Spot Forecast
Issued by NWS Des Moines, IA
Issued by NWS Des Moines, IA
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FNUS73 KDMX 171341
FWSDMX
Spot Forecast for Middle Raccoon Shearer...Iowa DNR
National Weather Service Des Moines IA
841 AM CDT Thu Apr 17 2025
Forecast is based on ignition time of 0900 CDT on April 17.
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...
Mostly sunny start to the day, but clouds will be on the increase
as the day progresses. Daytime hours will be dry. Winds will be
from the south at generally 15 to 25 mph. Thunderstorms will be
likely at the burn site - most likely timing is between 8 and 10
mph. Winds will be erratic with thunderstorms. Once storms move
out after 10 PM, winds will turn from the northwest late tonight
and for Friday.
.REST OF TODAY...
Sky/weather.........Mostly sunny this morning becoming
mostly cloudy (65-75 percent) by afternoon.
Max temperature.....Around 77.
Min humidity........54 percent.
Wind (20 ft)........South winds 17 to 20 mph.
Mixing height.......3300 ft AGL.
Transport winds.....South 21 to 26 mph.
Smoke dispersal.....Fair (25400 knot-ft) early in the morning
increasing to excellent (68900 knot-ft) in the
afternoon.
GFDI................6.
TIME (CDT) 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........55 65 66 80 85 83 84 79 77
Weather cov.....
Weather type....
Tstm cov........
Temp............63 66 68 70 70 70 71 73 75
RH..............64 68 63 61 61 63 61 57 54
20 FT wind dir..S S S S S S S S S
20 FT wind spd..17 18 18 20 20 20 18 18 17
20 FT wind gust.28 28 28 28 28 28 26 26 26
Mix hgt (kft)...1.3 2.1 2.8 2.8 2.9 2.9 3.3 2.4 2.2
Transp wind dir.S S S S S S S S S
Transp wind spd.22 25 26 25 26 24 24 21 21
GFDI............5 5 6 7 7 6 6 7 7
Smoke Dispersal.25 47 64 61 66 62 69 43 39
Smoke Cat.......PR FR GD GD GD GD GD FR PR
.TONIGHT...
Sky/weather.........Mostly cloudy (60-70 percent) then becoming
partly cloudy (35-45 percent) then becoming
mostly cloudy (65-75 percent). Rain showers
likely in the evening. Chance of thunderstorms
through the night. Chance of rain showers
overnight.
Min temperature.....Around 50.
Max humidity........90 percent.
Wind (20 ft)........Southeast winds 12 to 16 mph shifting to the
northeast around 10 mph late in the evening,
then shifting to the east 9 to 10 mph late in
the evening shifting to the north overnight
becoming around 10 mph. Gusty and erratic winds
expected near thunderstorms early in the
evening. Gusty and erratic winds expected near
thunderstorms late in the evening, then gusty
and erratic winds expected near thunderstorms
overnight. Gusty and erratic winds expected
near thunderstorms overnight.
Mixing height.......400 ft AGL.
Transport winds.....South 13 to 17 mph shifting to the east 10 to
12 mph late in the evening, then shifting to
the southeast 9 to 10 mph overnight shifting to
the north 9 to 15 mph after 3 am.
Smoke dispersal.....Fair (23600 knot-ft) early in the evening
decreasing to poor (3200 knot-ft) late in the
night.
GFDI................4.
TIME (CDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........67 74 70 67 79 55 42 36 45 44 44 69
Weather cov..... SCH CHC LKY LKY CHC CHC SCH SCH SCH SCH
Weather type.... RW RW RW RW RW RW RW RW RW RW
Tstm cov........ SCH CHC CHC CHC CHC SCH SCH SCH SCH SCH
Temp............74 73 69 66 65 63 61 60 60 59 57 56
RH..............57 59 68 75 78 84 87 90 90 87 90 90
20 FT wind dir..S S SE SE NE E E E NE N N N
20 FT wind spd..16 14 13 12 10 10 9 9 9 10 10 10
20 FT wind gust.24 21 20 18 16 15 14 14 14 15 15 17
Mix hgt (kft)...1.6 1.2 0.6 0.6 0.5 0.5 0.5 0.4 0.4 0.4 0.4 0.6
Transp wind dir.S S S SE NE E E SE SE N N N
Transp wind spd.17 17 13 13 10 10 12 10 9 9 12 15
GFDI............6 4 3 2 2 2 1 1 1 1 1 1
Smoke Dispersal.24 19 7 7 5 4 5 4 3 3 4 8
Smoke Cat.......PR PR PR PR PR PR PR PR PR PR PR PR
.FRIDAY...
Sky/weather.........Mostly cloudy (80-90 percent). Slight chance of
thunderstorms early in the morning. Slight
chance of rain showers in the morning.
Max temperature.....Around 58.
Min humidity........61 percent.
Wind (20 ft)........Northwest winds 12 to 16 mph. Gusty and erratic
winds expected near thunderstorms early in the
morning.
Mixing height.......2800 ft AGL.
Transport winds.....North 15 to 21 mph.
Smoke dispersal.....Fair (13300 knot-ft) early in the morning
increasing to good (41200 knot-ft) in the
afternoon.
GFDI................3.
TIME (CDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........79 86 86 86 86 82 81 83 84 83 83 83
Weather cov.....SCH SCH SCH SCH SCH SCH SCH
Weather type....RW RW RW RW RW RW RW
Tstm cov........SCH
Temp............54 52 51 51 52 52 53 54 55 55 55 55
RH..............90 86 89 86 80 77 74 69 66 66 64 61
20 FT wind dir..N N N N N N NW NW NW NW NW NW
20 FT wind spd..12 13 14 15 15 16 16 16 15 15 14 14
20 FT wind gust.18 20 22 22 23 23 23 22 22 21 21 21
Mix hgt (kft)...1.0 1.1 1.2 1.7 1.7 2.0 2.3 2.5 2.7 2.8 2.8 2.5
Transp wind dir.N N N N N N N N NW N N N
Transp wind spd.15 20 17 21 20 21 21 18 17 16 16 16
GFDI............2 2 2 2 3 3 3 3 3 3 3 3
Smoke Dispersal.13 19 18 31 29 37 41 40 40 40 39 34
Smoke Cat.......PR PR PR PR PR PR FR PR FR FR PR PR
$$
Forecaster...Hahn
Requested by...Tanner Venteicher
Type of request...PRESCRIBED
.TAG 2510876.0/DMX
.DELDT 04/17/25
.FormatterVersion 2.0.0
.EMAIL tanner.venteicher@dnr.iowa.gov