418
FNUS73 KOAX 281326
FWSOAX
SPOT FORECAST FOR LAKE SHAWTEE WMA...IOWA DEPARTMENT OF NATURAL RESOURCES
NATIONAL WEATHER SERVICE OMAHA/VALLEY NE
826 AM CDT FRI AUG 28 2026
FORECAST IS BASED ON IGNITION TIME OF 1200 CDT ON AUGUST 28.
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER
SERVICE.
DISCUSSION
MOSTLY CLEAR SKIES ARE EXPECTED THIS AFTERNOON WITH HIGH
TEMPERATURES IN THE MID TO UPPER 80S, SLIGHTLY ABOVE AVERAGE FOR
LATE AUGUST. MINIMUM RELATIVE HUMIDITY VALUES ARE EXPECTED TO DIP
INTO THE 45-50% RANGE THIS AFTERNOON. SOUTHERLY WINDS WILL
INCREASE THROUGH THE DAY. FROM IGNITION TIME THROUGH THE EARLY
AFTERNOON, WIND GUSTS WILL RESIDE IN THE 15-20 MPH RANGE. WINDS
WILL INCREASE QUICKLY AFTER 6 PM, WITH GUSTS IN THE 20-30 MPH
RANGE THROUGH THE LATE EVENING AND INTO MUCH OF SATURDAY.
SCATTERED SHOWERS AND THUNDERSTORMS WILL BE POSSIBLE SATURDAY
MORNING (6-10 AM) WITH LOCALIZED WIND GUSTS UP TO 45 MPH POSSIBLE.
STRONGEST POSSIBLE 30 FT WIND SPEEDS ON DAY OF BURN: 25 MPH
LOWEST POSSIBLE RELATIVE HUMIDITY ON DAY OF BURN: 45 PERCENT
REST OF TODAY
SKY/WEATHER.........SUNNY (10-20 PERCENT) THEN BECOMING MOSTLY
SUNNY (40-50 PERCENT).
MAX TEMPERATURE.....AROUND 85.
MIN HUMIDITY........48 PERCENT.
EYE LEVEL WINDS.....SOUTH WINDS 5 TO 7 MPH.
WIND (30 FT)........SOUTH WINDS 9 TO 11 MPH.
WIND (20 FT)........SOUTH WINDS 8 TO 10 MPH.
MIXING HEIGHT.......3700 FT AGL.
TRANSPORT WINDS.....SOUTH 12 TO 14 MPH.
SMOKE DISPERSAL.....FAIR (26400 KNOT-FT) EARLY IN THE MORNING
INCREASING TO GOOD (44700 KNOT-FT) IN THE
AFTERNOON.
GFDI................0.
TIME (CDT) 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........17 51 41 49 36 35
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
TEMP............80 81 83 83 83 85
RH..............56 54 51 51 51 48
20 FT WIND DIR..S S S S S S
20 FT WIND SPD..7 8 8 8 9 9
20 FT WIND GUST.11 12 13 13 14 14
EYE LVL WND DIR.S S S S S S
EYE LVL WND SPD.5 6 6 6 7 7
EYE LVL WND GST.8 9 10 10 10 10
30 FT WND DIR...S S S S S S
30 FT WND SPD...9 10 10 10 11 11
30 FT WND GST...14 15 16 16 17 17
MIX HGT (KFT)...3.1 3.4 3.1 3.7 3.7 3.4
TRANSP WIND DIR.S S S S S S
TRANSP WIND SPD.13 12 12 13 14 14
GFDI............0 0 0 0 0 0
SDSPL KT-FT/100026 34 40 45 44 35
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY (25-35 PERCENT) THEN BECOMING
MOSTLY CLOUDY (65-75 PERCENT).
MIN TEMPERATURE.....AROUND 70.
MAX HUMIDITY........66 PERCENT.
EYE LEVEL WINDS.....SOUTH WINDS 6 TO 9 MPH. GUSTS UP TO 23 MPH IN
THE LATE EVENING AND OVERNIGHT.
WIND (30 FT)........SOUTH WINDS 10 TO 15 MPH. GUSTS UP TO 23 MPH IN
THE LATE EVENING AND OVERNIGHT.
WIND (20 FT)........SOUTHEAST WINDS 9 TO 13 MPH. GUSTS UP TO 23 MPH
IN THE LATE EVENING AND OVERNIGHT.
MIXING HEIGHT.......400 FT AGL.
TRANSPORT WINDS.....SOUTH 12 TO 18 MPH.
SMOKE DISPERSAL.....FAIR (21400 KNOT-FT) EARLY IN THE EVENING
DECREASING TO POOR (4800 KNOT-FT) LATE IN THE
NIGHT.
