248
FNUS73 KFGF 131158
FWSFGF

Spot Forecast for TNC2 & BRSP...The Nature Conservancy
National Weather Service Grand Forks ND
658 AM CDT Mon Oct 13 2025

Forecast is based on ignition time of 1000 CDT on October 13.
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...

West wind 10 to 15 mph with gusts 20 mph this morning and gusts
15 mph this afternoon.  Sunny sky with good mixing.



.REST OF TODAY...

Sky/weather.........Sunny (5-15 percent).
Max temperature.....Around 54.
Min humidity........48 percent.
Wind (20 ft)........Northwest winds 10 to 15 mph.
Mixing height.......3100 ft AGL.
Mixing winds........Northwest 15 to 20 mph decreasing to around 10
                    mph late in the afternoon.
Smoke dispersal.....25800 knot-ft early in the morning increasing
                    to 47300 knot-ft in the afternoon.

TIME (CDT)      10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........11  11  12  12  10  8   10  12
Weather cov.....
Weather type....
Tstm cov........
Temp............42  45  46  48  50  52  53  52
RH..............71  64  63  58  54  51  49  49
20 FT wind dir..W   NW  NW  NW  NW  NW  NW  NW
20 FT wind spd..10  10  10  10  10  10  10  10
20 FT wind gust.18  18  18  16  16  15  14  13
Mix hgt (kft)...2.5 2.6 2.7 2.8 3.0 3.1 3.0 2.9
Mixing wind dir.W   W   W   W   NW  NW  NW  NW
Mixing wind spd.20  20  15  15  15  15  10  10
Vrate kt-ft/1K..47  46  42  40  37  35  31  26

.TONIGHT...

Sky/weather.........Partly cloudy (25-35 percent) then becoming
                    mostly cloudy (65-75 percent).
Min temperature.....Around 38.
Max humidity........79 percent.
Wind (20 ft)........North winds around 5 mph shifting to the
                    northeast in the late evening and overnight.
Mixing height.......400 ft AGL.
Mixing winds........North 5 to 10 mph shifting to the northeast
                    overnight.
Smoke dispersal.....(2400 knot-ft).

TIME (CDT)      6 PM   8 PM   10 PM  MIDNGT 2 AM   4 AM
Sky (%).........14     26     46     73     72     81
Weather cov.....
Weather type....NONE   NONE   NONE   NONE   NONE   NONE
Tstm cov........
Temp............52     46     42     41     40     40
RH..............51     63     73     76     79     78
20 ft wind......NW 5   N 5    NE 5   NE 5   NE 5   NE 5
20 ft wind gust.11     6                    6      7
Mix hgt (ft)....1200   400    400    400    400    400
Mixing wind.....N 10   N 5    N 5    NE 10  NE 10  E 10
Vrate kt-ft/1K..9      3      3      3      4      4

.TUESDAY...

Sky/weather.........Mostly cloudy (80-90 percent). Slight chance of
                    rain showers late in the morning. Chance of
                    rain showers in the afternoon.
Max temperature.....Around 51.
Min humidity........56 percent.
Wind (20 ft)........East winds around 5 mph shifting to the
                    southeast in the afternoon.
Mixing height.......1900 ft AGL.
Mixing winds........East around 10 mph.
Smoke dispersal.....2600 knot-ft early in the morning increasing to
                    15300 knot-ft in the afternoon.

TIME (CDT)      6 AM      9 AM      NOON      3 PM
Sky (%).........86        81        88        88
Weather cov.....          S CHC     S CHC     CHANCE
Weather type....NONE      RNSHWR    RNSHWR    RNSHWR
Tstm cov........
Temp............39        42        48        51
RH..............79        73        62        56
20 FT wind......NE 5G7    E 5G9     E 5G12    SE 5G13
Mix hgt (ft)....400       800       1700      1700
Mixing wind.....E 10      E 10      E 10      E 10
Vrate kt-ft/1K..3         6         14        13

$$
Forecaster...DR
Requested by...Eric Hoff
Type of request...PRESCRIBED
.TAG 2523482.0/FGF
.DELDT 10/13/25
.FormatterVersion 2.0.0
.EMAIL ehoff@tnc.org