867
FNUS73 KDMX 111149
FWSDMX
SPOT FORECAST FOR SLEEPER PILE...USFWS
NATIONAL WEATHER SERVICE DES MOINES IA
549 AM CST THU DEC 11 2025
FORECAST IS BASED ON IGNITION TIME OF 0700 CST ON DECEMBER 11.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.
AN INITIAL OBSERVATION AT IGNITION AND A MID BURN OBSERVATION ARE REQUIRED.
PLEASE RELAY THEM TO THE NATIONAL WEATHER SERVICE FOR EACH PRESCRIBED BURN.
DISCUSSION
WIND TODAY WILL BE OUT OF THE SOUTHEAST AT 10-15 MPH. LIGHT SNOW
WILL MOVE INTO THE AREA AROUND 9-10 AM THIS MORNING AND
CONTINUING THROUGH THIS AFTERNOON BEFORE TAPERING OFF THIS
EVENING. SNOW ACCUMULATION OF 2-3 INCHES EXPECTED. RELATIVE
HUMIDITY WILL BE OVER 80% ALL DAY.
REST OF TODAY
SKY/WEATHER.........MOSTLY CLOUDY (80-90 PERCENT). CHANCE OF SNOW
LATE IN THE MORNING. SNOW IN THE AFTERNOON,
THEN SNOW LIKELY LATE IN THE AFTERNOON.
MAX TEMPERATURE.....AROUND 20.
MIN HUMIDITY........83 PERCENT.
WIND (20 FT)........LIGHT WINDS BECOMING SOUTHEAST 5 TO 9 MPH IN
THE LATE MORNING AND AFTERNOON.
MIXING HEIGHT.......1100 FT AGL.
TRANSPORT WINDS.....SOUTHEAST 6 TO 15 MPH.
SMOKE DISPERSAL.....POOR (2200 KNOT-FT) EARLY IN THE MORNING
INCREASING TO FAIR (13000 KNOT-FT) IN THE
AFTERNOON.
GFDI................1.
TIME (CST) 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........77 89 89 90 89 95 95 94 95 94 96
WEATHER COV..... CHC CHC CHC DEF DEF DEF DEF DEF LKY
WEATHER TYPE.... SN SN SN SN SN SN SN SN SN
TSTM COV........
TEMP............9 11 12 14 15 17 18 18 19 20 20
RH..............87 83 84 84 88 88 88 96 96 92 92
20 FT WIND DIR..SE SE SE SE S S SE SE SE SE E
20 FT WIND SPD..2 3 5 7 7 8 9 9 8 8 7
20 FT WIND GUST.6 7 9 12 13 14 14 14 14 14 13
MIX HGT (KFT)...0.4 0.6 0.8 0.9 0.9 1.1 1.0 1.0 1.0 1.0 1.0
TRANSP WIND DIR.SE S S S S S S S SE SE SE
TRANSP WIND SPD.6 8 10 12 13 13 15 14 13 14 12
GFDI............0 0 1 1 1 1 1 1 1 1 1
SMOKE DISPERSAL.2 4 7 9 10 12 13 12 11 12 11
SMOKE CAT.......PR PR PR PR PR PR PR PR PR PR PR
TONIGHT
SKY/WEATHER.........CLOUDY (85-95 PERCENT). SNOW LIKELY EARLY IN
THE EVENING, THEN CHANCE OF SNOW EARLY IN THE
EVENING. SLIGHT CHANCE OF SNOW LATE IN THE
EVENING.
MIN TEMPERATURE.....AROUND 12.
MAX HUMIDITY........100 PERCENT.
WIND (20 FT)........EAST WINDS 5 TO 7 MPH SHIFTING TO THE NORTHWEST
OVERNIGHT.
MIXING HEIGHT.......400 FT AGL.
TRANSPORT WINDS.....EAST 6 TO 10 MPH SHIFTING TO THE NORTHWEST 7 TO
10 MPH OVERNIGHT.
SMOKE DISPERSAL.....POOR (2100 KNOT-FT).
GFDI................1.
TIME (CST) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........97 94 90 81 80 81 83 84 84 85 88 88
WEATHER COV.....LKY LKY CHC SCH
WEATHER TYPE....SN SN SN SN
TSTM COV........
TEMP............19 19 18 17 17 16 16 17 17 15 15 14
RH..............96 96 96 96 96 96 96 92 92 100 96 96
20 FT WIND DIR..E E E E E NE N N N NW NW NW
20 FT WIND SPD..7 6 6 6 5 5 5 5 5 6 6 7
20 FT WIND GUST.13 12 12 10 9 9 8 8 8 9 10 13
MIX HGT (KFT)...1.0 1.1 0.9 0.8 0.4 0.4 0.5 0.4 0.5 0.5 0.6 0.7
TRANSP WIND DIR.E E E E E NE N N NW NW NW NW
TRANSP WIND SPD.10 9 9 7 6 6 7 7 7 8 9 10
GFDI............1 1 1 1 1 1 1 1 1 1 1 1
SMOKE DISPERSAL.9 9 8 5 2 2 3 3 3 4 5 6
SMOKE CAT.......PR PR PR PR PR PR PR PR PR PR PR PR
FRIDAY
SKY/WEATHER.........MOSTLY CLOUDY (75-85 PERCENT).
MAX TEMPERATURE.....AROUND 20.
MIN HUMIDITY........83 PERCENT.
WIND (20 FT)........NORTHWEST WINDS 8 TO 17 MPH INCREASING TO 15 TO
20 MPH IN THE AFTERNOON.
MIXING HEIGHT.......2300 FT AGL.
TRANSPORT WINDS.....NORTHWEST 12 TO 18 MPH INCREASING TO 22 TO 26
MPH IN THE LATE MORNING AND AFTERNOON.
SMOKE DISPERSAL.....POOR (7100 KNOT-FT) EARLY IN THE MORNING
INCREASING TO GOOD (51500 KNOT-FT) IN THE
AFTERNOON.
GFDI................3.
TIME (CST) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........85 83 75 74 72 74 76 77 79 80 81 83
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
TEMP............14 13 12 15 17 18 18 18 16 14 12 10
RH..............100 100 100 100 100 92 88 84 88 88 87 83
20 FT WIND DIR..NW NW NW NW NW NW NW NW NW NW NW NW
20 FT WIND SPD..8 10 12 13 15 17 18 20 20 18 17 15
20 FT WIND GUST.14 16 18 21 23 24 25 25 25 25 24 24
MIX HGT (KFT)...0.7 0.9 1.0 1.5 1.9 2.1 2.2 2.3 2.3 2.2 1.9 1.6
TRANSP WIND DIR.NW NW NW NW NW NW NW NW NW NW NW NW
TRANSP WIND SPD.12 12 14 18 22 24 25 26 26 25 24 22
GFDI............1 1 1 2 2 3 3 4 3 3 3 3
SMOKE DISPERSAL.7 9 12 25 35 44 49 52 51 47 39 31
SMOKE CAT.......PR PR PR PR PR FR FR FR FR FR PR PR
FORECASTER...HAGENHOFF
REQUESTED BY...UNION SLOUGH NWR
TYPE OF REQUEST...PRESCRIBED
.TAG 2527264.2/DMX
.DELDT 12/11/25
.FORMATTERVERSION 2.0.0
.EMAIL TREVER_ELG@FWS.GOV
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