GFDI................0.
TIME (CDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........20 23 25 29 27 28 41 51 53 62 85 61
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
TEMP............83 82 79 76 75 74 73 73 72 72 72 71
RH..............51 51 56 60 60 62 64 62 61 61 61 64
20 FT WIND DIR..S S SE SE SE SE SE S S S S S
20 FT WIND SPD..9 8 9 10 10 11 11 11 11 11 11 12
20 FT WIND GUST.14 13 14 16 16 17 18 18 18 18 18 18
EYE LVL WND DIR.S S SE SE SE SE SE S S S S S
EYE LVL WND SPD.7 6 7 8 8 8 8 8 8 8 8 9
EYE LVL WND GST.10 10 10 12 12 13 13 13 13 13 14 14
30 FT WND DIR...S S SE SE SE SE SE S S S S S
30 FT WND SPD...11 10 11 13 13 14 14 14 14 14 14 15
30 FT WND GST...17 16 17 20 20 21 22 22 22 22 23 23
MIX HGT (KFT)...3.1 1.0 0.4 0.5 0.4 0.4 0.5 0.5 0.5 0.5 0.5 0.5
TRANSP WIND DIR.S S S SE SE S S S S S S S
TRANSP WIND SPD.14 12 12 13 14 14 15 16 16 17 18 15
GFDI............0 0 0 0 0 0 0 0 0 0 0 0
SDSPL KT-FT/100021 10 6 5 5 5 6 7 7 8 8 6
SATURDAY
SKY/WEATHER.........MOSTLY SUNNY (40-50 PERCENT).
MAX TEMPERATURE.....AROUND 92.
MIN HUMIDITY........42 PERCENT.
EYE LEVEL WINDS.....SOUTH WINDS 9 TO 12 MPH.
WIND (30 FT)........SOUTH WINDS 15 TO 20 MPH.
WIND (20 FT)........SOUTH WINDS 13 TO 17 MPH.
MIXING HEIGHT.......4000 FT AGL.
TRANSPORT WINDS.....SOUTH 15 TO 23 MPH INCREASING TO 18 TO 26 MPH
LATE IN THE MORNING.
SMOKE DISPERSAL.....POOR (5200 KNOT-FT) EARLY IN THE MORNING
INCREASING TO EXCELLENT (80700 KNOT-FT) IN THE
AFTERNOON.
GFDI................0.
TIME (CDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........59 60 66 57 41 31 25 35 25 33 26 22
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
TEMP............71 70 71 73 75 79 82 86 88 90 92 92
RH..............61 63 66 64 62 58 55 48 48 45 43 43
20 FT WIND DIR..S S S S S S S S S S S S
20 FT WIND SPD..12 12 13 13 13 15 15 15 15 15 16 16
20 FT WIND GUST.18 18 18 19 19 20 21 21 21 21 21 21
EYE LVL WND DIR.S S S S S S S S S S S S
EYE LVL WND SPD.9 9 10 10 10 11 11 11 11 11 12 12
EYE LVL WND GST.14 14 14 14 14 15 16 16 16 16 16 16
30 FT WND DIR...S S S S S S S S S S S S
30 FT WND SPD...15 15 16 16 16 19 19 19 19 19 20 20
30 FT WND GST...23 23 23 24 24 25 26 26 26 26 26 26
MIX HGT (KFT)...0.5 0.5 1.0 1.4 1.7 2.1 2.8 3.0 3.5 4.0 4.0 4.0
TRANSP WIND DIR.S S S S S S S S S S S S
TRANSP WIND SPD.15 16 17 21 23 25 26 26 18 20 22 20
GFDI............0 0 0 0 0 0 0 0 0 0 0 0
SDSPL KT-FT/10005 7 14 23 35 47 60 70 78 81 76 60
FORECAST DAYS 3 THROUGH 5
SUNDAY
PARTLY CLOUDY. LOWS IN THE UPPER 70S. HIGHS IN THE MID 90S. SOUTH
WINDS AROUND 13 MPH.
MONDAY
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS. LOWS
IN THE UPPER 70S. HIGHS IN THE MID 90S. SOUTH WINDS AROUND
12 MPH.
TUESDAY
PARTLY CLOUDY. CHANCE OF SHOWERS AND THUNDERSTORMS. LOWS IN THE
MID 70S. HIGHS IN THE LOWER 90S. SOUTH WINDS AROUND 5 MPH.
FORECASTER...WOOD
REQUESTED BY...MATT DOLLISON
TYPE OF REQUEST...PRESCRIBED
.TAG 2620792.0/OAX
.DELDT 08/28/26
.FORMATTERVERSION 2.0.0
.EMAIL MATT.DOLLISON@DNR.IOWA.GOV
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