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000
FNUS73 KDMX 241315
FWSDMX

Spot Forecast for Springbrook...Iowa DNR
National Weather Service Des Moines IA
815 AM CDT Wed Apr 24 2024

Forecast is based on ignition time of 0900 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 starting
primarily out of the east northeast this morning, then switching
to more easterly through mid day and southeasterly in the
afternoon. Relative humidities will also bottom out around 25 to
30 percent this afternoon. The morning surface inversion will
become fully mixed out around noon to 1 pm as well.

.REST OF TODAY...

Sky/weather.........Sunny (15-25 percent).
Max temperature.....Around 66.
Min humidity........31 percent.
Wind (20 ft)........East winds 5 to 6 mph shifting to the southeast
                    around 6 mph late in the afternoon.
Mixing height.......4700 ft AGL.
Transport winds.....Northeast 7 to 9 mph.
Smoke dispersal.....Fair (14000 knot-ft).
GFDI................0.
Haines Index........4 or low potential for large plume dominated
                    fire growth.

TIME (CDT)      9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........38  26  9   5   2   6   8   9   16
Weather cov.....
Weather type....
Tstm cov........
Temp............47  50  54  56  59  62  63  63  64
RH..............70  63  54  47  42  35  32  32  31
20 FT wind dir..E   E   E   E   E   E   E   E   SE
20 FT wind spd..5   6   6   6   6   6   6   6   6
20 FT wind gust.    9   8   8   8   7   8   8   8
Mix hgt (kft)...1.7 2.2 2.6 3.4 4.1 4.3 4.5 4.7 4.3
Transp wind dir.NE  NE  NE  NE  NE  NE  NE  NE  E
Transp wind spd.9   8   7   7   7   7   7   7   7
GFDI............0   0   0   0   0   0   0   0   0
Haines index....4   4   4   4   4   4   4   4   4
SDspl kt-ft/100014  15  16  19  24  25  26  28  28

.TONIGHT...

Sky/weather.........Partly cloudy (30-40 percent) then becoming
                    mostly cloudy (60-70 percent).
Min temperature.....Around 45.
Max humidity........76 percent.
Wind (20 ft)........Southeast winds 7 to 10 mph.
Mixing height.......400 ft AGL.
Transport winds.....Southeast 8 to 15 mph.
Smoke dispersal.....Fair (28400 knot-ft) early in the evening
                    decreasing to poor (4700 knot-ft) late in the
                    night.
GFDI................0.
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 (%).........19     35     46     54     72     69
Weather cov.....
Weather type....NONE   NONE   NONE   NONE   NONE   NONE
Tstm cov........
Temp............63     59     51     49     47     45
RH..............32     39     54     58     65     76
20 ft wind......SE 7   SE 7   SE 8   SE 8   SE 9   SE 10
20 ft wind gust.10     10     13     15     16     18
Mix hgt (ft)....3900   2500   400    400    400    500
Transport wind..SE 8   SE 10  SE 13  SE 14  SE 14  S 15
GFDI............0      0      0      0      0      0
Haines index....4      3      3      3      4      4
SDspl kt-ft/100028     23     5      5      5      6

.THURSDAY...

Sky/weather.........Partly sunny (60-70 percent). Slight chance of
                    rain showers in the afternoon.
Max temperature.....Around 67.
Min humidity........43 percent.
Wind (20 ft)........Southeast winds 10 to 18 mph increasing to
                    around 20 mph late in the afternoon.
Mixing height.......5200 ft AGL.
Transport winds.....Southeast 15 to 24 mph increasing to 25 to 28
                    mph late in the afternoon.
Smoke dispersal.....Poor (6800 knot-ft) early in the morning
                    increasing to excellent (105900 knot-ft) in the
                    afternoon increasing to excellent (104500
                    knot-ft) late in the afternoon.
GFDI................1.
Haines Index........4 or low potential for large plume dominated
                    fire growth.

TIME (CDT)      6 AM      9 AM      NOON      3 PM
Sky (%).........67        56        62        77
Weather cov.....                              S CHC
Weather type....NONE      NONE      NONE      RNSHWR
Tstm cov........
Temp............45        49        62        67
RH..............76        74        52        43
20 FT wind......SE 10G17  SE 14G21  SE 17G25  SE 20G28
Mix hgt (ft)....500       1600      3700      5000
Transport wind..SE 15     SE 20     SE 23     SE 26
GFDI............0         0         1         1
Haines index....4         4         4         4
SDspl kt-ft/10007         26        75        117

$$
Forecaster...Dodson
Requested by...Joshua Peach
Type of request...PRESCRIBED
.TAG 2412243.0/DMX
.DELDT 04/24/24
.FormatterVersion 2.0.0
.EMAIL joshua.peach@dnr.iowa.gov