939  
FNUS73 KAPX 161646  
FWSAPX  
 
SPOT FORECAST FOR MIO PRAIRIE...USFS  
NATIONAL WEATHER SERVICE GAYLORD MI  
1246 PM EDT WED APR 16 2025  
 
FORECAST IS BASED ON IGNITION TIME OF 1700 EDT ON APRIL 16.  
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  
 
CLEAR SKIES WILL CONTINUE WITH NORTHWEST WINDS DECREASING THROUGH  
THE DAY. GUSTS UP TO 20 MPH WILL BE POSSIBLE THROUGH THE EVENING  
BEFORE TURNING LIGHT/CALM TONIGHT. RH VALUES WILL ALSO CONTINUE TO  
DECREASE AND LOWER TO AROUND 25 PERCENT IN THE NEXT COUPLE HOURS  
WITH MIXING HEIGHTS OF ~4,000 FT THROUGH THE EVENING.  
 
WINDS WILL TURN SOUTH-SOUTHEAST THURSDAY WITH ANOTHER DAY OF  
MOSTLY CLEAR SKIES, BREEZY WINDS, RH VALUES 20-25%, AND MIXING  
HEIGHTS RISING TO ~3,000 FT IN THE AFTERNOON. TEMPERATURES  
THURSDAY WILL RISE TO THE LOW 60S.  
 
   
REST OF TODAY  
 
SKY/WEATHER.........SUNNY (0-5 PERCENT).  
CHANCE OF THUNDER...0 PERCENT.  
MAX TEMPERATURE.....AROUND 48.  
MIN HUMIDITY........28 PERCENT.  
20-FOOT WINDS.......NORTHWEST WINDS AROUND 9 MPH WITH GUSTS TO 20 MPH.  
TRANSPORT WINDS.....NORTHWEST AROUND 20 MPH.  
MIXING HEIGHT.......4800 FT AGL.  
VENTILATION INDEX...EXCELLENT (935.0).  
 
TIME (EDT) 5PM  
SKY (%).........2  
WEATHER COV.....  
WEATHER TYPE....  
TSTM COV........  
CHC OF THDR (%).0  
TEMP............48  
RH..............28  
20 FT WIND DIR..NW  
20 FT WIND SPD..12  
20 FT WIND GUST.18  
MIX HGT (KFT)...4.8  
TRANSP WIND DIR.NW  
TRANSP WIND SPD.20  
VRATE KT-FT.....935  
VENTRATE CAT....EXL  
   
TONIGHT  
 
SKY/WEATHER.........CLEAR (0-10 PERCENT).  
CHANCE OF THUNDER...0 PERCENT.  
MIN TEMPERATURE.....AROUND 21.  
MAX HUMIDITY........88 PERCENT.  
20-FOOT WINDS.......NORTHWEST WINDS 5 TO 8 MPH EARLY IN THE EVENING BECOMING LIGHT.  
TRANSPORT WINDS.....NORTHWEST 13 TO 20 MPH BECOMING WEST AROUND 5 MPH.  
MIXING HEIGHT.......3600-4600 FT AGL DECREASING TO 400-500 FT AGL.  
VENTILATION INDEX...GOOD TO EXCELLENT (546.0-898.0) DECREASING TO  
POOR TO GOOD (14.0-332.0) EARLY IN THE EVENING.  
 
TIME (EDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM  
SKY (%).........2 1 0 1 1 1 1 1 1 1 5 5  
WEATHER COV.....  
WEATHER TYPE....  
TSTM COV........  
CHC OF THDR (%).0 0 0 0 0 0 0 0 0 0 0 0  
TEMP............46 44 42 36 33 31 29 27 25 24 23 22  
RH..............29 31 36 45 53 61 66 72 78 79 83 88  
20 FT WIND DIR..NW NW NW NW NW NW NW NW NW NW NW NW  
20 FT WIND SPD..10 10 10 6 6 6 3 3 3 2 2 2  
20 FT WIND GUST.16 16 16 14 14 14 8 8 8 6 6 6  
MIX HGT (KFT)...4.6 3.6 2.6 0.8 0.7 0.5 0.4 0.4 0.4 0.4 0.4 0.4  
TRANSP WIND DIR.NW NW N NW NW NW NW NW NW NW NW W  
TRANSP WIND SPD.20 15 13 9 9 8 7 7 6 5 3 5  
VRATE KT-FT.....898 546 332 70 67 42 29 29 23 19 14 17  
VENTRATE CAT....EXL GD GD PR PR PR PR PR PR PR PR PR  
   
THURSDAY  
 
SKY/WEATHER.........SUNNY (15-25 PERCENT).  
CHANCE OF THUNDER...0 PERCENT.  
MAX TEMPERATURE.....AROUND 61.  
MIN HUMIDITY........23 PERCENT.  
20-FOOT WINDS.......LIGHT WINDS BECOMING SOUTH 5 TO 8 MPH LATE IN  
THE MORNING.  
TRANSPORT WINDS.....SOUTH 5 TO 14 MPH INCREASING TO 15 TO 18 MPH  
LATE IN THE AFTERNOON.  
MIXING HEIGHT.......300-2100 FT AGL INCREASING TO 2300-3000 FT AGL  
IN THE AFTERNOON.  
VENTILATION INDEX...POOR TO GOOD (16.0-506.0) INCREASING TO GOOD  
(546.0) LATE IN THE AFTERNOON.  
 
TIME (EDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM  
SKY (%).........4 2 5 4 3 5 9 15 18 25 29 35  
WEATHER COV.....  
WEATHER TYPE....  
TSTM COV........  
CHC OF THDR (%).0 0 0 0 0 0 0 0 0 0 0 0  
TEMP............23 23 26 34 39 44 49 53 56 59 60 61  
RH..............84 84 71 54 44 35 30 27 24 23 24 25  
20 FT WIND DIR..SE SE SE S S S S S S S S S  
20 FT WIND SPD..3 3 3 9 9 9 9 9 9 12 12 12  
20 FT WIND GUST.9 9 9 14 14 14 14 14 14 20 20 20  
MIX HGT (KFT)...0.3 0.3 0.4 0.9 1.4 2.0 2.1 2.3 2.4 2.7 3.0 3.0  
TRANSP WIND DIR.S S SE SE S S S S S S S S  
TRANSP WIND SPD.5 5 7 6 7 12 13 14 14 15 17 18  
VRATE KT-FT.....16 16 29 50 98 226 270 299 330 413 506 546  
VENTRATE CAT....PR PR PR PR PR FR FR FR GD GD GD GD  
 
 
FORECASTER...NSC  
REQUESTED BY...TRAVIS WILTSE  
TYPE OF REQUEST...PRESCRIBED  
.TAG 2510701.0/APX  
.DELDT 04/16/25  
.FORMATTERVERSION 2.0.0  
.EMAIL TRAVIS.A.WILTSE@USDA.GOV  
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