087  
FNUS73 KMPX 171143  
FWSMPX  
 
SPOT FORECAST FOR ORDWAY PRAIRIE...THE NATURE CONSERVANCY  
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN  
643 AM CDT TUE OCT 17 2017  
 
FORECAST IS BASED ON IGNITION TIME OF 0900 CDT ON OCTOBER 17.  
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER  
SERVICE.  
   
DISCUSSION
 
 
GOOD DRYING DAY WITH TEMPERATURES WARMING THROUGH THE LOWER 70S  
AND RELATIVE HUMIDITY LOWERING TO AROUND 30 PERCENT BY 3 PM. WINDS  
WILL BE LIGHT WEST TO SOUTHWEST 10 MPH OR LESS IN THE AFTERNOON.  
   
REST OF TODAY
 
 
SKY/WEATHER.........SUNNY.  
TEMPERATURE.........47 AT IGNITION...MAX 72.  
RH..................71 PERCENT AT IGNITION...MIN 31 PERCENT.  
WIND (20 FT)........WINDS WEST AT 3 MPH AT IGNITION...OTHERWISE  
LIGHT WINDS BECOMING SOUTHWEST 5 TO 10 MPH IN  
THE LATE MORNING AND AFTERNOON.  
MIXING HEIGHT.......900 FT AGL AT IGNITION...OTHERWISE 600-2200 FT  
AGL.  
TRANSPORT WINDS.....SOUTH 9 TO 17 MPH.  
MIXING WINDS........SOUTH 9 TO 17 MPH.  
SMOKE DISPERSAL.....POOR /7200 KNOT-FT/ AT IGNITION. MAX...GOOD  
/32900 KNOT-FT/.  
HAINES INDEX........5 OR MODERATE AT IGNITION...MAX 5.  
 
TIME (CDT) 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM 6PM  
TEMP............47 52 57 62 66 70 72 72 70 66  
RH..............71 61 53 46 40 35 31 31 35 42  
20 FT WIND DIR..W SW SW SW SW SW SW SW SW S  
20 FT WIND SPD..3 4 6 7 8 9 10 10 9 7  
20 FT WIND GUST.5 5 10 10 15 15 15 15 15 10  
MIX HGT (KFT)...0.9 1.2 1.5 1.9 2.2 1.9 1.5 1.2 0.9 0.6  
TRANSP WIND DIR.W W W SW SW SW SW SW S S  
TRANSP WIND SPD.9 12 14 16 17 17 17 17 17 16  
MIXING WIND DIR.W W W SW SW SW SW SW S S  
MIXING WIND SPD.9 12 14 16 17 17 17 17 17 16  
HAINES INDEX....5 5 5 5 5 5 5 5 5 5  
SDSPL KT-FT/10007 12 19 26 33 28 23 18 14 8  
   
TONIGHT
 
 
SKY/WEATHER.........CLEAR.  
TEMPERATURE.........MIN 47.  
RH..................MAX 86 PERCENT.  
WIND (20 FT)........SOUTH WINDS 5 TO 6 MPH.  
MIXING HEIGHT.......300 FT AGL.  
TRANSPORT WINDS.....SOUTH 15 TO 17 MPH.  
MIXING WINDS........SOUTH 15 TO 17 MPH.  
SMOKE DISPERSAL.....POOR (3300 KNOT-FT).  
 
TIME (CDT) 7 PM 9 PM 11 PM 1 AM 3 AM 5 AM  
TEMP............62 57 54 52 50 48  
RH..............50 59 66 71 74 80  
20 FT WIND......S 6 S 6 S 6 S 6 S 6 S 6  
20 FT WIND GUST.10 10 10 10 10 10  
MIX HGT (FT)....300 300 300 300 300 300  
TRANSPORT WIND..S 16 S 15 S 15 S 16 S 16 S 16  
MIXING WIND.....S 16 S 15 S 15 S 16 S 16 S 16  
HAINES INDEX....5 5 6 6 6 6  
SDSPL KT-FT/10004 3 3 4 4 4  
   
WEDNESDAY
 
 
SKY/WEATHER.........MOSTLY SUNNY.  
TEMPERATURE.........MAX 68.  
RH..................MIN 30 PERCENT.  
WIND (20 FT)........NORTHWEST WINDS 8 TO 13 MPH.  
MIXING HEIGHT.......300-1900 FT AGL INCREASING TO 2100-3600 FT AGL  
IN THE LATE MORNING AND EARLY AFTERNOON, THEN  
DECREASING TO 1100-1600 FT AGL LATE IN THE  
AFTERNOON.  
TRANSPORT WINDS.....WEST 18 TO 25 MPH.  
MIXING WINDS........WEST 18 TO 25 MPH.  
SMOKE DISPERSAL.....POOR TO GOOD (4000-52300 KNOT-FT) INCREASING TO  
GOOD TO EXCELLENT (30800-79400 KNOT-FT) LATE IN  
THE MORNING, THEN DECREASING TO FAIR (20300  
KNOT-FT) LATE IN THE AFTERNOON.  
HAINES INDEX........5 TO 6 OR MODERATE TO OR HIGH.  
 
TIME (CDT) 7 AM 9 AM 11 AM 1 PM 3 PM 5 PM  
TEMP............47 52 60 66 68 64  
RH..............86 77 55 40 32 34  
20 FT WIND......S 7 SW 8 W 10 NW 11 NW 13 NW 11  
20 FT WIND GUST.15 15 15 25 25 20  
MIX HGT (FT)....300 1400 2500 3600 2600 1600  
TRANSPORT WIND..S 18 SW 21 W 24 NW 25 NW 24 W 22  
MIXING WIND.....S 18 SW 21 W 24 NW 25 NW 24 W 22  
HAINES INDEX....6 6 5 5 5 5  
SDSPL KT-FT/10004 25 52 79 55 31  
 

 
FORECASTER...WFO MPX  
REQUESTED BY...MATT GRAEVE  
TYPE OF REQUEST...PRESCRIBED  
.TAG 1717357.0/MPX  
.EMAIL MGRAEVE@TNC.ORG  
 
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