Spot Forecast
Issued by NWS Des Moines, IA

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FNUS73 KDMX 271628
FWSDMX

Spot Forecast for Banner Flats WMA Pennick...Iowa DNR
National Weather Service Des Moines IA
1128 AM CDT Wed Mar 27 2024

Forecast is based on ignition time of 1200 CDT on March 27.
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...

Mostly sunny skies can be expected today with generally seasonal
fire weather conditions. Winds will be steady or only slightly
increase later today with cool temperatures and no humidity
extremes.

.REST OF TODAY...

Sky/weather.........Sunny (15-25 percent).
Max temperature.....Around 43.
Min humidity........37 percent.
Wind (20 ft)........West winds 10 to 12 mph.
Mixing height.......4800 ft AGL.
Transport winds.....West 17 to 20 mph.
Smoke dispersal.....Good (50600 knot-ft) early in the morning
                    increasing to excellent (82400 knot-ft) in the
                    afternoon.
GFDI................6.
Haines Index........5 or moderate potential for large plume
                    dominated fire growth.

TIME (CDT)      12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........26  18  15  20  22  28
Weather cov.....
Weather type....
Tstm cov........
Temp............35  38  39  40  40  41
RH..............47  42  40  39  38  37
20 FT wind dir..W   W   W   W   W   W
20 FT wind spd..12  12  12  10  10  10
20 FT wind gust.17  18  18  20  20  20
Mix hgt (kft)...3.4 3.9 4.2 4.6 4.8 4.5
Transp wind dir.W   W   W   W   W   W
Transp wind spd.17  18  20  20  20  20
GFDI............5   6   6   7   7   6
Haines index....5   5   5   5   5   5
SDspl kt-ft/100051  63  71  79  82  77

.TONIGHT...

Sky/weather.........Partly cloudy (25-35 percent).
Min temperature.....Around 26.
Max humidity........72 percent.
Wind (20 ft)........West winds 5 to 12 mph in the evening becoming
                    light.
Mixing height.......300 ft AGL.
Transport winds.....West 10 to 18 mph decreasing to 3 to 8 mph in
                    the late evening and overnight, then shifting
                    to the east 3 to 5 mph after 3 am.
Smoke dispersal.....Excellent (66400 knot-ft) early in the evening
                    decreasing to poor (1200 knot-ft) late in the
                    night.
GFDI................4.
Haines Index........3 to 5 or very low to moderate potential for
                    large plume dominated fire growth.

TIME (CDT)      6 PM   8 PM   10 PM  MIDNGT 2 AM   4 AM
Sky (%).........33     41     40     36     32     20
Weather cov.....
Weather type....NONE   NONE   NONE   NONE   NONE   NONE
Tstm cov........
Temp............41     37     34     31     30     29
RH..............39     50     64     66     69     72
20 ft wind......W 12   W 8    W 5    W 3    W 3    E 3
20 ft wind gust.20     13     8      6      6      6
Mix hgt (ft)....4200   500    300    400    400    400
Transport wind..W 18   W 10   W 8    W 5    SW 3   E 3
GFDI............6      3      1      1      1      1
Haines index....5      4      4      4      3      3
SDspl kt-ft/100066     4      2      2      1      1

.THURSDAY...

Sky/weather.........Sunny (20-30 percent).
Max temperature.....Around 59.
Min humidity........40 percent.
Wind (20 ft)........Southeast winds 5 to 7 mph shifting to the
                    south 7 to 9 mph in the afternoon.
Mixing height.......4600 ft AGL.
Transport winds.....Southeast 6 to 7 mph shifting to the south 7 to
                    16 mph in the late morning and afternoon.
Smoke dispersal.....Poor (1900 knot-ft) early in the morning
                    increasing to excellent (64700 knot-ft) in the
                    afternoon.
GFDI................3.
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 (%).........17        19        18        30
Weather cov.....
Weather type....NONE      NONE      NONE      NONE
Tstm cov........
Temp............28        34        47        56
RH..............75        61        45        42
20 FT wind......E 5G7     SE 7G9    SE 7G10   S 9G13
Mix hgt (ft)....400       1200      2400      4000
Transport wind..E 6       SE 7      S 8       SW 15
GFDI............1         1         2         5
Haines index....3         3         3         4
SDspl kt-ft/10002         7         16        51

$$
Forecaster...Small
Requested by...Tanner Venteicher
Type of request...PRESCRIBED
.TAG 2408594.0/DMX
.DELDT 03/27/24
.FormatterVersion 2.0.0
.EMAIL tanner.venteicher@dnr.iowa.gov


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