149  
FNUS73 KDMX 031245  
FWSDMX  
 
SPOT FORECAST FOR LAKE ICARIA EAST REFUGE UNIT...IOWA DNR  
NATIONAL WEATHER SERVICE DES MOINES IA  
645 AM CST FRI DEC 3 2021  
 
FORECAST IS BASED ON IGNITION TIME OF 0800 CST ON DECEMBER 03.  
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER  
SERVICE.  
 
AN INITIAL OBSERVATION AT IGNITION AND A MID BURN OBSERVATION ARE REQUIRED.  
 
PLEASE RELAY THEM TO THE NATIONAL WEATHER SERVICE FOR EACH PRESCRIBED BURN.  
   
DISCUSSION
 
 
TEMPERATURES WILL STILL BE ABOVE NORMAL TODAY AND LIGHT WINDS  
FROM THE NORTHEAST EARLY THIS MORNING WILL BECOME SLIGHTLY BREEZY  
FROM THE NORTH TOWARD MIDDAY AND PREVAIL THROUGH THE AFTERNOON.  
MINIMUM RELATIVE HUMIDITY WILL FALL INTO THE 40% THIS AFTERNOON.  
   
REST OF TODAY
 
 
SKY/WEATHER.........SUNNY (0-10 PERCENT).  
MAX TEMPERATURE.....AROUND 59.  
MIN HUMIDITY........45 PERCENT.  
WIND (20 FT)........NORTH WINDS 6 TO 13 MPH.  
MIXING HEIGHT.......2200 FT AGL.  
TRANSPORT WINDS.....NORTHEAST 6 TO 7 MPH SHIFTING TO THE NORTH 9 TO  
18 MPH LATE IN THE MORNING, THEN INCREASING TO  
12 TO 21 MPH LATE IN THE AFTERNOON.  
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
 
TIME (CST) 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM  
SKY (%).........7 9 6 3 0 1 3 4 8 11  
WEATHER COV.....  
WEATHER TYPE....  
TSTM COV........  
TEMP............37 40 46 50 54 55 56 57 55 51  
RH..............96 89 76 68 59 55 49 45 49 54  
20 FT WIND DIR..NE NE N N N N N N N N  
20 FT WIND SPD..6 6 8 10 12 13 13 13 12 10  
20 FT WIND GUST. 13 14 16 16 20 17 15  
MIX HGT (KFT)...0.4 0.5 0.6 1.0 1.2 1.5 2.0 2.2 1.4 0.9  
TRANSP WIND DIR.E E NE N N N N N N N  
TRANSP WIND SPD.7 6 6 9 15 18 21 20 16 12  
HAINES INDEX....5 5 5 5 5 5 5 5 5 5  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLEAR (20-30 PERCENT).  
MIN TEMPERATURE.....AROUND 30.  
MAX HUMIDITY........89 PERCENT.  
WIND (20 FT)........NORTHEAST WINDS 6 TO 14 MPH.  
MIXING HEIGHT.......600 FT AGL.  
TRANSPORT WINDS.....NORTHEAST 8 TO 14 MPH.  
HAINES INDEX........4 TO 5 OR LOW TO MODERATE POTENTIAL FOR LARGE  
PLUME DOMINATED FIRE GROWTH.  
 
TIME (CST) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM  
SKY (%).........15 28 29 20 18 18  
WEATHER COV.....  
WEATHER TYPE....NONE NONE NONE NONE NONE NONE  
TSTM COV........  
TEMP............47 43 39 36 35 33  
RH..............63 70 79 82 85 85  
20 FT WIND......N 10 N 13 N 13 NE 12 NE 9 NE 6  
20 FT WIND GUST.15 20 21 17 15 12  
MIX HGT (FT)....900 900 1100 1000 700 800  
TRANSPORT WIND..N 8 N 10 N 14 NE 13 NE 12 NE 12  
HAINES INDEX....5 5 5 4 4 4  
 

 
FORECASTER...ANSORGE  
REQUESTED BY...DRAY WALTER  
TYPE OF REQUEST...PRESCRIBED  
.TAG 2121915.0/DMX  
.DELDT 12/03/21  
.FORMATTERVERSION 2.0.0  
.EMAIL DRAY.WALTER@DNR.IOWA.GOV  
 
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