Spot Forecast
Issued by NWS Marquette, MI
Issued by NWS Marquette, MI
499
FNUS73 KMQT 220918
FWSMQT
Spot Forecast for Mt Homer Fire...DNR
National Weather Service Marquette MI
518 AM EDT Sat Aug 22 2026
Forecast is based on forecast start time of 0700 EDT on August 22.
If conditions become unrepresentative...contact the National Weather
Service.
.DISCUSSION...
Low pressure will drop south from northern Ontario and move to
eastern Ontario through the weekend. This will bring an additional cold
front through the UP tonight, keeping the burn area under
northwest winds.
First, isolated showers will be possible early this morning and again
this afternoon, along with a slight chance for thunder. Strong storms are
not expected. Winds will gust to 20 mph this afternoon
as mixing deepens. Winds will remain gusty tonight, up to 25 mph,
as the cold front brings reinforcing cooler air into the area.
Dry weather is expected for Saturday night into Sunday.
.REST OF TODAY...
Sky/weather.........Mostly sunny (35-45 percent). Slight chance of
rain showers late in the morning.
Chance of pcpn......20 percent.
Chance of thunder...14 percent.
Temperature.........56 at forecast start...Max 70.
RH..................100 percent at forecast start...Min 64 percent.
Dewpoint............58 increasing to 59 in the late morning and
afternoon, then decreasing to 56 late in the
afternoon.
33-foot winds.......Winds west at 12 mph at forecast
start...otherwise Northwest winds 12 to 13 mph
becoming around 13 mph late in the afternoon.
20-foot winds.......Northwest winds around 10 mph.
Mixing height.......400 ft AGL at forecast start...otherwise
400-2100 ft AGL increasing to 2600-3400 ft AGL
in the afternoon.
Ventilation index...Poor (53) at forecast start. Max...good (536.0)
increasing to good to excellent (578.0-614.0)
late in the afternoon.
Rainfall amount.....0.00 inches.
Ceiling (kft).......6.1 increasing to 8.8 late in the morning, then
increasing to 10 late in the morning decreasing
to 8.6 late in the afternoon increasing to 11.
TIME (EDT) 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........42 59 42 30 21 22 25 51 52 41 47
Weather cov..... SCH SCH SCH SCH SCH SCH
Weather type.... RW RW RW RW RW RW
Tstm cov........
Chc of pcpn (%).10 10 10 10 20 20 20 20 20 20 10
Chc of thdr (%).10 10 10 10 10 10 10 10 10 10 10
Temp............56 57 60 63 65 66 67 68 68 69 69
Dewpoint........56 57 60 61 60 60 59 58 58 57 56
RH..............100 100 100 92 85 80 75 70 68 65 65
33 ft wind dir..W W NW NW NW NW NW NW NW NW NW
33 ft wind spd..12 12 12 12 12 13 13 13 13 13 13
20 ft wind dir..W W NW NW NW NW NW NW NW NW NW
20 ft wind spd..10 10 10 10 10 10 10 10 10 10 10
Wind gust.......16 16 18 18 18 18 18 18 18 18 18
Mix hgt (kft)...0.4 0.5 1.4 1.6 2.1 2.6 3.2 3.2 3.4 3.4 3.4
VIndx kt-ft/100.5 6 18 21 29 40 51 54 61 61 58
Ceiling (kft)...6.1 6.3 8.8 9.5 11 11 10 9.2 8.6 9.2 11
.TONIGHT...
Sky/weather.........Partly cloudy (25-35 percent) then becoming
mostly cloudy (45-55 percent) then becoming
partly cloudy (30-40 percent) then becoming
mostly cloudy (50-60 percent).
Chance of pcpn......10 percent.
Chance of thunder...9 percent.
Temperature.........Min 50.
RH..................Max 100 percent.
Dewpoint............54.
33-foot winds.......Northwest winds 12 to 13 mph.
20-foot winds.......Northwest winds around 10 mph.
