Spot Forecast
Issued by NWS Omaha/Valley, NE

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FWSOAX

Spot Forecast for Solar Panel Burn...Pottawattamie Conservation
National Weather Service Omaha/Valley NE
125 PM CDT Tue Aug 11 2026

Forecast is based on ignition time of 1300 CDT on August 11.
If conditions become unrepresentative, contact the National Weather
Service.

.DISCUSSION...

Fire danger remains in the low category for today and tomorrow.
Winds largely remain from the south southeast this afternoon at
12 mph or less, then turn easterly by 7 pm. Expect winds under 5
mph for the majority of the evening before a slight uptick in
speed occurs after 12 am. Minimum RH this afternoon reaches 53%,
with gradual recovery expected thereafter to 95% by Wednesday
morning.

Winds Wednesday are forecast to be from the northeast by 6 am,
with speeds largely under 12 mph. Minimum RH falls to 59% by
Wednesday afternoon.

Strongest Possible 30 ft Wind Speeds on Day of Burn: 13 mph on
Wednesday afternoon.

Lowest Possible Relative Humidity on Day of Burn: 53% this
afternoon.

.REST OF TODAY...

Sky/weather.........Mostly sunny (25-35 percent).
Max temperature.....Around 94.
Min humidity........53 percent.
Eye level winds.....Light winds.
Wind (30 ft)........Light winds.
Wind (20 ft)........Light winds.
Mixing height.......3600 ft AGL.
Transport winds.....North 7 to 9 mph shifting to the west around 8
                    mph late in the afternoon.
Smoke dispersal.....Fair (16300 knot-ft).
GFDI................0.

TIME (CDT)      1PM 2PM 3PM 4PM 5PM
Sky (%).........29  32  32  30  31
Weather cov.....
Weather type....
Tstm cov........
Temp............89  91  91  92  93
RH..............59  54  54  53  53
20 ft wind dir..SE  S   S   S   S
20 ft wind spd..4   4   4   4   3
20 ft wind gust.10  10  8   8   7
Eye lvl wnd dir.SE  S   S   S   S
Eye lvl wnd spd.3   3   3   3   2
Eye lvl wnd gst.7   7   6   6   5
30 ft wnd dir...SE  S   S   S   S
30 ft wnd spd...5   5   5   5   4
30 ft wnd gst...12  12  10  10  9
Mix hgt (kft)...2.7 3.2 3.4 3.6 3.5
Transp wind dir.N   N   N   N   W
Transp wind spd.7   8   9   9   8
GFDI............0   0   0   0   0
SDspl kt-ft/100016  22  27  29  25

.TONIGHT...

Sky/weather.........Partly cloudy (30-40 percent) then becoming
                    mostly cloudy (55-65 percent) then becoming
                    partly cloudy (35-45 percent).
Min temperature.....Around 72.
Max humidity........95 percent.
Eye level winds.....Light winds.
Wind (30 ft)........Light winds.
Wind (20 ft)........Light winds.
Mixing height.......400 ft AGL.
Transport winds.....South around 7 mph shifting to the east in the
                    evening and overnight, then shifting to the
                    southeast 10 to 12 mph overnight shifting to
                    the northwest around 10 mph early in the
                    morning.
Smoke dispersal.....Fair (17300 knot-ft) early in the evening
                    decreasing to poor (3500 knot-ft) late in the
                    night.
GFDI................0.

TIME (CDT)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........31  31  30  28  32  39  46  57  61  58  57  42
Weather cov.....
Weather type....
Tstm cov........
Temp............91  89  87  82  80  79  77  77  76  76  75  74
RH..............56  61  64  75  83  83  86  86  86  84  89  91
20 ft wind dir..S   SE  E   E   E   E   E   E   E   E   E   E
20 ft wind spd..3   2   2   3   4   4   4   4   4   4   4   4
20 ft wind gust.6   6   6   6   7   7   8   8   8   7   8   8
Eye lvl wnd dir.S   SE  E   E   E   E   E   E   E   E   E   E
Eye lvl wnd spd.2   1   1   2   3   3   3   3   3   3   3   3
Eye lvl wnd gst.5   4   4   5   5   5   6   6   6   5   6   6
30 ft wnd dir...S   SE  E   E   E   E   E   E   E   E   E   E
30 ft wnd spd...4   3   3   4   5   5   5   5   5   5   5   5
30 ft wnd gst...8   7   7   8   9   9   10  10  10  9   10  10
Mix hgt (kft)...3.0 1.5 0.6 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.4 0.5
Transp wind dir.S   E   E   E   E   E   SE  SE  SE  SE  SE  NW
Transp wind spd.7   8   8   8   9   9   10  12  10  12  12  10
GFDI............0   0   0   0   0   0   0   0   0   0   0   0
SDspl kt-ft/100017  10  7   5   4   4   4   5   5   5   5   4

.WEDNESDAY...

Sky/weather.........Mostly sunny (40-50 percent).
Max temperature.....Around 90.
Min humidity........59 percent.
Eye level winds.....Northeast winds around 4 mph.
Wind (30 ft)........Northeast winds around 6 mph.
Wind (20 ft)........Light winds becoming northeast around 5 mph
                    early in the afternoon, then becoming light
                    late in the afternoon.
Mixing height.......3500 ft AGL.
Transport winds.....South around 9 mph shifting to the east.
Smoke dispersal.....Poor (4100 knot-ft) early in the morning
                    increasing to good (32000 knot-ft) in the
                    afternoon.
GFDI................0.

TIME (CDT)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........59  56  61  53  40  31  32  32  37  37  35  33
Weather cov.....
Weather type....
Tstm cov........
Temp............73  72  74  77  80  82  85  87  87  88  89  88
RH..............94  95  92  84  76  73  71  65  65  62  59  62
20 ft wind dir..NE  NE  E   NE  E   NE  NE  NE  NE  NE  NE  NE
20 ft wind spd..4   4   4   4   5   5   5   5   5   5   4   4
20 ft wind gust.8   8   8   8   10  10  10  10  10  10  10  10
Eye lvl wnd dir.NE  NE  E   NE  E   NE  NE  NE  NE  NE  NE  NE
Eye lvl wnd spd.3   3   3   3   4   4   4   4   4   4   3   3
Eye lvl wnd gst.6   6   6   6   7   7   7   7   8   8   7   7
30 ft wnd dir...NE  NE  E   NE  E   NE  NE  NE  NE  NE  NE  NE
30 ft wnd spd...5   5   5   5   6   6   6   6   6   6   5   5
30 ft wnd gst...10  10  10  10  12  12  12  12  13  13  12  12
Mix hgt (kft)...0.5 0.5 1.2 1.5 1.7 2.0 2.3 2.6 3.0 3.4 3.5 3.3
Transp wind dir.S   NE  NE  E   E   E   E   E   E   NE  NE  NE
Transp wind spd.9   14  13  13  13  13  13  13  12  12  10  10
GFDI............0   0   0   0   0   0   0   0   0   0   0   0
SDspl kt-ft/10004   5   9   14  19  23  26  28  31  32  32  30

$$
Forecaster...Castillo
Requested by...Celia Neuzil
Type of request...PRESCRIBED
.TAG 2619442.0/OAX
.DELDT 08/11/26
.FormatterVersion 2.0.0
.EMAIL celia.neuzil@pottcounty-ia.gov