553
FNUS73 KDMX 291325
FWSDMX

Spot Forecast for Sunken Grove Brush Piles...Iowa DNR
National Weather Service Des Moines IA
825 AM CDT Wed May 29 2024

Forecast is based on ignition time of 0900 CDT on May 29.
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...

Very quiet day on the weather side of things with initially clear
skies giving way to some fair weather cumulus by the afternoon.
Winds will begin out of the ESE and shift SE for much of the day.
Surface winds speeds around/less than 10mph.

.REST OF TODAY...

Sky/weather.........Sunny (0-10 percent).
Max temperature.....Around 74.
Min humidity........37 percent.
Wind (20 ft)........Southeast winds 6 to 7 mph increasing to 7 to 9
                    mph late in the afternoon.
Mixing height.......6200 ft AGL.
Transport winds.....Southeast 7 to 9 mph increasing to around 9 mph
                    late in the afternoon.
Smoke dispersal.....Poor (11400 knot-ft) early in the morning
                    increasing to good (48900 knot-ft) in the
                    afternoon.
GFDI................0.
Haines Index........3 to 4 or very low to low potential for large
                    plume dominated fire growth.

TIME (CDT)      9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........1   1   1   2   4   4   4   4   4
Weather cov.....
Weather type....
Tstm cov........
Temp............60  63  65  67  69  70  72  73  73
RH..............69  60  54  49  44  42  40  38  37
20 FT wind dir..E   E   SE  SE  SE  SE  SE  SE  SE
20 FT wind spd..6   7   7   6   6   6   7   8   9
20 FT wind gust.                            12  13
Mix hgt (kft)...1.6 3.1 4.3 4.9 5.3 5.6 5.8 6.2 6.1
Transp wind dir.E   E   E   E   SE  E   SE  SE  SE
Transp wind spd.8   9   8   8   7   8   8   8   9
GFDI............0   0   0   0   0   0   0   0   0
Haines index....4   4   4   4   3   3   3   3   3
SDspl kt-ft/100011  25  30  34  32  39  41  44  49

.TONIGHT...

Sky/weather.........Mostly clear (5-15 percent).
Min temperature.....Around 53.
Max humidity........80 percent.
Wind (20 ft)........Southeast winds 8 to 12 mph.
Mixing height.......400 ft AGL.
Transport winds.....Southeast 9 to 17 mph.
Smoke dispersal.....Good (48300 knot-ft) early in the evening
                    decreasing to poor (5400 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 (%).........2      3      3      4      9      13
Weather cov.....
Weather type....NONE   NONE   NONE   NONE   NONE   NONE
Tstm cov........
Temp............74     68     61     58     55     55
RH..............35     47     62     69     77     80
20 ft wind......SE 9   SE 9   SE 9   SE 9   SE 9   SE 10
20 ft wind gust.13     13     16     18     18     21
Mix hgt (ft)....6000   600    400    400    400    500
Transport wind..S 9    SE 12  SE 14  S 15   S 16   SE 17
GFDI............0      0      0      0      0      0
Haines index....3      4      4      4      4      4
SDspl kt-ft/100048     6      5      6      6      7

.THURSDAY...

Sky/weather.........Mostly sunny (40-50 percent) then becoming
                    mostly cloudy (70-80 percent). Slight chance of
                    rain showers in the afternoon. Slight chance of
                    thunderstorms late in the afternoon.
Max temperature.....Around 77.
Min humidity........51 percent.
Wind (20 ft)........Southeast winds 13 to 18 mph. Gusty and erratic
                    winds expected near thunderstorms late in the
                    afternoon.
Mixing height.......3900 ft AGL.
Transport winds.....South 18 to 26 mph.
Smoke dispersal.....Poor (8800 knot-ft) early in the morning
                    increasing to excellent (85400 knot-ft) in the
                    afternoon.
GFDI................0.
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 (%).........24        42        56        74
Weather cov.....                              S CHC
Weather type....NONE      NONE      NONE      RNSHWR
Tstm cov........
Temp............55        62        70        74
RH..............77        67        57        51
20 FT wind......SE 13G22  SE 16G26  SE 18G26  S 17G24
Mix hgt (ft)....600       1700      3000      3700
Transport wind..S 18      S 24      S 24      S 25
GFDI............0         0         0         0
Haines index....4         3         3         3
SDspl kt-ft/10009         35        65        80

$$
Forecaster...Curtis
Requested by...Jeff Feisel
Type of request...PRESCRIBED
.TAG 2415284.0/DMX
.DELDT 05/29/24
.FormatterVersion 2.0.0
.EMAIL jeffrey.feisel@dnr.iowa.gov