383  
FNUS73 KAPX 191249  
FWSAPX  
 
SPOT FORECAST FOR BISCHOFF...USFS  
NATIONAL WEATHER SERVICE GAYLORD MI  
849 AM EDT THU JUN 19 2025  
 
FORECAST IS BASED ON FORECAST START TIME OF 0942 EDT ON JUNE 19.  
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  
WIDESPREAD SHOWERS WILL COME TO AN END EARLY THIS  
AFTERNOON. RAIN-FREE WEATHER EXPECTED TONIGHT, WITH PERHAPS A FEW  
ADDITIONAL SHOWERS RETURNING ON FRIDAY. HUMIDITY WILL REMAIN  
ELEVATED THROUGH THE PERIOD, LIKELY REMAINING ABOVE 50 PERCENT.  
WINDS BECOME NORTHWEST TODAY AND REMAIN A BIT GUSTY. LIGHT WEST TO  
NORTHWEST WINDS TONIGHT BECOME SOUTHWEST ON FRIDAY. MIXING HEIGHTS  
WILL DEEPEN TODAY...ESPECIALLY THIS AFTERNOON WHEN THEY WILL  
EXCEED 3000 FT. MIXING HEIGHTS DECREASE TONIGHT BEFORE INCREASING  
SOME AGAIN ON FRIDAY.  
   
TODAY  
 
SKY/WEATHER.........MOSTLY CLOUDY (80-90 PERCENT). RAIN SHOWERS IN  
THE MORNING. SLIGHT CHANCE OF THUNDERSTORMS  
THROUGH THE DAY. CHANCE OF RAIN SHOWERS IN THE  
AFTERNOON.  
CHANCE OF THUNDER...20 PERCENT.  
MAX TEMPERATURE.....AROUND 77.  
MIN HUMIDITY........55 PERCENT.  
20-FOOT WINDS.......NORTH WINDS 7 TO 12 MPH SHIFTING TO THE  
NORTHWEST AROUND 8 MPH LATE IN THE AFTERNOON.  
GUSTY AND ERRATIC WINDS EXPECTED NEAR  
THUNDERSTORMS EARLY IN THE MORNING. GUSTY AND  
ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS LATE  
IN THE AFTERNOON.  
TRANSPORT WINDS.....NORTH 17 TO 24 MPH SHIFTING TO THE NORTHWEST 14  
TO 18 MPH IN THE AFTERNOON.  
MIXING HEIGHT.......900-2400 FT AGL INCREASING TO 3200-4300 FT AGL  
LATE IN THE AFTERNOON.  
VENTILATION INDEX...FAIR TO GOOD (211.0-568.0) INCREASING TO  
EXCELLENT (794.0) LATE IN THE AFTERNOON.  
 
TIME (EDT) 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM  
SKY (%).........94 94 92 91 91 88 93 87 74  
WEATHER COV.....LKY LKY CHC CHC CHC SCH SCH SCH  
WEATHER TYPE....RW RW RW RW RW RW RW RW  
TSTM COV........ SCH SCH SCH  
CHC OF THDR (%).10 10 10 10 10 20 20 20 20  
TEMP............61 63 64 65 67 72 72 74 76  
RH..............90 87 84 81 78 64 66 59 56  
20 FT WIND DIR..N N N NW NW NW NW NW NW  
20 FT WIND SPD..13 13 13 12 12 12 10 10 10  
20 FT WIND GUST.24 24 24 20 20 20 17 17 17  
MIX HGT (KFT)...1.4 1.5 1.6 1.9 2.1 2.4 3.2 3.3 4.3  
TRANSP WIND DIR.N N N N NW NW NW NW NW  
TRANSP WIND SPD.23 21 18 17 15 14 15 17 18  
VRATE KT-FT.....321 315 299 331 318 330 472 568 794  
VENTRATE CAT....GD GD FR GD GD GD GD GD EXL  
   
TONIGHT  
 
SKY/WEATHER.........MOSTLY CLOUDY (60-70 PERCENT) THEN BECOMING  
PARTLY CLOUDY (30-40 PERCENT).  
CHANCE OF THUNDER...18 PERCENT.  
MIN TEMPERATURE.....AROUND 58.  
MAX HUMIDITY........97 PERCENT.  
20-FOOT WINDS.......WEST WINDS 5 TO 7 MPH IN THE EVENING AND  
OVERNIGHT BECOMING LIGHT.  
TRANSPORT WINDS.....NORTHWEST 10 TO 17 MPH DECREASING TO 5 TO 7 MPH  
IN THE LATE EVENING AND OVERNIGHT.  
MIXING HEIGHT.......2300-3600 FT AGL DECREASING TO 400-1000 FT AGL  
EARLY IN THE EVENING.  
VENTILATION INDEX...GOOD TO EXCELLENT (347.0-616.0) DECREASING TO  
POOR (17.0) EARLY IN THE EVENING.  
 
