163
FNUS73 KDMX 151209
FWSDMX

Spot Forecast for Prairie Gold...Palo Alto County Conservation
National Weather Service Des Moines IA
709 AM CDT Fri May 15 2026

Forecast is based on ignition time of 0800 CDT on May 15.
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...

Warm, dry, and sunny condtions are expected before 5 PM today.
Winds are currently out of the southeast between 5 and 10 mph.
Through the rest of the morning, winds will take on a more
southerly direction and increase to near 10 mph. After 12 PM
today, winds will increase closer to 15 mph. Gusts should stay
light through the earlier part of the day, before increasing to
near 20 mph this afternoon. Relative humidity is expected to drop
to near 25% this afternoon with high temperatures around 90.
Thunderstorms are expected to form in northern and northwestern
Iowa around 5 PM today. Around any thunderstorms, gusty and
erratic wind gusts are expected.

.REST OF TODAY...

Sky/weather.........Sunny (20-30 percent). Slight chance of showers
                    and thunderstorms late in the afternoon.
Max temperature.....Around 90.
Min humidity........29 percent.
Wind (20 ft)........South winds 6 to 13 mph. Gusty and erratic
                    winds expected near thunderstorms late in the
                    afternoon.
Mixing height.......9700 ft AGL.
Transport winds.....West 7 to 16 mph.
Smoke dispersal.....Poor (4600 knot-ft) early in the morning
                    increasing to good (76200 knot-ft) in the
                    afternoon increasing to very good (104700
                    knot-ft) late in the afternoon.
GFDI................0.

TIME (CDT)      8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........10  6   4   1   1   1   5   9   29  44
Weather cov.....                                    SCH
Weather type....                                    RW
Tstm cov........                                    SCH
Temp............61  68  73  77  82  84  86  88  88  88
RH..............67  59  53  45  37  33  31  30  29  29
20 FT wind dir..S   S   S   S   S   S   S   S   S   S
20 FT wind spd..6   7   7   6   8   9   10  12  13  13
20 FT wind gust.10  9   9   10  12  13  14  17  20  17
Mix hgt (kft)...0.6 0.8 1.3 2.3 4.1 6.0 7.6 8.7 9.7 9.7
Transp wind dir.SW  W   W   W   W   W   W   W   W   W
Transp wind spd.9   7   7   9   8   9   12  14  14  16
GFDI............0   0   0   0   0   0   0   0   0   0
Smoke Dispersal.5   5   8   19  29  48  76  105 117 136
Smoke Cat.......PR  PR  PR  PR  PR  FR  GD  VGD VGD VGD

$$
Forecaster...Hagenhoff/Rotter
Requested by...Blake Jesse
Type of request...PRESCRIBED
.TAG 2613713.0/DMX
.DELDT 05/15/26
.FormatterVersion 2.0.0
.EMAIL bjesse@paloaltocounty.iowa.gov