Spot Forecast
Issued by NWS Marquette, MI

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597
FNUS73 KMQT 152136
FWSMQT

Spot Forecast for Round Lake Hot Spot...NWS
National Weather Service Marquette MI
536 PM EDT Sun Sep 15 2024

Forecast is based on forecast start time of 1800 EDT on September 15.
If conditions become unrepresentative...contact the National Weather
Service.

.DISCUSSION...

A few isolated showers and thunderstorms will be possible
this evening as a weak low pressure system rides along the
high pressure ridge.  However, not much rainfall is expected
with any of these showers and chances are no rain will fall.
Light winds, though, and min RH values in the upper 50s well
help mitigate the situation.

.TONIGHT...

Sky/weather.........Mostly clear (15-25 percent).
Chance of pcpn......0 percent.
LAL.................1.
Temperature.........78 at forecast start...Min 56.
RH..................60 percent at forecast start...Max 100 percent.
Dewpoint............61 decreasing to 57 overnight.
33-foot winds.......Winds south at 7 mph at forecast
                    start...otherwise South winds 5 to 7 mph in the
                    evening and overnight becoming light.
20-foot winds.......South winds up to 6 mph in the evening and
                    overnight becoming light.
Mixing height.......2800 ft AGL at forecast start...otherwise
                    1600-2800 ft AGL decreasing to 200-600 ft AGL
                    early in the evening.
Ventilation index...Good (441) at forecast start. Min...poor
                    (31.0).
Haines Index........3 or very low potential for large plume
                    dominated fire growth at forecast start...max
                    5.
Rainfall amount.....0.00 inches.
Ceiling (kft).......14 increasing to 23.

TIME (EDT)      6 PM   8 PM   10 PM  MIDNGT 2 AM   4 AM
Sky (%).........32     13     13     13     12     17
Weather cov.....
Weather type....NONE   NONE   NONE   NONE   NONE   NONE
Tstm cov........
Chc of pcpn (%).0      0      0      0      0      0
LAL.............1      1      1      1      1      1
Temp............78     71     66     62     59     58
Dewpoint........63     62     60     59     58     58
RH..............60     72     82     91     98     100
33 ft wind......S 7    S 7    S 5    S 5    S 5    S 3
20 ft wind......S 6    S 6    S 4    S 4    S 4    S 2
Wind gust.......12     12     10     6      6      6
Mix hgt (ft)....2800   600    200    200    300    300
Haines index....3      3      4      4      5      5
VIndx kt-ft/100.44     9      3      5      5      5
Ceiling (kft)...15     14     16     19     23     23

.MONDAY...

Sky/weather.........Sunny (15-25 percent).
Chance of pcpn......0 percent.
LAL.................1.
Temperature.........Max 84.
RH..................Min 47 percent.
Dewpoint............59 increasing to 61 late in the afternoon.
33-foot winds.......Light winds becoming south 5 to 8 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.......200-1300 ft AGL increasing to 5200-5800 ft AGL.
Ventilation index...Poor to good (29.0-521.0) increasing to
                    excellent (721.0) late in the afternoon.
Haines Index........4 to 5 or low to moderate potential for large
                    plume dominated fire growth.
Rainfall amount.....0.00 inches.
Ceiling (kft).......20 decreasing to 17 late in the morning, then
                    decreasing to 14 early in the afternoon
                    decreasing to 12 early in the afternoon
                    increasing to 15.

TIME (EDT)      6 AM   8 AM   10 AM  NOON   2 PM   4 PM
Sky (%).........21     26     19     15     12     13
Weather cov.....
Weather type....NONE   NONE   NONE   NONE   NONE   NONE
Tstm cov........
Chc of pcpn (%).0      0      0      0      0      0
LAL.............1      1      1      1      1      1
Temp............57     57     67     76     82     84
Dewpoint........57     57     60     60     61     61
RH..............100    100    79     58     49     47
33 ft wind......S 3    S 3    S 6    S 8    S 8    S 8
20 ft wind......S 2    S 2    S 5    S 6    S 6    S 6
Wind gust.......6      6      8      10     10     10
Mix hgt (ft)....200    300    700    2600   5200   5800
Haines index....5      4      5      5      4      4
VIndx kt-ft/100.4      4      9      33     72     86
Ceiling (kft)...23     22     19     15     12     15

.MONDAY NIGHT...

