541  
FNUS73 KIWX 201623  
FWSIWX  
 
SPOT FORECAST FOR COLDWATER WEST RX BURN...MIDNR  
NATIONAL WEATHER SERVICE NORTHERN INDIANA  
1223 PM EDT SAT APR 20 2024  
 
FORECAST IS BASED ON IGNITION TIME OF 1300 EDT ON APRIL 20.  
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER  
SERVICE.  
 
PLEASE CONTACT OUR OFFICE AT 1-574-834-1104 IF YOU HAVE QUESTIONS  
OR CONCERNS WITH THIS FORECAST.  
   
DISCUSSION
 
 
   
REST OF TODAY
 
 
SKY/WEATHER.........MOSTLY SUNNY.  
TEMPERATURE.........44 AT IGNITION...MAX 47.  
RH..................41 PERCENT AT IGNITION...MIN 39 PERCENT.  
WIND (20 FT)........WINDS WEST/NORTHWEST AT 15 MPH AT IGNITION...OTHERWISE  
WIND GUSTS UP TO 24 MPH.  
CHANCE OF PCPN......0 PERCENT.  
LAL.................1.  
MIXING HEIGHT.......6100 FT AGL AT IGNITION...OTHERWISE 6100 FT  
AGL.  
TRANSPORT WINDS.....WEST/NORTHWEST 23 TO 24 MPH.  
SMOKE DISPERSAL.....EXCELLENT /127500 KNOT-FT/ AT IGNITION.  
MAX...EXCELLENT /127500 KNOT-FT/.  
 
TIME (EDT) 1PM 2PM 3PM 4PM 5PM  
SKY (%).........51 50 41 36 30  
WEATHER COV.....  
WEATHER TYPE....  
TEMP............44 45 45 45 46  
RH..............41 40 39 41 39  
20 FT WIND DIR..WNW WNW WNW WNW WNW  
20 FT WIND SPD..15 15 15 15 15  
20 FT WIND GUST.23 23 22 22 22  
MIX HGT (KFT)...6.1 6.1 6.1 6.0 5.9  
TRANSP WIND DIR.290 290 290 290 290  
TRANSP WIND SPD.24 23 23 23 23  
CWR.............0 0 0 0 0  
LAL.............1 1 1 1 1  
VRATE KT-FT/1K..128 122 122 121 118  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY.  
TEMPERATURE.........MIN 32.  
RH..................MAX 79 PERCENT.  
WIND (20 FT)........WEST/NORTHWEST WINDS 10 TO 14 MPH IN THE EVENING BECOMING  
WEST 5 TO 7 MPH OVERNIGHT.  
CHANCE OF PCPN......0 PERCENT.  
LAL.................1.  
MIXING HEIGHT.......400 FT AGL.  
TRANSPORT WINDS.....WEST/NORTHWEST 12 TO 21 MPH BECOMING WEST 8 TO 12 MPH  
LATE IN THE EVENING.  
SMOKE DISPERSAL.....EXCELLENT (98300 KNOT-FT) EARLY IN THE EVENING  
DECREASING TO POOR (2900 KNOT-FT) LATE IN THE  
NIGHT.  
 
TIME (EDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM  
SKY (%).........27 27 25 28 26 30 34 39 34 37 39 37  
WEATHER COV.....  
WEATHER TYPE....  
TEMP............45 44 43 39 37 35 36 35 34 33 33 33  
RH..............42 43 44 52 58 63 62 67 70 71 74 74  
20 FT WIND DIR..W NW NW NW W W W W W W W W  
20 FT WIND SPD..15 13 12 9 7 6 5 5 6 6 6 6  
20 FT WIND GUST.22 20 18 13 12 9 8 8 9 9 9 10  
MIX HGT (KFT)...5.5 5.0 3.1 1.0 0.7 0.5 0.5 0.4 0.5 0.5 0.5 0.4  
TRANSP WIND DIR.290 290 290 290 300 300 290 290 280 280 270 270  
TRANSP WIND SPD.21 21 18 13 12 10 8 8 10 10 12 10  
CWR.............0 0 0 0 0 0 0 0 0 0 0 0  
LAL.............1 1 1 1 1 1 1 1 1 1 1 1  
VRATE KT-FT/1K..98 89 49 11 7 5 3 3 4 5 5 4  
   
SUNDAY
 
 
SKY/WEATHER.........SUNNY. WIDESPREAD FROST EARLY IN THE MORNING,  
THEN AREAS OF FROST EARLY IN THE MORNING.  
TEMPERATURE.........MAX 54.  
RH..................MIN 33 PERCENT.  
WIND (20 FT)........WEST WINDS 6 TO 15 MPH.  
CHANCE OF PCPN......0 PERCENT.  
LAL.................1.  
MIXING HEIGHT.......5500 FT AGL.  
TRANSPORT WINDS.....WEST 10 TO 18 MPH INCREASING TO 20 TO 23 MPH IN  
THE AFTERNOON.  
SMOKE DISPERSAL.....POOR (4600 KNOT-FT) EARLY IN THE MORNING  
INCREASING TO EXCELLENT (101700 KNOT-FT) IN THE  
AFTERNOON.  
 
TIME (EDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM  
SKY (%).........34 34 22 18 15 15 11 11 11 9 6 1  
WEATHER COV.....WID WID ARS  
WEATHER TYPE....FST FST FST  
TEMP............33 34 36 38 43 47 48 50 52 52 53 54  
RH..............79 74 73 66 54 46 43 40 38 36 35 33  
20 FT WIND DIR..W W W W W W W W W W W W  
20 FT WIND SPD..6 6 7 8 10 12 13 13 14 15 16 16  
20 FT WIND GUST.10 10 12 13 14 16 17 17 20 21 21 22  
MIX HGT (KFT)...0.5 0.5 0.7 1.7 3.5 4.8 5.1 5.3 5.5 5.3 5.1 4.9  
TRANSP WIND DIR.270 280 280 280 280 280 280 280 280 290 300 300  
TRANSP WIND SPD.12 10 12 14 16 18 20 21 21 22 23 23  
CWR.............0 0 0 0 0 0 0 0 0 0 0 0  
LAL.............1 1 1 1 1 1 1 1 1 1 1 1  
VRATE KT-FT/1K..5 5 7 20 49 77 86 93 98 101 102 99  
 

 
FORECASTER...ANDERSEN  
REQUESTED BY...NATE STEARNS  
TYPE OF REQUEST...PRESCRIBED  
.TAG 2411429.0/IWX  
.DELDT 04/20/24  
.FORMATTERVERSION 2.0.0  
 
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