918  
FNUS73 KARX 141539  
FWSARX  
 
SPOT FORECAST FOR BIA HO-CHUNK ROCKLAND RXB...BUREAU OF INDIAN AFFAIRS  
NATIONAL WEATHER SERVICE LA CROSSE WI  
1039 AM CDT WED APR 14 2021  
 
FORECAST IS BASED ON IGNITION TIME OF 1100 CDT ON APRIL 14.  
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER  
SERVICE.  
 
PLEASE CONTACT OUR OFFICE AT (608) 784-8292 IF YOU HAVE QUESTIONS  
OR CONCERNS WITH THIS FORECAST.  
   
DISCUSSION
 
A SLOW-MOVING AREA OF LOW PRESSURE WILL DRIFT INTO  
THE UPPER PENINSULA OF MICHIGAN TODAY. IT WILL CONTINUE TO PRODUCE  
SOME SCATTERED RAIN AND SNOW SHOWERS. PRECIPITATION COVERAGE WILL  
LIKELY BE AT ITS GREATEST THIS AFTERNOON, BUT AMOUNTS WILL BE VERY LIGHT,  
IF EVEN MEASURABLE. HIGHS WILL BE IN THE MID-40S TODAY WITH A NORTHWEST  
OF 10 TO 15 MPH. AFTERNOON RELATIVE HUMIDITIES WILL FALL TO AROUND  
50 PERCENT. SMOKE DISPERSION WILL BE GOOD TO EXCELLENT.  
 
THE LOW PULLS OUT OF THE REGION ON THURSDAY, SO DRY WEATHER  
IS EXPECTED WITH HIGH TEMPERATURES IN THE 50S. THE WINDS WILL BE  
OUT OF THE NORTHWEST AT 10 TO 15 MPH. AFTERNOON RELATIVE HUMIDITY  
VALUES WILL BE IN THE LOWER 40S. SMOKE DISPERSION WILL BE FAIR TO GOOD.  
 
   
REST OF TODAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY. SLIGHT CHANCE OF SHOWERS LATE IN  
THE MORNING. SLIGHT CHANCE OF SHOWERS IN THE  
AFTERNOON. CHANCE OF SHOWERS 20 PERCENT.  
CWR.................20 PERCENT DECREASING TO 10 PERCENT LATE IN THE  
MORNING, THEN INCREASING TO 20 PERCENT IN THE  
AFTERNOON.  
TEMPERATURE.........38 AT IGNITION...MAX 45.  
RH..................67 PERCENT AT IGNITION...MIN 51 PERCENT.  
WIND (20 FT)........WINDS WEST AT 10 MPH AT IGNITION...OTHERWISE  
NORTHWEST WINDS 10 TO 15 MPH.  
SMOKE DISPERSAL.....GOOD /44600 KNOT-FT/ AT IGNITION.  
MAX...EXCELLENT /78000 KNOT-FT/.  
HAINES INDEX........3 VERY LOW AT IGNITION...MAX 3.  
 
TIME (CDT) 11A 12P 1PM 2PM 3PM 4PM 5PM 6PM  
SKY (%).........96 96 96 95 94 93 90 87  
WEATHER COV.....SCH SCH SCH SCH SCH SCH SCH  
WEATHER TYPE....RW RW RW RW RW RW RW  
TSTM COV........  
CWR.............20 10 20 20 20 20 20 20  
TEMP............38 40 41 42 43 44 45 45  
RH..............67 62 59 57 57 55 51 53  
20 FT WIND DIR..W NW NW NW NW NW NW NW  
20 FT WIND SPD..8 8 9 9 9 9 9 9  
20 FT WIND GUST.14 14 14 14 15 16 15 15  
HAINES INDEX....3 3 3 3 3 3 3 3  
SDSPL KT-FT/100045 49 55 52 67 78 60 57  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY THEN  
BECOMING MOSTLY CLOUDY. SLIGHT CHANCE OF  
SHOWERS EARLY IN THE EVENING. CHANCE OF SHOWERS  
20 PERCENT.  
CWR.................20 PERCENT DECREASING TO 10 PERCENT.  
TEMPERATURE.........MIN 34.  
RH..................MAX 85 PERCENT.  
WIND (20 FT)........NORTHWEST WINDS 5 TO 8 MPH.  
SMOKE DISPERSAL.....POOR TO FAIR (5600-18600 KNOT-FT).  
 
TIME (CDT) 7 PM 9 PM 11 PM 1 AM 3 AM 5 AM  
SKY (%).........83 64 53 51 57 66  
WEATHER COV.....S CHC  
WEATHER TYPE....RNSHWR NONE NONE NONE NONE NONE  
TSTM COV........  
CWR.............20 10 10 0 0 0  
TEMP............45 42 40 38 37 36  
RH..............55 65 70 79 82 85  
20 FT WIND......NW 8 NW 7 NW 7 NW 7 NW 7 NW 7  
20 FT WIND GUST.14  
HAINES INDEX....3 3 3 3 3 3  
SDSPL KT-FT/100019 6 15 10 11 17  
   
THURSDAY
 
 
SKY/WEATHER.........PARTLY SUNNY.  
CWR.................0 PERCENT.  
TEMPERATURE.........MAX 53.  
RH..................MIN 43 PERCENT.  
WIND (20 FT)........NORTHWEST WINDS 5 TO 9 MPH.  
SMOKE DISPERSAL.....FAIR TO GOOD (15600-52000 KNOT-FT).  
HAINES INDEX........3 VERY LOW.  
 
TIME (CDT) 7 AM 9 AM 11 AM 1 PM 3 PM 5 PM  
SKY (%).........77 75 73 71 63 52  
WEATHER COV.....  
WEATHER TYPE....NONE NONE NONE NONE NONE NONE  
TSTM COV........  
CWR.............0 0 0 0 0 0  
TEMP............35 39 44 48 52 53  
RH..............89 76 62 51 46 43  
20 FT WIND......NW 6 NW 8 NW 9 NW 9 NW 9 NW 8  
20 FT WIND GUST.7 13 15 14 14 14  
HAINES INDEX....3 3 3 3 3 3  
SDSPL KT-FT/100016 29 38 50 47 32  
 

 
FORECASTER...JSB  
REQUESTED BY...WESTON OLSON  
TYPE OF REQUEST...PRESCRIBED  
.TAG 2109051.0/ARX  
.DELDT 04/14/21  
.EMAIL WESTON.OLSON@BIA.GOV  
 
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