Spot Forecast
Issued by NWS Des Moines, IA
Issued by NWS Des Moines, IA
317
FNUS73 KDMX 081305
FWSDMX
Spot Forecast for Beaver Creek Prescribed Fire...Polk County Conservation
National Weather Service Des Moines IA
805 AM CDT Wed Oct 8 2025
Forecast is based on ignition time of 0900 CDT on October 08.
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 east to southeast wind is expected today. Mixing will be
limited, especially this morning while slow mixing through a steep
low level inversion. Better mixing will occur by this afternoon
leading to better smoke dispersion.
.REST OF TODAY...
Sky/weather.........Sunny (0-5 percent).
Max temperature.....Around 69.
Min humidity........42 percent.
Wind (20 ft)........Light winds becoming southeast 5 to 6 mph in
the late morning and afternoon.
Mixing height.......5900 ft AGL.
Transport winds.....Southeast 6 to 9 mph.
Smoke dispersal.....Poor (4200 knot-ft) early in the morning
increasing to good (36300 knot-ft) in the
afternoon.
GFDI................0.
TIME (CDT) 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........0 0 0 2 2 1 1 2 1
Weather cov.....
Weather type....
Tstm cov........
Temp............51 54 58 62 65 66 67 69 67
RH..............74 66 60 54 48 47 45 42 45
20 FT wind dir..E E SE SE SE SE SE SE SE
20 FT wind spd..3 5 6 6 6 6 6 6 6
20 FT wind gust.8 8 9 9 10 10 10 10 10
Mix hgt (kft)...0.6 0.8 1.3 1.9 3.1 4.8 5.7 5.9 5.2
Transp wind dir.E SE SE SE SE SE SE SE SE
Transp wind spd.8 8 9 7 7 6 6 7 8
GFDI............0 0 0 0 0 0 0 0 0
Smoke Dispersal.4 6 11 11 18 24 29 35 36
Smoke Cat.......PR PR PR PR PR PR PR PR PR
.TONIGHT...
Sky/weather.........Clear (0-10 percent).
Min temperature.....Around 44.
Max humidity........69 percent.
Wind (20 ft)........Southeast winds around 6 mph.
Mixing height.......500 ft AGL.
Transport winds.....Southeast 8 to 14 mph.
Smoke dispersal.....Poor (4000 knot-ft).
GFDI................0.
TIME (CDT) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM
Sky (%).........1 1 2 2 6 6
Weather cov.....
Weather type....NONE NONE NONE NONE NONE NONE
Tstm cov........
Temp............66 58 53 50 48 46
RH..............48 60 69 68 65 68
20 ft wind......SE 6 E 6 E 6 SE 6 SE 6 SE 6
20 ft wind gust.10 9 10 10 10 12
Mix hgt (ft)....800 500 500 500 500 500
Transport wind..SE 8 SE 10 E 14 SE 14 SE 13 SE 12
GFDI............0 0 0 0 0 0
Smoke Dispersal.6 5 6 6 6 5
Smoke Cat.......POOR POOR POOR POOR POOR POOR
.THURSDAY...
Sky/weather.........Sunny (15-25 percent).
Max temperature.....Around 71.
Min humidity........44 percent.
Wind (20 ft)........Southeast winds 6 to 12 mph.
Mixing height.......3500 ft AGL.
Transport winds.....South 13 to 21 mph.
Smoke dispersal.....Poor (5500 knot-ft) early in the morning
increasing to excellent (62800 knot-ft) in the
afternoon.
GFDI................0.
TIME (CDT) 6 AM 9 AM NOON 3 PM
Sky (%).........13 11 23 21
Weather cov.....
Weather type....NONE NONE NONE NONE
Tstm cov........
Temp............45 49 63 70
RH..............68 74 54 46
20 FT wind......SE 6G12 SE 8G14 S 12G18 S 12G20
Mix hgt (ft)....500 700 2000 3200
Transport wind..SE 13 S 15 S 18 S 21
GFDI............0 0 0 0
Smoke Dispersal.6 9 32 59
Smoke Cat.......POOR POOR POOR FAIR
$$
Forecaster...Donavon
Requested by...Douglas Todey
Type of request...PRESCRIBED
.TAG 2523158.0/DMX
.DELDT 10/08/25
.FormatterVersion 2.0.0
.EMAIL douglas.todey@polkcountyiowa.gov