Suppression Forecast
Issued by NWS Des Moines, IA
Issued by NWS Des Moines, IA
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FNUS73 KDMX 221601
FWSDMX
Spot Forecast for TELC...Story County Conservation
National Weather Service Des Moines IA
Issued by National Weather Service Twin Cities/Chanhassen MN
1101 AM CDT Tue Apr 22 2025
Forecast is based on ignition time of 1800 CDT on April 22.
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...
Dry conditions are anticipated through the evening hours. Partly
cloudy conditions with westerly winds at 6 to 8 mph will shift to
the east shortly after ignition time. Winds decrease to 3 to 5 mph
and become variable primarily out of the southeast late evening.
Relative humidities will start in the 30 to 35 percent range with
temperatures in the low 70s. RH values slowly recover through the
evening hours as temperatures fall into the 60s and 50s. Mixing
heights start around 3,000 ft and decrease after ignition.
.TONIGHT...
Sky/weather.........Partly cloudy (25-35 percent). Slight chance of
showers and thunderstorms overnight. Chance of
showers and thunderstorms after 3 am.
Temperature.........71 at ignition...Min 50.
RH..................39 percent at ignition...Max 86 percent.
Wind (20 ft)........Winds west at 6 mph at ignition...otherwise
West winds around 6 mph shifting to the east
around 5 mph early in the evening, then
becoming light in the late evening and
overnight becoming southeast around 5 mph after
3 am. Gusty and erratic winds expected near
thunderstorms overnight.
Mixing height.......2800 ft AGL at ignition...otherwise 500 ft AGL.
Transport winds.....Northeast 5 to 8 mph shifting to the southeast
8 to 12 mph in the late evening and overnight.
Smoke dispersal.....Fair /13800 knot-ft/ at ignition. Min...poor
/2600 knot-ft/.
GFDI................1.
TIME (CDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........28 25 32 24 19 17 37 41 39 37 43 41
Weather cov..... SCH SCH SCH CHC CHC
Weather type.... RW RW RW RW RW
Tstm cov........ SCH SCH SCH CHC CHC
Temp............71 72 66 64 60 59 57 55 54 54 53 52
RH..............39 38 47 52 60 62 67 72 77 80 86 86
20 FT wind dir..W SE E E NE E SE SE SE SE SE SE
20 FT wind spd..6 5 5 3 3 3 3 3 3 5 5 5
20 FT wind gust. 7 6 6 6 5 5 6 6 6 7 7
Mix hgt (kft)...2.8 0.7 0.6 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.6 0.5
Transp wind dir.NE E E E E E E SE SE SE SE SE
Transp wind spd.6 5 6 8 8 8 10 9 10 10 12 9
GFDI............1 1 1 1 0 0 0 0 0 0 0 0
Smoke Dispersal.14 3 3 4 4 3 4 4 4 5 6 4
Smoke Cat.......PR PR PR PR PR PR PR PR PR PR PR PR
.WEDNESDAY...
Sky/weather.........Partly sunny (55-65 percent). Chance of rain
showers in the morning. Chance of thunderstorms
through the day. Rain showers likely in the
afternoon.
Temperature.........Max 75.
RH..................Min 56 percent.
Wind (20 ft)........Southeast winds 5 to 10 mph. Gusty and erratic
winds expected near thunderstorms.
Mixing height.......3500 ft AGL.
Transport winds.....Southeast 8 to 10 mph shifting to the southwest
around 7 mph late in the morning, then shifting
to the east around 8 mph late in the morning
shifting to the south 9 to 10 mph in the
afternoon.
Smoke dispersal.....Poor (3700 knot-ft) early in the morning
increasing to fair (28400 knot-ft) in the
afternoon.
GFDI................1.
