Text Products for FWS Issued by DMX

Spot Forecast
Issued by NWS Des Moines, IA
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FNUS73 KDMX 211314
FWSDMX

Spot Forecast for Burt Lake WMA...Iowa DNR
National Weather Service Des Moines IA
814 AM CDT Sun Apr 21 2024

Forecast is based on ignition time of 0900 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...

Northwest winds will increase to around 12 mph at ignition time
with relative humidity 45 to 55% this morning. Otherwise, sunshine
and no precipitation for today.


.REST OF TODAY...

Sky/weather.........Sunny (0-5 percent).
Max temperature.....Around 60.
Min humidity........22 percent.
Wind (20 ft)........Northwest winds 12 to 14 mph.
Mixing height.......7300 ft AGL.
Transport winds.....Northwest 15 to 20 mph.
Smoke dispersal.....Fair (13400 knot-ft) early in the morning
                    increasing to excellent (112500 knot-ft) in the
                    afternoon increasing to excellent (122500
                    knot-ft) late in the afternoon.
GFDI................1.
Haines Index........4 to 5 or low to moderate potential for large
                    plume dominated fire growth.

TIME (CDT)      9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........1   1   1   2   1   1   1   0   0
Weather cov.....
Weather type....
Tstm cov........
Temp............40  44  48  51  53  56  58  59  60
RH..............53  46  40  34  32  27  25  23  22
20 FT wind dir..NW  NW  NW  NW  NW  NW  NW  NW  W
20 FT wind spd..12  12  13  14  14  14  14  14  14
20 FT wind gust.17  17  18  18  20  20  20  20  18
Mix hgt (kft)...1.0 2.0 4.7 5.3 6.2 6.6 7.2 7.3 7.2
Transp wind dir.NW  NW  NW  NW  NW  NW  W   W   W
Transp wind spd.15  16  20  20  20  20  20  20  20
GFDI............0   1   1   1   1   2   2   2   2
Haines index....4   4   4   4   5   5   5   5   5
SDspl kt-ft/100013  29  81  91  106 113 123 124 123

.TONIGHT...

Sky/weather.........Mostly clear (10-20 percent).
Min temperature.....Around 37.
Max humidity........64 percent.
Wind (20 ft)........West winds 9 to 13 mph shifting to the
                    southwest in the late evening and overnight.
Mixing height.......400 ft AGL.
Transport winds.....West 12 to 18 mph shifting to the southwest 14
                    to 18 mph overnight.
Smoke dispersal.....Excellent (64300 knot-ft) decreasing to poor
                    (4300 knot-ft) early in the evening.
GFDI................1.
Haines Index........5 or moderate potential for large plume
                    dominated fire growth.

TIME (CDT)      6 PM   8 PM   10 PM  MIDNGT 2 AM   4 AM
Sky (%).........1      2      3      3      16     21
Weather cov.....
Weather type....NONE   NONE   NONE   NONE   NONE   NONE
Tstm cov........
Temp............60     55     46     42     40     39
RH..............22     30     47     55     59     62
20 ft wind......W 13   W 9    SW 9   SW 9   SW 9   S 12
20 ft wind gust.16     13     13     13     14     20
Mix hgt (ft)....6700   600    400    400    400    400
Transport wind..W 18   W 12   W 14   SW 13  S 15   S 18
GFDI............1      1      0      0      0      1
Haines index....5      5      5      5      5      5
SDspl kt-ft/1000106    6      5      4      5      7

.MONDAY...

Sky/weather.........Mostly sunny (40-50 percent) then becoming
                    mostly cloudy (65-75 percent). Chance of rain
                    showers in the afternoon.
Max temperature.....Around 68.
Min humidity........39 percent.
Wind (20 ft)........Breezy. South winds 13 to 22 mph with gusts to
                    around 35 mph shifting to the southwest 22 to
                    28 mph late in the morning.
Mixing height.......4800 ft AGL.
Transport winds.....Southwest 20 to 28 mph increasing to 32 to 41
                    mph in the late morning and afternoon, then
                    decreasing to around 29 mph late in the
                    afternoon.
Smoke dispersal.....Poor (8900 knot-ft) early in the morning
                    increasing to excellent (102300 knot-ft) in the
                    afternoon increasing to excellent (92300
                    knot-ft) in the afternoon.
GFDI................3.
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 (%).........28        36        61        77
Weather cov.....                              CHANCE
Weather type....NONE      NONE      NONE      RNSHWR
Tstm cov........
Temp............38        46        60        65
RH..............64        55        41        40
20 FT wind......S 13G22   S 20G30   S 26G38   SW 26G37
Mix hgt (ft)....500       1200      2900      4300
Transport wind..SW 20     SW 28     SW 41     SW 37
GFDI............1         2         5         5
Haines index....5         5         5         4
SDspl kt-ft/10009         28        102       136

$$
Forecaster...Vachalek
Requested by...Alex Fosado
Type of request...PRESCRIBED
.TAG 2411580.0/DMX
.DELDT 04/21/24
.FormatterVersion 2.0.0
.EMAIL alex.fosado@dnr.iowa.gov
National Weather Service Weather Forecast Office
