394
FNUS73 KMQT 221823
FWSMQT

Spot Forecast for 1300 Railroad Rx...USFS
National Weather Service Marquette MI
223 PM EDT Tue Sep 22 2026

Forecast is based on ignition time of 1200 EDT on September 23.
If conditions become unrepresentative...contact the National Weather
Service.

.DISCUSSION...

High pressure is expected to remain over the area Wednesday and
Thursday. Highs will in the upper 60s for both days, with the
Wednesday night low reaching the upper 30s. RH is expected to be in
the mid-40s Wednesday afternoon and recover well overnight.
Mixing heights start at 2600 ft AGL at ignition time, reaching up
to 4k ft in the afternoon both days. Winds will be southeasterly and
light around 5mph Wednesday, becoming southerly overnight.


.WEDNESDAY...

Sky/weather.........Sunny (15-25 percent).
Chance of pcpn......0 percent.
Chance of thunder...0 percent.
Temperature.........61 at ignition...Max 68.
RH..................64 percent at ignition...Min 45 percent.
Dewpoint............46.
33-foot winds.......Winds southeast at 6 mph at
                    ignition...otherwise Southeast winds around 6
                    mph.
20-foot winds.......Southeast winds around 5 mph.
Mixing height.......2600 ft AGL at ignition...otherwise 2600-3900
                    ft AGL.
Ventilation index...Fair (257) at ignition. Max...good (432.0).
Rainfall amount.....0.00 inches.
Ceiling (kft).......25.

TIME (EDT)      12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........26  23  16  18  16  14
Weather cov.....
Weather type....
Tstm cov........
Chc of pcpn (%).0   0   0   0   0   0
Chc of thdr (%).0   0   0   0   0   0
Temp............61  62  64  66  67  67
Dewpoint........48  46  46  45  45  46
RH..............64  55  51  48  45  46
33 ft wind dir..SE  SE  SE  SE  SE  SE
33 ft wind spd..6   6   6   6   6   6
20 ft wind dir..SE  SE  SE  SE  SE  SE
20 ft wind spd..5   5   5   5   5   5
Wind gust.......10  10  10  10  10  10
Mix hgt (kft)...2.6 3.1 3.3 3.6 3.8 3.9
VIndx kt-ft/100.26  34  33  36  42  43
Ceiling (kft)...25  25  25  25  25  25

.WEDNESDAY NIGHT...

Sky/weather.........Mostly clear (15-25 percent).
Chance of pcpn......0 percent.
Chance of thunder...0 percent.
Temperature.........Min 37.
RH..................Max 100 percent.
Dewpoint............44 decreasing to 40 after 3 am.
33-foot winds.......South winds 5 to 6 mph.
20-foot winds.......South winds up to 5 mph.
Mixing height.......3300 ft AGL decreasing to 400-1000 ft AGL.
Ventilation index...Poor to good (30.0-393.0).
Rainfall amount.....0.00 inches.
Ceiling (kft).......25 decreasing to 3.7.

TIME (EDT)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........10  9   11  7   4   8   10  5   6   20  34  38
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............65  62  56  52  49  46  43  42  42  41  40  41
Dewpoint........46  46  45  45  44  43  43  42  42  41  40  41
RH..............50  57  66  76  83  91  98  100 100 100 100 100
33 ft wind dir..SE  SE  SE  SE  SE  SE  S   S   S   S   S   S
33 ft wind spd..6   6   6   6   6   6   6   6   6   5   5   5
20 ft wind dir..SE  SE  SE  SE  SE  SE  S   S   S   S   S   S
20 ft wind spd..5   5   5   5   5   5   5   5   5   4   4   4
Wind gust.......10  10  10  13  13  13  12  12  12  10  10  10
Mix hgt (kft)...3.3 1.0 0.6 0.5 0.5 0.4 0.5 0.4 0.4 0.4 0.4 0.4
VIndx kt-ft/100.39  9   6   4   4   4   4   4   3   4   3   3
Ceiling (kft)...25  25  25  25  25  25  25  25  25  18  11  3.7

.THURSDAY...

Sky/weather.........Partly sunny (55-65 percent).
Chance of pcpn......0 percent.
Chance of thunder...0 percent.
Temperature.........Max 68.
RH..................Min 51 percent.
Dewpoint............40 increasing to 46 late in the morning, then
                    increasing to 52 in the late morning and early
                    afternoon decreasing to 48 late in the
                    afternoon.
33-foot winds.......South winds 5 to 6 mph.
20-foot winds.......South winds up to 5 mph.
Mixing height.......400-2000 ft AGL increasing to 2700-4200 ft AGL
                    in the afternoon.
Ventilation index...Poor to good (38.0-481.0).
Rainfall amount.....0.00 inches.
Ceiling (kft).......3.2 decreasing to 2.2.

TIME (EDT)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........38  48  46  58  54  50  60  69  79  80  80  81
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............39  41  42  46  51  57  59  62  65  65  66  66
Dewpoint........39  41  42  46  51  54  52  51  49  49  48  48
RH..............100 100 100 100 100 89  77  67  58  56  53  51
33 ft wind dir..S   S   S   S   S   S   S   S   S   S   S   S
33 ft wind spd..6   6   6   5   5   5   5   5   5   5   5   5
20 ft wind dir..S   S   S   S   S   S   S   S   S   S   S   S
20 ft wind spd..5   5   5   4   4   4   4   4   4   4   4   4
Wind gust.......11  11  11  12  12  12  11  11  11  10  10  10
Mix hgt (kft)...0.4 0.4 0.5 0.8 1.3 2.0 2.7 3.4 3.8 4.2 4.2 3.8
VIndx kt-ft/100.4   4   4   8   14  20  28  36  42  47  48  42
Ceiling (kft)...3.2 2.7 2.2

$$
Forecaster...NJL/LH
Requested by...William Meginley
Type of request...PRESCRIBED
.TAG 2622341.0/MQT
.DELDT 09/22/26
.FormatterVersion 2.0.0
.EMAIL william.meginley@usda.gov