592  
FNUS73 KMPX 132148  
FWSMPX  
 
SPOT FORECAST FOR I-61-75...DEPT OF MILITARY AFFAIRS  
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN  
448 PM CDT MON AUG 13 2018  
 
FORECAST IS BASED ON IGNITION TIME OF 1000 CDT ON AUGUST 13.  
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER  
SERVICE.  
   
DISCUSSION
 
 
A WEAK FRONT WILL MOVE ACROSS THE AREA EARLY TUESDAY, AND BRING A SMALL  
CHANCE OF SHOWERS AND THUNDERSTORMS, ALONG WITH A SHIFT FROM SOUTHWESTERLY  
WINDS TO NORTHERLY. DRY AND COOLER WEATHER IS EXPECTED BEHIND THE FRONT  
FOR THE REST OF THE WEEK.  
   
REST OF TONIGHT
 
 
SKY/WEATHER.........SUNNY THEN BECOMING PARTLY CLOUDY. SLIGHT  
CHANCE OF SHOWERS AND THUNDERSTORMS LATE IN THE  
NIGHT. CHANCE OF PRECIPITATION 20 PERCENT.  
TEMPERATURE.........77 AT IGNITION...MIN 60.  
RH..................71 PERCENT AT IGNITION...MAX 100 PERCENT.  
WIND (20 FT)........WINDS SOUTH AT 6 MPH AT IGNITION...OTHERWISE  
WEST WINDS 7 TO 12 MPH SHIFTING TO THE NORTH 5  
TO 6 MPH AFTER MIDNIGHT. GUSTY AND ERRATIC  
WINDS EXPECTED NEAR THUNDERSTORMS LATE IN THE  
NIGHT.  
MIXING HEIGHT.......1500 FT AGL AT IGNITION...OTHERWISE 1500-2800  
FT AGL INCREASING TO 3900-5600 FT AGL LATE IN  
THE MORNING, THEN DECREASING TO 1600-3400 FT  
AGL EARLY IN THE EVENING DECREASING TO 300-1200  
FT AGL IN THE LATE EVENING AND OVERNIGHT.  
TRANSPORT WINDS.....SOUTHWEST 17 TO 25 MPH SHIFTING TO THE NORTH 12  
TO 16 MPH IN THE LATE EVENING AND OVERNIGHT.  
MIXING WINDS........SOUTHWEST 17 TO 25 MPH SHIFTING TO THE NORTH 12  
TO 16 MPH IN THE LATE EVENING AND OVERNIGHT.  
SMOKE DISPERSAL.....FAIR /29100 KNOT-FT/ AT IGNITION.  
MAX...EXCELLENT /75400 KNOT-FT/ INCREASING TO  
EXCELLENT (62900 KNOT-FT) IN THE AFTERNOON,  
THEN DECREASING TO POOR TO GOOD (2500-48200  
KNOT-FT).  
 
TIME (CDT) 10A 11A 12P 1PM 2PM 3PM 4PM 5PM 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM 6AM  
TEMP............77 82 86 87 90 92 90 88 86 84 80 76 72 70 68 67 65 64 62 61 60  
RH..............71 58 53 50 44 38 42 47 51 57 65 74 84 87 93 93 97 97 100 97 96  
20 FT WIND DIR..S SW SW SW S SW SW SW SW SW SW S S SW SW W W NW N N N  
20 FT WIND SPD..6 9 9 10 10 12 11 10 9 8 6 5 5 5 5 5 5 5 5 6 6  
20 FT WIND GUST. 11 11 13 13 17 14 13 11 12 10 6 6 6 6 6 6 6 6 7 7  
MIX HGT (KFT)...1.5 2.8 4.2 5.6 5.2 4.7 4.3 3.9 3.4 3.0 2.5 2.1 1.6 1.2 0.7 0.3 0.3 0.4 0.5 0.5 0.6  
TRANSP WIND DIR.SW SW SW SW SW SW SW SW SW SW SW SW SW SW SW SW W W NW N N  
TRANSP WIND SPD.23 22 21 23 23 24 24 25 24 24 22 20 17 15 13 12 12 13 14 15 16  
MIXING WIND DIR.SW SW SW SW SW SW SW SW SW SW SW SW SW SW SW SW W W NW N N  
MIXING WIND SPD.23 22 21 23 23 24 24 25 24 24 22 20 17 15 13 12 12 13 14 15 16  
HAINES INDEX....3 3 4 4 4 4 4 4 4 4 4 4 5 5 5 5 5 5 5 4 4  
SDSPL KT-FT/100029 54 75 112 103 99 90 85 72 63 48 35 24 15 8 3 3 4 5 7 8  
   