Sky/weather.........Mostly clear (10-20 percent). Patchy fog after
                    3 am.
Chance of pcpn......0 percent.
LAL.................1.
Temperature.........Min 54.
RH..................Max 100 percent.
Dewpoint............58.
33-foot winds.......South winds 5 to 7 mph in the evening becoming
                    light.
20-foot winds.......South winds around 4 mph in the evening
                    becoming light.
Mixing height.......2000-3800 ft AGL decreasing to 0-500 ft AGL
                    early in the evening.
Ventilation index...Good to excellent (315.0-602.0) decreasing to
                    poor (7.0) early in the evening.
Haines Index........4 to 5 or low to moderate potential for large
                    plume dominated fire growth.
Rainfall amount.....0.00 inches.
Ceiling (kft).......19 increasing to 22 early in the evening.

TIME (EDT)      6 PM   8 PM   10 PM  MIDNGT 2 AM   4 AM
Sky (%).........14     14     18     20     21     22
Weather cov.....                                   PATCHY
Weather type....NONE   NONE   NONE   NONE   NONE   FOG
Tstm cov........
Chc of pcpn (%).0      0      0      0      0      0
LAL.............1      1      1      1      1      1
Temp............80     72     65     61     59     57
Dewpoint........60     60     58     57     56     56
RH..............51     66     78     87     89     95
33 ft wind......S 7    S 7    S 5    S 3    S 3    S 3
20 ft wind......S 6    S 6    S 4    S 2    S 2    S 2
Wind gust.......10     10     7      6      6      6
Mix hgt (ft)....3800   500    100    200    300    300
Haines index....4      5      5      5      5      5
VIndx kt-ft/100.60     7      1      3      4      4
Ceiling (kft)...19     22

.TUESDAY...

Sky/weather.........Sunny (15-25 percent). Patchy fog early in the
                    morning.
Chance of pcpn......0 percent.
LAL.................1.
Temperature.........Max 83.
RH..................Min 42 percent.
Dewpoint............55 increasing to 58 in the late morning and
                    afternoon.
33-foot winds.......South winds 5 to 7 mph.
20-foot winds.......South winds up to 6 mph.
Mixing height.......100-2000 ft AGL increasing to 5100-6200 ft AGL.
Ventilation index...Poor to good (16.0-408.0) increasing to good to
                    excellent (588.0-715.0) in the afternoon.
Haines Index........3 to 5 or very low to moderate potential for
                    large plume dominated fire growth.
Rainfall amount.....0.00 inches.
Ceiling (kft).......MISSING.

TIME (EDT)      6 AM   8 AM   10 AM  NOON   2 PM   4 PM
Sky (%).........23     28     23     17     11     8
Weather cov.....PATCHY
Weather type....FOG    NONE   NONE   NONE   NONE   NONE
Tstm cov........
Chc of pcpn (%).0      0      0      0      0      0
LAL.............1      1      1      1      1      1
Temp............54     56     68     77     81     82
Dewpoint........54     55     59     59     57     57
RH..............100    97     71     54     44     42
33 ft wind......S 5    S 5    S 6    S 6    S 6    S 7
20 ft wind......S 4    S 4    S 5    S 5    S 5    S 6
Wind gust.......5      5      8      11     11     11
Mix hgt (ft)....200    300    1100   3400   6000   5900
Haines index....5      4      4      4      3      4
VIndx kt-ft/100.2      3      14     41     72     65
Ceiling (kft)...

$$
Forecaster...TDUD
Requested by...WFO MQT
Type of request...WILDFIRE
.TAG 2422500.0/MQT
.DELDT 09/15/24
.FormatterVersion 2.0.0
.EMAIL nws.marquette@noaa.gov