Spot Forecast
Issued by NWS Marquette, MI
Issued by NWS Marquette, MI
191
FNUS73 KMQT 230821
FWSMQT
Spot Forecast for Mount Homer fire...MI DNR
National Weather Service Marquette MI
421 AM EDT Sun Aug 23 2026
Forecast is based on forecast start time of 0500 EDT on August 23.
If conditions become unrepresentative...contact the National Weather
Service.
.DISCUSSION...
Gusty N to NW winds look to be the main fire weather concern during
the daytime today as gusts up to 25 mph could be seen at times this
afternoon. However, thinking some lake effect cloud cover at the very
least as well as advection of the marine layer inland will limit
wildfire potential; some lake effect sprinkles could be seen
throughout the morning to early afternoon hours as well, but don`t
expect much more than a trace to a hundredth of an inch of liquid as
high pressure is moving in from the west. Expect the air to be
fairly unstable in the lowest levels of the atmosphere, allowing for
smoke to rise away from the sfc. However, as high pressure arrives
tonight, the increase in nocturnal stability could lower any
remaining smoke back down to the sfc, although there is some
uncertainty on the mixing potentially continuing during the overnight
hours; the best chances for smoke continuing to rise during the
overnight hours will be on the hilltops and areas above the thermal
layer. Winds continue to slowly slacken tomorrow (Monday) as the
center of the high pressure finally arrives over us.
.REST OF TONIGHT...
Sky/weather.........Partly cloudy (40-50 percent).
Chance of pcpn......0 percent.
Chance of thunder...0 percent.
Temperature.........52 at forecast start...Min 50.
RH..................99 percent at forecast start...Max 99 percent.
Dewpoint............51.
33-foot winds.......Winds north at 9 mph at forecast
start...otherwise North winds around 9 mph with
gusts to around 21 mph.
20-foot winds.......North winds around 7 mph with gusts to around
17 mph.
Mixing height.......500 ft AGL at forecast start...otherwise 500 ft
AGL.
Ventilation index...Poor (62) at forecast start. Min...poor (62.0).
Rainfall amount.....0.00 inches.
Ceiling (kft).......10.
TIME (EDT) 5AM
Sky (%).........43
Weather cov.....
Weather type....
Tstm cov........
Chc of pcpn (%).0
Chc of thdr (%).0
Temp............52
Dewpoint........51
RH..............99
33 ft wind dir..N
33 ft wind spd..9
20 ft wind dir..N
20 ft wind spd..7
Wind gust.......17
Mix hgt (kft)...0.5
VIndx kt-ft/100.6
Ceiling (kft)...10
.TODAY...
Sky/weather.........Mostly sunny (45-55 percent).
Chance of pcpn......10 percent.
Chance of thunder...3 percent.
Temperature.........Max 64.
RH..................Min 63 percent.
Dewpoint............51.
33-foot winds.......North winds 10 to 14 mph with gusts to around
25 mph.
20-foot winds.......North winds 8 to 11 mph with gusts to around 20
mph.
Mixing height.......600-1300 ft AGL increasing to 2800-4400 ft AGL
in the late morning and afternoon.
Ventilation index...Poor to good (79.0-533.0) increasing to
excellent (626.0) in the late morning and
afternoon.
Rainfall amount.....0.00 inches.
Ceiling (kft).......8.5 increasing to 13 early in the morning, then
increasing to 17 early in the morning
decreasing to 13 late in the morning decreasing
to 7.2 decreasing to 5.1 late in the morning
increasing to 5.6 decreasing to 4.1 early in
the afternoon increasing to 5.3 increasing to
10 late in the afternoon.
TIME (EDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........44 38 32 43 59 66 59 63 68 59 57 44
Weather cov.....
Weather type....
Tstm cov........
Chc of pcpn (%).0 10 10 10 10 10 10 10 10 10 0 0
Chc of thdr (%).0 0 0 0 0 0 0 0 0 0 0 0
Temp............51 51 51 56 58 59 61 61 62 63 63 62
Dewpoint........51 50 51 53 53 53 52 51 50 51 50 50
RH..............98 96 97 92 84 79 72 69 66 65 63 64
33 ft wind dir..N N N N N N N N N N N N
33 ft wind spd..12 12 12 14 14 14 14 14 14 14 14 14
20 ft wind dir..N N N N N N N N N N N N
20 ft wind spd..10 10 10 11 11 11 11 11 11 11 11 11
Wind gust.......18 18 18 20 20 20 20 20 20 19 19 19
Mix hgt (kft)...0.6 0.7 1.3 2.8 3.1 3.5 3.8 3.9 4.0 4.3 4.4 4.2
VIndx kt-ft/100.8 11 21 53 63 67 73 74 75 87 84 72
Ceiling (kft)...8.5 13 17 13 7.2 5.1 6.1 5.6 4.1 5.3 5.5 10
.TONIGHT...