TUESDAY
 
 
SKY/WEATHER.........PARTLY SUNNY. CHANCE OF SHOWERS AND  
THUNDERSTORMS EARLY IN THE MORNING. CHANCE OF  
PRECIPITATION 40 PERCENT.  
TEMPERATURE.........MAX 75.  
RH..................MIN 54 PERCENT.  
WIND (20 FT)........NORTH WINDS 5 TO 8 MPH. GUSTY AND ERRATIC WINDS  
EXPECTED NEAR THUNDERSTORMS EARLY IN THE  
MORNING.  
MIXING HEIGHT.......700-2600 FT AGL INCREASING TO 1700-3000 FT AGL  
IN THE AFTERNOON.  
TRANSPORT WINDS.....NORTH 13 TO 17 MPH.  
MIXING WINDS........NORTH 13 TO 17 MPH.  
SMOKE DISPERSAL.....POOR TO GOOD (9800-32900 KNOT-FT).  
HAINES INDEX........3 TO 4 OR OR VERY LOW TO OR LOW.  
 
TIME (CDT) 7 AM 9 AM 11 AM 1 PM 3 PM 5 PM  
TEMP............60 62 66 71 74 75  
RH..............90 87 75 63 57 54  
20 FT WIND......N 6 N 7 N 7 N 7 N 7 N 7  
20 FT WIND GUST.7 10 10 10 10 10  
MIX HGT (FT)....700 1400 2200 3000 2500 2000  
TRANSPORT WIND..NE 17 N 16 N 15 N 13 N 13 N 13  
MIXING WIND.....NE 17 N 16 N 15 N 13 N 13 N 13  
HAINES INDEX....4 4 4 4 4 3  
SDSPL KT-FT/100010 20 29 33 27 22  
   
TUESDAY NIGHT
 
 
SKY/WEATHER.........MOSTLY CLEAR.  
TEMPERATURE.........MIN 53.  
RH..................MAX 96 PERCENT.  
WIND (20 FT)........NORTH WINDS 5 TO 6 MPH EARLY IN THE EVENING  
BECOMING LIGHT.  
MIXING HEIGHT.......300-1400 FT AGL.  
TRANSPORT WINDS.....NORTHEAST 8 TO 12 MPH.  
MIXING WINDS........NORTHEAST 8 TO 12 MPH.  
SMOKE DISPERSAL.....POOR TO FAIR (2000-14300 KNOT-FT).  
 
TIME (CDT) 7 PM 9 PM 11 PM 1 AM 3 AM 5 AM  
TEMP............72 66 61 58 56 53  
RH..............59 70 81 86 90 96  
20 FT WIND......N 6 N 4 N 4 N 4 N 3 N 3  
20 FT WIND GUST.  
MIX HGT (FT)....1400 1000 600 300 400 600  
TRANSPORT WIND..N 12 N 12 N 10 N 9 N 8 N 8  
MIXING WIND.....N 12 N 12 N 10 N 9 N 8 N 8  
HAINES INDEX....3 3 4 4 4 3  
SDSPL KT-FT/100014 10 6 2 3 4  
   
WEDNESDAY
 
 
SKY/WEATHER.........MOSTLY SUNNY.  
TEMPERATURE.........MAX 76.  
RH..................MIN 50 PERCENT.  
WIND (20 FT)........LIGHT WINDS.  
MIXING HEIGHT.......700-2000 FT AGL INCREASING TO 2700-4600 FT AGL  
IN THE LATE MORNING AND AFTERNOON.  
TRANSPORT WINDS.....NORTH 7 TO 9 MPH.  
MIXING WINDS........NORTH 7 TO 9 MPH.  
SMOKE DISPERSAL.....POOR TO GOOD (5000-37100 KNOT-FT).  
HAINES INDEX........3 TO 4 OR OR VERY LOW TO OR LOW.  
 
TIME (CDT) 7 AM 9 AM 11 AM 1 PM 3 PM 5 PM  
TEMP............54 62 69 73 75 76  
RH..............93 78 63 53 52 50  
20 FT WIND......N 3 NE 4 NE 4 N 4 N 3 N 3  
20 FT WIND GUST.  
MIX HGT (FT)....700 2000 3300 4600 4600 4600  
TRANSPORT WIND..NE 8 N 7 N 7 N 8 N 8 N 9  
MIXING WIND.....NE 8 N 7 N 7 N 8 N 8 N 9  
HAINES INDEX....3 3 3 3 3 4  
SDSPL KT-FT/10005 12 20 33 33 37  
 

 
FORECASTER...SCHMIT  
REQUESTED BY...JASON LINKERT  
TYPE OF REQUEST...PRESCRIBED  
.TAG 1814502.0/MPX  
.EMAIL JASON.D.LINKERT.NFG@MAIL.MIL  
 
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