573
FNUS73 KDMX 091229
FWSDMX
SPOT FORECAST FOR BROWNS WOODS PRESCRIBED FIRE...POLK COUNTY CONSERVATION
NATIONAL WEATHER SERVICE DES MOINES IA
629 AM CST MON FEB 9 2026
FORECAST IS BASED ON IGNITION TIME OF 0800 CST ON FEBRUARY 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
MINOR FIRE WEATHER CONCERNS TODAY, WITH WARM, DRY AND BREEZY
CONDITIONS EXPECTED. WINDS WILL BEGIN LIGHT OUT OF THE SOUTHEAST
THIS MORNING, THEN BECOME BREEZY AND MORE SOUTH SOUTHWESTERLY
THROUGH THE DAY, WITH GUSTS OF 25 TO 30 MPH POSSIBLE BY THIS
AFTERNOON. RELATIVE HUMIDITY VALUES WILL DRY OUT INTO THE UPPER-30
PERCENTS THIS AFTERNOON. A STEEP INVERSION WILL BE IN PLACE THIS
MORNING, LIMITING SMOKE DISPERSAL, BUT SHOULD STEADILY IMPROVE AS
THE MIXED LAYER GROWS THROUGH THE DAY.
REST OF TODAY
SKY/WEATHER.........PARTLY SUNNY (50-60 PERCENT).
MAX TEMPERATURE.....AROUND 63.
MIN HUMIDITY........38 PERCENT.
WIND (20 FT)........SOUTH WINDS 6 TO 15 MPH INCREASING TO 10 TO 14
MPH LATE IN THE AFTERNOON.
MIXING HEIGHT.......1900 FT AGL.
TRANSPORT WINDS.....SOUTH 10 TO 18 MPH SHIFTING TO THE SOUTHWEST 17
TO 24 MPH IN THE AFTERNOON.
SMOKE DISPERSAL.....POOR (2600 KNOT-FT) EARLY IN THE MORNING
INCREASING TO GOOD (35900 KNOT-FT) IN THE
AFTERNOON.
GFDI................6.
TIME (CST) 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........62 69 61 63 55 62 63 44 43 50
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
TEMP............28 33 39 45 50 56 61 63 63 61
RH..............85 78 67 58 52 43 39 38 39 42
20 FT WIND DIR..SE S S S S S S S S S
20 FT WIND SPD..6 7 8 10 12 13 15 14 13 10
20 FT WIND GUST.10 13 15 18 20 22 24 24 23 20
MIX HGT (KFT)...0.3 0.3 0.7 1.0 1.3 1.5 1.7 1.9 1.5 1.1
TRANSP WIND DIR.S S S S S S S SW SW S
TRANSP WIND SPD.10 13 14 18 18 21 24 21 18 17
GFDI............1 1 2 3 4 7 10 10 8 6
SMOKE DISPERSAL.3 4 8 16 21 27 36 34 24 16
SMOKE CAT.......PR PR PR PR PR PR PR PR PR PR
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY (50-60 PERCENT) THEN BECOMING
PARTLY CLOUDY (30-40 PERCENT) THEN BECOMING
MOSTLY CLOUDY (65-75 PERCENT).
MIN TEMPERATURE.....AROUND 34.
MAX HUMIDITY........89 PERCENT.
WIND (20 FT)........SOUTHWEST WINDS 8 TO 9 MPH SHIFTING TO THE
NORTHWEST 10 TO 13 MPH OVERNIGHT.
MIXING HEIGHT.......600 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 17 TO 20 MPH SHIFTING TO THE NORTH 21
TO 23 MPH OVERNIGHT.
SMOKE DISPERSAL.....FAIR (22200 KNOT-FT) EARLY IN THE EVENING
DECREASING TO POOR (8100 KNOT-FT) LATE IN THE
NIGHT.
GFDI................3.
TIME (CST) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM
SKY (%).........61 52 41 29 37 65
WEATHER COV.....
WEATHER TYPE....NONE NONE NONE NONE NONE NONE
TSTM COV........
TEMP............58 51 49 46 41 37
RH..............49 66 71 71 79 85
20 FT WIND......S 9 SW 8 W 9 NW 10 N 12 N 13
20 FT WIND GUST.18 15 16 20 22 23
MIX HGT (FT)....900 700 600 600 900 1100
TRANSPORT WIND..SW 17 SW 18 W 17 NW 20 N 22 N 21
GFDI............4 2 2 3 3 3
SMOKE DISPERSAL.13 11 8 10 17 20
SMOKE CAT.......POOR POOR POOR POOR POOR POOR
TUESDAY
SKY/WEATHER.........PARTLY SUNNY (55-65 PERCENT) THEN BECOMING
SUNNY (15-25 PERCENT).
MAX TEMPERATURE.....AROUND 49.
MIN HUMIDITY........44 PERCENT.
WIND (20 FT)........NORTHWEST WINDS 8 TO 13 MPH.
MIXING HEIGHT.......2800 FT AGL.
TRANSPORT WINDS.....NORTHWEST 15 TO 24 MPH.
SMOKE DISPERSAL.....FAIR (15000 KNOT-FT) EARLY IN THE MORNING
INCREASING TO GOOD (57600 KNOT-FT) IN THE
AFTERNOON.
GFDI................4.
TIME (CST) 6 AM 9 AM NOON 3 PM
SKY (%).........81 64 55 21
WEATHER COV.....
WEATHER TYPE....NONE NONE NONE NONE
TSTM COV........
TEMP............36 37 44 49
RH..............85 82 58 44
20 FT WIND......NW 12G20 NW 13G21 NW 13G21 NW 12G18
MIX HGT (FT)....1300 1800 2300 2800
TRANSPORT WIND..N 21 N 23 NW 22 NW 23
GFDI............2 3 4 5
SMOKE DISPERSAL.24 37 43 56
SMOKE CAT.......POOR POOR FAIR FAIR
FORECASTER...DODSON
REQUESTED BY...DOUGLAS TODEY
TYPE OF REQUEST...PRESCRIBED
.TAG 2602126.0/DMX
.DELDT 02/09/26
.FORMATTERVERSION 2.0.0
.EMAIL DOUGLAS.TODEY@POLKCOUNTYIOWA.GOV
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