Suppression Forecast
Issued by NWS Marquette, MI

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596
FNUS73 KMQT 111149
FWSMQT

Spot Forecast for Betchler Marsh Unit 1...USFS
National Weather Service Marquette MI
749 AM EDT Fri Jul 11 2025

Forecast is based on ignition time of 0800 EDT on July 11.
If conditions become unrepresentative...contact the National Weather
Service.

.DISCUSSION...
Lingering high pressure will keep daytime weather today precip-free,
with moist southerly to southeasterly flow around 5 to 9 mph with a
few gusts in the evening hours to 15 mph. That moist flow will keep
RHs from falling below 50 percent today. Tonight, rain chances
increase from the south with an earliest reasonable start time of
around 10 PM (around 15 percent chance), but more likely (30+%)
will be around 3 AM along a warm front. A brief dry period is
expected in the afternoon hours (exact timing uncertain) before a
cold front approaches in the late evening hours (after 8PM). Ahead
of that cold front, some thunderstorms are possible, with chances
of lightning up to 50% by 5 PM Saturday. While generally a third
of an inch of precip is forecast, it is dependent on if one or
multiple cells move over the site. Chances of only 0.1" or less of
precip are around 10%, but chances of over 1" of rain are also
around 10%.


.REST OF TODAY...

Sky/weather.........Mostly sunny (25-35 percent). Patchy fog early
                    in the morning.
Chance of pcpn......10 percent.
Chance of thunder...4 percent.
Temperature.........56 at ignition...Max 82.
RH..................93 percent at ignition...Min 52 percent.
33-foot winds.......Winds southeast at 2 mph at
                    ignition...otherwise Light winds becoming south
                    5 to 7 mph in the late morning and afternoon.
20-foot winds.......Light winds becoming south up to 6 mph in the
                    late morning and afternoon.
Mixing height.......300 ft AGL at ignition...otherwise 300-1800 ft
                    AGL increasing to 2400-3900 ft AGL in the
                    afternoon.
Ventilation index...Poor (11) at ignition. Max...fair (292.0).
Rainfall amount.....0.00 inches.

TIME (EDT)      8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........31  24  18  18  24  32  40  43  43  43
Weather cov.....PTY
Weather type....FOG
Tstm cov........
Chc of pcpn (%).0   0   0   0   0   0   10  10  10  10
Chc of thdr (%).0   0   0   0   0   0   0   0   0   0
Temp............56  61  67  71  75  77  78  79  80  80
RH..............93  87  76  68  61  56  54  53  52  53
33 ft wind dir..SE  S   S   S   S   S   S   S   S   S
33 ft wind spd..2   5   5   5   6   6   6   7   7   7
20 ft wind dir..SE  S   S   S   S   S   S   S   S   S
20 ft wind spd..2   4   4   4   5   5   5   6   6   6
Wind gust.......    6   6   6   6   6   6   7   7   7
Mix hgt (kft)...0.3 0.7 1.1 1.8 2.4 3.3 3.7 3.9 3.7 3.6
VIndx kt-ft/100.1   3   7   13  17  26  26  27  26  29

.TONIGHT...

Sky/weather.........Partly cloudy (40-50 percent) then becoming
                    mostly cloudy (70-80 percent). Slight chance of
                    showers late in the evening. Chance of showers
                    overnight. Slight chance of thunderstorms early
                    in the morning.
Chance of pcpn......30 percent.
Chance of thunder...18 percent.
Temperature.........Min 63.
RH..................Max 98 percent.
33-foot winds.......Southeast winds 6 to 7 mph. Gusty and erratic
                    winds expected near thunderstorms early in the
                    morning.
20-foot winds.......Southeast winds 5 to 6 mph.
Mixing height.......2100-3100 ft AGL decreasing to 400-1100 ft AGL
                    early in the evening.
Ventilation index...Poor to fair (31.0-252.0).
Rainfall amount.....0.12 inches.

TIME (EDT)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........44  46  49  53  58  63  69  75  82  89  94  97
Weather cov.....                SCH SCH CHC CHC CHC CHC CHC CHC
Weather type....                RW  RW  RW  RW  RW  RW  RW  RW
Tstm cov........                                            SCH
Chc of pcpn (%).10  10  10  10  20  20  30  30  30  30  30  30
Chc of thdr (%).0   0   10  10  10  10  10  10  10  10  10  20
Temp............79  78  76  73  70  68  67  66  66  65  64  64
RH..............55  60  65  71  76  78  83  87  90  93  97  98
33 ft wind dir..SE  SE  SE  SE  SE  SE  SE  SE  SE  SE  SE  SE
33 ft wind spd..7   7   7   7   7   7   7   7   7   7   7   7
20 ft wind dir..SE  SE  SE  SE  SE  SE  SE  SE  SE  SE  SE  SE
20 ft wind spd..6   6   6   6   6   6   6   6   6   6   6   6
Wind gust.......10  10  10  10  10  10  10  10  10  10  10  10
Mix hgt (kft)...3.1 2.1 1.1 0.6 0.6 0.5 0.4 0.4 0.4 0.4 0.5 0.4
VIndx kt-ft/100.25  19  10  5   5   4   4   3   4   4   4   3

.SATURDAY...

Sky/weather.........Mostly cloudy (75-85 percent). Chance of
                    showers and slight chance of thunderstorms in
                    the morning, then showers likely and chance of
                    thunderstorms in the afternoon.
Chance of pcpn......70 percent.
Chance of thunder...45 percent.
Temperature.........Max 80.
RH..................Min 74 percent.
33-foot winds.......Southeast winds 5 to 6 mph shifting to the
                    southwest 6 to 9 mph in the late morning and
                    afternoon. Gusty and erratic winds expected
                    near thunderstorms early in the morning. Gusty
                    and erratic winds expected near thunderstorms
                    late in the morning.
20-foot winds.......Southwest winds 5 to 7 mph.
Mixing height.......500-1800 ft AGL.
Ventilation index...Poor to fair (35.0-192.0).
Rainfall amount.....0.34 inches.

TIME (EDT)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........96  94  72  81  79  81  77  81  84  77  69  62
Weather cov.....CHC CHC CHC CHC CHC CHC CHC CHC LKY LKY LKY LKY
Weather type....RW  RW  RW  RW  RW  RW  RW  RW  RW  RW  RW  RW
Tstm cov........SCH SCH             SCH SCH SCH CHC CHC CHC CHC
Chc of pcpn (%).40  40  50  50  50  50  50  50  70  70  70  70
Chc of thdr (%).20  20  10  10  10  20  20  20  40  40  40  50
Temp............64  65  66  69  70  72  72  74  75  76  77  77
RH..............98  96  97  91  90  86  84  82  79  76  74  74
33 ft wind dir..SE  SE  SE  S   S   S   SW  SW  SW  SW  SW  SW
33 ft wind spd..6   6   6   8   8   8   9   9   9   9   9   9
20 ft wind dir..SE  SE  SE  S   S   S   SW  SW  SW  SW  SW  SW
20 ft wind spd..5   5   5   6   6   6   7   7   7   7   7   7
Wind gust.......7   7   7   10  10  10  10  10  10  10  10  10
Mix hgt (kft)...0.5 0.6 0.6 0.8 0.9 1.2 1.4 1.5 1.7 1.7 1.8 1.7
VIndx kt-ft/100.4   4   5   7   9   13  15  16  17  18  19  19

$$
Forecaster...GS
Requested by...Brian wolvert
Type of request...PRESCRIBED
.TAG 2517810.0/MQT
.DELDT 07/11/25
.FormatterVersion 2.0.0
.EMAIL brian.wolvert@usda.gov