465
FNUS73 KDMX 131545
FWSDMX

Spot Forecast for YB - Alitz & prairie...Polk County Conservation
National Weather Service Des Moines IA
1045 AM CDT Mon Oct 13 2025

Forecast is based on ignition time of 1100 CDT on October 13.
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...

Breezy north wind will occur into this afternoon. A few gusts
over 20 mph will occur. The relative humidity values will fall
into the 40s this afternoon.

.REST OF TODAY...

Sky/weather.........Mostly sunny (25-35 percent).
Max temperature.....Around 71.
Min humidity........42 percent.
Wind (20 ft)........North winds 12 to 14 mph.
Mixing height.......3000 ft AGL.
Transport winds.....North 16 to 20 mph.
Smoke dispersal.....Good (33900 knot-ft).
GFDI................0.

TIME (CDT)      11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........33  30  28  31  33  30  32
Weather cov.....
Weather type....
Tstm cov........
Temp............61  64  66  68  70  71  69
RH..............58  52  49  46  44  42  45
20 FT wind dir..N   N   N   N   N   NE  NE
20 FT wind spd..14  14  14  13  13  13  12
20 FT wind gust.18  18  18  17  17  17  16
Mix hgt (kft)...2.0 2.3 2.7 2.8 2.9 3.0 2.6
Transp wind dir.N   N   N   N   N   N   NE
Transp wind spd.20  17  16  17  16  17  16
GFDI............0   0   0   0   0   0   0
Smoke Dispersal.34  34  37  42  41  45  37
Smoke Cat.......PR  PR  PR  FR  FR  FR  PR

.TONIGHT...

Sky/weather.........Partly cloudy (40-50 percent) then becoming
                    mostly cloudy (60-70 percent). Slight chance of
                    rain showers early in the morning.
Min temperature.....Around 54.
Max humidity........61 percent.
Wind (20 ft)........Northeast winds 8 to 10 mph.
Mixing height.......400 ft AGL.
Transport winds.....Northeast 13 to 17 mph.
Smoke dispersal.....Poor (4900 knot-ft).
GFDI................0.

TIME (CDT)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........36  39  47  50  53  65  66  72  75  78  80  81
Weather cov.....                                            SCH
Weather type....                                            RW
Tstm cov........
Temp............67  65  62  60  60  59  58  58  57  57  56  55
RH..............47  46  52  53  55  53  55  55  57  57  59  61
20 FT wind dir..N   N   N   N   NE  NE  NE  NE  NE  NE  NE  NE
20 FT wind spd..10  9   8   9   9   9   9   8   8   8   8   8
20 FT wind gust.14  13  13  14  14  15  14  13  13  13  13  13
Mix hgt (kft)...0.7 0.4 0.4 0.4 0.4 0.4 0.5 0.7 0.6 0.6 0.8 0.8
Transp wind dir.N   N   N   N   NE  NE  NE  NE  NE  NE  E   E
Transp wind spd.14  13  14  15  15  15  16  17  16  15  15  16
GFDI............0   0   0   0   0   0   0   0   0   0   0   0
Smoke Dispersal.8   5   5   6   6   6   7   10  8   8   11  11
Smoke Cat.......PR  PR  PR  PR  PR  PR  PR  PR  PR  PR  PR  PR

$$
Forecaster...Donavon
Requested by...Lael Neal
Type of request...PRESCRIBED
.TAG 2523506.0/DMX
.DELDT 10/13/25
.FormatterVersion 2.0.0
.EMAIL lael.neal@polkcountyiowa.gov