FNUS73 KARX 150937 FWSARX Spot Forecast for McCoy RX 4...US FISH AND WILDLIFE SERVICE National Weather Service La Crosse WI 437 AM CDT Wed Apr 15 2026 Forecast is based on ignition time of 0600 CDT on April 15. 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... Ample moisture left in the wake of our past few days of storms will result in high RH values through the day with fog possible in the morning and daytime RH values only falling to around 70 percent. Winds today will be light and variable, favored from the north. The risk for additional showers and storms will be mainly south this afternoon, but cannot rule out some storms keeping in during the late afternoon and evening. .TODAY... Sky/weather.........Mostly cloudy (75-85 percent). Patchy fog early in the morning. Slight chance of showers and thunderstorms early in the morning. Slight chance of showers and thunderstorms in the afternoon. CWR.................20 percent decreasing to 10 percent late in the morning, then increasing to 40 percent in the afternoon. Chance of thunder...39 percent. Temperature.........55 at ignition...Max 66. RH..................96 percent at ignition...Min 70 percent. Wind (20 ft)........Winds northwest at 1 mph at ignition...otherwise Light winds. Gusty and erratic winds near thunderstorms in the afternoon. Mixing height.......700 ft AGL at ignition...otherwise 2600 ft AGL increasing to 2700 ft AGL late in the afternoon. Transport winds.....North 3 to 6 mph. Smoke dispersal.....Poor /3500 knot-ft/ at ignition. Max...poor /12100 knot-ft/. TIME (CDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM Sky (%).........89 84 84 88 86 84 81 79 74 80 79 72 Weather cov.....SCH SCH SCH PTY SCH CHC CHC CHC CHC CHC Weather type....RNF RNF RNF FOG RW RW RW RW RW RW Tstm cov........SCH SCH SCH SCH CHC CHC CHC CHC CHC CWR.............20 20 20 10 10 10 20 30 30 40 30 40 Chc of thdr (%).20 20 20 10 10 10 20 30 30 40 30 40 Temp............55 55 56 58 60 62 63 64 64 65 64 65 RH..............96 96 96 90 87 81 78 75 75 73 73 70 20 FT wind dir..NW N NW N N N NW N N NE NE NE 20 FT wind spd..1 2 2 1 2 3 3 3 3 3 3 3 20 FT wind gust.6 5 5 5 5 7 7 7 6 7 7 6 Mix hgt (kft)...0.7 0.7 1.0 1.1 1.3 1.6 1.9 2.4 2.5 2.6 2.7 2.3 Transp wind dir.NW N N N N N N N N N NW N Transp wind spd.6 6 6 5 5 6 6 6 5 5 3 3 SDspl kt-ft/10004 3 5 4 5 8 10 12 10 10 8 7 .TONIGHT... Sky/weather.........Mostly cloudy (70-80 percent). Chance of showers and thunderstorms through the night. CWR.................40 percent. Chance of thunder...35 percent. Temperature.........Min 49. RH..................Max 93 percent. Wind (20 ft)........Light winds. Gusty and erratic winds near thunderstorms. Mixing height.......600 ft AGL. Transport winds.....Northeast 5 to 6 mph shifting to the east 6 to 10 mph early in the evening. Smoke dispersal.....Poor (3300 knot-ft). TIME (CDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM Sky (%).........81 79 69 76 80 78 75 77 83 83 81 78 Weather cov.....CHC CHC CHC SCH SCH SCH CHC CHC CHC CHC CHC CHC Weather type....RW RW RW RW RW RW RW RW RW RW RW RW Tstm cov........CHC CHC CHC SCH SCH SCH SCH SCH SCH SCH SCH SCH CWR.............40 30 30 20 20 20 30 30 30 30 30 30 Chc of thdr (%).40 30 30 20 20 20 20 20 20 20 20 20 Temp............65 62 60 58 57 56 55 54 54 53 52 52 RH..............70 78 84 87 86 86 90 90 90 93 93 93 20 FT wind dir..NE NE NE E E E NE E NE NE NE NE 20 FT wind spd..3 3 3 2 3 4 3 3 3 3 3 4 20 FT wind gust.6 7 8 8 9 9 8 9 7 7 7 9 Mix hgt (kft)...1.7 0.7 0.6 0.6 0.6 0.7 0.7 0.7 0.8 0.8 0.8 0.7 Transp wind dir.N NE E E E E E E E E NE E Transp wind spd.5 6 7 7 8 10 8 7 6 7 7 7 SDspl kt-ft/10007 3 4 4 4 6 5 4 4 5 5 4 .THURSDAY... Sky/weather.........Mostly cloudy (65-75 percent) then becoming mostly sunny (25-35 percent). Chance of rain showers in the morning, then slight chance of rain showers in the afternoon. CWR.................40 percent. Chance of thunder...17 percent. Temperature.........Max 71. RH..................Min 53 percent. Wind (20 ft)........Light winds. Mixing height.......2200 ft AGL increasing to 4200 ft AGL in the afternoon. Transport winds.....East 3 to 7 mph shifting to the south 5 to 6 mph late in the afternoon. Smoke dispersal.....Poor (3900 knot-ft) early in the morning increasing to fair (21100 knot-ft) in the afternoon. TIME (CDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM Sky (%).........82 82 85 75 64 54 44 34 27 21 14 11 Weather cov.....CHC CHC CHC CHC CHC CHC CHC SCH SCH SCH SCH SCH Weather type....RW RW RW RW RW RW RW RW RW RW RW RW Tstm cov........SCH CWR.............40 30 30 30 30 30 30 20 20 20 20 20 Chc of thdr (%).20 10 10 10 0 0 0 10 10 10 10 10 Temp............52 50 51 54 57 60 63 66 68 69 70 70 RH..............93 100 96 90 83 75 67 61 57 55 53 53 20 FT wind dir..NE NE N NE NE NE NE NE E S S S 20 FT wind spd..3 2 2 2 2 2 3 3 3 3 3 3 20 FT wind gust.8 7 7 7 8 8 9 9 9 9 9 9 Mix hgt (kft)...0.8 0.8 1.1 1.2 1.3 1.6 2.2 2.8 3.3 3.7 4.2 3.0 Transp wind dir.E NE E E NE NE E E SE S SW S Transp wind spd.6 6 7 7 7 6 5 3 5 5 6 6 SDspl kt-ft/10004 4 7 7 8 8 9 8 13 15 21 15 $$ Forecaster...KS Requested by...Sam Matelski Type of request...PRESCRIBED .TAG 2610072.3/ARX .DELDT 04/15/26 .FormatterVersion 2.0.0 .EMAIL Sam.matelski@usda.gov