833
FNUS73 KDMX 091317
FWSDMX
SPOT FORECAST FOR SLEEPER PILE...USFWS
NATIONAL WEATHER SERVICE DES MOINES IA
717 AM CST TUE DEC 9 2025
FORECAST IS BASED ON IGNITION TIME OF 0800 CST ON DECEMBER 09.
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
WINDS WILL BE OUT OF THE SOUTH TODAY AT 10-15 MPH. BY THIS
AFTERNOON WINDS INCREASE WITH GUSTS OF 30-35 MPH THIS AFTERNOON
BEGINNING AROUND 2PM. RAIN CHANCES WILL ALSO INCREASE AFTER NOON
WITH WINTRY MIX INTO THE LATE AFTERNOON AND EARLY EVENING. TONIGHT
WINDS SHIFT TO OUT OF THE NORTHWEST AND BECOME STRONG, GUSTING
50-55+ MPH OVERNIGHT.
REST OF TODAY
SKY/WEATHER.........CLOUDY (85-95 PERCENT). RAIN LIKELY AND CHANCE
OF LIGHT FREEZING RAIN IN THE AFTERNOON. PATCHY
BLOWING SNOW EARLY IN THE AFTERNOON.
MAX TEMPERATURE.....AROUND 36.
MIN HUMIDITY........92 PERCENT.
WIND (20 FT)........SOUTH WINDS 5 TO 14 MPH WITH GUSTS TO AROUND 29
MPH INCREASING TO SOUTHWEST 17 TO 22 MPH WITH
GUSTS TO AROUND 33 MPH LATE IN THE AFTERNOON.
MIXING HEIGHT.......800 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 8 TO 10 MPH INCREASING TO 22 TO 23
MPH.
SMOKE DISPERSAL.....POOR (2600 KNOT-FT) EARLY IN THE MORNING
INCREASING TO FAIR (14500 KNOT-FT) IN THE
AFTERNOON.
GFDI................4.
TIME (CST) 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........81 78 84 89 91 93 95 99 99 98
WEATHER COV..... CHC CHC LKY LKY CHC
WEATHER TYPE.... FZR RN RN RN RN
TSTM COV........
TEMP............19 22 24 27 29 31 32 33 34 35
RH..............100 96 96 96 100 96 96 92 92 100
20 FT WIND DIR..SW S S S S S S S SW SW
20 FT WIND SPD..5 6 6 9 10 12 14 17 22 22
20 FT WIND GUST.13 14 15 18 21 24 29 31 32 33
MIX HGT (KFT)...0.4 0.4 0.4 0.5 0.5 0.6 0.6 0.7 0.8 0.7
TRANSP WIND DIR.W SW S S S S S SW SW SW
TRANSP WIND SPD.8 8 10 12 15 16 18 21 22 23
GFDI............1 1 1 2 2 3 4 6 6 6
SMOKE DISPERSAL.3 3 4 5 7 8 9 12 15 14
SMOKE CAT.......PR PR PR PR PR PR PR PR PR PR
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY (75-85 PERCENT). CHANCE OF RAIN
IN THE EVENING, THEN CHANCE OF SNOW AND SLIGHT
CHANCE OF RAIN OVERNIGHT.
MIN TEMPERATURE.....AROUND 20.
MAX HUMIDITY........100 PERCENT.
WIND (20 FT)........WINDY. WEST WINDS 22 TO 31 MPH WITH GUSTS TO
AROUND 48 MPH SHIFTING TO THE NORTHWEST 32 TO
36 MPH WITH GUSTS TO AROUND 59 MPH OVERNIGHT.
MIXING HEIGHT.......700 FT AGL.
TRANSPORT WINDS.....WEST 25 TO 32 MPH INCREASING TO NORTHWEST 36 TO
44 MPH OVERNIGHT.
SMOKE DISPERSAL.....EXCELLENT (74700 KNOT-FT) EARLY IN THE EVENING
DECREASING TO FAIR (15000 KNOT-FT) LATE IN THE
NIGHT.
GFDI................10 INCREASING TO 20 OVERNIGHT.
TIME (CST) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........91 87 74 67 66 73 77 88 88 90 89 85
WEATHER COV.....CHC SCH SCH SCH SCH CHC CHC CHC SCH
WEATHER TYPE....RN RN RN RN SN SN SN SN SN
TSTM COV........
TEMP............35 36 35 35 34 33 33 32 29 25 23 21
RH..............100 100 100 89 89 92 89 85 92 81 77 84
20 FT WIND DIR..W W W W W W W NW NW NW NW NW
20 FT WIND SPD..22 25 28 28 29 30 31 32 35 36 35 33
20 FT WIND GUST.35 37 39 41 45 47 48 55 59 55 56 55
MIX HGT (KFT)...0.7 0.8 0.8 1.0 1.2 1.3 1.3 1.6 1.5 1.3 2.0 1.8
TRANSP WIND DIR.W W W W W W NW NW NW NW NW NW
TRANSP WIND SPD.25 28 29 30 30 31 32 36 37 38 44 41
GFDI............6 8 9 12 13 14 16 21 22 22 23 19
SMOKE DISPERSAL.15 19 20 27 32 35 38 50 47 43 75 63
SMOKE CAT.......PR PR PR PR PR PR PR FR FR FR GD GD
WEDNESDAY
SKY/WEATHER.........MOSTLY CLOUDY (75-85 PERCENT).
MAX TEMPERATURE.....AROUND 24.
MIN HUMIDITY........81 PERCENT.
WIND (20 FT)........WINDY. NORTHWEST WINDS 23 TO 32 MPH WITH GUSTS
TO AROUND 52 MPH DECREASING TO 14 TO 21 MPH IN
THE AFTERNOON.
MIXING HEIGHT.......2200 FT AGL.
TRANSPORT WINDS.....NORTHWEST 33 TO 40 MPH DECREASING TO AROUND 18
MPH.
SMOKE DISPERSAL.....FAIR (29900 KNOT-FT) EARLY IN THE MORNING
INCREASING TO GOOD (58800 KNOT-FT) IN THE
AFTERNOON.
GFDI................13 DECREASING TO 5 LATE IN THE MORNING.
TIME (CST) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........77 85 86 84 80 80 79 81 82 84 86 87
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
TEMP............22 20 20 21 22 22 22 22 22 21 20 19
RH..............81 96 100 96 92 92 92 92 88 92 92 96
20 FT WIND DIR..NW NW NW NW NW NW NW NW NW NW NW NW
20 FT WIND SPD..32 32 31 28 25 24 23 21 20 18 16 14
20 FT WIND GUST.52 49 45 41 39 36 33 31 30 28 24 21
MIX HGT (KFT)...1.4 1.8 1.8 2.0 2.0 2.1 2.2 2.2 2.1 2.1 2.0 1.9
TRANSP WIND DIR.NW NW NW NW NW NW NW NW NW NW NW NW
TRANSP WIND SPD.40 37 33 29 28 26 25 24 22 21 20 18
GFDI............17 13 10 9 8 7 6 5 5 4 3 2
SMOKE DISPERSAL.51 59 53 49 49 49 47 45 41 37 34 30
SMOKE CAT.......FR FR FR FR FR FR FR FR FR PR PR PR
FORECASTER...HAGENHOFF
REQUESTED BY...UNION SLOUGH NWR
TYPE OF REQUEST...PRESCRIBED
.TAG 2527264.0/DMX
.DELDT 12/09/25
.FORMATTERVERSION 2.0.0
.EMAIL TREVER_ELG@FWS.GOV
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