Spot Forecast
Issued by NWS Des Moines, IA

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Spot Forecast for Willis...RES p/Iowa NRCS
National Weather Service Des Moines IA
1109 AM CDT Tue May 14 2024

Forecast is based on ignition time of 1400 CDT on May 14.
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...

Clear conditions today with temperatures in the low 70s. Relative
humidity this afternoon will drop near 40 percent. Wind out of the
northeast this morning will become more easterly this afternoon at
10-15 mph.

.REST OF TODAY...

Sky/weather.........Partly sunny (50-60 percent).
Max temperature.....Around 71.
Min humidity........51 percent.
Wind (20 ft)........East winds around 10 mph.
Mixing height.......5000 ft AGL.
Transport winds.....East around 15 mph.
Smoke dispersal.....Good (52500 knot-ft) early in the morning
                    increasing to excellent (64700 knot-ft) in the
                    afternoon.
GFDI................0.
Haines Index........3 or very low potential for large plume
                    dominated fire growth.

TIME (CDT)      2PM 3PM 4PM 5PM
Sky (%).........55  55  55  52
Weather cov.....
Weather type....
Tstm cov........
Temp............66  68  69  68
RH..............58  52  51  51
20 FT wind dir..E   E   E   E
20 FT wind spd..10  10  10  10
20 FT wind gust.13  13  13  13
Mix hgt (kft)...4.0 4.7 4.8 5.0
Transp wind dir.E   E   E   E
Transp wind spd.15  15  15  15
GFDI............0   0   0   0
Haines index....3   3   3   3
SDspl kt-ft/100053  61  62  65

.TONIGHT...

Sky/weather.........Mostly cloudy (50-60 percent) then becoming
                    partly cloudy (30-40 percent).
Min temperature.....Around 48.
Max humidity........83 percent.
Wind (20 ft)........East winds 7 to 12 mph.
Mixing height.......400 ft AGL.
Transport winds.....East 10 to 14 mph.
Smoke dispersal.....Good (59000 knot-ft) early in the evening
                    decreasing to poor (3800 knot-ft) late in the
                    night.
GFDI................0.
Haines Index........3 or very low potential for large plume
                    dominated fire growth.

TIME (CDT)      6 PM   8 PM   10 PM  MIDNGT 2 AM   4 AM
Sky (%).........53     29     32     31     32     37
Weather cov.....
Weather type....NONE   NONE   NONE   NONE   NONE   NONE
Tstm cov........
Temp............68     64     58     55     52     50
RH..............52     58     72     77     83     83
20 ft wind......E 12   E 10   E 8    E 7    E 7    E 7
20 ft wind gust.14     14     13     12     12     10
Mix hgt (ft)....4900   800    600    400    500    500
Transport wind..E 14   E 13   E 13   E 10   E 12   E 12
GFDI............0      0      0      0      0      0
Haines index....3      3      3      3      3      3
SDspl kt-ft/100059     9      7      4      5      5

.WEDNESDAY...

Sky/weather.........Mostly sunny (35-45 percent).
Max temperature.....Around 73.
Min humidity........42 percent.
Wind (20 ft)........Southeast winds 8 to 12 mph shifting to the
                    south around 12 mph late in the afternoon.
Mixing height.......5200 ft AGL.
Transport winds.....Southeast 9 to 15 mph shifting to the south 15
                    to 16 mph late in the afternoon.
Smoke dispersal.....Poor (5600 knot-ft) early in the morning
                    increasing to excellent (73500 knot-ft) in the
                    afternoon.
GFDI................0.
Haines Index........3 or very low potential for large plume
                    dominated fire growth.

TIME (CDT)      6 AM      9 AM      NOON      3 PM
Sky (%).........32        26        37        56
Weather cov.....
Weather type....NONE      NONE      NONE      NONE
Tstm cov........
Temp............49        56        67        71
RH..............83        64        45        42
20 FT wind......E 8G12    E 9G10    SE 10G14  SE 12G15
Mix hgt (ft)....500       1300      3100      4800
Transport wind..E 13      E 12      SE 12     S 15
GFDI............0         0         0         0
Haines index....3         3         3         3
SDspl kt-ft/10006         13        32        62

$$
Forecaster...Hagenhoff
Requested by...Danny Simcox
Type of request...PRESCRIBED
.TAG 2414158.0/DMX
.DELDT 05/14/24
.FormatterVersion 2.0.0
.EMAIL dsimcox@res.us