Spot Forecast
Issued by NWS Grand Forks, ND
Issued by NWS Grand Forks, ND
775
FNUS73 KFGF 121950
FWSFGF
Spot Forecast for Waubun Triangle Rx-Burn...Minnesota Department of Natural Resources
National Weather Service Grand Forks ND
250 PM CDT Tue May 12 2026
Forecast is based on ignition time of 1500 CDT on May 12.
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.
...WIND ADVISORY IN EFFECT UNTIL 7 PM CDT THIS EVENING...
.DISCUSSION...
RH values will dip to the 30 to 35 percent range for a few hours
this afternoon before climbing up into the 40s this evening. Winds
will continue out of the northwest at 25 to 30 mph with gusts up
to 35 mph late this afternoon, then slowly drop off into the 10 to
20 mph and become due northerly this evening. Some patchy blowing
dust is possible before winds start dropping off. Winds will
become light and variable later tonight into tomorrow morning.
Even with less wind on Wednesday, temperatures will climb into the
low 70s and afternoon RH values will drop into the 25 to 30
percent range. More wind expected on Thursday, with RH values
around 30 to 40 percent.
.TONIGHT...
Sky/weather.........Clear (0-10 percent). Patchy blowing dust early
in the evening.
Min temperature.....Around 39.
Max humidity........85 percent.
Wind (20 ft)........Breezy. North winds 20 to 25 mph with gusts to
around 34 mph decreasing to 10 to 15 mph with
gusts to around 25 mph early in the evening,
then decreasing to around 5 mph in the late
evening and overnight shifting to the northwest
overnight becoming light.
Mixing height.......300 ft AGL.
Mixing winds........Northwest 30 to 35 mph becoming north 5 to 10
mph.
Smoke dispersal.....(138300 knot-ft) decreasing to 31500 knot-ft
early in the evening decreasing to 2100 knot-ft
late in the night early in the evening.
TIME (CDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........6 3 4 4 5 6 3 3 4 5 6 6
Weather cov.....PTY
Weather type....BDT
Tstm cov........
Temp............63 61 60 55 52 49 46 45 43 42 41 41
RH..............40 42 48 53 56 61 66 73 75 76 75 80
20 FT wind dir..N N N N N N N N NW NW W W
20 FT wind spd..25 20 15 10 5 5 5 5 5 5 0 0
20 FT wind gust.34 30 25 19 14 12 9 6 5 3
Mix hgt (kft)...5.9 4.9 1.7 0.7 0.5 0.5 0.4 0.4 0.4 0.4 0.3 0.4
Mixing wind dir.NW N N N N N N N N NW NW NW
Mixing wind spd.35 30 20 15 10 10 10 10 10 5 5 5
Vrate kt-ft/1K..182 138 32 9 5 4 3 3 3 2 2 2
.WEDNESDAY...
Sky/weather.........Sunny (0-10 percent).
Max temperature.....Around 71.
Min humidity........28 percent.
Wind (20 ft)........Light winds becoming north around 5 mph late in
the morning.
Mixing height.......7600 ft AGL.
Mixing winds........Northwest 5 to 10 mph shifting to the north 10
to 15 mph in the afternoon.
Smoke dispersal.....1500 knot-ft early in the morning increasing to
83100 knot-ft in the afternoon.
TIME (CDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........5 9 8 3 2 3 4 3 3 7 6 3
Weather cov.....
Weather type....
Tstm cov........
Temp............40 42 46 51 59 62 64 66 67 69 70 70
RH..............85 82 76 63 47 43 40 37 36 32 30 30
20 FT wind dir..W SW W NW N N N N N N N N
20 FT wind spd..0 0 0 0 0 5 5 5 5 5 5 5
20 FT wind gust.3 3 5 5 5 6 8 8 9 9 8 7
Mix hgt (kft)...0.3 0.3 0.5 1.1 2.1 3.4 5.1 6.3 7.1 7.6 7.6 7.5
Mixing wind dir.NW W N N N N N N N N N N
Mixing wind spd.5 5 5 10 10 10 15 15 15 15 10 10
Vrate kt-ft/1K..2 2 3 9 19 34 61 75 78 83 76 68
.WEDNESDAY NIGHT...
