Spot Forecast Issued by NWS Des Moines, IA
000
FNUS73 KDMX 241311
FWSDMX
Spot Forecast for Schrader- North Unit...Iowa DNR
National Weather Service Des Moines IA
811 AM CDT Wed Apr 24 2024
Forecast is based on ignition time of 1400 CDT on April 24.
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...
Minimal fire weather concerns today. Winds will be light and
variable starting primarily out of the northeast this morning,
then switching to more easterly by mid day and southeasterly
through the afternoon. Relative humidities will also bottom out
around 25 to 30 percent this afternoon.
.REST OF TODAY...
Sky/weather.........Sunny (5-15 percent).
Max temperature.....Around 65.
Min humidity........29 percent.
Wind (20 ft)........Southeast winds 6 to 8 mph.
Mixing height.......5100 ft AGL.
Transport winds.....East around 7 mph shifting to the southeast 7
to 8 mph late in the afternoon.
Smoke dispersal.....Fair (26000 knot-ft) early in the morning
increasing to good (33500 knot-ft) in the
afternoon.
GFDI................1.
Haines Index........4 or low potential for large plume dominated
fire growth.
TIME (CDT) 2PM 3PM 4PM 5PM
Sky (%).........4 6 12 14
Weather cov.....
Weather type....
Tstm cov........
Temp............62 63 64 64
RH..............32 30 29 29
20 FT wind dir..SE SE SE SE
20 FT wind spd..6 7 7 8
20 FT wind gust.8 9 9 10
Mix hgt (kft)...4.6 4.9 5.1 4.7
Transp wind dir.E SE SE SE
Transp wind spd.7 7 7 8
GFDI............0 0 0 1
Haines index....4 4 4 4
SDspl kt-ft/100026 27 31 34
.TONIGHT...
Sky/weather.........Partly cloudy (35-45 percent) then becoming
mostly cloudy (60-70 percent).
Min temperature.....Around 45.
Max humidity........76 percent.
Wind (20 ft)........Southeast winds 8 to 13 mph.
Mixing height.......500 ft AGL.
Transport winds.....South 10 to 16 mph.
Smoke dispersal.....Good (36900 knot-ft) early in the evening
decreasing to poor (5000 knot-ft) late in the
night.
GFDI................1.
Haines Index........4 or low potential for large plume dominated
fire growth.
TIME (CDT) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM
Sky (%).........32 39 54 67 78 64
Weather cov.....
Weather type....NONE NONE NONE NONE NONE NONE
Tstm cov........
Temp............64 59 53 50 49 46
RH..............29 37 52 54 61 73
20 ft wind......SE 8 SE 8 SE 10 SE 12 SE 12 SE 12
20 ft wind gust.10 13 16 18 20 21
Mix hgt (ft)....4200 2600 500 500 500 600
Transport wind..S 10 S 12 SE 13 S 15 S 16 S 16
GFDI............1 1 1 1 0 0
Haines index....4 4 4 4 4 4
SDspl kt-ft/100036 27 5 6 7 8
.THURSDAY...
Sky/weather.........Partly sunny (60-70 percent). Slight chance of
rain showers in the morning and early
afternoon. Chance of rain showers late in the
afternoon.
Max temperature.....Around 65.
Min humidity........43 percent.
Wind (20 ft)........Southeast winds 13 to 22 mph increasing to 23
to 24 mph late in the afternoon.
Mixing height.......4800 ft AGL.
Transport winds.....Southeast 16 to 25 mph increasing to 26 to 30
mph in the afternoon.
Smoke dispersal.....Poor (8300 knot-ft) early in the morning
increasing to excellent (82500 knot-ft) in the
afternoon increasing to excellent (106100
knot-ft) in the afternoon.
GFDI................2.
Haines Index........3 to 4 or very low to low potential for large
plume dominated fire growth.
TIME (CDT) 6 AM 9 AM NOON 3 PM
Sky (%).........66 54 57 74
Weather cov..... S CHC S CHC S CHC
Weather type....NONE RNSHWR RNSHWR RNSHWR
Tstm cov........
Temp............46 50 61 65
RH..............73 71 48 43
20 FT wind......SE 13G21 SE 17G23 SE 20G29 SE 23G32
Mix hgt (ft)....600 1400 3800 4800
Transport wind..S 16 SE 21 SE 25 SE 29
GFDI............0 1 2 3
Haines index....4 4 4 3
SDspl kt-ft/10008 25 83 117
$$
Forecaster...Dodson
Requested by...Jeff Feisel
Type of request...PRESCRIBED
.TAG 2412223.0/DMX
.DELDT 04/24/24
.FormatterVersion 2.0.0
.EMAIL jeffrey.feisel@dnr.iowa.gov