Sky/weather.........Mostly clear (15-25 percent).
Chance of pcpn......0 percent.
Chance of thunder...0 percent.
Temperature.........Min 48.
RH..................Max 100 percent.
Dewpoint............48.
33-foot winds.......Northwest winds 8 to 12 mph.
20-foot winds.......Northwest winds 6 to 10 mph.
Mixing height.......3500-4000 ft AGL decreasing to 400-1200 ft AGL
early in the evening.
Ventilation index...Good to excellent (497.0-636.0) decreasing to
poor to fair (42.0-133.0) early in the evening.
Rainfall amount.....0.00 inches.
Ceiling (kft).......16 increasing to 24.
TIME (EDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........35 13 13 15 11 20 18 9 11 10 7 4
Weather cov.....
Weather type....
Tstm cov........
Chc of pcpn (%).0 0 0 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............61 60 58 55 53 51 50 49 49 49 49 49
Dewpoint........50 49 49 49 49 49 49 48 47 47 48 49
RH..............67 66 71 79 86 93 96 96 94 92 97 100
33 ft wind dir..NW NW NW NW NW NW NW NW NW NW NW NW
33 ft wind spd..12 12 12 9 9 9 8 8 8 8 8 8
20 ft wind dir..NW NW NW NW NW NW NW NW NW NW NW NW
20 ft wind spd..10 10 10 7 7 7 6 6 6 6 6 6
Wind gust.......18 18 18 16 16 16 14 14 14 13 13 13
Mix hgt (kft)...4.0 3.5 1.2 0.8 0.8 0.5 0.4 0.4 0.4 0.4 0.4 0.4
VIndx kt-ft/100.64 50 13 9 9 6 5 5 5 5 4 4
Ceiling (kft)...16 21 24 25 25 24 25 25 25 25 25 25
.MONDAY...
Sky/weather.........Sunny (10-20 percent).
Chance of pcpn......0 percent.
Chance of thunder...0 percent.
Temperature.........Max 70.
RH..................Min 53 percent.
Dewpoint............49 increasing to 52 in the late morning and
afternoon.
33-foot winds.......Northwest winds 7 to 10 mph.
20-foot winds.......North winds 6 to 8 mph.
Mixing height.......400-1900 ft AGL increasing to 2600-3500 ft AGL
late in the morning.
Ventilation index...Poor to good (42.0-518.0).
Rainfall amount.....0.00 inches.
Ceiling (kft).......25 early in the morning.
TIME (EDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........9 8 1 0 2 9 11 13 18 17 13 27
Weather cov.....
Weather type....
Tstm cov........
Chc of pcpn (%).0 0 0 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............49 48 50 56 61 63 65 66 67 68 68 67
Dewpoint........48 48 50 53 53 53 52 51 51 51 51 51
RH..............98 99 99 90 77 68 62 58 55 54 53 55
33 ft wind dir..NW NW NW NW NW NW N N N N N N
33 ft wind spd..7 7 7 9 9 9 10 10 10 9 9 9
20 ft wind dir..NW NW NW NW NW NW N N N N N N
20 ft wind spd..6 6 6 7 7 7 8 8 8 7 7 7
Wind gust.......13 13 13 13 13 13 12 12 12 11 11 11
Mix hgt (kft)...0.4 0.4 0.5 1.3 1.9 2.6 3.1 3.2 3.5 3.4 3.1 2.9
VIndx kt-ft/100.4 4 5 16 25 34 47 45 52 40 37 38
Ceiling (kft)...25 25 25
$$
Forecaster...TAP
Requested by...Avi Shalom
Type of request...WILDFIRE
.TAG 2620282.0/MQT
.DELDT 08/23/26
.FormatterVersion 2.0.0
.EMAIL BakerS41@michigan.gov,shaloma@michigan.gov,GloverP@michigan.gov