069  
FNUS73 KARX 201241  
FWSARX  
 
SPOT FORECAST FOR TREMPEALEAU...US FISH AND WILDLIFE SERVICE  
NATIONAL WEATHER SERVICE LA CROSSE WI  
641 AM CST THU FEB 20 2025  
 
FORECAST IS BASED ON IGNITION TIME OF 1000 CST ON FEBRUARY 20.  
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
 
 
OUR PERSISTENT WINDS OUT OF THE NORTHWEST CONTINUE TODAY THROUGH  
SUNSET WITH SPEEDS OF 5 TO 15 MPH. AFTER SUNSET, WINDS WILL BEGIN  
TO TURN COUNTER-CLOCKWISE, BECOMING OUT OF THE SOUTHWEST BY MID-  
MORNING FRIDAY. FRIDAY AFTERNOON MAY BRING GUSTS AS HIGH AS 20  
MPH. RH VALUES WILL LARGELY REMAIN ABOVE 50 PERCENT, BUT COULD  
DROP INTO THE MID 40S FRIDAY AFTERNOON. AT LEAST A FEW INCHES OF  
SNOW COVER REMAINS ACROSS MUCH OF THE GROUND.  
   
REST OF TODAY
 
 
SKY/WEATHER.........CLOUDY (85-95 PERCENT) THEN BECOMING MOSTLY  
SUNNY (25-35 PERCENT).  
CWR.................0 PERCENT.  
CHANCE OF THUNDER...0 PERCENT.  
TEMPERATURE.........7 AT IGNITION...MAX 18.  
RH..................72 PERCENT AT IGNITION...MIN 58 PERCENT.  
WIND (20 FT)........WINDS NORTHWEST AT 7 MPH AT  
IGNITION...OTHERWISE NORTHWEST WINDS 6 TO 8  
MPH.  
MIXING HEIGHT.......1300 FT AGL AT IGNITION...OTHERWISE 2500 FT  
AGL.  
TRANSPORT WINDS.....NORTHWEST 12 TO 14 MPH.  
SMOKE DISPERSAL.....FAIR /16000 KNOT-FT/ AT IGNITION. MAX...FAIR  
/29900 KNOT-FT/.  
 
TIME (CST) 10A 11A 12P 1PM 2PM 3PM 4PM 5PM  
SKY (%).........90 90 40 33 29 26 24 27  
WEATHER COV.....  
WEATHER TYPE....  
TSTM COV........  
CWR.............0 0 0 0 0 0 0 0  
CHC OF THDR (%).M M M M M M M M  
TEMP............7 10 13 16 17 18 18 16  
RH..............72 69 67 61 58 59 59 61  
20 FT WIND DIR..NW NW NW NW NW NW NW NW  
20 FT WIND SPD..7 7 7 7 8 8 7 6  
20 FT WIND GUST.14 14 13 13 13 13 12 13  
MIX HGT (KFT)...1.3 1.6 2.0 2.3 2.5 2.5 2.5 1.8  
TRANSP WIND DIR.NW NW NW NW NW NW W W  
TRANSP WIND SPD.14 14 13 13 14 13 13 12  
SDSPL KT-FT/100016 20 22 25 30 28 28 18  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLEAR (15-25 PERCENT).  
CWR.................0 PERCENT.  
CHANCE OF THUNDER...0 PERCENT.  
TEMPERATURE.........MIN -4.  
RH..................MAX 83 PERCENT.  
WIND (20 FT)........WEST WINDS AROUND 5 MPH EARLY IN THE EVENING  
BECOMING LIGHT.  
MIXING HEIGHT.......500 FT AGL.  
TRANSPORT WINDS.....WEST 6 TO 9 MPH.  
SMOKE DISPERSAL.....POOR (2600 KNOT-FT).  
 
TIME (CST) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM  
SKY (%).........27 14 6 18 29 31  
WEATHER COV.....  
WEATHER TYPE....NONE NONE NONE NONE NONE NONE  
TSTM COV........  
CWR.............0 0 0 0 0 0  
CHC OF THDR (%).M M M M M M  
TEMP............12 8 5 3 1 -2  
RH..............70 76 76 79 79 82  
20 FT WIND......W 5 W 4 W 3 W 3 W 3 W 3  
20 FT WIND GUST.11 8 7 6 5 5  
MIX HGT (FT)....700 600 600 500 500 500  
TRANSPORT WIND..W 9 NW 8 NW 6 W 6 W 6 W 7  
SDSPL KT-FT/10006 4 3 3 3 3  
   
FRIDAY
 
 
SKY/WEATHER.........SUNNY (0-10 PERCENT).  
CWR.................0 PERCENT.  
CHANCE OF THUNDER...0 PERCENT.  
TEMPERATURE.........MAX 20.  
RH..................MIN 55 PERCENT.  
WIND (20 FT)........LIGHT WINDS BECOMING SOUTHWEST 5 TO 8 MPH.  
MIXING HEIGHT.......2300 FT AGL.  
TRANSPORT WINDS.....SOUTHWEST 7 TO 16 MPH INCREASING TO 15 TO 18  
MPH LATE IN THE AFTERNOON.  
SMOKE DISPERSAL.....POOR (3100 KNOT-FT) EARLY IN THE MORNING  
INCREASING TO GOOD (36900 KNOT-FT) IN THE  
AFTERNOON.  
 
TIME (CST) 6 AM 8 AM 10 AM NOON 2 PM 4 PM  
SKY (%).........5 11 10 8 4 4  
WEATHER COV.....  
WEATHER TYPE....NONE NONE NONE NONE NONE NONE  
TSTM COV........  
CWR.............0 0 0 0 0 0  
CHC OF THDR (%).M M M M M M  
TEMP............-4 0 9 16 19 18  
RH..............85 76 67 61 56 56  
20 FT WIND......W 2 SW 2 SW 3 SW 5 SW 7 SW 8  
20 FT WIND GUST.5 5 8 12 14 15  
MIX HGT (FT)....500 600 1300 2300 2300 1900  
TRANSPORT WIND..W 7 SW 7 SW 10 SW 15 SW 17 SW 17  
SDSPL KT-FT/10003 3 12 30 35 29  
 

 
FORECASTER...AF  
REQUESTED BY...JACOB SAVERYNSKI  
TYPE OF REQUEST...PRESCRIBED  
.TAG 2503265.0/ARX  
.DELDT 02/20/25  
.FORMATTERVERSION 2.0.0  
.EMAIL JACOB_SAVERYNSKI@FWS.GOV  
 
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