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000
FNUS73 KDMX 241222
FWSDMX

Spot Forecast for Lake Edwards - Peck...Iowa DNR
National Weather Service Des Moines IA
722 AM CDT Wed Apr 24 2024

Forecast is based on ignition time of 0800 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...

Light northeast to east winds are expected this morning becoming
southeast into the afternoon. Relative humidity values are
expected to drop to around 30 percent by mid afternoon.

.REST OF TODAY...

Sky/weather.........Sunny (0-10 percent). Areas of frost early in
                    the morning.
Temperature.........38 at ignition...Max 61.
RH..................77 percent at ignition...Min 32 percent.
Wind (20 ft)........Winds east at 5 mph at ignition...otherwise
                    East winds 5 to 7 mph shifting to the southeast
                    around 6 mph late in the afternoon.
Mixing height.......900 ft AGL at ignition...otherwise 4600 ft AGL.
Transport winds.....East 7 to 10 mph.
Smoke dispersal.....Poor /8400 knot-ft/ at ignition. Max...fair
                    /27900 knot-ft/.
GFDI................0.
Haines Index........3 or very low potential for large plume
                    dominated fire growth at ignition...max 3.

TIME (CDT)      8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........1   4   1   1   0   0   3   3   4   7
Weather cov.....ARS
Weather type....FST
Tstm cov........
Temp............38  41  44  48  51  53  55  58  58  59
RH..............77  66  57  49  44  43  40  34  34  32
20 FT wind dir..E   E   SE  SE  SE  E   E   SE  SE  SE
20 FT wind spd..5   6   7   7   6   6   6   6   6   6
20 FT wind gust.        10  9   8   8   8   8   8   9
Mix hgt (kft)...0.9 1.3 1.9 2.7 3.3 3.9 4.2 4.4 4.6 4.5
Transp wind dir.E   E   E   NE  NE  NE  NE  E   E   E
Transp wind spd.10  10  8   7   7   7   7   7   7   7
GFDI............0   0   0   0   0   0   0   0   0   0
Haines index....3   3   3   3   3   3   3   3   3   3
SDspl kt-ft/10008   12  13  16  19  24  25  26  28  27

.TONIGHT...

Sky/weather.........Partly cloudy (20-30 percent) then becoming
                    mostly cloudy (60-70 percent).
Temperature.........Min 41.
RH..................Max 70 percent.
Wind (20 ft)........Southeast winds 7 to 12 mph.
Mixing height.......400 ft AGL.
Transport winds.....Southeast 7 to 16 mph shifting to the south
                    around 17 mph after 3 am.
Smoke dispersal.....Fair (28400 knot-ft) early in the evening
                    decreasing to poor (4700 knot-ft) late in the
                    night.
GFDI................1.
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 (%).........8      14     35     46     67     66
Weather cov.....
Weather type....NONE   NONE   NONE   NONE   NONE   NONE
Tstm cov........
Temp............59     54     46     43     43     41
RH..............32     38     53     57     60     67
20 ft wind......SE 7   SE 7   SE 8   SE 9   SE 10  SE 10
20 ft wind gust.9      12     14     17     17     18
Mix hgt (ft)....4300   2800   400    500    500    700
Transport wind..SE 7   SE 9   SE 13  S 14   S 15   S 17
GFDI............0      1      0      0      0      0
Haines index....3      4      4      4      4      4
SDspl kt-ft/100027     24     5      5      7      10

.THURSDAY...

Sky/weather.........Mostly sunny (40-50 percent).
Temperature.........Max 65.
RH..................Min 38 percent.
Wind (20 ft)........Southeast winds 12 to 21 mph.
Mixing height.......5000 ft AGL.
Transport winds.....South 17 to 26 mph.
Smoke dispersal.....Poor (8700 knot-ft) early in the morning
                    increasing to excellent (106400 knot-ft) in the
                    afternoon increasing to excellent (103700
                    knot-ft) late in the afternoon.
GFDI................2.
Haines Index........4 or low potential for large plume dominated
                    fire growth.

TIME (CDT)      6 AM      9 AM      NOON      3 PM
Sky (%).........56        45        41        36
Weather cov.....
Weather type....NONE      NONE      NONE      NONE
Tstm cov........
Temp............41        46        59        65
RH..............70        68        47        40
20 FT wind......SE 12G20  SE 15G23  SE 20G25  SE 21G28
Mix hgt (ft)....600       1500      3400      4700
Transport wind..S 17      S 21      S 24      S 26
GFDI............0         1         2         3
Haines index....4         4         4         4
SDspl kt-ft/10009         27        72        106

$$
Forecaster...Cogil
Requested by...Nate Mead
Type of request...PRESCRIBED
.TAG 2412205.0/DMX
.DELDT 04/24/24
.FormatterVersion 2.0.0
.EMAIL nate.mead@dnr.iowa.gov