178
FNUS73 KOAX 091257
FWSOAX

Spot Forecast for Round Lake...IA DNR
National Weather Service Omaha/Valley NE
757 AM CDT Mon Jun 9 2025

Forecast is based on ignition time of 0800 CDT on June 09.
If conditions become unrepresentative, contact the National Weather
Service.

.DISCUSSION...

A band of clouds is moving to the south this morning just north of the
burn site, but the chance for any light rain is low. One thing to
note is the increase in winds throughout the morning out of the
northwest. The wind increase is associated with a cold front and
it will pick up a little faster than what we see on a typical
day.

Strongest Possible Wind Speeds on Day of Burn: Gusts to 25-30 MPH

Lowest Possible Relative Humidity on Day of Burn: 40-45%

.REST OF TODAY...

Sky/weather.........Sunny (15-25 percent) then becoming partly
                    sunny (45-55 percent).
Max temperature.....Around 75.
Min humidity........41 percent.
Eye level winds.....Northwest winds up to 13 mph. Gusts up to 29
                    mph in the late morning and afternoon.
Surface winds (mph).Northwest winds 8 to 21 mph. Gusts up to 29 mph
                    in the late morning and afternoon.
Wind (20 ft)........Northwest winds 13 to 18 mph. Gusts up to 29
                    mph in the late morning and afternoon.
Mixing height.......6000 ft AGL.
Transport winds.....Northwest 18 to 25 mph increasing to 22 to 29
                    mph in the late morning and afternoon.
Smoke dispersal.....Good (54100 knot-ft) early in the morning
                    increasing to excellent (121800 knot-ft) in the
                    afternoon.
GFDI................0.

TIME (CDT)      8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........10  5   16  37  54  55  55  55  54  46
Weather cov.....
Weather type....
Tstm cov........
Temp............59  61  64  66  67  69  70  72  73  73
RH..............57  56  54  50  49  47  47  44  43  43
20 FT wind dir..NW  NW  NW  NW  NW  NW  NW  NW  NW  NW
20 FT wind spd..6   11  15  16  17  17  16  15  13  13
20 FT wind gust.7   16  21  22  22  23  23  22  21  19
Eye lvl wnd dir.NW  NW  NW  NW  NW  NW  NW  NW  NW  NW
Eye lvl wnd spd.4   8   11  12  13  13  12  11  10  10
Eye lvl wnd gst.5   12  16  17  17  17  17  17  16  14
Surface wnd dir.NW  NW  NW  NW  NW  NW  NW  NW  NW  NW
Surface wnd spd.8   14  19  20  21  21  20  19  16  16
Surface wnd gst.9   20  26  28  28  29  29  28  26  24
Mix hgt (kft)...2.2 3.3 4.6 5.0 5.1 5.3 5.6 5.9 6.0 5.8
Transp wind dir.NW  NW  NW  NW  NW  NW  NW  NW  NW  NW
Transp wind spd.18  25  29  28  25  24  24  23  22  22
GFDI............0   0   0   0   0   0   0   0   0   0
SDspl kt-ft/100054  90  115 122 118 111 114 116 113 102

.TONIGHT...

Sky/weather.........Partly cloudy (30-40 percent) then becoming
                    mostly cloudy (50-60 percent) then becoming
                    partly cloudy (25-35 percent) then becoming
                    mostly clear (10-20 percent). Patchy smoke
                    early in the evening. Patchy smoke after 3 am.
Min temperature.....Around 51.
Max humidity........89 percent.
Wind (20 ft)........Northwest winds 6 to 13 mph in the evening
                    becoming light.

TIME (CDT)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........36  55  41  26  24  24  23  22  5   22  25  26
Weather cov.....        PTY PTY PTY PTY PTY PTY     PTY PTY PTY
Weather type....        SMK SMK SMK SMK SMK SMK     SMK SMK SMK
Tstm cov........
Temp............73  74  71  66  63  61  59  58  56  54  53  53
RH..............43  41  47  56  60  67  69  75  77  83  86  83
20 FT wind dir..NW  NW  NW  NW  W   SW  SW  SW  SW  SW  SW  SW
20 FT wind spd..12  10  8   6   6   4   3   2   2   2   2   2
20 FT wind gust.18  16  12  10  7   6   6   4           4   4

.TUESDAY...

Sky/weather.........Sunny (5-15 percent). Patchy smoke early in the
                    morning.
Max temperature.....Around 87.
Min humidity........27 percent.
Wind (20 ft)........Light winds becoming southwest 5 to 7 mph in
                    the afternoon.

TIME (CDT)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........21  22  12  2   20  14  8   2   2   3   3   9
Weather cov.....PTY
Weather type....SMK
Tstm cov........
Temp............51  53  57  63  72  78  81  83  85  87  87  87
RH..............89  83  77  67  49  39  34  31  28  27  27  28
20 FT wind dir..SW  SW  SW  SW  W   W   W   W   SW  SW  SW  SW
20 FT wind spd..2   2   2   2   3   4   5   6   6   6   6   6
20 FT wind gust.4   4   4   5   6   6   8   10  10  11  11  11

$$
Forecaster...CLF
Requested by...Doug Chafa
Type of request...PRESCRIBED
.TAG 2515565.0/OAX
.DELDT 06/09/25
.FormatterVersion 2.0.0
.EMAIL Doug.Chafa@dnr.iowa.gov