Suppression Forecast
Issued by NWS Twin Cities, MN

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FNUS73 KMPX 201556
FWSMPX

Spot Forecast for Prairie Island Machine Pile Burning...Bureau of Indian Affairs
National Weather Service Twin Cities/Chanhassen MN
956 AM CST Tue Feb 20 2018

Forecast is based on ignition time of 0000 CST on February 21.
If conditions become unrepresentative...contact the National Weather
Service.

.DISCUSSION...
Skies will remain cloudy through the day, with gradually clearing tonight.

.REST OF TONIGHT...

Wind (20 ft)........Winds northwest at 8 mph at
                    ignition...otherwise West winds 5 to 8 mph.
Mixing height.......1900 ft AGL at ignition...otherwise 400-1900 ft
                    AGL.
Transport winds.....West 13 to 22 mph.
Mixing winds........West 13 to 22 mph.
Smoke dispersal.....Good /35900 knot-ft/ at ignition. Min...poor
                    /4200 knot-ft/.

TIME (CST)      MID 1AM 2AM 3AM 4AM 5AM
20 FT wind dir..NW  NW  W   W   W   W
20 FT wind spd..8   7   7   6   6   6
20 FT wind gust.15  15  15  10  10  10
Mix hgt (kft)...1.9 1.5 1.1 0.7 0.5 0.4
Transp wind dir.NW  NW  NW  W   W   W
Transp wind spd.22  20  17  16  14  13
Mixing wind dir.NW  NW  NW  W   W   W
Mixing wind spd.22  20  17  16  14  13
SDspl kt-ft/100036  26  17  10  7   4

.WEDNESDAY...

Wind (20 ft)........West winds around 5 mph until late afternoon
                    becoming light.
Mixing height.......300-2000 ft AGL increasing to 1200-3000 ft AGL
                    in the afternoon.
Transport winds.....Southwest 7 to 12 mph.
Mixing winds........Southwest 7 to 12 mph.
Smoke dispersal.....Poor to fair (2400-28900 knot-ft).

TIME (CST)      6 AM   8 AM   10 AM  NOON   2 PM   4 PM
20 ft wind......W 5    W 5    W 5    W 5    W 5    W 4
20 ft wind gust.                                   5
Mix hgt (ft)....300    300    1100   2900   3000   2100
Transport wind..W 12   W 12   W 12   W 12   W 9    W 8
Mixing wind.....W 12   W 12   W 12   W 12   W 9    W 8
SDspl kt-ft/10002      2      11     29     24     14

.WEDNESDAY NIGHT...

Wind (20 ft)........Light winds.
Mixing height.......300 ft AGL.
Transport winds.....East 5 to 8 mph.
Mixing winds........East 5 to 8 mph.
Smoke dispersal.....Poor (1000 knot-ft).

TIME (CST)      6 PM   8 PM   10 PM  MIDNGT 2 AM   4 AM
20 ft wind......SW 3   S 2    S 2    SE 3   E 3    E 3
20 ft wind gust.5                    5      5      5
Mix hgt (ft)....300    300    300    300    300    300
Transport wind..SW 7   S 5    S 5    SE 7   E 7    E 7
Mixing wind.....SW 7   S 5    S 5    SE 7   E 7    E 7
SDspl kt-ft/10002      1      1      2      1      2

.THURSDAY...

Wind (20 ft)........Light winds becoming east 5 to 6 mph.
Mixing height.......300 ft AGL early in the morning.
Transport winds.....East around 9 mph early in the morning.
Mixing winds........East around 9 mph early in the morning.
Smoke dispersal.....Poor (1900 knot-ft) early in the morning.

TIME (CST)      6 AM   8 AM   10 AM  NOON   2 PM   4 PM
20 ft wind......E 4    E 5    E 6    E 6    E 6    E 6
20 ft wind gust.5
Mix hgt (ft)....300    M      M      M      M      M
Transport wind..E 9    M      M      M      M      M
Mixing wind.....E 9    M      M      M      M      M
SDspl kt-ft/10002      M      M      M      M      M

$$
Forecaster...SCHMIT
Requested by...Martin Cassellius
Type of request...PRESCRIBED
.TAG 1802206.0/MPX
.EMAIL martin.cassellius@bia.gov



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