144
FNUS75 KBYZ 030903
FWSBYZ
SPOT FORECAST FOR HORSETHIEF SW PRESCRIBED BURN...BLM
NATIONAL WEATHER SERVICE BILLINGS MT
303 AM MDT FRI APR 3 2026
FORECAST IS BASED ON IGNITION TIME OF 0800 MDT ON APRIL 07.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.
PLEASE CONTACT OUR OFFICE IF YOU HAVE QUESTIONS
OR CONCERNS WITH THIS FORECAST.
DISCUSSION
AS OF THIS TIME THE BURN SITE VICINITY HAD RECEIVED AROUND 0.11
OF PRECIP WITH ANOTHER FEW HUNDRETHS POSSIBLE THROUGH THE DAY.
MODELS SUGGEST A WEATHER SYSTEM MOVING ACROSS SOUTHERN CANADA
TUESDAY MAY PUSH A COLD FRONT THROUGH THE BURN SITE LATE IN THE
DAY OR TOWARD EVENING. THE FRONT LOOKS GENERALLY DRY WITH JUST A
SLIGHT CHANCE OF WETTING RAIN. GUSTY NORTHWEST WINDS ARE LIKELY
WITH THE FRONTAL PASSAGE.
UNSTABLE NORTHWEST FLOW MAY PRODUCE RAIN/SNOW SHOWERS ON
WEDNESDAY WITH A MODEST CHANCE OF WETTING RAIN (27% CHANCE 0.10 OF
MORE). THERE IS SOME INDICATION OF A TRAILING SECONDARY FRONTAL
SYSTEM THURSDAY WITH CHANCE OF WETTING RAIN BETTER OR EQUAL TO
WEDNESDAY, BUT THERE REMAINS ABOVE AVERAGE UNCERTAINTY REGARDING
THIS SECONDARY SYSTEM.
OVERALL...NEXT WEEK HAS DECENT CHANCE OF WETTING PRECIPITATION
WITH UNSETTLED WEATHER.
PLEASE NOTE THE TABULAR FORECASTS INCLUDED ARE SUBJECT TO NOTABLE
CHANGES THIS FAR OUT. BT
TUESDAY
SKY/WEATHER.........PARTLY SUNNY THEN BECOMING SUNNY.
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MAX TEMPERATURE.....70-74.
MIN HUMIDITY........18-23 PERCENT.
WIND (20 FT)........
SLOPE/VALLEY.......WEST WINDS 6 TO 15 MPH WITH GUSTS TO AROUND 26
MPH.
RIDGETOP...........WEST AROUND 25-30 MPH.
MIXING HEIGHT.......3800 FT AGL.
TRANSPORT WINDS.....WEST AROUND 20 MPH.
TIME (MDT) 8 AM 11 AM 2 PM 5 PM
SKY (%).........58 58 23 23
WEATHER COV.....
WEATHER TYPE....NONE NONE NONE NONE
TSTM COV........
CHC OF LTNG (%).0 0 0 0
TEMP............40 59 71 71
RH..............77 41 24 23
20 FT WIND......SW 6G11 SW 8G16 W 14G21 W 17G26
TUESDAY NIGHT
SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS THROUGH
THE NIGHT. CHANCE OF SNOW SHOWERS AFTER 3 AM.
CWR.................4 PERCENT.
MIN TEMPERATURE.....32-36.
MAX HUMIDITY........68-76 PERCENT.
WIND (20 FT)........
SLOPE/VALLEY.......NORTHWEST WINDS 5 TO 14 MPH. GUSTS UP TO 28 MPH
IN THE EVENING THEN 18 MPH AFTER 3 AM.
RIDGETOP...........WEST AROUND 35 MPH.
MIXING HEIGHT.......3400 FT AGL EARLY IN THE EVENING DECREASING TO
3300 FT AGL OVERNIGHT.
TRANSPORT WINDS.....NORTHWEST AROUND 18 MPH.
TIME (MDT) 6 PM 9 PM MIDNGT 3 AM
SKY (%).........56 56 62 62
WEATHER COV.....CHANCE CHANCE CHANCE CHANCE
WEATHER TYPE....RNSHWR RNSHWR RNSHWR RNSN
TSTM COV........
CHC OF LTNG (%).0 0 0 0
TEMP............69 56 49 41
RH..............25 40 53 66
20 FT WIND......W 14G22 W 10G17 NW 8G14 N 9G16
WEDNESDAY
SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS IN THE
MORNING. CHANCE OF SNOW SHOWERS THROUGH THE
DAY.
CWR.................27 PERCENT.
MAX TEMPERATURE.....48-52.
MIN HUMIDITY........36-42 PERCENT.
WIND (20 FT)........
SLOPE/VALLEY.......NORTH WINDS 5 TO 14 MPH WITH GUSTS TO AROUND 23
MPH.
RIDGETOP...........WEST AROUND 25-30 MPH.
MIXING HEIGHT.......3000 FT AGL.
TRANSPORT WINDS.....NORTH AROUND 18 MPH.
TIME (MDT) 6 AM 9 AM NOON 3 PM
SKY (%).........87 87 68 68
WEATHER COV.....CHANCE CHANCE CHANCE CHANCE
WEATHER TYPE....RNSN SNSHWR SNSHWR SNSHWR
TSTM COV........
CHC OF LTNG (%).0 0 0 0
TEMP............37 38 47 49
RH..............64 62 44 38
20 FT WIND......N 9G16 N 10G17 N 12G19 N 14G23
FORECASTER...TESAR
REQUESTED BY...DAVID DAY
TYPE OF REQUEST...PRESCRIBED
.TAG 2608866.0/BYZ
.DELDT 04/03/26
.FORMATTERVERSION 2.0.0
.EMAIL DDAY@BLM.GOV
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