Spot Forecast
Issued by NWS Grand Forks, ND
Issued by NWS Grand Forks, ND
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801
FNUS73 KFGF 112209
FWSFGF
Spot Forecast for TNC 8&9, Rx Fire Learning Event...The Nature Conservancy
National Weather Service Grand Forks ND
509 PM CDT Sat May 11 2024
Forecast is based on ignition time of 0900 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.
.DISCUSSION...
Winds gradually pivot from NW at 5-6am to north by 9-10am with
speeds increasing from 10 mph to the mid teens for the afternoon.
Gusts to the low 20s possible though with increased mixing depth
could see slightly higher speeds in the mid 20s. RH drops below 30
percent by noon with minimum afternoon values near 20 percent from
2 pm to 7pm. Afternoon highs in in the upper 70s though should
they creep into the low 80s then expect slightly lower RH than
currently forecast.
.SUNDAY...
Sky/weather.........Sunny (0-10 percent).
Max temperature.....Around 77.
Min humidity........21 percent.
Wind (20 ft)........North winds 10 to 15 mph.
Mixing height.......7100 ft AGL.
Mixing winds........North 15 to 20 mph.
Smoke dispersal.....17400 knot-ft early in the morning increasing
to 107800 knot-ft in the afternoon.
TIME (CDT) 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........9 8 7 5 6 6 6 5 5
Weather cov.....
Weather type....
Tstm cov........
Temp............61 67 71 73 75 76 76 77 76
RH..............57 47 38 31 27 24 23 22 21
20 FT wind dir..N N N N N N N N N
20 FT wind spd..10 10 10 10 10 15 15 15 15
20 FT wind gust.14 14 15 16 18 19 20 20 19
Mix hgt (kft)...1.2 1.6 3.0 4.6 5.9 6.5 6.8 6.9 7.1
Mixing wind dir.N N N N N N N N N
Mixing wind spd.15 20 20 20 20 20 15 15 15
Vrate kt-ft/1K..17 26 49 75 94 102 103 104 108
.SUNDAY NIGHT...
Sky/weather.........Partly cloudy (20-30 percent).
Min temperature.....Around 44.
Max humidity........78 percent.
Wind (20 ft)........North winds 10 to 15 mph.
Mixing height.......0 ft AGL.
Mixing winds........North around 15 mph shifting to the northeast
in the late evening and overnight.
Smoke dispersal.....105900 knot-ft early in the evening decreasing
to 8500 knot-ft late in the night decreasing to
(200 knot-ft) late in the evening.
TIME (CDT) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM
Sky (%).........5 13 32 43 43 33
Weather cov.....
Weather type....NONE NONE NONE NONE NONE NONE
Tstm cov........
Temp............75 69 59 54 50 46
RH..............22 31 44 52 60 70
20 ft wind......N 15 N 15 N 10 NE 10 NE 10 NE 10
20 ft wind gust.19 19 18 18 16 14
Mix hgt (ft)....7000 4400 700 100 700 700
Mixing wind.....NW 15 N 15 NE 15 NE 15 NE 15 NE 15
Vrate kt-ft/1K..106 53 9 2 9 9
.MONDAY...
Sky/weather.........Sunny (10-20 percent).
Max temperature.....Around 68.
Min humidity........28 percent.
Wind (20 ft)........Northeast winds around 10 mph.
Mixing height.......5800 ft AGL.
Mixing winds........Northeast around 15 mph.
Smoke dispersal.....8000 knot-ft early in the morning increasing to
65800 knot-ft in the afternoon.
TIME (CDT) 6 AM 9 AM NOON 3 PM
Sky (%).........21 14 10 5
Weather cov.....
Weather type....NONE NONE NONE NONE
Tstm cov........
Temp............45 51 61 66
RH..............76 62 41 31
20 FT wind......N 10G14 NE 10G14 NE 10G15 NE 10G14
Mix hgt (ft)....600 1700 4200 5400
Mixing wind.....NE 15 NE 15 N 15 N 15
Vrate kt-ft/1K..8 22 54 64
$$
Forecaster...TT
Requested by...Eric Hoff
Type of request...PRESCRIBED
.TAG 2413709.1/FGF
.DELDT 05/12/24
.FormatterVersion 2.0.0
.EMAIL ehoff@tnc.org