614  
FNUS73 KARX 230912  
FWSARX  
 
SPOT FORECAST FOR LAMEY RX FIRE...THE NATURE CONSERVANCY  
NATIONAL WEATHER SERVICE LA CROSSE WI  
412 AM CDT FRI SEP 23 2022  
 
FORECAST IS BASED ON IGNITION TIME OF 0700 CDT ON SEPTEMBER 23.  
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
 
HIGH CLOUDS WILL CONTINUE TO INCREASE, THICKEN THIS  
MORNING...WITH A GRADUAL LOWERING AS WE MOVE INTO TONIGHT. COULD  
SEE A FEW SPRINKLES, POTENTIALLY A LIGHT SHOWER BY LATE MORNING,  
PERSISTING INTO THE AFTERNOON. ANY ACCUMULATIONS WOULD BE MINOR,  
JUST A FEW HUNDRETHS OF AN INCH. BETTER SHOT FOR ACCUMULATING  
RAINS THIS EVENING, WITH ISOLATED THUNDER ALSO POSSIBLE. AMOUNTS  
UPWARDS OF 1/10 INCH POSSIBLE. DESPITE THE CLOUDS, COULD GET  
SOME MIXING TOWARD THE NOON HOUR WITH PERHAPS A FEW GUSTS  
INTO THE UPPER TEENS.  
 
   
REST OF TODAY
 
 
SKY/WEATHER.........PARTLY SUNNY (60-70 PERCENT) THEN BECOMING  
CLOUDY (85-95 PERCENT). RAIN SHOWERS LIKELY IN  
THE AFTERNOON.  
CWR.................0 PERCENT INCREASING TO 30 PERCENT EARLY IN THE  
AFTERNOON, THEN INCREASING TO 60 PERCENT EARLY  
IN THE AFTERNOON DECREASING TO 50 PERCENT EARLY  
IN THE AFTERNOON DECREASING TO 40 PERCENT  
DECREASING TO 30 PERCENT LATE IN THE AFTERNOON  
DECREASING TO 20 PERCENT.  
TEMPERATURE.........45 AT IGNITION...MAX 62.  
RH..................94 PERCENT AT IGNITION...MIN 62 PERCENT.  
WIND (20 FT)........WINDS SOUTHEAST AT 3 MPH AT  
IGNITION...OTHERWISE LIGHT WINDS BECOMING SOUTH  
6 TO 9 MPH WITH GUSTS TO AROUND 19 MPH IN THE  
LATE MORNING AND AFTERNOON.  
MIXING HEIGHT.......400 FT AGL AT IGNITION...OTHERWISE 3000 FT AGL.  
TRANSPORT WINDS.....SOUTH 6 TO 15 MPH INCREASING TO 18 TO 20 MPH IN  
THE LATE MORNING AND AFTERNOON.  
SMOKE DISPERSAL.....POOR /2000 KNOT-FT/ AT IGNITION. MAX...GOOD  
/50500 KNOT-FT/.  
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH AT IGNITION...MAX 4.  
 
TIME (CDT) 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM  
SKY (%).........55 59 60 71 88 89 91 92 95 95 96  
WEATHER COV..... CHC LKY CHC CHC CHC SCH  
WEATHER TYPE.... RW RW RW RW RW RW  
TSTM COV........  
CWR.............0 0 0 10 10 30 60 50 40 30 20  
TEMP............45 47 51 56 59 60 60 61 59 59 58  
RH..............94 89 81 69 65 63 65 62 70 70 72  
20 FT WIND DIR..SE SE S S S S S S S S S  
20 FT WIND SPD..3 4 6 7 7 8 8 8 9 8 8  
20 FT WIND GUST.8 8 15 18 16 18 18 18 19 18 19  
MIX HGT (KFT)...0.4 0.4 0.9 1.5 2.2 2.4 2.6 3.0 2.5 2.3 2.0  
TRANSP WIND DIR.S S S S S S S S S S S  
TRANSP WIND SPD.6 7 15 18 20 18 18 20 20 20 18  
HAINES INDEX....4 4 4 4 4 4 3 3 3 3 3  
SDSPL KT-FT/10002 3 12 25 37 39 42 51 43 40 32  
   
