650
FNUS73 KAPX 111040
FWSAPX

Spot Forecast for 6 Mile unit 3...USFS
National Weather Service Gaylord MI
640 AM EDT Fri Sep 11 2026

Forecast is based on ignition time of 1000 EDT on September 11.
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...

Rain-free weather will persist through tonight. Efficient daytime
heating and mixing will produce minimum RH values in the 30-40
percent range today, potentially reaching near-critical levels of
25- 30 percent for a brief time this afternoon. South-southwest
winds will also increase today, with sustained 20-ft winds of 5-10
mph and gusts around 15 mph.

RH values will increase Saturday as moisture returns, keeping
minimum RH values above 40 percent, though southwest winds will
strengthen with gusts 25-30 mph possible. Light showers are also
possible Saturday with generally low rainfall amounts of 0.05
inches or less. Winds will shift west Saturday evening and
northwest Saturday night night.

.TODAY...

Sky/weather.........Sunny (5-15 percent).
Chance of thunder...0 percent.
Max temperature.....Around 80.
Min humidity........36 percent.
20-foot winds.......Southwest winds 5 to 7 mph.
Transport winds.....Southwest 8 to 12 mph.
Mixing height.......1100-2600 ft AGL increasing to 4400-5700 ft AGL
                    in the afternoon.
Ventilation index...Poor to good (85.0-548.0).

TIME (EDT)      10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........5   0   1   2   1   2   11  17
Weather cov.....
Weather type....
Tstm cov........
Chc of thdr (%).0   0   0   0   0   0   0   0
Temp............63  69  72  74  75  76  76  75
RH..............54  44  39  38  37  36  36  36
20 ft wind dir..SW  SW  SW  SW  SW  SW  SW  SW
20 ft wind spd..7   7   7   7   7   8   8   8
20 ft wind gust.10  10  10  10  10  13  13  13
Mix hgt (kft)...1.1 2.6 4.4 5.1 5.6 5.7 5.5 5.4
Transp wind dir.SW  SW  SW  SW  SW  SW  S   S
Transp wind spd.9   9   8   9   9   10  12  12
Vrate kt-ft.....85  207 311 408 449 510 548 536
Ventrate Cat....PR  FR  GD  GD  GD  GD  GD  GD

.TONIGHT...

Sky/weather.........Partly cloudy (25-35 percent).
Chance of thunder...0 percent.
Min temperature.....Around 48.
Max humidity........100 percent.
20-foot winds.......South winds 5 to 7 mph. Gusts up to 20 mph
                    after 3 am.
Transport winds.....South 9 to 13 mph.
Mixing height.......4600 ft AGL decreasing to 400-1100 ft AGL.
Ventilation index...Poor to good (34.0-461.0).

TIME (EDT)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........14  18  15  27  17  24  35  38  41  39  44  50
Weather cov.....
Weather type....
Tstm cov........
Chc of thdr (%).0   0   0   0   0   0   0   0   0   0   0   0
Temp............73  70  66  61  57  54  53  53  53  53  54  55
RH..............37  42  50  65  77  90  96  96  96  96  93  90
20 ft wind dir..S   S   S   S   S   S   S   S   S   S   S   S
20 ft wind spd..7   7   7   6   6   6   7   7   7   8   8   8
20 ft wind gust.12  12  12  15  15  15  18  18  18  20  20  20
Mix hgt (kft)...4.6 1.1 0.5 0.4 0.4 0.4 0.5 0.4 0.5 0.5 0.5 0.5
Transp wind dir.S   S   S   S   S   S   S   S   S   S   S   S
Transp wind spd.12  10  10  9   10  12  12  13  12  13  13  13
Vrate kt-ft.....461 96  47  34  40  44  46  49  48  53  50  50
Ventrate Cat....GD  PR  PR  PR  PR  PR  PR  PR  PR  PR  PR  PR

.SATURDAY...

Sky/weather.........Mostly sunny (45-55 percent) then becoming
                    partly sunny (60-70 percent). Chance of rain
                    showers late in the afternoon.
Chance of thunder...11 percent.
Max temperature.....Around 82.
Min humidity........56 percent.
20-foot winds.......Southwest winds 6 to 12 mph.
Transport winds.....Southwest 13 to 21 mph.
Mixing height.......500-2300 ft AGL increasing to 3100-4700 ft AGL
                    early in the afternoon, then increasing to
                    5900-6300 ft AGL late in the afternoon
                    decreasing to 3500 ft AGL late in the
                    afternoon.
Ventilation index...Poor to good (53.0-468.0) increasing to
                    excellent (622.0) late in the afternoon, then
                    decreasing to good (493.0) late in the
                    afternoon.

TIME (EDT)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........40  46  48  57  80  53  55  61  65  74  73  71
Weather cov.....                                SCH SCH SCH CHC
Weather type....                                RW  RW  RW  RW
Tstm cov........
Chc of thdr (%).0   0   0   0   0   0   0   0   10  10  10  10
Temp............55  55  56  61  67  72  75  78  79  80  80  80
RH..............93  96  100 93  81  71  64  58  56  56  56  56
20 ft wind dir..S   S   S   S   S   S   SW  SW  SW  SW  SW  SW
20 ft wind spd..8   8   8   12  12  12  14  14  14  14  14  14
20 ft wind gust.18  18  18  21  21  21  21  21  21  23  23  23
Mix hgt (kft)...0.5 0.5 0.5 1.1 1.4 2.3 3.1 3.9 4.7 6.3 5.9 3.5
Transp wind dir.S   S   S   SW  S   S   SW  SW  SW  SW  SW  SW
Transp wind spd.13  13  13  14  15  16  17  18  18  20  21  16
Vrate kt-ft.....53  54  57  134 186 321 468 622 753 10711060493
Ventrate Cat....PR  PR  PR  FR  FR  GD  GD  EXL EXL EXL EXL GD

$$
Forecaster...NSC
Requested by...Travis Wiltse
Type of request...PRESCRIBED
.TAG 2621635.0/APX
.DELDT 09/11/26
.FormatterVersion 2.0.0
.EMAIL travis.a.wiltse@isda.gov