554
FNUS73 KOAX 101301
FWSOAX

Spot Forecast for Ruffcorn Rx 2025...Nature Conservancy
National Weather Service Omaha/Valley NE
801 AM CDT Wed Sep 10 2025

Forecast is based on ignition time of 1200 CDT on September 10.
If conditions become unrepresentative, contact the National Weather
Service.

.DISCUSSION...

Expect a high near 83 today with minimum RH in the 50s and 60s.
Winds will be out of the east to southeast at 6-10 mph with a few
gusts around 15 mph. Expect fair to good smoke dispersal today
and good to very good on Thursday with the stronger winds and
deeper mixing.

Strongest Possible Wind Speeds on Day of Burn: 12 mph out of the
ESE

Lowest Possible Relative Humidity on Day of Burn: 49%

.REST OF TODAY...

Sky/weather.........Mostly sunny (25-35 percent).
Temperature.........77 at ignition...Max 83.
RH..................67 percent at ignition...Min 56 percent.
Eye level winds.....Light winds becoming east around 4 mph early in
                    the afternoon, then becoming light late in the
                    afternoon.
Surface winds (mph).Light winds becoming east around 6 mph early in
                    the afternoon, then becoming light late in the
                    afternoon.
Wind (20 ft)........Winds east at 3 mph at ignition...otherwise
                    Light winds becoming east around 5 mph early in
                    the afternoon, then becoming light late in the
                    afternoon.
Mixing height.......3000 ft AGL at ignition...otherwise 4200 ft
                    AGL.
Transport winds.....Southeast 6 to 7 mph.
Smoke dispersal.....Fair /13500 knot-ft/ at ignition. Max...fair
                    /25400 knot-ft/.
GFDI................0.

TIME (CDT)      12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........35  33  32  35  29  29
Weather cov.....
Weather type....
Tstm cov........
Temp............77  78  79  82  82  82
RH..............67  64  64  56  56  58
20 FT wind dir..E   E   E   E   E   E
20 FT wind spd..3   4   5   5   4   4
20 FT wind gust.6   7   6   7   7   6
Eye lvl wnd dir.E   E   E   E   E   E
Eye lvl wnd spd.2   3   4   4   3   3
Eye lvl wnd gst.4   5   5   5   5   5
Surface wnd dir.E   E   E   E   E   E
Surface wnd spd.4   5   6   6   5   5
Surface wnd gst.7   9   8   9   9   8
Mix hgt (kft)...3.0 3.6 3.8 3.9 4.2 4.1
Transp wind dir.SE  SE  SE  SE  SE  SE
Transp wind spd.6   6   6   6   7   7
GFDI............0   0   0   0   0   0
SDspl kt-ft/100014  18  23  25  25  19

.TONIGHT...

Sky/weather.........Partly cloudy (30-40 percent).
Temperature.........Min 62.
RH..................Max 100 percent.
Eye level winds.....Light winds becoming east around 4 mph early in
                    the morning.
GFDI................0.

TIME (CDT)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........29  29  30  31  31  29  27  26  26  28  39  37
Weather cov.....
Weather type....
Tstm cov........
Temp............82  79  76  71  68  67  66  65  65  63  63  63
RH..............58  64  71  84  90  93  93  93  93  100 100 97
Eye lvl wnd dir.E   E   E   E   E   E   E   E   E   E   E   E
Eye lvl wnd spd.3   2   2   2   2   2   3   3   3   3   3   4
Eye lvl wnd gst.4   4   4   4   4   4   4   5   5   5   5   5
GFDI............0   0   0   0   0   0   0   0   0   0   0   0

.THURSDAY...

Sky/weather.........Mostly sunny (30-40 percent).
Temperature.........Max 86.
RH..................Min 51 percent.
Eye level winds.....Southeast winds up to 7 mph. Gusts up to 21 mph
                    late in the afternoon.
GFDI................0.

TIME (CDT)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........48  51  49  39  23  27  34  40  39  38  38  37
Weather cov.....
Weather type....
Tstm cov........
Temp............62  62  64  68  72  76  79  82  84  85  85  85
RH..............100 97  97  87  79  69  62  56  53  51  51  51
Eye lvl wnd dir.E   SE  SE  SE  SE  SE  SE  SE  SE  SE  SE  SE
Eye lvl wnd spd.4   4   4   4   5   6   7   7   7   7   7   6
Eye lvl wnd gst.6   6   7   8   9   10  11  12  13  13  12  11
GFDI............0   0   0   0   0   0   0   0   0   0   0   0

.FORECAST DAYS 3 THROUGH 5...
.FRIDAY...
Partly cloudy. Lows in the upper 60s. Highs in the lower 90s.
South winds around 9 mph.
.SATURDAY...
Partly cloudy. Lows in the upper 60s. Highs in the lower 90s.
South winds around 9 mph.
.SUNDAY...
Mostly cloudy. Slight chance of showers and thunderstorms. Lows
in the upper 60s. Highs in the upper 80s. South winds around
6 mph.

$$
Forecaster...Nicolaisen
Requested by...Lane Vennink
Type of request...PRESCRIBED
.TAG 2521706.0/OAX
.DELDT 09/10/25
.FormatterVersion 2.0.0
.EMAIL bleaders@harrisoncountyparks.org,lvennink@harrisoncountyparks.org