FNUS73 KGRR 271052
FWSGRR

Spot Forecast for Pollinator Field...MI DNR
National Weather Service Grand Rapids MI
652 AM EDT Thu Mar 27 2025

Forecast is based on ignition time of 1300 EDT on March 27. 
If conditions become unrepresentative, contact the National Weather
Service.

Please contact our office at (616) 949-5150, if you have questions
or concerns with this forecast.

.DISCUSSION...
Partly sunny today and turning breezy by Noon. Winds west-southwest
increasing to 10 to 20 mph with higher gusts. Minimum RH expected to
be 40 to 45 percent. 

.TODAY...

Sky/weather.........Partly sunny (60-70 percent). 
Temperature.........52 at ignition...Max 53. 
RH..................44 percent at ignition...Min 44 percent. 
Wind (20 ft)........Winds west at 16 mph at ignition...otherwise 
                    West winds 9 to 17 mph. 
Mixing height.......4500 ft AGL at ignition...otherwise 5500 ft 
                    AGL. 
Mixing winds........West 17 to 24 mph. 
Smoke dispersal.....1030 /excellent/ at ignition. Max...1320 
                    /excellent/. 

TIME (EDT)      1PM 2PM 3PM 4PM 5PM 6PM 7PM 8PM 9PM 10P 11P MID 
Sky (%).........59   74   72   78  62  50  54  50  45  54  60  62  
Weather cov.....                                                
Weather type....                                                
Tstm cov........                                                
Temp............52   51   51   50  51  51  50  47  44  42  40  40  
RH..............44   48   46   56  56  56  58  65  73  79  82  79  
20 FT wind dir..W    W    W    W   W   W   W   W   W   W   SW  S   
20 FT wind spd..16   17   16   15  15  13  9   6   5   3   3   3   
20 FT wind gust.23   26   26   25  25  22  18  12  10  8   7   7   
Mix hgt (kft)...4.5  5.5  4.4  4.0 3.6 3.3 2.7 0.4 0.4 0.4 0.3 0.3 
Mixing wind dir.W    W    W    W   W   W   W   W   W   W   SW  S   
Mixing wind spd.23   24   23   24  23  22  17  10  9   7   6   7   
Smoke disprsl...1030 1320 1020 970 830 720 460 50  40  20  20  20  

.TONIGHT...

Sky/weather.........Partly cloudy (45-55 percent) then becoming 
                    mostly cloudy (65-75 percent). 
Temperature.........Min 37. 
RH..................Max 89 percent. 
Wind (20 ft)........West winds 5 to 6 mph in the evening becoming 
                    light, then becoming south around 5 mph through 
                    about 2 am becoming light becoming southeast 5 
                    to 7 mph overnight. 
Mixing height.......300 ft AGL. 
Mixing winds........West 6 to 10 mph shifting to the southeast 7 to 
                    14 mph after midnight. 
Smoke dispersal.....20 (poor). 

.FRIDAY...

Sky/weather.........Mostly cloudy (75-85 percent). Rain showers 
                    likely. 
Temperature.........Max 64. 
RH..................Min 70 percent. 
Wind (20 ft)........Southeast winds 8 to 10 mph shifting to the 
                    south 10 to 12 mph with gusts to around 23 mph 
                    in the afternoon. 
Mixing height.......1600 ft AGL. 
Mixing winds........South 14 to 17 mph shifting to the southwest 18 
                    to 21 mph late in the day. 
Smoke dispersal.....100 (poor) early in the morning increasing to 
                    340 (good) in the afternoon. 

$$
Forecaster...Meade
Requested by...Fire Specialist
Type of request...PRESCRIBED
.TAG 2508110.0/GRR
.DELDT 03/27/25
.FormatterVersion 2.0.0
.EMAIL corserj@michigan.gov