431
FNUS73 KFGF 041035
FWSFGF

Spot Forecast for Grand Forks RX...USFWS
National Weather Service Grand Forks ND
535 AM CDT Sat Oct 4 2025

Forecast is based on ignition time of 0600 CDT on October 04.
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...

Southwest winds will become northerly as a cold front pushes into
the area late in the morning. Wind shift will be right around
ignition time. Speeds will pick up to around 15 mph with gusts to
25 mph by afternoon. Showers and isolated thunderstorms will
develop near the front during the afternoon, and any stronger
cells could produce random gusts. Clouds and the cold front will
bring cooler temperatures than yesterday in the 70s, with
afternoon RH values in the 55 to 60 percent range. Even cooler,
breezy, with scattered showers on Sunday.

.TODAY...

Sky/weather.........Partly sunny (55-65 percent). Isolated showers
                    early in the afternoon. Isolated showers and
                    thunderstorms late in the afternoon.
Max temperature.....Around 74.
Min humidity........57 percent.
Wind (20 ft)........Southwest winds 5 to 10 mph shifting to the
                    north 10 to 15 mph in the late morning and
                    afternoon. Gusty and erratic winds expected
                    near thunderstorms late in the afternoon.
Mixing height.......2800 ft AGL.
Mixing winds........Southwest around 15 mph shifting to the
                    northwest early in the morning, then shifting
                    to the north 15 to 20 mph in the late morning
                    and afternoon.
Smoke dispersal.....5200 knot-ft early in the morning increasing to
                    47300 knot-ft in the afternoon.

TIME (CDT)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........55  62  66  58  56  52  61  64  62  55  61  68
Weather cov.....                            ISO ISO     ISO ISO
Weather type....                            RW  RW      RW  RW
Tstm cov........                                        ISO ISO
Temp............67  66  63  65  66  68  70  69  71  71  70  72
RH..............70  73  81  81  75  70  66  68  61  61  63  57
20 FT wind dir..SW  SW  W   N   N   N   N   N   N   N   N   N
20 FT wind spd..10  5   5   10  10  10  10  10  10  15  15  15
20 FT wind gust.13  9   12  16  18  18  19  19  20  21  22  22
Mix hgt (kft)...0.5 0.8 0.5 1.1 1.4 1.9 2.1 2.5 2.7 2.8 2.8 2.6
Mixing wind dir.SW  SW  W   N   N   N   N   N   N   N   N   N
Mixing wind spd.15  15  10  15  15  15  15  15  15  15  20  20
Vrate kt-ft/1K..7   8   5   13  17  24  29  32  35  41  47  44

.TONIGHT...

Sky/weather.........Mostly cloudy (80-90 percent). Rain showers and
                    scattered thunderstorms.
Min temperature.....Around 50.
Max humidity........100 percent.
Wind (20 ft)........North winds around 15 mph with gusts to around
                    25 mph. Gusty and erratic winds expected near
                    thunderstorms in the evening.
Mixing height.......500 ft AGL.
Mixing winds........North 20 to 25 mph.
Smoke dispersal.....44000 knot-ft early in the evening decreasing
                    to 11100 knot-ft late in the night.

TIME (CDT)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........77  85  89  91  87  90  89  92  90  94  93  93
Weather cov.....SCT NUM NUM NUM DEF DEF NUM NUM NUM DEF NUM DEF
Weather type....RW  RW  RW  RW  RW  RW  RW  RW  RW  RW  RW  RW
Tstm cov........SCT SCT SCT SCT SCT SCT SCT
Temp............69  67  65  60  58  57  56  56  55  55  55  53
RH..............63  68  75  90  93  96  96  93  96  96  96  100
20 FT wind dir..N   N   N   N   N   N   N   N   N   N   N   N
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  25  23  23  23  23  25  25
Mix hgt (kft)...2.4 2.0 1.1 1.4 1.3 1.3 0.5 1.3 1.3 1.4 1.3 1.3
Mixing wind dir.N   N   N   N   N   N   N   N   NE  NE  N   NE
Mixing wind spd.20  20  20  20  20  25  25  25  25  20  20  20
Vrate kt-ft/1K..44  35  18  26  25  27  11  28  27  25  25  25

.SUNDAY...

Sky/weather.........Mostly cloudy (80-90 percent). Rain showers in
                    the morning, then scattered rain showers in the
                    afternoon.
Max temperature.....Around 60.
Min humidity........69 percent.
Wind (20 ft)........Breezy. North winds 15 to 20 mph with gusts to
                    around 33 mph shifting to the northwest with
                    gusts to around 28 mph late in the afternoon.
Mixing height.......3400 ft AGL.
Mixing winds........North 20 to 25 mph increasing to 30 to 35 mph
                    late in the morning, then increasing to
                    northwest 40 to 45 mph early in the afternoon
                    becoming north 30 to 35 mph late in the
                    afternoon.
Smoke dispersal.....19300 knot-ft early in the morning increasing
                    to 109700 knot-ft in the afternoon.

TIME (CDT)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........96  97  98  94  94  93  94  88  81  76  73  72
Weather cov.....DEF DEF DEF DEF DEF DEF DEF SCT SCT SCT SCT SCT
Weather type....RW  RW  RW  RW  RW  RW  RW  RW  RW  RW  RW  RW
Tstm cov........
Temp............54  54  51  53  55  56  55  58  57  57  56  55
RH..............96  96  100 100 93  86  83  72  72  69  69  69
20 FT wind dir..N   N   N   NW  NW  NW  NW  NW  NW  NW  NW  NW
20 FT wind spd..15  15  15  20  20  20  25  25  20  20  20  15
20 FT wind gust.25  25  28  30  32  33  34  35  34  33  30  28
Mix hgt (kft)...1.4 1.3 1.3 1.4 1.7 2.3 2.6 3.0 3.1 3.3 3.4 3.2
Mixing wind dir.N   NE  N   N   NW  N   N   NW  NW  N   N   N
Mixing wind spd.25  25  20  20  25  30  35  45  40  35  30  30
Vrate kt-ft/1K..27  27  19  22  35  58  82  110 106 101 96  77

$$
Forecaster...JR
Requested by...Michael Miller
Type of request...PRESCRIBED
.TAG 2522930.1/FGF
.DELDT 10/04/25
.FormatterVersion 2.0.0
.EMAIL michael_a_miller@fws.gov