TIME (CDT) 6 AM 8 AM 10 AM NOON 2 PM 4 PM
Sky (%).........42 52 70 71 62 62
Weather cov.....CHANCE CHANCE CHANCE CHANCE LIKELY LIKELY
Weather type....RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR
Tstm cov........CHANCE CHANCE CHANCE CHANCE CHANCE CHANCE
Temp............52 54 62 68 71 73
RH..............89 86 75 63 57 56
20 ft wind......SE 5 SE 6 SE 7 SE 8 SE 10 S 10
20 ft wind gust.7 7 10 13 14 14
Mix hgt (ft)....500 500 1300 2300 3000 3500
Transport wind..SE 10 S 8 SW 7 SE 9 S 10 S 10
GFDI............0 0 1 1 2 2
Smoke Dispersal.5 4 8 17 27 28
Smoke Cat.......POOR POOR POOR POOR POOR POOR
.WEDNESDAY NIGHT...
Sky/weather.........Mostly cloudy (75-85 percent). Chance of
thunderstorms in the evening. Rain showers
likely through the night. Slight chance of
thunderstorms overnight.
Temperature.........Min 53.
RH..................Max 88 percent.
Wind (20 ft)........Southeast winds 7 to 9 mph. Gusty and erratic
winds expected near thunderstorms in the
evening. Gusty and erratic winds expected near
thunderstorms overnight.
Mixing height.......500 ft AGL.
Transport winds.....Southeast 10 to 13 mph shifting to the
northeast 10 to 12 mph after 3 am.
Smoke dispersal.....Fair (17800 knot-ft) early in the evening
decreasing to poor (4300 knot-ft) late in the
night.
GFDI................1.
TIME (CDT) 6 PM 9 PM MIDNGT 3 AM
Sky (%).........79 77 78 83
Weather cov.....LIKELY LIKELY LIKELY LIKELY
Weather type....RNSHWR RNSHWR RNSHWR RNSHWR
Tstm cov........CHANCE CHANCE CHANCE S CHC
Temp............70 63 59 56
RH..............62 74 80 86
20 FT wind......SE 9G13 SE 7G9 SE 7G9 E 7G10
Mix hgt (ft)....1900 800 600 500
Transport wind..SE 10 S 13 SE 12 E 10
GFDI............1 1 1 1
Smoke Dispersal.18 9 6 4
Smoke Cat.......POOR POOR POOR POOR
.THURSDAY...
Sky/weather.........Mostly cloudy (75-85 percent). Rain showers
likely and slight chance of thunderstorms in
the morning, then rain showers and chance of
thunderstorms in the afternoon.
Temperature.........Max 71.
RH..................Min 62 percent.
Wind (20 ft)........East winds 8 to 14 mph. Gusty and erratic winds
expected near thunderstorms.
Mixing height.......2500 ft AGL.
Transport winds.....East 12 to 17 mph.
Smoke dispersal.....Poor (6200 knot-ft) early in the morning
increasing to good (35300 knot-ft) in the
afternoon.
GFDI................2.
TIME (CDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........86 86 84 82 80 79 78 77 79 80 82 85
Weather cov.....LKY LKY LKY LKY LKY LKY LKY DEF DEF DEF DEF DEF
Weather type....RW RW RW RW RW RW RW RW RW RW RW RW
Tstm cov........SCH SCH SCH SCH SCH SCH SCH CHC CHC CHC CHC CHC
Temp............55 55 57 59 61 63 65 67 68 69 69 69
RH..............87 88 84 81 78 75 73 68 66 64 62 64
20 FT wind dir..E E E E E E E E E E E E
20 FT wind spd..8 8 9 9 10 12 13 14 14 14 13 12
20 FT wind gust.12 12 13 14 15 16 17 18 20 20 20 18
Mix hgt (kft)...0.6 0.7 0.8 1.0 1.2 1.6 2.1 2.5 2.4 2.3 2.1 1.6
Transp wind dir.E E E E E E E E E E E E
Transp wind spd.12 13 13 13 13 14 15 16 17 17 17 16
GFDI............1 1 1 1 1 1 2 2 2 2 2 2
Smoke Dispersal.6 7 9 11 13 20 27 35 35 34 32 22
Smoke Cat.......PR PR PR PR PR PR PR PR PR PR PR PR
$$
Forecaster...Cogil
Requested by...Brandon Clough
Type of request...PRESCRIBED
.TAG 2511346.0/DMX
.DELDT 04/22/25
.FormatterVersion 2.0.0
.EMAIL bclough@storycountyiowa.gov