664
FNUS73 KDMX 281628
FWSDMX

Spot Forecast for Brush Pile Burn...U.S. Army Corps of Engineers
National Weather Service Des Moines IA
1028 AM CST Wed Jan 28 2026

Forecast is based on ignition time of 1100 CST on January 28.
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 generally from the northwest today at around 10 MPH
with occasional higher gusts. Relative humidity will decrease to
around 40 percent in mid-afternoon.

.REST OF TODAY...

Sky/weather.........Partly sunny (50-60 percent).
Temperature.........23 at ignition...Max 27.
RH..................47 percent at ignition...Min 40 percent.
Wind (20 ft)........Winds northwest at 7 mph at
                    ignition...otherwise Northwest winds 6 to 8
                    mph.
Mixing height.......1700 ft AGL at ignition...otherwise 2500 ft
                    AGL.
Transport winds.....Northwest 10 to 18 mph.
Smoke dispersal.....Fair /24300 knot-ft/ at ignition. Max...good
                    /38200 knot-ft/.
GFDI................2.

TIME (CST)      11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........63  65  64  62  61  53  45
Weather cov.....
Weather type....
Tstm cov........
Temp............23  25  26  26  28  27  25
RH..............47  44  42  42  40  42  45
20 FT wind dir..NW  NW  NW  NW  NW  NW  NW
20 FT wind spd..7   8   8   8   8   7   6
20 FT wind gust.12  13  13  13  15  14  12
Mix hgt (kft)...1.7 2.2 2.3 2.4 2.5 2.2 0.5
Transp wind dir.W   W   W   W   NW  NW  NW
Transp wind spd.16  18  15  17  17  15  10
GFDI............1   2   2   2   2   2   1
Smoke Dispersal.24  35  30  37  38  28  5
Smoke Cat.......PR  PR  PR  PR  PR  PR  PR

.TONIGHT...

Sky/weather.........Partly cloudy (30-40 percent) then becoming
                    mostly cloudy (65-75 percent).
Temperature.........Min 7.
RH..................Max 73 percent.
Wind (20 ft)........North winds 5 to 6 mph shifting to the
                    northeast 6 to 7 mph overnight.
Mixing height.......400 ft AGL.
Transport winds.....North 8 to 12 mph.
Smoke dispersal.....Poor (2800 knot-ft).
GFDI................1.

TIME (CST)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........26  35  40  54  56  54  59  61  68  75  81  83
Weather cov.....
Weather type....
Tstm cov........
Temp............21  19  18  16  15  15  14  14  13  12  10  9
RH..............52  56  56  58  61  61  67  67  67  66  73  72
20 FT wind dir..N   N   N   N   N   N   NE  NE  NE  NE  NE  NE
20 FT wind spd..5   5   6   6   6   5   6   6   7   7   7   7
20 FT wind gust.8   9   9   10  9   10  10  10  10  10  10  10
Mix hgt (kft)...0.4 0.4 0.4 0.4 0.5 0.5 0.5 0.7 1.0 1.1 1.1 1.1
Transp wind dir.N   N   N   N   N   N   N   N   NE  NE  N   NE
Transp wind spd.8   8   9   9   10  9   9   12  10  10  10  10
GFDI............1   1   1   1   1   1   1   1   1   1   1   1
Smoke Dispersal.3   3   3   4   4   4   4   7   9   10  10  10
Smoke Cat.......PR  PR  PR  PR  PR  PR  PR  PR  PR  PR  PR  PR

.THURSDAY...

Sky/weather.........Mostly cloudy (75-85 percent).
Temperature.........Max 19.
RH..................Min 54 percent.
Wind (20 ft)........Northeast winds 5 to 7 mph.
Mixing height.......1900 ft AGL.
Transport winds.....Northeast 6 to 10 mph.
Smoke dispersal.....Poor (5500 knot-ft).
GFDI................1.

TIME (CST)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........87  87  89  89  84  85  85  84  84  83  78  72
Weather cov.....
Weather type....
Tstm cov........
Temp............8   8   7   8   10  12  14  16  18  19  19  19
RH..............79  76  79  83  76  70  64  61  56  54  54  54
20 FT wind dir..NE  NE  NE  NE  NE  NE  NE  NE  N   N   N   N
20 FT wind spd..7   6   6   6   6   5   5   5   6   6   5   5
20 FT wind gust.10  9   9   9   9   10  10  10  10  10  9   9
Mix hgt (kft)...1.2 1.1 1.1 1.1 1.3 1.4 1.6 1.7 1.8 1.9 1.4 0.9
Transp wind dir.NE  NE  NE  NE  NE  NE  N   N   N   N   N   N
Transp wind spd.10  8   8   7   7   7   7   7   6   6   6   7
GFDI............1   1   1   1   1   1   1   1   1   1   1   1
Smoke Dispersal.11  8   8   7   8   9   10  10  9   10  8   6
Smoke Cat.......PR  PR  PR  PR  PR  PR  PR  PR  PR  PR  PR  PR

$$
Forecaster...Lee
Requested by...Scott Frieden
Type of request...PRESCRIBED
.TAG 2601240.0/DMX
.DELDT 01/28/26
.FormatterVersion 2.0.0
.EMAIL scott.a.frieden@usace.army.mil