Suppression Forecast
Issued by NWS Twin Cities, MN

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000
FNUS73 KMPX 271527
FWSMPX

Spot Forecast for Prairie Island Burn Piles...BIA Midest Region
National Weather Service Twin Cities/Chanhassen MN
1027 AM CDT Tue Jun 27 2017

Forecast is based on ignition time of 1200 CDT on June 27.
If conditions become unrepresentative...contact the National Weather
Service.

.DISCUSSION...

.REST OF TODAY...

Sky/weather.........Mostly sunny.
Temperature.........72 at ignition...Max 77.
RH..................42 percent at ignition...Min 35 percent.
Wind (20 ft)........Winds southwest at 6 mph at
                    ignition...otherwise South winds 5 to 10 mph.
Mixing height.......6300 ft AGL at ignition...otherwise 5500-6700
                    ft AGL.
Transport winds.....South 16 to 22 mph.
Mixing winds........South 16 to 22 mph.
Smoke dispersal.....Excellent /88400 knot-ft/ at ignition.
                    Max...excellent /114000 knot-ft/.
Haines Index........4 or low at ignition...max 4.

TIME (CDT)      12P 1PM 2PM 3PM 4PM 5PM 6PM
Temp............72  74  75  76  77  77  77
RH..............42  40  38  36  35  36  37
20 FT wind dir..SW  SW  S   S   S   S   S
20 FT wind spd..6   8   9   10  10  9   8
20 FT wind gust.10  10  15  20  20  20  15
Mix hgt (kft)...6.3 6.6 6.6 6.7 6.7 6.1 5.5
Transp wind dir.SW  SW  SW  S   S   S   S
Transp wind spd.16  17  18  18  20  21  22
Mixing wind dir.SW  SW  SW  S   S   S   S
Mixing wind spd.16  17  18  18  20  21  22
Haines index....4   4   4   4   4   4   4
SDspl kt-ft/100088  99  106 107 114 110 105

.TONIGHT...

Sky/weather.........Partly cloudy then becoming mostly cloudy.
                    Chance of showers and thunderstorms after
                    midnight. Rain showers and thunderstorms early
                    in the morning. Chance of precipitation 90
                    percent.
Temperature.........Min 61.
RH..................Max 93 percent.
Wind (20 ft)........South winds 5 to 9 mph. Gusty and erratic winds
                    expected near thunderstorms after midnight.
Mixing height.......3700-5000 ft AGL decreasing to 300-1200 ft AGL.
Transport winds.....South 15 to 23 mph.
Mixing winds........South 15 to 23 mph.
Smoke dispersal.....Excellent (69500 knot-ft) decreasing to poor to
                    good (3300-42100 knot-ft) early in the evening.

TIME (CDT)      7 PM   9 PM   11 PM  1 AM   3 AM   5 AM
Temp............75     69     64     61     61     61
RH..............41     55     65     72     75     81
20 ft wind......S 7    S 7    S 7    S 7    S 8    S 9
20 ft wind gust.15     10     10     10     15     15
Mix hgt (ft)....5000   2300   800    300    600    1000
Transport wind..S 23   S 21   S 17   SE 15  S 16   S 20
Mixing wind.....S 23   S 21   S 17   SE 15  S 16   S 20
Haines index....4      5      4      3      3      3
SDspl kt-ft/100099     42     12     3      9      17

.WEDNESDAY...

Sky/weather.........Mostly cloudy. Showers and thunderstorms.
                    Chance of precipitation 90 percent.
Temperature.........Max 76.
RH..................Min 74 percent.
Wind (20 ft)........West winds 5 to 10 mph. Gusty and erratic winds
                    expected near thunderstorms.
Mixing height.......1400-3000 ft AGL increasing to 3400-4500 ft AGL
                    in the afternoon.
Transport winds.....Southwest 22 to 31 mph shifting to the
                    northwest 18 to 21 mph early in the afternoon.
Mixing winds........Southwest 22 to 31 mph shifting to the
                    northwest 18 to 21 mph early in the afternoon.
Smoke dispersal.....Fair to excellent (27200-72700 knot-ft).
Haines Index........3 to 4 or very low to or low.

TIME (CDT)      7 AM   9 AM   11 AM  1 PM   3 PM   5 PM
Temp............61     64     67     71     74     76
RH..............90     90     90     84     79     76
20 ft wind......S 8    S 10   S 10   S 9    SW 9   W 8
20 ft wind gust.15     20     20     15     15     15
Mix hgt (ft)....1400   1900   2400   3000   3700   4300
Transport wind..S 23   S 29   S 29   SW 24  W 21   NW 20
Mixing wind.....S 23   S 29   S 29   SW 24  W 21   NW 20
Haines index....3      3      3      3      4      4
SDspl kt-ft/100027     47     61     64     67     73

$$
Forecaster...WFO MPX
Requested by...Marty Cassellius
Type of request...PRESCRIBED
.TAG 1711717.0/MPX
.EMAIL martin.cassellius@bia.gov



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