321
FNUS73 KFGF 241402
FWSFGF

Spot Forecast for A Dunes SE...The Nature Conservancy
National Weather Service Grand Forks ND
902 AM CDT Sat May 24 2025

Forecast is based on ignition time of 1000 CDT on May 24.
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...

Forecast looks reasonable per info below, if anything expected RH
to start dropping an hour early and hit a minimum closer to 25
percent otherwise light winds with gusts topping out near 10 mph
will make for a good burning day. Low 15 percent chance for an
afternoon but best chances look to remain south towards Fargo
with the burn area remaining dry.

.REST OF TODAY...

Sky/weather.........Sunny (20-30 percent) then becoming mostly
                    sunny (45-55 percent).
Max temperature.....Around 67.
Min humidity........28 percent.
Wind (20 ft)........Light winds becoming north around 5 mph early
                    in the afternoon, then shifting to the
                    northwest late in the afternoon.
Mixing height.......9800 ft AGL.
Mixing winds........Northeast around 5 mph shifting to the north
                    late in the afternoon.
Smoke dispersal.....17300 knot-ft early in the morning increasing
                    to 48800 knot-ft in the afternoon.

TIME (CDT)      10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........4   7   20  41  46  54  52  46
Weather cov.....
Weather type....
Tstm cov........
Temp............58  61  63  64  65  64  65  66
RH..............53  44  38  33  29  30  29  28
20 FT wind dir..SE  E   NE  N   N   NW  NW  N
20 FT wind spd..0   0   5   5   5   5   5   5
20 FT wind gust.3   5   7   11  9   11  11  9
Mix hgt (kft)...3.5 7.2 9.1 9.5 9.8 9.1 9.1 8.2
Mixing wind dir.E   NE  NE  NE  NE  NE  N   N
Mixing wind spd.5   5   5   5   5   5   5   5
Vrate kt-ft/1K..17  36  45  47  49  37  36  41

.TONIGHT...

Sky/weather.........Mostly clear (20-30 percent).
Min temperature.....Around 43.
Max humidity........76 percent.
Wind (20 ft)........North winds around 5 mph shifting to the south
                    early in the evening, then becoming south
                    around 5 mph after 3 am.
Mixing height.......300 ft AGL.
Mixing winds........North around 5 mph shifting to the southwest
                    early in the evening.
Smoke dispersal.....53600 knot-ft early in the evening decreasing
                    to 1600 knot-ft late in the night.

TIME (CDT)      6 PM   8 PM   10 PM  MIDNGT 2 AM   4 AM
Sky (%).........40     32     23     8      8      6
Weather cov.....
Weather type....NONE   NONE   NONE   NONE   NONE   NONE
Tstm cov........
Temp............65     61     54     50     47     45
RH..............29     38     48     58     65     70
20 ft wind......N 5    SE 5   S 5    S 5    S 5    S 5
20 ft wind gust.9      7      6             6      6
Mix hgt (ft)....8900   800    600    300    300    300
Mixing wind.....N 5    S 5    S 5    SW 5   SW 10  SW 5
Vrate kt-ft/1K..54     3      4      2      2      2

.SUNDAY...

Sky/weather.........Sunny (10-20 percent).
Max temperature.....Around 70.
Min humidity........24 percent.
Wind (20 ft)........South winds around 5 mph shifting to the west
                    early in the morning.
Mixing height.......8700 ft AGL.
Mixing winds........West around 5 mph shifting to the northwest in
                    the late morning and afternoon.
Smoke dispersal.....1600 knot-ft early in the morning increasing to
                    52300 knot-ft in the afternoon.

TIME (CDT)      6 AM      9 AM      NOON      3 PM
Sky (%).........5         5         7         29
Weather cov.....
Weather type....NONE      NONE      NONE      NONE
Tstm cov........
Temp............45        56        66        68
RH..............73        55        30        26
20 FT wind......S 5       W 5       W 5G8     W 5G9
Mix hgt (ft)....300       1400      7300      8700
Mixing wind.....W 5       W 5       NW 5      NW 5
Vrate kt-ft/1K..2         9         40        47

$$
Forecaster...TT
Requested by...Eric Hoff
Type of request...PRESCRIBED
.TAG 2514559.1/FGF
.DELDT 05/24/25
.FormatterVersion 2.0.0
.EMAIL ehoff@tnc.org