931
FNUS75 KSLC 041549
FWSSLC
SPOT FORECAST FOR DUFFY CREEK...BOX ELDER COUNTY FIRE MARSHAL
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
849 AM MST SUN JAN 4 2026
FORECAST IS BASED ON IGNITION TIME OF 0700 MST ON JANUARY 05.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.
DISCUSSION
AN ACTIVE FORECAST PERIOD CHARACTERIZED BY MULTIPLE
IMPULSES IS EXPECTED THROUGHOUT THE UPCOMING WEEK, BEFORE FINALLY
TAPERING OFF INTO THE WEEKEND. THROUGH THE MIDDLE PART OF THE
WEEK THESE SYSTEMS WILL TEND TO BE MORE MILD GIVEN THE DEEPER FLOW
PATTERN, AND SNOW LEVELS WILL TEND TO BE AROUND 4500-5000 FT OR
SO. AS SUCH, SOME SNOW WILL BE POSSIBLE, ESPECIALLY AT NIGHT, BUT
A RAIN SNOW MIX WILL BE LIKELY AT TIMES. FOR THE IMPULSE THROUGH
MIDWEEK (PEAK PRECIP RATES EXPECTED SUNDAY NIGHT INTO MONDAY),
TOTAL WATER AMOUNTS ARE FORECAST AROUND 0.15" TO 0.25", WITH
LITTLE TO A TRACE IN THE WAY OF CORRESPONDING SNOW ACCUMULATION.
THE FOLLOWING SYSTEM THROUGH THE LATTER PART OF THE WORK WEEK IS
EXPECTED TO HAVE MORE COLD AIR ASSOCIATED WITH IT, BUT LESS
MOISTURE. SNOW LEVELS WILL DROP LOW ENOUGH TO SUPPORT SNOW, BUT
FORECAST WATER AMOUNTS SIT MORE IN THE 0.03" TO 0.10" RANGE, WITH
ASSOCIATED SNOW TOTALS AROUND 0.25" TO 0.50". THROUGHOUT THE WEEK
MIXING DEPTH WILL LIKELY BE LIMITED, GENERALLY AROUND 2500-3500 FT
AT BEST. BRIEF INCREASES TO TRANSPORT WINDS, MOST LIKELY
WEDNESDAY/THURSDAY, IN TURN OFFER THE BEST WINDOW FOR AFTERNOON
CLEARING INDICES IN EXCESS OF 500.
MONDAY
SKY/WEATHER.........MOSTLY CLOUDY (75-85 PERCENT CLOUD COVER) THEN
BECOMING PARTLY CLOUDY (60-70 PERCENT CLOUD
COVER). CHANCE OF RAIN AND SNOW EARLY IN THE
MORNING. CHANCE OF SNOW LATE IN THE MORNING.
CHANCE OF RAIN LATE IN THE AFTERNOON.
CWR.................15 PERCENT.
CHANCE OF PCPN......50 PERCENT.
CHANCE OF LIGHTNING.4 PERCENT.
MAX TEMPERATURE.....40-43.
MIN HUMIDITY........73-77 PERCENT.
WIND (20 FT)........WINDS SHIFT FROM SE TO NW IN THE MORNING, INCREASING
TO 7-15 MPH BY LATE MORNING INTO THE EARLY AFTERNOON.
GUSTS 20-25 MPH EXPECTED THROUGH THE AFTERNOON.
MIXING HEIGHT.......2700 FT AGL.
CLIMATOLOGY......20-30TH PERCENTILE.
TRANSPORT WINDS.....SOUTHWEST AROUND 10 MPH BECOMING WEST AROUND 13
MPH IN THE AFTERNOON.
CLEARING INDEX......280.
MONDAY NIGHT
SKY/WEATHER.........PARTLY CLOUDY (55-65 PERCENT CLOUD COVER).
SLIGHT CHANCE OF SNOW LATE IN THE EVENING.
CWR.................5 PERCENT.
CHANCE OF PCPN......20 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MIN TEMPERATURE.....AROUND 30.
MAX HUMIDITY........88-90 PERCENT.
WIND (20 FT)........WINDS BECOMING DOWN-TERRAIN TO SW AROUND 3-7 MPH.
MIXING HEIGHT.......800 FT AGL.
TRANSPORT WINDS.....SOUTH 8 TO 9 MPH.
TUESDAY
SKY/WEATHER.........MOSTLY CLOUDY (70-80 PERCENT CLOUD COVER) THEN
BECOMING PARTLY CLOUDY (60-70 PERCENT CLOUD
COVER). SLIGHT CHANCE OF SNOW IN THE MORNING.
CWR.................0 PERCENT.
CHANCE OF PCPN......20 PERCENT.
CHANCE OF LIGHTNING.1 PERCENT.
MAX TEMPERATURE.....39-42.
MIN HUMIDITY........75-80 PERCENT.
WIND (20 FT)........SOUTHWEST WINDS 5-10 MPH INCREASING TO 10-15
MPH LATE MORNING INTO THE AFTERNOON. GUSTS TO
AROUND 20-25 MPH.
MIXING HEIGHT.......2400 FT AGL.
CLIMATOLOGY......20-30TH PERCENTILE.
TRANSPORT WINDS.....SOUTHWEST 8 TO 17 MPH.
CLEARING INDEX......370.
FORECASTER...WARTHEN
REQUESTED BY...SPENCER NEWMAN
TYPE OF REQUEST...PRESCRIBED
.TAG 2528240.0/SLC
.DELDT 01/04/26
.FORMATTERVERSION 2.0.0
.EMAIL SNEWMAN@BOXELDERCOUNTYUT.GOV
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