Mixing height.......2800-3600 ft AGL decreasing to 500-1200 ft AGL
early in the evening.
Ventilation index...Good to excellent (449.0-728.0) decreasing to
poor to fair (50.0-165.0) early in the evening.
Rainfall amount.....0.00 inches.
Ceiling (kft).......11 decreasing to 4.0.
TIME (EDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........40 32 21 24 29 51 29 36 41 29 40 56
Weather cov.....
Weather type....
Tstm cov........
Chc of pcpn (%).10 10 10 10 10 10 0 0 10 10 10 10
Chc of thdr (%).10 10 10 10 10 0 0 0 10 10 10 0
Temp............68 68 66 61 58 57 56 55 55 54 52 52
Dewpoint........56 55 55 56 55 55 54 54 53 52 52 52
RH..............66 64 68 82 88 93 96 94 94 93 100 99
33 ft wind dir..NW NW NW NW NW NW N N N N N N
33 ft wind spd..13 13 13 12 12 12 13 13 13 13 13 13
20 ft wind dir..NW NW NW NW NW NW N N N N N N
20 ft wind spd..10 10 10 10 10 10 10 10 10 10 10 10
Wind gust.......18 18 18 17 17 17 18 18 18 18 18 18
Mix hgt (kft)...3.6 2.8 0.9 0.5 0.5 0.8 0.8 0.8 0.9 1.2 0.6 0.5
VIndx kt-ft/100.73 45 11 5 6 11 11 10 13 17 8 6
Ceiling (kft)...12 12 11 11 11 9.2 8.5 7.9 7.2 6.1 5.1 4.0
.SUNDAY...
Sky/weather.........Partly sunny (55-65 percent) then becoming
sunny (20-30 percent).
Chance of pcpn......10 percent.
Chance of thunder...4 percent.
Temperature.........Max 65.
RH..................Min 57 percent.
Dewpoint............52 decreasing to 49 late in the afternoon.
33-foot winds.......North winds 13 to 15 mph with gusts to around
26 mph.
20-foot winds.......North winds 10 to 12 mph with gusts to around
21 mph.
Mixing height.......500-1700 ft AGL increasing to 2600-4100 ft AGL
in the late morning and afternoon.
Ventilation index...Poor to good (72.0-561.0) increasing to
excellent (602.0) in the afternoon.
Rainfall amount.....0.00 inches.
Ceiling (kft).......4.0 early in the morning.
TIME (EDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........74 73 66 71 75 83 79 53 53 49 38 25
Weather cov.....
Weather type....
Tstm cov........
Chc of pcpn (%).10 10 10 0 0 0 0 0 0 0 0 0
Chc of thdr (%).0 0 0 0 0 0 0 0 0 0 0 0
Temp............51 50 51 56 58 59 60 61 62 63 63 64
Dewpoint........51 50 51 54 53 53 52 51 50 50 49 49
RH..............99 99 100 95 84 79 73 70 64 62 61 59
33 ft wind dir..N N N N N N N N N NW NW NW
33 ft wind spd..14 14 14 15 15 15 14 14 14 14 14 14
20 ft wind dir..N N N N N N N N N NW NW NW
20 ft wind spd..11 11 11 12 12 12 11 11 11 11 11 11
Wind gust.......19 19 19 21 21 21 21 21 21 19 19 19
Mix hgt (kft)...0.5 0.8 1.7 2.6 2.9 3.1 3.3 3.5 4.0 4.1 4.0 3.9
VIndx kt-ft/100.7 12 26 44 51 52 56 60 67 71 64 67
Ceiling (kft)...4.0 4.0 4.0
$$
Forecaster...TDUD
Requested by...Avi Shalom
Type of request...WILDFIRE
.TAG 2620185.1/MQT
.DELDT 08/22/26
.FormatterVersion 2.0.0
.EMAIL GloverP@michigan.gov,shaloma@michigan.gov,BakerS41@michigan.gov