Text Products for FWS Issued by DMX

Spot Forecast
Issued by NWS Des Moines, IA
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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
National Weather Service National Headquarters