TIME (EDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM  
SKY (%).........64 45 37 20 20 35 43 45 45 45 43 40  
WEATHER COV.....  
WEATHER TYPE....  
TSTM COV........  
CHC OF THDR (%).20 20 10 10 10 10 10 10 10 10 10 10  
TEMP............75 75 73 69 66 63 63 61 60 60 59 59  
RH..............55 55 62 70 75 83 85 87 90 91 93 92  
20 FT WIND DIR..NW NW NW W W W W W W W W W  
20 FT WIND SPD..9 9 9 6 6 6 6 6 6 5 5 5  
20 FT WIND GUST.16 16 16 12 12 12 10 10 10 10 10 10  
MIX HGT (KFT)...3.6 2.3 1.0 0.5 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4  
TRANSP WIND DIR.NW NW NW NW NW NW NW NW NW W W W  
TRANSP WIND SPD.17 15 10 6 7 7 7 7 6 5 6 6  
VRATE KT-FT.....616 347 101 29 29 29 29 27 23 17 21 21  
VENTRATE CAT....EXL GD PR PR PR PR PR PR PR PR PR PR  
   
FRIDAY  
 
SKY/WEATHER.........MOSTLY SUNNY (40-50 PERCENT). CHANCE OF  
THUNDERSTORMS LATE IN THE AFTERNOON. CHANCE OF  
RAIN SHOWERS LATE IN THE AFTERNOON.  
CHANCE OF THUNDER...24 PERCENT.  
MAX TEMPERATURE.....AROUND 82.  
MIN HUMIDITY........53 PERCENT.  
20-FOOT WINDS.......LIGHT WINDS BECOMING WEST AROUND 5 MPH EARLY IN  
THE MORNING, THEN BECOMING LIGHT LATE IN THE  
MORNING BECOMING SOUTHWEST 5 TO 8 MPH LATE IN  
THE MORNING. GUSTY AND ERRATIC WINDS EXPECTED  
NEAR THUNDERSTORMS LATE IN THE MORNING. GUSTY  
AND ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS  
LATE IN THE AFTERNOON.  
TRANSPORT WINDS.....WEST 6 TO 13 MPH INCREASING TO 14 TO 17 MPH IN  
THE AFTERNOON.  
MIXING HEIGHT.......400-2000 FT AGL INCREASING TO 2500-2800 FT AGL  
IN THE AFTERNOON.  
VENTILATION INDEX...POOR TO GOOD (23.0-480.0).  
 
TIME (EDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM  
SKY (%).........39 33 30 33 35 39 44 52 58 60 60 61  
WEATHER COV..... SCH SCH SCH SCH SCH SCH CHC CHC CHC CHC  
WEATHER TYPE.... RW RW RW RW RW RW RW RW RW RW  
TSTM COV........ SCH SCH SCH CHC CHC CHC SCH  
CHC OF THDR (%).10 10 10 10 10 10 10 10 20 20 20 20  
TEMP............59 60 63 66 72 75 76 78 79 80 81 81  
RH..............97 92 88 81 67 63 59 58 56 54 53 53  
20 FT WIND DIR..W W W W W W SW SW SW SW SW SW  
20 FT WIND SPD..6 6 6 6 6 6 9 9 9 9 9 9  
20 FT WIND GUST.12 12 12 12 12 12 15 15 15 15 15 15  
MIX HGT (KFT)...0.4 0.4 0.6 0.9 1.4 2.0 2.6 2.8 2.8 2.8 2.7 2.5  
TRANSP WIND DIR.W W W W W W W W W W W W  
TRANSP WIND SPD.7 6 8 7 7 9 13 16 17 17 16 14  
VRATE KT-FT.....25 23 44 60 100 188 332 439 476 480 433 351  
VENTRATE CAT....PR PR PR PR PR FR GD GD GD GD GD GD  
 
 
FORECASTER...MSB  
REQUESTED BY...JACKSON NELSON  
TYPE OF REQUEST...WILDFIRE  
.TAG 2516181.1/APX  
.DELDT 06/19/25  
.FORMATTERVERSION 2.0.0  
.EMAIL SM.FS.MIDC@USDA.GOV  
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