Spot Forecast Issued by NWS Des Moines, IA
000
FNUS73 KDMX 281405
FWSDMX
Spot Forecast for big marsh E 14...Iowa DNR
National Weather Service Des Moines IA
905 AM CDT Thu Mar 28 2024
Forecast is based on ignition time of 1000 CDT on March 28.
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...
Quiet conditions expected today with light winds. Poor dispersion is
expected early this morning with increasing winds in the afternoon hours.
No other fire concerns are expected today. Showers will return to the region
later in the period.
.REST OF TODAY...
Sky/weather.........Sunny (10-20 percent).
Max temperature.....Around 46.
Min humidity........50 percent.
Wind (20 ft)........Light winds.
Mixing height.......2900 ft AGL.
Transport winds.....West 6 to 8 mph shifting to the southeast
around 5 mph late in the afternoon.
Smoke dispersal.....Poor (7400 knot-ft) early in the morning
increasing to fair (18100 knot-ft) in the
afternoon.
GFDI................1.
Haines Index........3 to 4 or very low to low potential for large
plume dominated fire growth.
TIME (CDT) 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........26 17 8 11 12 15 9 11
Weather cov.....
Weather type....
Tstm cov........
Temp............32 36 39 41 42 44 45 46
RH..............58 54 52 50 50 51 51 53
20 FT wind dir..N N N N NW W W N
20 FT wind spd..3 3 3 2 2 2 3 3
20 FT wind gust. 6 6
Mix hgt (kft)...1.5 1.7 2.3 2.6 2.5 2.8 2.9 2.8
Transp wind dir.W W W W W W SW SE
Transp wind spd.6 7 8 8 7 7 7 5
GFDI............1 1 1 1 1 1 1 1
Haines index....3 3 3 4 4 4 4 4
SDspl kt-ft/10007 10 16 18 15 17 17 11
.TONIGHT...
Sky/weather.........Partly cloudy (25-35 percent) then becoming
mostly cloudy (50-60 percent).
Min temperature.....Around 29.
Max humidity........84 percent.
Wind (20 ft)........Light winds becoming northeast 5 to 7 mph in
the evening and overnight, then shifting to the
east 8 to 9 mph after 3 am.
Mixing height.......300 ft AGL.
Transport winds.....East 5 to 14 mph increasing to around 15 mph
after 3 am.
Smoke dispersal.....Poor (2200 knot-ft).
GFDI................2.
Haines Index........3 to 4 or very low to low potential for large
plume dominated fire growth.
TIME (CDT) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM
Sky (%).........12 11 10 12 27 47
Weather cov.....
Weather type....NONE NONE NONE NONE NONE NONE
Tstm cov........
Temp............45 40 34 31 29 30
RH..............55 67 76 84 84 83
20 ft wind......N 3 NE 6 NE 7 E 6 E 7 E 8
20 ft wind gust.5 7 9 9 13 15
Mix hgt (ft)....2000 300 400 400 400 400
Transport wind..E 5 NE 8 NE 10 E 12 E 13 E 15
GFDI............1 1 1 1 1 2
Haines index....4 4 4 4 3 3
SDspl kt-ft/10008 2 3 4 4 6
.FRIDAY...
Sky/weather.........Mostly cloudy (70-80 percent). Slight chance of
rain showers in the afternoon.
Max temperature.....Around 59.
Min humidity........61 percent.
Wind (20 ft)........Southeast winds 9 to 18 mph.
Mixing height.......2000 ft AGL.
Transport winds.....Southeast 16 to 22 mph.
Smoke dispersal.....Poor (6600 knot-ft) early in the morning
increasing to good (35200 knot-ft) in the
afternoon.
GFDI................7 increasing to 11 late in the afternoon.
Haines Index........3 or very low potential for large plume
dominated fire growth.
TIME (CDT) 6 AM 9 AM NOON 3 PM
Sky (%).........64 78 83 88
Weather cov..... S CHC
Weather type....NONE NONE NONE RNSHWR
Tstm cov........
Temp............31 35 50 57
RH..............83 92 62 62
20 FT wind......E 9G17 SE 13G18 SE 15G23 SE 18G26
Mix hgt (ft)....500 1000 1600 1900
Transport wind..E 16 SE 20 SE 21 SE 22
GFDI............2 3 7 11
Haines index....3 3 3 3
SDspl kt-ft/10007 17 29 35
$$
Forecaster...Vachalek
Requested by...Adam Kulow
Type of request...PRESCRIBED
.TAG 2408755.0/DMX
.DELDT 03/28/24
.FormatterVersion 2.0.0
.EMAIL adam.kulow@dnr.iowa.gov