261
FNUS73 KDMX 011333
FWSDMX

Spot Forecast for USACE Burn Pile...US Army Corp - Rathbun Lake Project
National Weather Service Des Moines IA
733 AM CST Mon Dec 1 2025

Forecast is based on ignition time of 0800 CST on December 01.
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...

Light snow is expected to develop this morning and persist much of
the day with some accumulations expected. The wind will be mainly
light today with a variable wind direction to start early this
morning then becoming more southerly then southwesterly later
today.

.REST OF TODAY...

Sky/weather.........Cloudy (90-100 percent). Snow.
Max temperature.....Around 24.
Min humidity........88 percent.
Wind (20 ft)........South winds around 5 mph early in the morning
                    becoming light.
Mixing height.......1900 ft AGL.
Transport winds.....South 7 to 9 mph shifting to the southwest
                    around 7 mph late in the afternoon.
Smoke dispersal.....Poor (4400 knot-ft).
GFDI................0.

TIME (CST)      8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........96  96  96  96  96  97  96  96  96  96
Weather cov.....SCH CHC CHC DEF DEF DEF DEF DEF LKY CHC
Weather type....SN  SN  SN  SN  SN  SN  SN  SN  SN  SN
Tstm cov........
Temp............20  20  21  22  23  23  24  24  24  24
RH..............96  96  96  92  92  96  92  92  92  88
20 FT wind dir..S   S   S   S   S   S   S   S   SW  SW
20 FT wind spd..5   5   3   3   3   3   3   2   2   2
20 FT wind gust.    6   6   6   6   6   6   5   5   5
Mix hgt (kft)...0.7 1.1 1.3 1.4 1.8 1.8 1.9 1.8 1.5 1.1
Transp wind dir.SE  S   S   S   S   SW  SW  SW  W   W
Transp wind spd.7   9   9   9   8   8   7   7   7   7
GFDI............0   0   0   0   0   0   0   0   0   0
Smoke Dispersal.4   9   11  11  12  12  11  11  9   7
Smoke Cat.......PR  PR  PR  PR  PR  PR  PR  PR  PR  PR

.TONIGHT...

Sky/weather.........Mostly cloudy (75-85 percent). Slight chance of
                    snow early in the evening, then chance of
                    flurries early in the evening.
Min temperature.....Around 13.
Max humidity........96 percent.
Wind (20 ft)........Light winds becoming west 5 to 6 mph in the
                    late evening and overnight.
Mixing height.......400 ft AGL.
Transport winds.....West 6 to 10 mph.
Smoke dispersal.....Poor (3300 knot-ft).
GFDI................1.

TIME (CST)      6 PM   8 PM   10 PM  MIDNGT 2 AM   4 AM
Sky (%).........94     87     75     62     65     66
Weather cov.....S CHC  CHANCE
Weather type....SNOW   SNSHWR NONE   NONE   NONE   NONE
Tstm cov........
Temp............23     21     19     17     16     16
RH..............92     88     92     92     92     92
20 ft wind......SW 2   W 3    W 5    W 6    W 6    W 6
20 ft wind gust.3      5      6      8      8      8
Mix hgt (ft)....900    600    500    400    500    600
Transport wind..W 6    W 8    W 8    W 10   W 10   W 9
GFDI............0      0      0      1      1      1
Smoke Dispersal.5      4      3      4      5      5
Smoke Cat.......POOR   POOR   POOR   POOR   POOR   POOR

$$
Forecaster...Donavon
Requested by...Scott Frieden
Type of request...PRESCRIBED
.TAG 2526725.0/DMX
.DELDT 12/01/25
.FormatterVersion 2.0.0
.EMAIL scott.a.frieden@usace.army.mil