Spot Forecast
Issued by NWS Grand Rapids, MI

670
FNUS73 KGRR 111024
FWSGRR

Spot Forecast for Pierce Road...MI DNR
National Weather Service Grand Rapids MI
624 AM EDT Wed Jun 11 2025

Forecast is based on ignition time of 1300 EDT on June 11.
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...
Mostly sunny skies are forecast today. Winds will steadily increase
through the late morning into early afternoon hours. By ignition
time, wind direction should be around 250 degrees and gusts of 25
to 30 mph are very likely. Those wind gusts are not expected to
decrease until after 4pm or so.

.REST OF TODAY...

Sky/weather.........Sunny (10-20 percent).
Temperature.........78 at ignition...Max 81.
RH..................48 percent at ignition...Min 41 percent.
Wind (20 ft)........Winds west at 16 mph at ignition...otherwise
                    West winds 13 to 16 mph shifting to the
                    northwest around 10 mph in the evening.
Mixing height.......3700 ft AGL at ignition...otherwise 4800 ft
                    AGL.
Mixing winds........West 21 to 29 mph.
Smoke dispersal.....1050 /excellent/ at ignition. Max...1330
                    /excellent/.

TIME (EDT)      1PM 2PM 3PM 4PM 5PM 6PM 7PM 8PM 9PM 10P 11P MID
Sky (%).........29  5   3   16  18  21  16  30  34  44  48  61
Weather cov.....
Weather type....
Tstm cov........
Temp............78  79  80  80  80  78  76  75  69  64  62  59
RH..............48  45  44  44  41  45  46  48  59  70  72  80
20 FT wind dir..W   W   W   W   W   W   NW  NW  NW  N   N   N
20 FT wind spd..16  15  15  15  14  13  10  6   6   3   2   2
20 FT wind gust.26  26  26  26  24  23  20  15  13  10  8   7
Mix hgt (kft)...3.7 3.9 4.3 4.8 4.7 4.2 3.7 2.5 0.9 0.8 0.6 0.5
Mixing wind dir.W   W   W   W   W   NW  NW  NW  N   N   N   N
Mixing wind spd.29  28  28  28  25  24  21  15  12  10  10  9
Smoke disprsl...105010801180133011901020770 380 100 90  60  50

.TONIGHT...

Sky/weather.........Partly cloudy (35-45 percent) then becoming
                    mostly cloudy (70-80 percent). Slight chance of
                    rain showers in the evening. Chance of rain
                    showers and slight chance of thunderstorms
                    overnight.
Temperature.........Min 53.
RH..................Max 90 percent.
Wind (20 ft)........Northwest winds around 6 mph in the evening
                    becoming light. Gusty and erratic winds
                    expected near thunderstorms toward daybreak.
Mixing height.......400 ft AGL.
Mixing winds........North 6 to 15 mph decreasing to 5 to 6 mph
                    overnight.
Smoke dispersal.....380 (good) early in the evening decreasing to
                    20 (poor) late in the night.

.THURSDAY...

Sky/weather.........Partly sunny (50-60 percent). Chance of rain
                    showers until midday, then slight chance of
                    rain showers in the afternoon.
Temperature.........Max 74.
RH..................Min 43 percent.
Wind (20 ft)........Light winds becoming northeast 5 to 6 mph in
                    the afternoon.
Mixing height.......4500 ft AGL.
Mixing winds........East 3 to 7 mph shifting to the north.
Smoke dispersal.....30 (poor) early in the morning increasing to
                    230 (fair) in the afternoon.

$$
Forecaster...Hoving
Requested by...Nate Stearns
Type of request...PRESCRIBED
.TAG 2515672.0/GRR
.DELDT 06/11/25
.FormatterVersion 2.0.0
.EMAIL stearnsn@michigan.gov