National Weather Service Weather Forecast Office

• Home
• Site Map
• News
• Organization
• Search for: NWS All NOAA 

000
FNUS73 KDMX 241217
FWSDMX

Spot Forecast for Alex Fosado...Iowa DNR
National Weather Service Des Moines IA
717 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).
Temperature.........41 at ignition...Max 64.
RH..................76 percent at ignition...Min 30 percent.
Wind (20 ft)........Winds east at 5 mph at ignition...otherwise
                    East winds around 5 mph shifting to the
                    southeast 6 to 9 mph in the late morning and
                    afternoon.
Mixing height.......1000 ft AGL at ignition...otherwise 4800 ft
                    AGL.
Transport winds.....East 7 to 9 mph shifting to the south 7 to 8
                    mph late in the afternoon.
Smoke dispersal.....Poor /8100 knot-ft/ at ignition. Max...good
                    /33200 knot-ft/.
GFDI................1.
Haines Index........3 or very low potential for large plume
                    dominated fire growth at ignition...max 4.

TIME (CDT)      8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........8   4   3   5   1   0   2   4   4   7
Weather cov.....
Weather type....
Tstm cov........
Temp............41  44  48  52  55  57  60  61  62  63
RH..............76  65  56  50  45  40  36  33  32  30
20 FT wind dir..E   SE  SE  SE  SE  SE  SE  SE  SE  SE
20 FT wind spd..5   6   8   8   7   7   7   7   8   9
20 FT wind gust.        9   9   8   8   8   9   9   10
Mix hgt (kft)...1.0 1.5 2.0 2.8 3.5 4.2 4.4 4.6 4.8 4.7
Transp wind dir.E   E   E   E   E   NE  E   SE  S   S
Transp wind spd.9   7   8   8   8   8   8   7   7   8
GFDI............0   0   0   0   0   0   0   0   0   1
Haines index....3   3   3   3   3   4   4   4   4   4
SDspl kt-ft/10008   9   14  19  24  29  29  28  29  33

.TONIGHT...

Sky/weather.........Partly cloudy (25-35 percent) then becoming
                    mostly cloudy (50-60 percent) then becoming
                    partly cloudy (45-55 percent) then becoming
                    mostly cloudy (70-80 percent).
Temperature.........Min 44.
RH..................Max 65 percent.
Wind (20 ft)........Southeast winds 8 to 13 mph.
Mixing height.......400 ft AGL.
Transport winds.....South 10 to 17 mph.
Smoke dispersal.....Good (44000 knot-ft) early in the evening
                    decreasing to poor (4700 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 (%).........17     28     54     66     77     77
Weather cov.....
Weather type....NONE   NONE   NONE   NONE   NONE   NONE
Tstm cov........
Temp............63     58     51     49     47     45
RH..............30     37     48     50     53     62
20 ft wind......SE 9   SE 8   SE 9   SE 12  SE 12  SE 13
20 ft wind gust.10     13     15     18     20     21
Mix hgt (ft)....4500   3100   400    400    600    800
Transport wind..S 10   S 12   S 13   S 15   S 17   S 17
GFDI............1      1      0      1      1      1
Haines index....4      4      4      4      4      4
SDspl kt-ft/100039     32     5      6      8      11

.THURSDAY...

Sky/weather.........Partly sunny (55-65 percent).
Temperature.........Max 67.
RH..................Min 40 percent.
Wind (20 ft)........Breezy. Southeast winds 13 to 22 mph increasing
                    to 23 to 25 mph with gusts to around 36 mph in
                    the afternoon.
Mixing height.......5200 ft AGL.
Transport winds.....South 17 to 26 mph increasing to 28 to 29 mph
                    late in the afternoon.
Smoke dispersal.....Poor (9100 knot-ft) early in the morning
                    increasing to excellent (108700 knot-ft) in the
                    afternoon increasing to excellent (116000
                    knot-ft) late in the afternoon.
GFDI................3.
Haines Index........4 or low potential for large plume dominated
                    fire growth.

TIME (CDT)      6 AM      9 AM      NOON      3 PM
Sky (%).........61        58        64        62
Weather cov.....
Weather type....NONE      NONE      NONE      NONE
Tstm cov........
Temp............45        49        62        67
RH..............65        68        46        40
20 FT wind......SE 13G21  SE 16G25  SE 22G31  SE 24G35
Mix hgt (ft)....700       1800      3700      4900
Transport wind..S 17      S 23      S 26      S 28
GFDI............1         1         2         4
Haines index....4         4         4         4
SDspl kt-ft/100010        35        86        116

$$
Forecaster...Cogil
Requested by...Alex Fosado
Type of request...PRESCRIBED
.TAG 2412203.0/DMX
.DELDT 04/24/24
.FormatterVersion 2.0.0
.EMAIL alex.fosado@dnr.iowa.gov