Sky/weather.........Mostly clear (10-20 percent).
Min temperature.....Around 49.
Max humidity........56 percent.
Wind (20 ft)........Northeast winds around 5 mph shifting to the
east early in the evening, then shifting to the
southeast 10 to 15 mph with gusts to around 25
mph late in the evening increasing to around 20
mph with gusts to around 32 mph after 3 am.
Mixing height.......500 ft AGL.
Mixing winds........North around 10 mph shifting to the east early
in the evening, then shifting to the southeast
15 to 20 mph overnight increasing to around 25
mph early in the morning.
Smoke dispersal.....52900 knot-ft early in the evening decreasing
to 5900 knot-ft late in the night.
TIME (CDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........3 4 6 7 8 19 17 26 21 23 28 25
Weather cov.....
Weather type....
Tstm cov........
Temp............71 69 65 59 56 54 54 53 53 51 51 51
RH..............28 31 37 44 47 48 48 50 50 54 54 54
20 FT wind dir..N NE E E E SE SE SE SE SE SE SE
20 FT wind spd..5 5 5 10 10 10 15 15 15 20 20 20
20 FT wind gust.7 7 9 13 15 19 20 23 25 28 29 32
Mix hgt (kft)...6.6 5.5 0.9 0.7 0.5 0.5 0.5 0.6 0.6 0.7 0.7 0.8
Mixing wind dir.N N E E E SE SE SE SE SE SE SE
Mixing wind spd.10 10 10 10 15 15 15 20 20 20 20 25
Vrate kt-ft/1K..53 39 8 7 6 7 8 9 10 12 14 16
.THURSDAY...
Sky/weather.........Mostly sunny (35-45 percent) then becoming
partly sunny (65-75 percent). Slight chance of
rain showers in the morning. Chance of rain
showers in the afternoon. Slight chance of
thunderstorms late in the afternoon.
Max temperature.....Around 74.
Min humidity........38 percent.
Wind (20 ft)........Windy. South winds 25 to 30 mph with gusts to
around 39 mph. Gusty and erratic winds expected
near thunderstorms late in the afternoon.
Mixing height.......4000 ft AGL.
Mixing winds........Southeast 25 to 30 mph increasing to south 35
to 40 mph in the late morning and early
afternoon, then decreasing to around 30 mph
late in the afternoon.
Smoke dispersal.....18000 knot-ft early in the morning increasing
to 103700 knot-ft in the afternoon increasing
to 58000 knot-ft early in the morning
increasing to 133500 knot-ft in the afternoon
in the afternoon.
TIME (CDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........32 57 22 33 44 53 62 71 70 69 68 65
Weather cov..... SCH SCH SCH SCH SCH SCH CHC CHC CHC CHC CHC
Weather type.... RW RW RW RW RW RW RW RW RW RW RW
Tstm cov........ SCH SCH
Temp............50 52 55 59 63 65 67 68 70 72 72 73
RH..............56 54 49 44 39 38 39 39 38 38 39 40
20 FT wind dir..SE SE SE SE SE S S S S S S S
20 FT wind spd..25 25 25 30 30 30 30 30 30 30 25 25
20 FT wind gust.33 34 36 37 39 39 39 39 39 37 36 35
Mix hgt (kft)...0.8 1.0 1.8 2.3 2.6 3.2 3.7 4.0 3.9 3.4 2.8 2.4
Mixing wind dir.SE SE SE S S S S S S S S S
Mixing wind spd.25 25 30 30 35 40 40 40 35 35 30 30
Vrate kt-ft/1K..18 23 45 63 79 104 125 134 121 97 73 58
$$
Forecaster...JR
Requested by...Greg Henderson
Type of request...PRESCRIBED
.TAG 2613480.0/FGF
.DELDT 05/12/26
.FormatterVersion 2.0.0
.EMAIL greg.henderson@state.mn.us