FNUS73 KAPX 211002 FWSAPX Spot Forecast for Peacock 545 and 159...USFS National Weather Service Gaylord MI 602 AM EDT Tue Apr 21 2026 Forecast is based on ignition time of 0800 EDT on April 21. If conditions become unrepresentative... contact the National Weather Service. Please contact our office at (989)732-9306, if you have questions or concerns with this forecast. .DISCUSSION... Rain-free weather expected across the burn location through Wednesday. Low level moisture remains a bit more abundant today, likely keeping afternoon humidity values above 40 percent through the afternoon. Good moisture recovery tonight, followed by more aggressive mixing out of moisture on Wednesday...forcing afternoon RH values to drop well below 40 percent. South winds this morning steadily veer through the day, with west winds by the middle of the afternoon. Winds will be a touch gusty this morning, at times gusting to 15 to 20 mph. Wind speeds will steadily decrease through the afternoon. Light winds expected tonight and Wednesday. Mixing heights today will be somewhat limited, likely topping out a bit above 3 kft this afternoon. .TODAY... Sky/weather.........Sunny (15-25 percent). Chance of thunder...0 percent. Max temperature.....Around 67. Min humidity........48 percent. 20-foot winds.......South winds around 7 mph with gusts to around 20 mph shifting to the west 6 to 7 mph late in the afternoon. Transport winds.....Southwest 13 to 18 mph shifting to the west 12 to 13 mph late in the afternoon. Mixing height.......700-2500 ft AGL increasing to 2700-3100 ft AGL in the afternoon. Ventilation index...Poor to good (85.0-329.0). TIME (EDT) 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM Sky (%).........13 25 19 21 28 22 20 17 11 9 Weather cov..... Weather type.... Tstm cov........ Chc of thdr (%).0 0 0 0 0 0 0 0 0 0 Temp............41 45 50 55 58 61 63 65 65 67 RH..............67 63 58 57 55 53 52 48 50 49 20 ft wind dir..S S S S SW SW SW W W W 20 ft wind spd..7 7 7 7 7 7 7 7 7 7 20 ft wind gust.18 20 20 20 17 17 17 16 16 16 Mix hgt (kft)...0.7 1.1 1.7 2.2 2.5 2.7 2.9 3.0 3.1 3.1 Transp wind dir.S S SW SW SW SW W W W W Transp wind spd.14 17 18 16 14 13 13 13 12 12 Vrate kt-ft.....85 165 273 305 296 297 318 329 307 315 Ventrate Cat....PR FR FR GD FR FR GD GD GD GD .TONIGHT... Sky/weather.........Mostly clear (0-10 percent). Chance of thunder...0 percent. Min temperature.....Around 38. Max humidity........89 percent. 20-foot winds.......Northwest winds 5 to 6 mph early in the evening becoming light. Transport winds.....Northwest around 9 mph shifting to the northeast 7 to 9 mph after 3 am. Mixing height.......800-2700 ft AGL decreasing to 400-700 ft AGL in the late evening and overnight. Ventilation index...Poor to fair (24.0-212.0). TIME (EDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM Sky (%).........8 7 6 6 12 6 3 3 2 1 4 3 Weather cov..... Weather type.... Tstm cov........ Chc of thdr (%).0 0 0 0 0 0 0 0 0 0 0 0 Temp............65 64 61 55 52 49 46 45 43 42 40 40 RH..............52 54 60 69 74 77 79 76 79 82 85 82 20 ft wind dir..NW NW NW N N N NE NE NE NE NE NE 20 ft wind spd..6 6 6 2 22 2 2 2 2 2 2 20 ft wind gust.13 13 13 8 8 8 8 8 8 7 7 7 Mix hgt (kft)...2.7 2.3 0.8 0.7 0.5 0.5 0.5 0.5 0.4 0.4 0.4 0.4 Transp wind dir.W NW N N N N N N N NE NE NE Transp wind spd.9 9 7 8 9 9 10 10 10 9 8 7 Vrate kt-ft.....212 185 50 46 40 38 42 42 40 36 29 24 Ventrate Cat....FR FR PR PR PR PR PR PR PR PR PR PR .WEDNESDAY... Sky/weather.........Sunny (0-10 percent). Chance of thunder...0 percent. Max temperature.....Around 71. Min humidity........30 percent. 20-foot winds.......Light winds. Transport winds.....Northeast 5 to 7 mph shifting to the west around 5 mph late in the afternoon. Mixing height.......400-2200 ft AGL increasing to 2800-4600 ft AGL in the afternoon. Ventilation index...Poor to fair (16.0-177.0). TIME (EDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM Sky (%).........3 3 3 3 3 2 4 6 8 8 7 7 Weather cov..... Weather type.... Tstm cov........ Chc of thdr (%).0 0 0 0 0 0 0 0 0 0 0 0 Temp............39 38 40 44 51 57 62 65 68 70 70 70 RH..............89 89 79 73 59 49 41 35 32 30 31 32 20 ft wind dir..NE NE NE NE NE NE NW NW NW NW NW NW 20 ft wind spd..2 2 2 2 2 2 2 2 2 2 2 2 20 ft wind gust.7 7 7 7 7 7 7 7 7 7 7 7 Mix hgt (kft)...0.4 0.4 0.4 0.9 1.6 2.2 2.8 3.4 3.8 4.3 4.6 4.4 Transp wind dir.NE NE NE NE NE N N NW NW NW W W Transp wind spd.7 6 5 6 6 5 5 3 3 3 5 5 Vrate kt-ft.....24 20 16 46 75 89 100 106 114 138 165 177 Ventrate Cat....PR PR PR PR PR PR PR PR PR FR FR FR $$ Forecaster...MSB Requested by...Richard Davis Type of request...PRESCRIBED .TAG 2610981.0/APX .DELDT 04/21/26 .FormatterVersion 2.0.0 .EMAIL richard.w.davis@usda.gov