####018005608#### FNUS73 KAPX 241940 FWSAPX Spot Forecast for Warbler 6...USFS National Weather Service Gaylord MI 340 PM EDT Wed Apr 24 2024 Forecast is based on ignition time of 0900 EDT on April 25. 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... Expecting light and variable winds Thursday, with minimal gustiness. Background flow should be from the southeast...enhanced starting as early as mid-late morning by lake breeze development. Cold start to the day, with lows likely in the low to mid teens...but temperatures expected to recover into the upper 40s to lower 50s...and RHs should be in the low 20s again, similar to today, or perhaps a little lower. .THURSDAY... Sky/weather.........Sunny (0-10 percent). Max temperature.....Around 52. Min humidity........25 percent. 20-foot winds.......Light winds becoming south around 5 mph in the afternoon. Transport winds.....South 6 to 7 mph. Mixing height.......1700-3300 ft AGL increasing to 3800-5600 ft AGL in the afternoon. Haines Index........4 or low potential for large plume dominated fire growth. Ventilation index...Poor (98.0). TIME (EDT) 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM Sky (%).........5 4 2 2 2 2 2 2 2 Weather cov..... Weather type.... Tstm cov........ Temp............28 32 38 42 44 48 50 51 52 RH..............67 58 44 37 33 27 26 25 26 20 ft wind dir..S S S SE SE SE SE SE SE 20 ft wind spd..3 3 3 5 5 5 6 6 6 20 ft wind gust.6 6 6 7 7 7 7 7 7 Mix hgt (kft)...1.7 2.1 3.3 3.8 4.6 5.1 5.3 5.6 5.6 Haines index....4 4 4 4 4 4 4 4 4 Transp wind dir.S S S SE S S S S S Transp wind spd.6 6 6 6 6 6 6 7 6 Vrate kt-ft.....98 122 189 221 264 291 306 387 322 Ventrate Cat....PR PR PR PR PR PR PR PR PR .THURSDAY NIGHT... Sky/weather.........Mostly clear (10-20 percent). Min temperature.....Around 27. Max humidity........81 percent. 20-foot winds.......Southeast winds 5 to 7 mph. Transport winds.....South 7 to 12 mph. Mixing height.......3700-5200 ft AGL decreasing to 300-1400 ft AGL early in the evening. Haines Index........4 or low potential for large plume dominated fire growth. Ventilation index...Poor (29.0). TIME (EDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM Sky (%).........2 2 3 10 18 25 18 11 4 4 5 5 Weather cov..... Weather type.... Tstm cov........ Temp............51 50 47 44 40 36 34 32 31 30 29 29 RH..............26 29 32 39 46 54 59 64 69 74 79 81 20 ft wind dir..SE SE SE SE SE SE SE SE SE SE SE SE 20 ft wind spd..6 6 6 7 7 7 6 6 6 6 6 6 20 ft wind gust.10 10 10 12 12 12 10 10 10 9 9 9 Mix hgt (kft)...5.2 3.7 1.4 0.8 0.5 0.4 0.3 0.3 0.3 0.3 0.3 0.4 Haines index....4 4 4 4 4 4 4 4 4 4 4 4 Transp wind dir.S S S SE SE SE S S S S S S Transp wind spd.7 8 10 8 8 8 9 10 10 10 12 12 Vrate kt-ft.....360 302 144 62 37 29 30 31 33 34 36 40 Ventrate Cat....PR PR PR PR PR PR PR PR PR PR PR PR .FRIDAY... Sky/weather.........Mostly sunny (30-40 percent). Max temperature.....Around 60. Min humidity........30 percent. 20-foot winds.......Southeast winds 5 to 13 mph. Transport winds.....South 12 to 21 mph shifting to the southeast 22 to 24 mph in the afternoon. Mixing height.......300-1400 ft AGL increasing to 2400-4000 ft AGL in the late morning and afternoon. Haines Index........4 or low potential for large plume dominated fire growth. Ventilation index...Poor to fair (33.0-431.0) increasing to good (666.0) late in the morning. TIME (EDT) 6 AM 8 AM 10 AM NOON 2 PM 4 PM Sky (%).........20 49 37 37 48 49 Weather cov..... Weather type....NONE NONE NONE NONE NONE NONE Tstm cov........ Temp............30 34 45 53 57 59 RH..............83 75 50 35 30 32 20 ft wind dir..SE SE SE SE SE SE 20 ft wind spd..8 8 14 16 16 17 20 ft wind gust.12 12 21 23 23 25 Mix hgt (ft)....300 600 2400 3600 3800 4000 Haines index....4 4 4 4 4 4 Transport wind..S 12 S 13 S 18 SE 22 SE 22 SE 24 Vrate kt-ft.....33 74 431 781 838 944 Ventrate Cat....POOR POOR FAIR GOOD GOOD GOOD $$ Forecaster...FEF Requested by...Travis Wiltse Type of request...PRESCRIBED .TAG 2412325.0/APX .DELDT 04/24/24 .FormatterVersion 2.0.0 .EMAIL travis.a.wiltse@usda.gov