TONIGHT
 
 
SKY/WEATHER.........CLOUDY (90-100 PERCENT). RAIN SHOWERS LIKELY  
AND SLIGHT CHANCE OF THUNDERSTORMS IN THE  
EVENING, THEN CHANCE OF RAIN SHOWERS OVERNIGHT.  
CWR.................30 PERCENT INCREASING TO 50 PERCENT EARLY IN  
THE EVENING, THEN INCREASING TO 60 PERCENT LATE  
IN THE EVENING DECREASING TO 50 PERCENT LATE IN  
THE EVENING DECREASING TO 40 PERCENT DECREASING  
TO 20 PERCENT OVERNIGHT DECREASING TO 10  
PERCENT.  
TEMPERATURE.........MIN 50.  
RH..................MAX 97 PERCENT.  
WIND (20 FT)........SOUTHEAST WINDS 5 TO 8 MPH WITH GUSTS TO AROUND  
20 MPH IN THE EVENING AND OVERNIGHT BECOMING  
LIGHT. GUSTY AND ERRATIC WINDS EXPECTED NEAR  
THUNDERSTORMS IN THE EVENING.  
MIXING HEIGHT.......800 FT AGL.  
TRANSPORT WINDS.....SOUTH 12 TO 18 MPH.  
SMOKE DISPERSAL.....FAIR (29500 KNOT-FT) EARLY IN THE EVENING  
DECREASING TO POOR (7500 KNOT-FT) LATE IN THE  
NIGHT.  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
 
TIME (CDT) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM  
SKY (%).........96 92 98 97 97 95  
WEATHER COV.....CHANCE CHANCE LIKELY CHANCE S CHC S CHC  
WEATHER TYPE....RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR  
TSTM COV........ S CHC S CHC  
CWR.............30 50 60 40 20 20  
TEMP............56 54 53 52 52 53  
RH..............74 83 89 93 96 93  
20 FT WIND......S 8 SE 8 SE 7 S 6 S 5 S 4  
20 FT WIND GUST.19 19 20 16 13 12  
MIX HGT (FT)....1800 1300 1400 1400 1100 1000  
TRANSPORT WIND..S 18 S 17 S 16 S 15 S 14 S 12  
HAINES INDEX....3 3 3 3 3 3  
SDSPL KT-FT/100030 20 20 18 14 10  
   
SATURDAY
 
 
SKY/WEATHER.........PARTLY SUNNY (60-70 PERCENT).  
CWR.................10 PERCENT.  
TEMPERATURE.........MAX 71.  
RH..................MIN 63 PERCENT.  
WIND (20 FT)........LIGHT WINDS BECOMING WEST AROUND 5 MPH LATE IN  
THE AFTERNOON, THEN BECOMING LIGHT LATE IN THE  
AFTERNOON.  
MIXING HEIGHT.......2700 FT AGL.  
TRANSPORT WINDS.....SOUTH 6 TO 12 MPH SHIFTING TO THE WEST 6 TO 15  
MPH LATE IN THE MORNING, THEN INCREASING TO 17  
TO 18 MPH LATE IN THE AFTERNOON.  
SMOKE DISPERSAL.....POOR (4400 KNOT-FT) EARLY IN THE MORNING  
INCREASING TO GOOD (39900 KNOT-FT) IN THE  
AFTERNOON.  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
 
TIME (CDT) 6 AM 8 AM 10 AM NOON 2 PM 4 PM  
SKY (%).........83 62 72 52 51 62  
WEATHER COV.....  
WEATHER TYPE....NONE NONE NONE NONE NONE NONE  
TSTM COV........  
CWR.............10 0 0 0 10 10  
TEMP............53 54 58 63 67 69  
RH..............97 100 92 77 67 63  
20 FT WIND......S 3 S 2 SW 3 SW 4 W 4 W 5  
20 FT WIND GUST.9 9 11 12 14 15  
MIX HGT (FT)....700 1100 1400 2200 2700 2500  
TRANSPORT WIND..S 8 S 12 SW 6 W 6 W 15 W 18  
HAINES INDEX....3 3 3 3 3 3  
SDSPL KT-FT/10005 11 7 11 35 40  
 

 
FORECASTER...TR  
REQUESTED BY...ROBERT BALE  
TYPE OF REQUEST...PRESCRIBED  
.TAG 2218508.0/ARX  
.DELDT 09/23/22  
.FORMATTERVERSION 2.0.0  
.EMAIL ROBERT.BALE@TNC.ORG  
 
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