 6
RH..............58 59 59 57 53 49 46 43 42 45 51
20 FT WIND DIR..W SW SW SW SW W W W W SW SW
20 FT WIND SPD..5 5 4 4 5 5 5 6 6 6 6
20 FT WIND GUST.7 6 6 8 10 10 11 12 11 11 10
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.
PATCHY BLOWING SNOW LATE IN THE EVENING. SLIGHT
CHANCE OF SNOW EARLY IN THE MORNING.
CWR.................0 PERCENT.
MIN TEMPERATURE.....3-7.
MAX HUMIDITY........46-50 PERCENT.
WIND (20 FT)........
SLOPE/VALLEY.......SOUTHWEST WINDS 6 TO 12 MPH INCREASING TO 16 TO
18 MPH WITH GUSTS TO AROUND 26 MPH LATE IN THE
EVENING.
RIDGETOP...........NORTHWEST AROUND 35 MPH.
MIXING HEIGHT.......100 FT AGL EARLY IN THE EVENING DECREASING TO 0
FT AGL OVERNIGHT.
TRANSPORT WINDS.....SOUTHWEST 15 TO 24 MPH SHIFTING TO THE WEST 25
TO 26 MPH OVERNIGHT.
TIME (MST) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........37 40 43 43 47 56 64 79 79 71 76 81
WEATHER COV..... PTY PTY PTY PTY PTY PTY SCH
WEATHER TYPE.... BSN BSN BSN BSN BSN BSN SBS
TSTM COV........
TEMP............7 8 7 7 7 10 12 15 18 19 21 22
RH..............50 50 48 47 47 48 47 46 47 47 47 46
20 FT WIND DIR..SW SW SW SW SW SW SW SW W W W W
20 FT WIND SPD..6 6 12 12 12 16 16 16 17 17 17 18
20 FT WIND GUST.10 10 17 17 17 22 22 22 25 25 25 26
TUESDAY
SKY/WEATHER.........MOSTLY CLOUDY. PATCHY BLOWING SNOW IN THE
MORNING. SLIGHT CHANCE OF SNOW THROUGH THE DAY.
CWR.................7 PERCENT.
MAX TEMPERATURE.....31-35.
MIN HUMIDITY........46-50 PERCENT.
WIND (20 FT)........
SLOPE/VALLEY.......WEST WINDS 12 TO 18 MPH WITH GUSTS TO AROUND 26
MPH.
RIDGETOP...........NORTHWEST 35 TO 40 MPH.
MIXING HEIGHT.......100 FT AGL EARLY IN THE MORNING INCREASING TO
1700 FT AGL IN THE AFTERNOON.
TRANSPORT WINDS.....WEST 24 TO 30 MPH.
TIME (MST) 6 AM 9 AM NOON 3 PM
SKY (%).........80 80 76 70
WEATHER COV.....S CHC S CHC S CHC S CHC
WEATHER TYPE....SN/BS SN/BS SNOW SNOW
TSTM COV........
TEMP............23 25 30 32
RH..............45 46 47 49
20 FT WIND......W 18G26 W 17G23 W 12G17 W 13G18
FORECASTER...ARTHUR
REQUESTED BY...DAVID DAY
TYPE OF REQUEST...PRESCRIBED
.TAG 2500677.2/BYZ
.DELDT 01/20/25
.FORMATTERVERSION 2.0.0
.EMAIL DDAY@BLM.GOV,RGRIFFIN@BLM.GOV
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page