061
FNUS73 KDMX 121402
FWSDMX

Spot Forecast for Easter Lake Prescribed Fire...Polk County Conservation
National Weather Service Des Moines IA
902 AM CDT Wed Mar 12 2025

Forecast is based on ignition time of 0900 CDT on March 12.
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...

Generally light southeast to northeast surface winds through the
day.  No threat of rainfall with sunny skies.

.REST OF TODAY...

Sky/weather.........Mostly sunny (25-35 percent).
Max temperature.....Around 67.
Min humidity........40 percent.
Wind (20 ft)........Light winds becoming east around 5 mph late in
                    the afternoon.
Mixing height.......2400 ft AGL.
Transport winds.....East 5 to 8 mph.
Smoke dispersal.....Poor (3100 knot-ft) early in the morning
                    increasing to fair (16900 knot-ft) in the
                    afternoon.
Smoke dispersal.....Poor (3100 knot-ft) early in the morning
                    increasing to fair (16900 knot-ft) in the
                    afternoon.

TIME (CDT)      9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........19  16  19  21  25  32  38  37  39
Weather cov.....
Weather type....
Tstm cov........
Temp............38  43  48  53  57  61  63  65  65
RH..............67  60  54  46  43  41  41  40  40
20 FT wind dir..E   SE  E   E   E   E   E   E   E
20 FT wind spd..3   3   3   3   2   3   3   5   5
20 FT wind gust.7   6   5   6   6   6   7   7   7
Mix hgt (kft)...0.4 1.0 1.0 1.2 1.6 1.7 2.2 2.4 2.4
Transp wind dir.E   SE  E   E   E   E   E   E   E
Transp wind spd.8   6   5   5   7   7   8   8   8
Vrate kt-ft/1K..3   5   4   5   10  10  16  17  17
Ventrate Cat....PR  PR  PR  PR  PR  PR  PR  PR  PR
SDspl kt-ft/10003   5   4   5   10  10  16  17  17

.TONIGHT...

Sky/weather.........Partly cloudy (25-35 percent) then becoming
                    clear (0-10 percent).
Min temperature.....Around 38.
Max humidity........92 percent.
Wind (20 ft)........East winds around 5 mph becoming light.
Mixing height.......300 ft AGL.
Transport winds.....East 9 to 12 mph.
Smoke dispersal.....Fair (16400 knot-ft) early in the evening
                    decreasing to poor (2700 knot-ft) late in the
                    night.
Smoke dispersal.....Fair (16400 knot-ft) early in the evening
                    decreasing to poor (2700 knot-ft) late in the
                    night.

TIME (CDT)      6 PM   8 PM   10 PM  MIDNGT 2 AM   4 AM
Sky (%).........49     37     26     10     2      4
Weather cov.....
Weather type....NONE   NONE   NONE   NONE   NONE   NONE
Tstm cov........
Temp............64     58     51     47     45     40
RH..............41     53     66     76     76     92
20 ft wind......E 5    NE 5   E 5    E 5    E 5    E 5
20 ft wind gust.6      7      7      8      7      7
Mix hgt (ft)....2000   400    400    400    400    300
Transport wind..E 9    E 10   E 12   E 12   E 10   E 9
Vrate kt-ft/1K..16     4      4      4      3      3
Ventrate Cat....POOR   POOR   POOR   POOR   POOR   POOR
SDspl kt-ft/100016     4      4      4      3      3

.THURSDAY...

Sky/weather.........Sunny (5-15 percent).
Max temperature.....Around 75.
Min humidity........38 percent.
Wind (20 ft)........Light winds becoming southeast 5 to 12 mph
                    early in the morning, then increasing to 10 to
                    12 mph late in the afternoon.
Mixing height.......3300 ft AGL.
Transport winds.....Southeast around 9 mph shifting to the south in
                    the afternoon.
Smoke dispersal.....Poor (2700 knot-ft) early in the morning
                    increasing to good (39700 knot-ft) in the
                    afternoon.
Smoke dispersal.....Poor (2700 knot-ft) early in the morning
                    increasing to good (39700 knot-ft) in the
                    afternoon.

TIME (CDT)      6 AM      9 AM      NOON      3 PM
Sky (%).........3         4         10        11
Weather cov.....
Weather type....NONE      NONE      NONE      NONE
Tstm cov........
Temp............39        43        61        71
RH..............89        82        51        41
20 FT wind......E 3G6     E 6G8     SE 9G13   SE 12G16
Mix hgt (ft)....300       400       1500      2800
Transport wind..E 9       E 9       SE 9      S 12
Vrate kt-ft/1K..3         3         12        29
Ventrate Cat....POOR      POOR      POOR      POOR
SDspl kt-ft/10003         3         12        29

$$
Forecaster...Cogil
Requested by...Douglas Todey
Type of request...PRESCRIBED
.TAG 2506162.0/DMX
.DELDT 03/12/25
.FormatterVersion 2.0.0
.EMAIL douglas.todey@polkcountyiowa.gov