Text Products for FWS Issued by DMX

Spot Forecast
Issued by NWS Des Moines, IA
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13
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FNUS73 KDMX 211532
FWSDMX

Spot Forecast for Dumont Farms...Iowa DNR
National Weather Service Des Moines IA
1032 AM CDT Sun Apr 21 2024

Forecast is based on ignition time of 1100 CDT on April 21.
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...

Mainly northwest winds of 10 to 15 mph with occasional higher
gusts this morning into early afternoon. Relative humidity
ranges from 30 to 40% late this morning.

.REST OF TODAY...

Sky/weather.........Sunny (0-5 percent).
Max temperature.....Around 60.
Min humidity........24 percent.
Wind (20 ft)........Northwest winds 12 to 14 mph.
Mixing height.......7000 ft AGL.
Transport winds.....Northwest 20 to 21 mph.
Smoke dispersal.....Excellent (84900 knot-ft).
GFDI................1.
Haines Index........4 or low potential for large plume dominated
                    fire growth.

TIME (CDT)      11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........1   2   2   1   2   1   1
Weather cov.....
Weather type....
Tstm cov........
Temp............50  53  54  56  58  59  59
RH..............39  33  31  29  26  25  24
20 FT wind dir..NW  NW  NW  NW  NW  NW  NW
20 FT wind spd..12  14  14  14  14  14  14
20 FT wind gust.14  16  18  20  20  18  17
Mix hgt (kft)...5.0 5.6 6.3 6.8 6.7 7.0 6.9
Transp wind dir.NW  NW  NW  NW  NW  W   W
Transp wind spd.20  20  20  21  20  21  21
GFDI............0   1   1   1   1   1   1
Haines index....4   4   4   4   4   4   4
SDspl kt-ft/100085  96  107 122 115 125 125

.TONIGHT...

Sky/weather.........Mostly clear (5-15 percent). Areas of frost
                    early in the morning.
Min temperature.....Around 35.
Max humidity........69 percent.
Wind (20 ft)........West winds 6 to 12 mph shifting to the
                    southwest 6 to 8 mph in the late evening and
                    overnight.
Mixing height.......400 ft AGL.
Transport winds.....West 12 to 20 mph shifting to the southwest 13
                    to 14 mph after 3 am.
Smoke dispersal.....Excellent (116700 knot-ft) early in the evening
                    decreasing to fair (17900 knot-ft) late in the
                    night decreasing to poor (3500 knot-ft) early
                    in the evening.
GFDI................1.
Haines Index........4 to 5 or low to moderate potential for large
                    plume dominated fire growth.

TIME (CDT)      6 PM   8 PM   10 PM  MIDNGT 2 AM   4 AM
Sky (%).........1      1      3      1      1      12
Weather cov.....
Weather type....NONE   NONE   NONE   NONE   NONE   NONE
Tstm cov........
Temp............60     53     45     41     38     37
RH..............24     35     49     57     64     67
20 ft wind......NW 12  W 6    W 6    SW 6   SW 7   SW 7
20 ft wind gust.15     8      8      8      10     10
Mix hgt (ft)....6900   600    400    400    400    400
Transport wind..W 20   W 12   W 12   W 12   W 12   SW 13
GFDI............1      0      0      0      0      0
Haines index....4      5      5      5      5      5
SDspl kt-ft/1000117    6      4      4      4      4

.MONDAY...

Sky/weather.........Mostly sunny (30-40 percent) then becoming
                    mostly cloudy (70-80 percent). Chance of rain
                    showers late in the afternoon.
Max temperature.....Around 68.
Min humidity........34 percent.
Wind (20 ft)........Breezy. Southwest winds 9 to 18 mph with gusts
                    to around 30 mph increasing to south 22 to 29
                    mph late in the morning.
Mixing height.......4500 ft AGL.
Transport winds.....Southwest 15 to 23 mph increasing to 36 to 39
                    mph.
Smoke dispersal.....Poor (5100 knot-ft) early in the morning
                    increasing to excellent (104400 knot-ft) in the
                    afternoon increasing to excellent (107900
                    knot-ft) in the afternoon.
GFDI................2.
Haines Index........4 to 5 or low to moderate potential for large
                    plume dominated fire growth.

TIME (CDT)      6 AM      9 AM      NOON      3 PM
Sky (%).........11        46        46        70
Weather cov.....
Weather type....NONE      NONE      NONE      NONE
Tstm cov........
Temp............35        45        60        66
RH..............69        55        37        34
20 FT wind......SW 9G14   SW 16G25  S 24G35   S 28G38
Mix hgt (ft)....400       1100      3700      4400
Transport wind..SW 15     SW 23     SW 32     SW 39
GFDI............0         1         2         3
Haines index....5         4         4         4
SDspl kt-ft/10005         22        104       150

$$
Forecaster...Vachalek
Requested by...Adam Kulow
Type of request...PRESCRIBED
.TAG 2411602.0/DMX
.DELDT 04/21/24
.FormatterVersion 2.0.0
.EMAIL adam.kulow@dnr.iowa.gov
National Weather Service Weather Forecast Office
