354
FNUS73 KFGF 101344
FWSFGF

Spot Forecast for Wallace NPB Rx...MN DNR
National Weather Service Grand Forks ND
844 AM CDT Thu Sep 10 2026

Forecast is based on ignition time of 0800 CDT on September 10.
If conditions become unrepresentative, contact the National Weather
Service.

Please call the NWS in Grand Forks at 701-795-5127 for additional
information and monitor our website (www.weather.gov/fgf) or NOAA
All-Hazards Radio for the latest updates.

.DISCUSSION...

Sunny today at the burn site, with winds gusting up to 20 mph by
early afternoon, shifting from the south to the southwest. The
biggest forecast uncertainty is RH values. They may drop a bit
lower then forecasted during the middle of the afternoon.

A cold front passing through Friday afternoon and evening will
shift winds to the northwest. Thunderstorms are also forecasted to
develop along the cold front. The question for the burn site will
be if the front is slower/further west, which would result in
storms impacting the burn site. If the front is faster, storms
will develop further east.

.REST OF TODAY...

Sky/weather.........Sunny (0-10 percent).
Max temperature.....Around 81.
Min humidity........39 percent.
Wind (20 ft)........South winds 5 to 10 mph with gusts to around 19
                    mph shifting to the southwest around 15 mph
                    late in the afternoon.
Mixing height.......7200 ft AGL.
Mixing winds........Southwest 10 to 15 mph increasing to around 20
                    mph late in the afternoon.
Smoke dispersal.....2500 knot-ft early in the morning increasing to
                    99500 knot-ft in the afternoon increasing to
                    (123700 knot-ft) late in the afternoon.

TIME (CDT)      8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........6   2   2   2   1   2   2   4   4   5
Weather cov.....
Weather type....
Tstm cov........
Temp............57  62  66  70  74  77  79  79  81  79
RH..............86  75  65  55  49  47  42  42  39  42
20 FT wind dir..S   S   S   SW  SW  SW  SW  SW  S   S
20 FT wind spd..5   5   5   10  10  10  10  15  15  15
20 FT wind gust.7   11  13  14  16  18  19  21  22  22
Mix hgt (kft)...0.4 0.6 1.1 2.1 4.0 5.4 6.2 6.9 7.2 6.8
Mixing wind dir.S   SW  SW  SW  SW  SW  SW  SW  SW  SW
Mixing wind spd.10  10  10  15  15  15  20  20  20  20
Vrate kt-ft/1K..3   5   10  24  48  75  100 124 130 130

.TONIGHT...

Sky/weather.........Mostly clear (10-20 percent).
Min temperature.....Around 64.
Max humidity........78 percent.
Wind (20 ft)........South winds 10 to 15 mph with gusts to around
                    23 mph.
Mixing height.......500 ft AGL.
Mixing winds........South 15 to 20 mph.
Smoke dispersal.....50100 knot-ft early in the evening decreasing
                    to 6100 knot-ft late in the night.

TIME (CDT)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........5   4   3   5   7   5   11  6   13  20  27  29
Weather cov.....
Weather type....
Tstm cov........
Temp............79  76  73  71  70  69  68  68  68  67  66  66
RH..............44  50  55  59  61  63  65  65  68  68  70  70
20 FT wind dir..S   S   S   S   S   S   S   S   S   S   S   S
20 FT wind spd..10  10  10  15  15  15  15  15  15  15  15  15
20 FT wind gust.20  18  19  22  23  23  23  23  22  23  23  23
Mix hgt (kft)...2.9 1.2 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5
Mixing wind dir.S   S   S   S   S   S   S   S   S   S   S   S
Mixing wind spd.20  15  15  15  20  20  20  20  20  20  15  15
Vrate kt-ft/1K..50  16  6   7   8   7   8   8   8   8   7   7

.FRIDAY...

Sky/weather.........Mostly sunny (25-35 percent) then becoming
                    mostly cloudy (70-80 percent) then becoming
                    partly sunny (60-70 percent). Slight chance of
                    showers late in the afternoon. Chance of
                    showers and thunderstorms late in the
                    afternoon.
Max temperature.....Around 83.
Min humidity........56 percent.
Wind (20 ft)........South winds around 15 mph with gusts to around
                    23 mph. Gusty and erratic winds expected near
                    thunderstorms late in the afternoon.
Mixing height.......4800 ft AGL.
Mixing winds........South 15 to 20 mph shifting to the southwest
                    around 25 mph late in the afternoon.
Smoke dispersal.....7000 knot-ft early in the morning increasing to
                    105300 knot-ft in the afternoon.

TIME (CDT)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........29  72  87  67  47  49  67  66  55  79  83  58
Weather cov.....                                    SCH CHC CHC
Weather type....                                    RW  RW  RW
Tstm cov........                                        CHC CHC
Temp............66  64  66  68  72  74  77  79  81  81  82  80
RH..............70  78  75  73  66  64  60  58  56  56  56  60
20 FT wind dir..S   S   S   S   S   S   S   S   S   S   S   S
20 FT wind spd..15  15  15  15  15  15  15  15  15  15  15  15
20 FT wind gust.23  23  23  23  23  23  23  23  23  23  23  23
Mix hgt (kft)...0.5 0.5 0.7 1.4 1.7 2.3 2.9 3.4 4.0 4.6 4.8 3.7
Mixing wind dir.S   S   S   S   S   S   S   S   S   SW  S   SW
Mixing wind spd.15  15  20  20  20  20  20  20  20  25  25  25
Vrate kt-ft/1K..7   7   11  25  31  42  52  64  76  92  105 78

$$
Forecaster...BR
Requested by...Dan Herrmann
Type of request...PRESCRIBED
.TAG 2621567.0/FGF
.DELDT 09/10/26
.FormatterVersion 2.0.0
.EMAIL daniel.herrmann@state.mn.us