Suppression Forecast
Issued by NWS Grand Forks, ND

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FNUS73 KFGF 281317
FWSFGF

Spot Forecast for Lightning Lake...USFWS
National Weather Service Grand Forks ND
817 AM CDT Fri Apr 28 2017

Forecast is based on ignition time of 1300 CDT on April 28.
If conditions become unrepresentative...contact the National Weather
Service.

.DISCUSSION...

Expect mostly sunny skies today with high temperatures reaching
around 50 degrees this afternoon. North winds at about 10 to 15
miles per hour will allow for improved smoke dispersal later this
morning after inversion break. With drier northerly winds, minimum
humidity values will drop to around 35 percent, and occasionally
may drop to 30 percent. Otherwise...little to no precipitation is
forecast for today.


.TODAY...

Sky/weather.........Sunny.
Max temperature.....48-53.
Min humidity........37 percent.
Wind (20 ft)........North winds 6 to 11 mph.
Mixing height.......800-2700 ft AGL increasing to 3200-4000 ft AGL
                    late in the morning.
Mixing winds........North 12 to 16 mph.

TIME (CDT)      12P 1PM 2PM 3PM 4PM 5PM 6PM
Sky (%).........23  31  30  29  28  29  31
Weather cov.....
Weather type....
Tstm cov........
Temp............44  46  48  50  50  50  50
RH..............49  45  40  37  37  39  42
20 FT wind dir..N   N   N   N   N   N   N
20 FT wind spd..10  9   10  10  9   9   8
20 FT wind gust.15  15  15  15  15  15  15
Mix hgt (kft)...3.2 3.8 3.9 3.9 4.0 3.7 3.4
Mixing wind dir.N   N   N   N   N   N   N
Mixing wind spd.15  15  15  15  15  16  16

.TONIGHT...

Sky/weather.........Mostly clear.
Min temperature.....27-32.
Max humidity........85 percent.
Wind (20 ft)........North winds 5 to 9 mph early in the evening
                    becoming light and variable.
Mixing height.......2200-3200 ft AGL decreasing to 100-1200 ft AGL
                    early in the evening.
Mixing winds........North 9 to 17 mph becoming northeast 0 to 6 mph
                    in the late evening and overnight.

TIME (CDT)      7 PM   9 PM   11 PM  1 AM   3 AM   5 AM
Sky (%).........32     23     13     10     6      6
Weather cov.....
Weather type....NONE   NONE   NONE   NONE   NONE   NONE
Tstm cov........
Temp............48     42     37     34     33     30
RH..............51     65     75     85     85     85
20 ft wind......N 8    N 5    N 3    N 4    N 4    NE 4
20 ft wind gust.15     10     5      5      5      5
Mix hgt (ft)....3200   1200   200    200    100    100
Mixing wind.....N 17   N 9    N 6    N 6    E 2    E 1

.SATURDAY...

Sky/weather.........Sunny.
Max temperature.....53-58.
Min humidity........34 percent.
Wind (20 ft)........Light and variable winds becoming northeast 5
                    to 8 mph in the afternoon.
Mixing height.......100-1400 ft AGL increasing to 4400-4700 ft AGL.
Mixing winds........Southeast 2 to 7 mph shifting to the northeast
                    2 to 10 mph late in the morning, then
                    increasing to around 12 mph late.

TIME (CDT)      7 AM      10 AM     1 PM      4 PM
Sky (%).........10        14        15        20
Weather cov.....
Weather type....NONE      NONE      NONE      NONE
Tstm cov........
Temp............30        43        51        55
RH..............85        57        39        34
20 FT wind......E 3G5     E 4G5     N 5       NE 7G10
Mix hgt (ft)....100       1400      4400      4700
Mixing wind.....NE 2      SE 7      N 2       NE 10

$$
Forecaster...Hopkins
Requested by...Troy Boschee
Type of request...PRESCRIBED
.TAG 1707939.0/FGF



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