275
FNUS73 KDMX 131237
FWSDMX

Spot Forecast for Huston Prairie...Palo Alto County Conservation
National Weather Service Des Moines IA
737 AM CDT Wed May 13 2026

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

A morning inversion will start to dissipate between 8 and 9 am
this morning. Mixing heights will also increase through the day
with excellent smoke dispersion this afternoon. RH values will
fall to the 20% by late afternoon under a mostly sunny sky. Winds
will be out of the north northwest between 10-14 mph with gusts
reaching up to 20 mph later this afternoon.

.REST OF TODAY...

Sky/weather.........Sunny (0-10 percent).
Max temperature.....Around 77.
Min humidity........22 percent.
Wind (20 ft)........North winds 8 to 12 mph.
Mixing height.......9700 ft AGL.
Transport winds.....North 14 to 22 mph.
Smoke dispersal.....Poor (9500 knot-ft) early in the morning
                    increasing to excellent (164600 knot-ft)
                    in the afternoon.
GFDI................0.

TIME (CDT)      8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........2   1   1   1   1   2   2   2   4   4
Weather cov.....
Weather type....
Tstm cov........
Temp............49  56  62  65  68  71  74  74  75  76
RH..............63  49  39  35  31  27  24  24  23  22
20 FT wind dir..NW  N   N   N   N   N   N   NW  NW  N
20 FT wind spd..9   10  10  12  10  12  12  10  10  8
20 FT wind gust.12  13  16  16  16  18  17  16  18  15
Mix hgt (kft)...0.8 1.9 3.0 5.2 7.0 8.4 9.1 9.7 9.7 9.6
Transp wind dir.N   N   N   N   N   N   N   N   N   N
Transp wind spd.14  17  20  22  21  22  21  20  17  14
GFDI............0   0   0   0   0   0   0   0   0   0
Smoke Dispersal.10  29  51  98  126 161 165 165 145 115
Smoke Cat.......PR  PR  FR  GD  VGD EXL EXL EXL VGD VGD

$$
Forecaster...Ansorge/Ryan
Requested by...Blake Jesse
Type of request...PRESCRIBED
.TAG 2613529.0/DMX
.DELDT 05/13/26
.FormatterVersion 2.0.0
.EMAIL bjesse@paloaltocounty.iowa.gov